Data Report
Bulletin / 1990 JAN-SEP
Contributed by CUPWA
Start
Date 1990-01-06
Origin Time 1258 53.97 +- 0.41
Zone 50
Easting 513.90 +- 3.68 Longitude 117.145
Northing 6586.61 +- 3.44 Latitude -30.854
Depth 3.48 +- 10.47
Nearest recorder = 23.3 km Gap = 176.3 deg Accuracy = A
Effects Code = Imax = 0 Fault =
4 km S (165 deg) of CAS
WESTERN AUSTRALIA
173 km NE ( 46 deg) of PERTH
4 km E ( 95 deg) of Manmanning
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.3
PHASE INFORMATION
DATA USED
BAL i-P 62.10 0.10 1.33 62.17 -0.07 50.1 303 4.3 4.3
BAL i S 67.90 0.10 1.20 67.86 0.04 50.1 303 4.3 4.3
DOW S-P 2.70 0.20 1.23 2.67 0.03 23.3 221 0.0 0.0
DOW P 59.30 5.00 0.65 57.83 1.47 23.3 221 9.2 9.2
DOW S 62.00 5.00 0.58 60.50 1.50 23.3 221 9.2 9.2
KLB i-P 70.50 0.10 1.26 70.39 0.11 100.6 144 2.1 2.1
KLB i S 81.70 0.10 1.13 81.78 -0.08 100.6 144 2.1 2.1
MRWA e P 86.00 0.70 0.56 85.94 0.06 212.4 328 -42.2 42.2
MRWA e S 110.70 0.30 0.60 109.80 0.90 212.4 328 -40.3 40.3
MUN e P 78.30 0.10 0.85 78.34 -0.04 153.2 215 -30.8 30.8
MUN i PG 80.00 0.10 1.21 78.97 1.03 153.2 215 1.4 1.4
MUN e S 96.30 0.20 0.67 96.31 -0.01 153.2 215 1.4 1.4
NWAO e S2 116.00 0.20 0.36 115.93 0.07 229.9 177 -23.9 23.9
NWAO e S 116.00 0.20 0.64 113.48 2.52 229.9 177 -40.3 40.3
Velocity Ratios
BAL KLB MUN
BAL 1.71 1.64 1.75
0.03 0.06 0.04
KLB 1.64 1.68 1.87
0.06 0.02 0.09
MUN 1.75 1.87 1.74
0.04 0.09 0.02
Start
Date 1990-01-12
Origin Time 0951 2.09 +- 7.86
Zone 52
Easting 735.20 +- 40.72 Longitude 131.295
Northing 7454.07 +- 40.88 Latitude -23.005
Depth 5.00 +- 64.11 N
Nearest recorder = 471.2 km Gap = 156.5 deg Accuracy = C
Effects Code = Imax = 0 Fault =
276 km W (285 deg) of ASPA
NORTHERN TERRITORY
97 km SW (212 deg) of YUENDUMU
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 3.0
PHASE INFORMATION
DATA USED
FORR e P 119.00 0.20 0.62 119.58 -0.58 920.8 199 -42.2 42.2
FORR e S 204.50 0.30 0.52 206.83 -2.33 920.8 199 -40.3 40.3
MBL e P 153.00 0.50 0.51 153.68 -0.68 1203.2 277 -42.2 42.2
MBL e S 269.00 1.00 0.40 266.21 2.79 1203.2 277 -40.3 40.3
WARB e P 79.80 0.20 0.65 79.32 0.48 588.0 232 -42.2 42.2
WARB e S 137.00 0.30 0.54 136.73 0.27 588.0 232 -40.3 40.3
WB5 i P 65.40 0.10 1.09 65.19 0.21 471.2 43 -42.2 42.2
WB5 i S 112.00 0.20 0.86 112.14 -0.14 471.2 43 -40.3 40.3
Velocity Ratios
WB5 WARB
WB5 1.74 1.74
0.01 0.07
WARB 1.74 1.74
0.07 0.01
Start
Date 1990-01-13
Origin Time 1430 5.46 +- 1.52
Zone 50
Easting 568.73 +- 7.40 Longitude 117.719
Northing 6586.12 +- 5.79 Latitude -30.856
Depth 4.01 +- 13.44
Nearest recorder = 81.6 km Gap = 134.2 deg Accuracy = A
Effects Code = Imax = 0 Fault =
14 km W (249 deg) of BENC
WESTERN AUSTRALIA
215 km NE ( 56 deg) of PERTH
13 km W (252 deg) of Bencubbin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.4
PHASE INFORMATION
DATA USED
BAL i+P 21.90 0.10 1.26 21.92 -0.02 100.8 285 2.5 2.5
BAL e S 33.20 0.20 0.69 33.95 -0.75 100.8 285 2.5 2.5
COOL e S 86.00 0.50 0.52 86.96 -0.96 327.8 91 -39.8 39.8
KLB e P 19.10 0.20 0.78 18.80 0.30 81.6 177 3.0 3.0
KLB e S 28.00 0.20 0.70 28.55 -0.55 81.6 177 3.0 3.0
MRWA e P 41.60 0.20 0.71 41.81 -0.21 246.0 317 -40.9 40.9
MRWA e S 69.00 0.20 0.64 69.19 -0.19 246.0 317 -39.8 39.8
MUN e P 35.00 0.20 0.73 34.85 0.15 190.0 228 -31.2 31.2
MUN e S 55.80 0.20 0.65 56.91 -1.11 190.0 228 -29.6 29.6
Velocity Ratios
KLB BAL MUN MRWA
KLB 1.65 0.00 1.75 1.82
0.04 0.00 0.07 0.05
BAL 0.00 1.69 1.73 1.82
0.00 0.02 0.07 0.05
MUN 1.75 1.73 1.70 2.00
0.07 0.07 0.02 0.19
MRWA 1.82 1.82 2.00 1.76
0.05 0.05 0.19 0.02
Start
Date 1990-01-16
Origin Time 0251 57.45 +- 1.46
Zone 50
Easting 549.03 +- 15.04 Longitude 117.515
Northing 6549.56 +- 9.00 Latitude -31.187
Depth 1.00 +- 21.98 C
Nearest recorder = 50.6 km Gap = 186.8 deg Accuracy = B
Effects Code = Imax = 0 Fault =
25 km NW (325 deg) of KBN
WESTERN AUSTRALIA
179 km NE ( 62 deg) of PERTH
40 km S (175 deg) of Koorda
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.1
PHASE INFORMATION
DATA USED
BAL e P 74.00 0.50 0.64 73.84 0.16 100.5 309 0.7 0.7
BAL e S 85.00 0.50 0.58 85.84 -0.84 100.5 309 0.7 0.7
COOL e S 152.60 0.30 0.57 143.95 8.65 348.3 85 -39.8 39.8
KLB e P 65.70 0.10 0.93 65.70 -0.00 50.6 152 1.5 1.5
KLB e S 71.30 0.20 0.73 71.74 -0.44 50.6 152 1.5 1.5
MRWA e P 98.50 0.50 0.59 96.16 2.34 262.6 325 -40.9 40.9
MRWA e S 125.00 1.00 0.46 125.32 -0.32 262.6 325 -39.8 39.8
MRWA e SG 129.30 0.30 0.58 131.64 -2.34 262.6 325 0.3 0.3
MUN e P 81.70 0.10 0.85 81.78 -0.08 151.8 234 -31.2 31.2
MUN e S 99.10 0.30 0.61 99.95 -0.85 151.8 234 -29.6 29.6
NWAO e S 110.00 0.50 0.54 110.47 -0.47 194.7 187 -29.6 29.6
Velocity Ratios
KLB BAL MUN
KLB 1.68 0.00 1.74
0.05 0.00 0.05
BAL 0.00 1.66 0.00
0.00 0.08 0.00
MUN 1.74 0.00 1.72
0.05 0.00 0.02
Start
Date 1990-01-17
Origin Time 0638 8.23 +- 0.00
Zone 50
Easting 499.06 +- 0.00 Longitude 116.990
Northing 6490.56 +- 0.00 Latitude -31.720
Depth 5.75 +- 0.00
Nearest recorder = 74.4 km Gap = 99.1 deg Accuracy = A
Effects Code = F Imax = 6 Fault =
25 km SE (122 deg) of YORK
WESTERN AUSTRALIA
111 km E ( 77 deg) of PERTH
10 km S (191 deg) of Meckering
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 5.5
PHASE INFORMATION
DATA USED
BAL i+P 28.60 0.10 1.24 28.60 -0.00 126.3 347 -31.2 31.2
BRS i-PN 389.40 0.10 0.70 0.00 389.40 3484.9 91 -50.8 52.6
BRS i P 391.00 0.10 1.00 391.80 -0.80 3484.9 91 -60.9 61.0
BRS e S 670.00 1.00 0.40 698.32 -28.32 3484.9 91 -60.1 60.0
COOL i P 63.00 0.10 1.11 64.18 -1.18 406.4 77 -40.9 40.9
FORR e P 141.40 0.20 0.57 145.27 -3.87 1064.0 87 -40.9 40.9
FORR e S 245.40 0.50 0.39 249.11 -3.71 1064.0 87 -39.8 39.8
KLB i-P 20.40 0.10 1.29 20.40 0.00 74.4 79 4.7 4.7
KNA e P 209.00 2.00 0.28 278.08 -69.08 2144.5 36 -43.2 43.7
MBL i+P 157.00 0.10 1.00 162.46 -5.46 1203.7 14 -40.9 40.9
MBL e S 272.60 0.30 0.51 279.36 -6.76 1203.7 14 -39.8 39.8
MEKA i-P 84.50 0.10 1.07 86.23 -1.73 585.2 15 -40.9 40.9
MRWA i+P 50.00 0.10 1.14 50.21 -0.21 293.3 340 -40.9 40.9
MUN i-P 21.20 0.10 1.29 21.20 -0.00 79.3 248 4.3 4.3
NANU i-P 133.40 0.20 0.82 140.66 -7.26 1027.0 351 -40.9 40.9
NWAO i-P 29.90 0.10 1.23 29.90 0.00 135.7 170 -31.2 31.2
RKG i+P 53.40 0.10 1.14 53.00 0.40 315.9 179 -40.9 40.9
WARB i+P 148.80 0.10 1.00 152.96 -4.16 1126.5 59 -40.9 40.9
NO VELOCITY RATIOS
Start
Date 1990-01-17
Origin Time 0741 16.43 +- 0.80
Zone 50
Easting 499.97 +- 4.82 Longitude 117.000
Northing 6487.37 +- 6.95 Latitude -31.749
Depth 12.72 +- 13.74
Nearest recorder = 74.2 km Gap = 94.0 deg Accuracy = A
Effects Code = Imax = 0 Fault =
28 km SE (127 deg) of YORK
WESTERN AUSTRALIA
111 km E ( 79 deg) of PERTH
13 km S (184 deg) of Meckering
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
PHASE INFORMATION
DATA USED
BAL e P 36.70 0.20 0.75 36.67 0.03 129.6 347 -31.2 31.2
BAL e S 51.00 0.30 0.62 51.85 -0.85 129.6 347 -29.6 29.6
COOL w S 129.80 1.00 0.45 113.35 16.45 406.2 77 -39.8 39.8
KLB i-P 28.70 0.10 1.29 28.71 -0.01 74.2 76 10.0 10.0
KLB e S 37.30 0.30 0.65 37.70 -0.40 74.2 76 10.0 10.0
MRWA e P 58.30 0.20 0.70 58.07 0.23 296.6 340 -40.9 40.9
MRWA e S 93.50 0.20 0.63 89.54 3.96 296.6 340 -39.8 39.8
MUN i-P 29.50 0.20 1.12 29.50 0.00 79.1 250 9.3 9.3
MUN e S 38.60 0.20 0.71 39.06 -0.46 79.1 250 9.3 9.3
NWAO e P 37.00 0.20 0.75 37.05 -0.05 132.4 170 -31.2 31.2
NWAO e S 53.80 0.30 0.62 52.51 1.29 132.4 170 -29.6 29.6
Velocity Ratios
KLB MUN BAL
KLB 1.70 0.00 1.71
0.04 0.00 0.14
MUN 0.00 1.70 1.72
0.00 0.04 0.17
BAL 1.71 1.72 1.71
0.14 0.17 0.03
Start
Date 1990-01-17
Origin Time 1539 30.05 +- 0.78
Zone 50
Easting 499.91 +- 4.60 Longitude 116.999
Northing 6492.20 +- 5.77 Latitude -31.705
Depth 5.82 +- 12.25
Nearest recorder = 73.2 km Gap = 93.1 deg Accuracy = A
Effects Code = Imax = 0 Fault =
25 km SE (118 deg) of YORK
WESTERN AUSTRALIA
112 km E ( 76 deg) of PERTH
8 km S (187 deg) of Meckering
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
PHASE INFORMATION
DATA USED
BAL e P 50.30 0.20 0.75 50.22 0.08 124.9 347 -31.2 31.2
BAL e S 64.40 0.30 0.63 65.27 -0.87 124.9 347 -29.6 29.6
COOL w S 142.00 2.00 0.39 128.01 13.99 405.2 78 -39.8 39.8
KLB e P 42.10 0.20 0.79 42.04 0.06 73.2 80 4.8 4.8
KLB e S 50.40 0.30 0.65 50.81 -0.41 73.2 80 4.8 4.8
MRWA e P 72.10 0.20 0.70 71.87 0.23 292.0 340 -40.9 40.9
MRWA e S 108.00 0.40 0.55 103.42 4.58 292.0 340 -39.8 39.8
MUN i+P 43.30 0.10 1.28 43.25 0.05 80.7 247 4.3 4.3
MUN e S 52.40 0.20 0.70 52.91 -0.51 80.7 247 4.3 4.3
NWAO e P 51.30 0.20 0.75 51.92 -0.62 137.1 170 -31.2 31.2
NWAO e S 68.00 0.20 0.67 68.27 -0.27 137.1 170 -29.6 29.6
Velocity Ratios
KLB MUN BAL NWAO
KLB 1.69 0.00 1.71 1.91
0.05 0.00 0.16 0.14
MUN 0.00 1.69 1.71 1.95
0.00 0.03 0.15 0.13
BAL 1.71 1.71 1.70 0.00
0.16 0.15 0.03 0.00
NWAO 1.91 1.95 0.00 1.79
0.14 0.13 0.00 0.03
Start
Date 1990-01-17
Origin Time 1652 9.19 +- 1.40
Zone 50
Easting 498.00 +- 7.45 Longitude 116.979
Northing 6492.31 +- 10.53 Latitude -31.704
Depth 3.39 +- 37.39
Nearest recorder = 75.1 km Gap = 100.9 deg Accuracy = A
Effects Code = Imax = 0 Fault =
24 km SE (120 deg) of YORK
WESTERN AUSTRALIA
110 km E ( 76 deg) of PERTH
9 km S (200 deg) of Meckering
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
PHASE INFORMATION
DATA USED
BAL e P 29.70 0.20 0.75 29.49 0.21 124.4 347 1.7 1.7
BAL e S 43.40 0.30 0.63 44.34 -0.94 124.4 347 1.7 1.7
KLB e P 21.40 0.10 0.90 21.45 -0.05 75.1 80 2.8 2.8
KLB e S 30.10 0.20 0.71 30.43 -0.33 75.1 80 2.8 2.8
MUN i-P 22.10 0.10 1.29 22.09 0.01 79.0 247 2.6 2.6
MUN e S 31.10 0.20 0.71 31.52 -0.42 79.0 247 2.6 2.6
NWAO w P 32.00 1.00 0.55 31.33 0.67 137.6 170 -31.2 31.2
NWAO e S 47.00 0.50 0.56 47.85 -0.85 137.6 170 -29.6 29.6
Velocity Ratios
KLB MUN BAL
KLB 1.71 0.00 1.60
0.03 0.00 0.12
MUN 0.00 1.70 1.62
0.00 0.03 0.14
BAL 1.60 1.62 1.67
0.12 0.14 0.03
Start
Date 1990-01-18
Origin Time 1829 29.31 +- 17.90
Zone 52
Easting 639.99 +- 51.15 Longitude 130.394
Northing 7163.50 +- 53.01 Latitude -25.639
Depth 5.00 +- 134.84 N
Nearest recorder = 380.6 km Gap = 167.9 deg Accuracy = C
Effects Code = Imax = 0 Fault =
380 km E ( 81 deg) of WARB
NORTHERN TERRITORY
71 km SW (243 deg) of AYERS ROCK
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 2.5
PHASE INFORMATION
DATA USED
FORR e P 110.50 0.50 0.54 111.13 -0.63 615.5 201 -40.9 40.9
FORR e S 174.00 1.00 0.42 173.05 0.95 615.5 201 -39.8 39.8
WARB e P 81.00 0.20 0.68 82.16 -1.16 380.6 260 -40.9 40.9
WARB e S 122.40 0.20 0.61 122.07 0.33 380.6 260 -39.8 39.8
WB5 e P 128.00 0.20 0.63 128.70 -0.70 758.2 33 -40.9 40.9
WB5 e S 204.50 0.20 0.57 203.96 0.54 758.2 33 -39.8 39.8
Velocity Ratios
WARB FORR WB5
WARB 1.80 1.75 1.75
0.01 0.08 0.02
FORR 1.75 1.78 1.74
0.08 0.02 0.14
WB5 1.75 1.74 1.78
0.02 0.14 0.01
Start
Date 1990-01-19
Origin Time 0223 1.13 +- 2.08
Zone 50
Easting 497.77 +- 9.67 Longitude 116.976
Northing 6492.83 +- 15.78 Latitude -31.700
Depth 2.93 +- 34.73
Nearest recorder = 75.3 km Gap = 165.7 deg Accuracy = A
Effects Code = Imax = 0 Fault =
23 km SE (119 deg) of YORK
WESTERN AUSTRALIA
110 km E ( 76 deg) of PERTH
8 km S (202 deg) of Meckering
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.3
PHASE INFORMATION
DATA USED
BAL i P 21.40 0.10 1.24 21.34 0.06 123.8 348 1.5 1.5
BAL i S 35.40 0.10 1.11 36.12 -0.72 123.8 348 1.5 1.5
KLB i P 13.40 0.10 1.29 13.42 -0.02 75.3 81 2.5 2.5
KLB i S 22.00 0.10 1.16 22.41 -0.41 75.3 81 2.5 2.5
MRWA w P 42.00 1.00 0.52 43.10 -1.10 290.7 340 -40.9 40.9
MRWA e S 74.10 0.20 0.63 74.74 -0.64 290.7 340 -39.8 39.8
MUN e P 14.00 1.00 0.57 14.02 -0.02 79.0 246 2.3 2.3
MUN e S 23.00 1.00 0.51 23.46 -0.46 79.0 246 2.3 2.3
RKG e P 51.00 0.50 0.58 46.49 4.51 318.2 179 -40.9 40.9
RKG e S 86.70 0.50 0.52 80.71 5.99 318.2 179 -39.8 39.8
Velocity Ratios
KLB MUN BAL
KLB 1.70 0.00 1.67
0.02 0.00 0.07
MUN 0.00 1.70 0.00
0.00 0.23 0.00
BAL 1.67 0.00 1.69
0.07 0.00 0.01
Start
Date 1990-01-19
Origin Time 0416 3.24 +- 5.35
Zone 50
Easting 453.04 +- 23.53 Longitude 116.508
Northing 6565.39 +- 24.48 Latitude -31.044
Depth 3.58 +- 66.45
Nearest recorder = 107.4 km Gap = 151.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
30 km N ( 4 deg) of PIG3
WESTERN AUSTRALIA
118 km NE ( 32 deg) of PERTH
7 km NE ( 54 deg) of Calingiri
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.5
PHASE INFORMATION
DATA USED
MEKA w P 51.00 1.00 0.49 73.51 -22.51 529.0 22 -42.2 42.2
MEKA e S 99.00 0.50 0.49 125.74 -26.74 529.0 22 -40.3 40.3
MRWA i P 34.80 0.10 1.18 34.70 0.10 208.3 346 -42.2 42.2
MRWA e S 58.00 0.20 0.65 58.18 -0.18 208.3 346 -40.3 40.3
MUN i+P 20.80 0.10 1.25 20.77 0.03 107.4 195 2.0 2.0
MUN i S 32.90 0.10 1.13 32.92 -0.02 107.4 195 2.0 2.0
WARB e P 145.70 0.30 0.56 146.30 -0.60 1131.0 63 -42.2 42.2
WARB e S 253.00 0.50 0.46 252.48 0.52 1131.0 63 -40.3 40.3
Velocity Ratios
MUN MRWA WARB
MUN 1.69 1.79 1.76
0.02 0.05 0.01
MRWA 1.79 1.74 1.76
0.05 0.01 0.01
WARB 1.76 1.76 1.75
0.01 0.01 0.01
Start
Date 1990-01-19
Origin Time 0649 8.22 +- 49.67
Zone 52
Easting 695.12 +- 807.33 Longitude 130.937
Northing 7211.00 +- 552.23 Latitude -25.204
Depth 5.00 +-1341.15 N
Nearest recorder = 444.3 km Gap = 274.3 deg Accuracy = D
Effects Code = Imax = 0 Fault =
344 km SW (240 deg) of ASPA
NORTHERN TERRITORY
19 km NW (330 deg) of AYERS ROCK
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 3.1
PHASE INFORMATION
DATA USED
FORR e P 97.00 0.20 0.64 96.70 0.30 680.9 203 -42.2 42.2
FORR e S 162.00 0.50 0.48 162.45 -0.45 680.9 203 -40.3 40.3
MBL w P 162.00 1.00 0.45 162.41 -0.41 1224.6 289 -42.2 42.2
MBL w S 270.00 5.00 0.29 276.85 -6.85 1224.6 289 -40.3 40.3
WARB e P 68.10 0.20 0.67 68.08 0.02 444.3 254 -42.2 42.2
WARB e S 112.80 0.30 0.56 112.62 0.18 444.3 254 -40.3 40.3
Velocity Ratios
WARB FORR
WARB 1.75 1.70
0.01 0.05
FORR 1.70 1.73
0.05 0.01
Start
Date 1990-01-20
Origin Time 1145 37.39 +- 2.36
Zone 50
Easting 514.81 +- 26.09 Longitude 117.155
Northing 6585.55 +- 27.66 Latitude -30.863
Depth 0.47 +- 52.83
Nearest recorder = 51.5 km Gap = 176.4 deg Accuracy = A
Effects Code = Imax = 0 Fault =
6 km S (159 deg) of CAS
WESTERN AUSTRALIA
173 km NE ( 46 deg) of PERTH
5 km E (105 deg) of Manmanning
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.2
PHASE INFORMATION
DATA USED
BAL i-P 45.70 0.10 1.33 45.78 -0.08 51.5 303 0.9 0.9
BAL i S 51.70 0.10 1.20 51.93 -0.23 51.5 303 0.9 0.9
KLB e P 53.70 0.10 0.88 53.57 0.13 99.2 144 0.4 0.4
KLB e S 64.70 0.30 0.64 65.41 -0.71 99.2 144 0.4 0.4
MRWA e PN 70.10 0.20 0.50 70.14 -0.04 213.8 328 -40.9 40.9
MUN e P 62.10 0.20 0.74 61.91 0.19 152.9 215 -31.2 31.2
MUN e S 79.00 4.00 0.37 80.22 -1.22 152.9 215 -29.6 29.6
Velocity Ratios
BAL KLB MUN
BAL 1.72 1.62 0.00
0.03 0.09 0.00
KLB 1.62 1.67 0.00
0.09 0.03 0.00
MUN 0.00 0.00 1.68
0.00 0.00 0.18
Start
Date 1990-01-20
Origin Time 1853 14.49 +- 0.00
Zone 51
Easting 489.68 +- 0.00 Longitude 122.896
Northing 6972.94 +- 0.00 Latitude -27.367
Depth 5.00 +- 0.00 N
Nearest recorder = 395.1 km Gap = 131.7 deg Accuracy = C
Effects Code = Imax = 0 Fault = \
381 km N ( 20 deg) of KLKB
WESTERN AUSTRALIA
850 km NE ( 55 deg) of PERTH
68 km N (358 deg) of Cosmo Newberry
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.3
PHASE INFORMATION
DATA USED
COOL e P 73.00 0.20 0.67 72.85 0.15 425.3 203 -40.9 40.9
COOL e S 118.00 1.00 0.44 116.95 1.05 425.3 203 -39.8 39.8
FORR w P 110.00 2.00 0.42 98.25 11.75 631.3 128 -40.9 40.9
FORR w S 154.00 5.00 0.31 161.65 -7.65 631.3 128 -39.8 39.8
MBL e S 188.00 1.00 0.41 188.31 -0.31 754.5 335 -39.8 39.8
MEKA e P 74.60 0.20 0.67 74.80 -0.20 441.1 279 -40.9 40.9
MEKA e S 138.00 1.00 0.44 120.39 17.61 441.1 279 -39.8 39.8
MRWA e P 104.00 0.50 0.53 107.71 -3.71 708.2 251 -40.9 40.9
MRWA e S 171.00 1.00 0.42 178.29 -7.29 708.2 251 -39.8 39.8
WARB i+P 69.10 0.10 1.11 69.12 -0.02 395.1 71 -40.9 40.9
WARB e S 115.00 1.00 0.44 110.40 4.60 395.1 71 -39.8 39.8
NO VELOCITY RATIOS
Start
Date 1990-01-26
Origin Time 0229 42.23 +- 56.28
Zone 50
Easting 574.64 +- 406.43 Longitude 117.809
Northing 6233.58 +- 393.14 Latitude -34.036
Depth 3.11 +- 896.63
Nearest recorder = 94.3 km Gap = 254.3 deg Accuracy = B
Effects Code = Imax = 0 Fault =
26 km SW (245 deg) of GNOT
WESTERN AUSTRALIA
295 km SE (142 deg) of PERTH
107 km N (357 deg) of ALBANY
21 km SW (236 deg) of Gnowangerup
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.4
PHASE INFORMATION
DATA USED
BAL w P 102.00 5.00 0.36 96.92 5.08 394.0 344 -40.9 40.9
BAL e S 133.00 2.00 0.38 138.22 -5.22 394.0 344 -39.8 39.8
BAL e SG 147.00 0.50 0.51 153.53 -6.53 394.0 344 0.5 0.5
MUN e P 82.00 0.30 0.65 81.96 0.04 272.7 326 -40.9 40.9
MUN e S 113.00 0.50 0.53 111.90 1.10 272.7 326 -39.8 39.8
NWAO S-P 15.60 0.50 0.89 16.17 -0.57 134.1 336 0.0 0.0
NWAO e P 63.80 0.50 0.62 63.91 -0.11 134.1 336 -31.2 31.2
NWAO i S 79.40 0.10 1.11 80.08 -0.68 134.1 336 -29.6 29.6
RKG e P 57.70 0.30 0.71 57.63 0.07 94.3 230 2.1 2.1
RKG e S 68.30 0.50 0.58 68.90 -0.60 94.3 230 2.1 2.1
Velocity Ratios
RKG NWAO
RKG 1.69 0.00
0.07 0.00
NWAO 0.00 1.72
0.00 0.05
Start
Date 1990-02-01
Origin Time 0711 55.11 +- 0.98
Zone 50
Easting 504.29 +- 5.92 Longitude 117.045
Northing 6498.38 +- 7.78 Latitude -31.650
Depth 5.00 +- 18.24 N
Nearest recorder = 68.1 km Gap = 100.4 deg Accuracy = B
Effects Code = Imax = 0 Fault =
27 km E (103 deg) of YORK
WESTERN AUSTRALIA
118 km E ( 74 deg) of PERTH
4 km SE (123 deg) of Meckering
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
BAL i+P 74.60 0.10 1.24 74.66 -0.06 120.0 344 -31.2 31.2
BAL e S 88.30 0.20 0.68 89.04 -0.74 120.0 344 2.5 2.5
KLB i-P 66.30 0.10 1.30 66.25 0.05 68.1 84 4.5 4.5
KLB e S 74.10 0.20 0.71 74.40 -0.30 68.1 84 4.5 4.5
MUN i-P 69.40 0.10 1.28 69.36 0.04 87.2 244 3.4 3.4
MUN e S 79.40 0.10 0.80 79.78 -0.38 87.2 244 3.4 3.4
NWAO e P 78.00 0.50 0.62 77.82 0.18 142.6 172 -31.2 31.2
NWAO e S 93.60 0.30 0.62 94.79 -1.19 142.6 172 -29.6 29.6
Velocity Ratios
KLB MUN BAL NWAO
KLB 1.70 0.00 1.71 1.67
0.03 0.00 0.09 0.14
MUN 0.00 1.70 1.71 1.65
0.00 0.02 0.13 0.17
BAL 1.71 1.71 1.70 0.00
0.09 0.13 0.02 0.00
NWAO 1.67 1.65 0.00 1.68
0.14 0.17 0.00 0.05
Start
Date 1990-02-01
Origin Time 0711 55.19 +- 0.31
Zone 50
Easting 504.21 +- 1.78 Longitude 117.044
Northing 6498.76 +- 2.34 Latitude -31.646
Depth 3.01 +- 10.28
Nearest recorder = 33.4 km Gap = 100.7 deg Accuracy = A
Effects Code = Imax = 0 Fault =
27 km E (102 deg) of YORK
WESTERN AUSTRALIA
118 km E ( 74 deg) of PERTH
4 km SE (119 deg) of Meckering
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.3
PHASE INFORMATION
DATA USED
BAL i+P 74.60 0.10 1.24 74.71 -0.11 119.6 344 1.6 1.6
BAL i S 88.30 0.10 1.12 88.25 0.05 119.6 344 1.6 1.6
COOL SN 150.00 1.00 0.42 150.56 -0.56 399.7 78 -40.3 40.3
COOL SG 166.00 1.00 0.63 165.60 0.40 399.7 78 0.5 0.5
GOO S-P 3.80 0.10 1.38 3.80 0.00 33.4 326 0.0 0.0
GOO S 65.00 0.50 0.90 64.46 0.54 33.4 326 5.7 5.7
KLB i-P 66.30 0.10 1.30 66.32 -0.02 68.1 85 2.8 2.8
KLB i S 74.10 0.10 1.17 74.03 0.07 68.1 85 2.8 2.8
MRWA e P 96.40 0.20 0.70 96.27 0.13 287.3 339 -42.2 42.2
MRWA w S 128.00 1.00 0.46 126.87 1.13 287.3 339 -40.3 40.3
MRWA SG 132.00 1.00 0.65 134.56 -2.56 287.3 339 0.7 0.7
MUN i-P 69.40 0.10 1.27 69.44 -0.04 87.3 244 2.1 2.1
MUN i S 79.40 0.10 1.15 79.32 0.08 87.3 244 2.1 2.1
NWAO e P 78.00 0.50 0.62 78.17 -0.17 143.0 172 -30.8 30.8
NWAO e S 93.60 0.30 0.62 94.71 -1.11 143.0 172 1.3 1.3
Velocity Ratios
KLB MUN BAL
KLB 1.70 1.71 1.71
0.02 0.19 0.07
MUN 1.71 1.70 1.71
0.19 0.02 0.11
BAL 1.71 1.71 1.71
0.07 0.11 0.01
Start
Date 1990-02-01
Origin Time 2258 16.27 +- 0.66
Zone 50
Easting 575.22 +- 3.57 Longitude 117.809
Northing 6298.63 +- 5.07 Latitude -33.449
Depth 0.36 +- 9.86
Nearest recorder = 75.2 km Gap = 114.4 deg Accuracy = A
Effects Code = Imax = 0 Fault =
56 km NW (323 deg) of GNOC
WESTERN AUSTRALIA
248 km SE (133 deg) of PERTH
172 km N (358 deg) of ALBANY
16 km SE (153 deg) of Dumbleyung
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.9
PHASE INFORMATION
DATA USED
BAL PG 70.00 1.00 0.57 70.40 -0.40 331.8 341 0.1 0.1
BAL e S 97.00 0.50 0.52 99.26 -2.26 331.8 341 -39.8 39.8
COOL w P 76.00 2.00 0.43 75.01 0.99 424.3 48 -40.9 40.9
COOL e PG 83.50 0.20 0.67 85.49 -1.99 424.3 48 0.1 0.1
COOL e S 116.00 1.00 0.44 119.36 -3.36 424.3 48 -39.8 39.8
COOL e SG 131.80 0.30 0.56 136.13 -4.33 424.3 48 0.1 0.1
KLB e P 48.00 0.50 0.60 48.06 -0.06 205.9 358 -40.9 40.9
KLB e S 71.50 0.50 0.54 71.96 -0.46 205.9 358 -39.8 39.8
MRWA S 135.00 1.00 0.62 135.67 -0.67 499.6 339 -39.8 39.8
MUN i-P 49.80 0.20 1.02 49.98 -0.18 221.6 317 -40.9 40.9
MUN e S 74.70 0.20 0.64 75.34 -0.64 221.6 317 -39.8 39.8
NWAO S-P 9.10 0.10 1.29 9.43 -0.33 79.0 317 0.0 0.0
NWAO i-P 29.10 0.10 1.29 29.15 -0.05 79.0 317 0.5 0.5
NWAO i S 38.20 0.10 1.16 38.58 -0.38 79.0 317 0.5 0.5
PIN S-P 8.30 0.30 1.04 8.97 -0.67 75.2 95 0.0 0.0
PIN e P 28.70 0.30 0.73 28.53 0.17 75.2 95 0.5 0.5
PIN S 37.00 0.50 0.84 37.50 -0.50 75.2 95 0.5 0.5
RKG e P 39.80 0.20 0.74 39.63 0.17 144.5 210 -31.2 31.2
RKG e S 56.30 0.20 0.67 57.07 -0.77 144.5 210 -29.6 29.6
Velocity Ratios
PIN NWAO RKG KLB MUN
PIN 1.67 0.00 1.74 1.79 1.79
0.08 0.00 0.15 0.13 0.08
NWAO 0.00 1.71 1.69 1.76 1.76
0.00 0.02 0.08 0.09 0.04
RKG 1.74 1.69 1.70 0.00 1.84
0.15 0.08 0.02 0.00 0.12
KLB 1.79 1.76 0.00 1.74 0.00
0.13 0.09 0.00 0.04 0.00
MUN 1.79 1.76 1.84 0.00 1.74
0.08 0.04 0.12 0.00 0.02
Start
Date 1990-02-03
Origin Time 1300 58.79 +- 3.53
Zone 51
Easting 343.94 +- 13.40 Longitude 121.535
Northing 8135.38 +- 22.64 Latitude -16.860
Depth 5.00 +- 45.18 N
Nearest recorder = 508.8 km Gap = 217.9 deg Accuracy = B
Effects Code = Imax = 0 Fault =
508 km N ( 20 deg) of MBL
WESTERN AUSTRALIA
143 km NW (329 deg) of BROOME
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.4
PHASE INFORMATION
DATA USED
COOL e P 252.00 1.00 0.44 252.80 -0.80 1553.7 181 -42.2 42.2
KNA e P 159.40 0.20 0.63 159.59 -0.19 783.2 81 -42.2 42.2
KNA e S 233.00 1.00 0.41 234.48 -1.48 783.2 81 -40.3 40.3
MBL i-P 126.40 0.10 1.08 126.42 -0.02 508.8 200 -42.2 42.2
MBL e S 175.30 0.30 0.55 176.72 -1.42 508.8 200 -40.3 40.3
MEKA e P 201.90 0.20 0.61 200.93 0.97 1124.7 195 -42.2 42.2
MEKA e S 306.00 0.30 0.51 306.44 -0.44 1124.7 195 -40.3 40.3
NANU e P 173.90 0.20 0.62 173.05 0.85 894.5 224 -42.2 42.2
NANU e S 257.00 0.30 0.52 257.91 -0.91 894.5 224 -40.3 40.3
WARB e P 206.00 0.30 0.56 205.16 0.84 1159.8 153 -42.2 42.2
WARB e S 315.00 0.50 0.46 313.82 1.18 1159.8 153 -40.3 40.3
Velocity Ratios
MBL KNA NANU MEKA WARB
MBL 1.72 1.75 1.72 1.73 1.76
0.01 0.06 0.02 0.01 0.02
KNA 1.75 1.73 1.66 1.72 1.76
0.06 0.01 0.14 0.05 0.05
NANU 1.72 1.66 1.72 1.75 1.81
0.02 0.14 0.01 0.05 0.05
MEKA 1.73 1.72 1.75 1.73 0.00
0.01 0.05 0.05 0.00 0.00
WARB 1.76 1.76 1.81 0.00 1.74
0.02 0.05 0.05 0.00 0.01
Start
Date 1990-02-06
Origin Time 2027 37.77 +- 0.00
Zone 52
Easting 709.70 +- 0.00 Longitude 131.079
Northing 7222.29 +- 0.00 Latitude -25.101
Depth 5.00 +- 0.00 N
Nearest recorder = 326.8 km Gap = 192.2 deg Accuracy = C
Effects Code = Imax = 0 Fault =
326 km SW (240 deg) of ASPA
NORTHERN TERRITORY
28 km N ( 10 deg) of AYERS ROCK
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
ASPA e P 84.10 0.10 0.79 83.44 0.66 326.8 61 -42.2 42.2
ASPA e SG 127.50 0.50 0.44 128.05 -0.55 326.8 61 1.0 1.0
WARB e P 97.20 0.20 0.67 99.68 -2.48 461.3 253 -42.2 42.2
WARB e S 149.00 0.50 0.50 145.74 3.26 461.3 253 -40.3 40.3
WB5 e P 124.80 0.10 0.74 125.02 -0.22 670.9 30 -42.2 42.2
Velocity Ratios
WARB
WARB 1.87
0.01
Start
Date 1990-02-08
Origin Time 0725 45.03 +- 0.00
Zone 52
Easting 533.87 +- 0.00 Longitude 129.317
Northing 8212.04 +- 0.00 Latitude -16.172
Depth 5.00 +- 0.00 N
Nearest recorder = 75.1 km Gap = 180.1 deg Accuracy = D
Effects Code = Imax = 0 Fault =
75 km SE (128 deg) of KNA
NORTHERN TERRITORY
443 km S (201 deg) of DARWIN
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
KNA e P 56.20 0.20 0.79 57.31 -1.11 75.1 308 3.9 3.9
KNA e S 67.40 0.30 0.65 66.29 1.11 75.1 308 3.9 3.9
WB5 e P 132.00 0.50 0.53 134.15 -2.15 674.9 128 -40.9 40.9
WB5 e S 202.50 0.10 0.66 201.61 0.89 674.9 128 -39.8 39.8
Velocity Ratios
KNA WB5
KNA 2.00 1.78
0.06 0.02
WB5 1.78 1.81
0.02 0.01
Start
Date 1990-02-08
Origin Time 0823 32.06 +- 9.16
Zone 53
Easting 749.80 +- 20.79 Longitude 137.537
Northing 6915.78 +- 15.04 Latitude -27.859
Depth 5.00 +- 76.14 G
Nearest recorder = 325.3 km Gap = 97.4 deg Accuracy = C
Effects Code = Imax = 0 Fault =
320 km NW (326 deg) of ARK
SOUTH AUSTRALIA
790 km N (352 deg) of ADELAIDE
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
CNB 1388 5.0
MUN 2095 4.5
Mean 5.0 4.5 Assign ML 5.0
PHASE INFORMATION
DATA USED
ADT e P 138.70 0.10 0.73 139.08 -0.38 796.2 172 -41.0 47.3
ADT e SN 217.30 0.10 0.44 217.43 -0.13 796.9 172 -39.4 43.6
ADT e SG 256.20 1.00 0.41 256.25 -0.05 796.9 172 0.2 20.2
ASPA e P 114.00 0.10 0.75 112.02 1.98 588.9 321 -42.1 48.0
ASPA e S 171.00 1.00 0.42 172.61 -1.61 588.9 321 -39.2 43.4
CNB e P 212.50 0.50 0.51 213.88 -1.38 1391.9 129 -42.9 48.7
CTA e P 195.00 0.10 0.70 194.62 0.38 1234.3 47 -41.9 48.3
CTA e S 318.80 1.00 0.40 320.42 -1.62 1234.3 47 -38.3 43.1
HWK i+P 79.30 0.10 1.13 79.66 -0.36 325.3 223 -42.4 48.2
STK e P 114.90 0.10 0.75 112.67 2.23 594.5 139 -42.1 48.0
STK e S 172.10 0.50 0.49 173.79 -1.69 594.5 139 -39.2 43.4
WB2 e P 156.00 0.10 0.71 157.24 -1.24 933.7 339 -41.1 46.9
WRG e P 85.00 0.30 0.63 84.81 0.19 367.5 191 -42.4 48.2
Velocity Ratios
ASPA STK CTA
ASPA 1.70 0.00 1.82
0.01 0.00 0.03
STK 0.00 1.69 1.83
0.00 0.01 0.02
CTA 1.82 1.83 1.76
0.03 0.02 0.01
Start
Date 1990-02-08
Origin Time 0823 2.87 +- 69.77
Zone 53
Easting 532.72 +- 98.24 Longitude 135.342
Northing 6585.89 +- 488.00 Latitude -30.860
Depth 5.00 +- 831.36 N
Nearest recorder = 100.8 km Gap = 155.9 deg Accuracy = D
Effects Code = Imax = 0 Fault =
100 km S (172 deg) of HWK
SOUTH AUSTRALIA
545 km NW (325 deg) of ADELAIDE
146 km W (285 deg) of WOOMERA
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 4.5
PHASE INFORMATION
DATA USED
ASPA e P 54.00 0.10 0.72 108.39 -54.39 807.6 349 -40.9 40.9
ASPA S 111.00 1.00 0.47 188.29 -77.29 807.6 349 -39.8 39.8
BAL e P 231.00 0.10 0.70 231.28 -0.28 1804.5 266 -40.9 40.9
COOL S-P 82.00 0.10 1.00 132.16 -50.16 1365.9 266 0.0 0.0
COOL e P 179.00 0.10 0.70 177.21 1.79 1365.9 266 -40.9 40.9
COOL e S 321.00 0.10 0.63 309.37 11.63 1365.9 266 -39.8 39.8
HWK i P 19.30 0.10 1.26 19.34 -0.04 100.8 352 2.9 2.9
KLB e P 217.00 0.10 0.70 217.52 -0.52 1692.9 262 -40.9 40.9
MUN e P 231.00 0.10 0.70 236.13 -5.13 1843.9 261 -40.9 40.9
MUN w S 440.00 5.00 0.29 413.01 26.99 1843.9 261 -39.8 39.8
NWAO e P 223.00 0.10 0.70 223.93 -0.93 1744.9 257 -40.9 40.9
STK e P 54.90 0.10 0.75 83.48 -28.58 605.9 102 -40.9 40.9
STK S 112.10 0.10 0.96 144.47 -32.37 605.9 102 -39.8 39.8
WRG i P 25.00 0.10 1.23 24.98 0.02 138.4 101 -31.2 31.2
NO VELOCITY RATIOS
Start
Date 1990-02-12
Origin Time 2211 16.92 +- 0.00
Zone 50
Easting 245.76 +- 0.00 Longitude 114.527
Northing 7497.33 +- 0.00 Latitude -22.612
Depth 5.00 +- 0.00 N
Nearest recorder = 571.4 km Gap = 324.2 deg Accuracy = D
Effects Code = Imax = 0 Fault =
59 km N (357 deg) of LP03
WESTERN AUSTRALIA
87 km SE (152 deg) of Exmouth
61 km SE (131 deg) of Learmonth
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.3
PHASE INFORMATION
DATA USED
MBL e P 93.00 0.10 0.75 92.12 0.88 571.4 74 -42.2 42.2
MBL e S 147.40 0.10 0.68 148.03 -0.63 571.4 74 -40.3 40.3
NANU P 90.00 0.10 1.19 33.31 56.69 100.4 85 2.9 2.9
WARB e P 178.50 0.10 0.70 179.52 -1.02 1293.9 110 -42.2 42.2
WARB e S 302.00 1.00 0.40 300.19 1.81 1293.9 110 -40.3 40.3
Velocity Ratios
MBL WARB
MBL 1.71 1.81
0.00 0.02
WARB 1.81 1.76
0.02 0.01
Start
Date 1990-02-14
Origin Time 0203 6.02 +- 24.88
Zone 50
Easting 765.66 +- 76.28 Longitude 119.819
Northing 6432.16 +- 268.55 Latitude -32.216
Depth 5.00 +- 200.59 N
Nearest recorder = 194.3 km Gap = 232.8 deg Accuracy = D
Effects Code = Imax = 0 Fault =
164 km E ( 72 deg) of KULI
WESTERN AUSTRALIA
376 km E ( 96 deg) of PERTH
185 km W (269 deg) of NORSEMAN
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.9
PHASE INFORMATION
DATA USED
BAL w P 56.50 0.50 0.58 54.52 1.98 345.5 300 -40.9 40.9
BAL SG 95.00 1.00 0.65 103.62 -8.62 345.5 300 0.9 0.9
COOL e P 35.90 0.20 0.72 35.90 -0.00 194.3 40 -40.9 40.9
COOL e S 57.00 1.00 0.47 58.38 -1.38 194.3 40 -39.8 39.8
KLB e P 36.90 0.10 0.83 37.40 -0.50 206.7 289 -40.9 40.9
KLB e S 60.20 0.20 0.65 61.02 -0.82 206.7 289 -39.8 39.8
MUN P 60.70 0.30 0.91 54.05 6.65 341.7 273 -40.9 40.9
MUN e S 89.00 1.00 0.45 90.32 -1.32 341.7 273 -39.8 39.8
Velocity Ratios
COOL KLB
COOL 1.71 0.00
0.05 0.00
KLB 0.00 1.75
0.00 0.01
Start
Date 1990-02-18
Origin Time 2247 33.70 +- 11.08
Zone 50
Easting 630.50 +- 30.26 Longitude 118.234
Northing 7981.50 +- 36.30 Latitude -18.252
Depth 5.00 +- 118.59 N
Nearest recorder = 363.0 km Gap = 218.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
268 km N (348 deg) of RP02
WESTERN AUSTRALIA
309 km NE ( 31 deg) of Dampier
230 km N (351 deg) of PORT HEDLAND
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 4.5
PHASE INFORMATION
DATA USED
ASPA i-P 249.20 0.10 1.00 252.40 -3.20 1757.8 113 -42.2 42.2
ASPA i S 413.90 0.20 0.78 414.65 -0.75 1757.8 113 -40.3 40.3
BAL e P 206.40 0.20 0.61 206.29 0.11 1376.7 186 -42.2 42.2
BAL e S 330.00 0.20 0.55 334.38 -4.38 1376.7 186 -40.3 40.3
COOL i+P 211.70 0.10 1.00 212.81 -1.11 1430.5 168 -42.2 42.2
COOL e S 340.50 0.30 0.51 345.73 -5.23 1430.5 168 -40.3 40.3
FORR e P 247.00 1.00 0.44 247.40 -0.40 1716.5 146 -42.2 42.2
FORR e S 400.00 1.00 0.40 405.94 -5.94 1716.5 146 -40.3 40.3
KLB e P 218.00 0.20 0.61 218.55 -0.55 1478.1 181 -42.2 42.2
KLB w S 345.00 5.00 0.29 355.72 -10.72 1478.1 181 -40.3 40.3
KNA e P 179.50 0.20 0.61 180.43 -0.93 1163.0 77 -42.2 42.2
KNA e S 291.50 0.50 0.46 289.35 2.15 1163.0 77 -40.3 40.3
MBL i+P 84.10 0.10 1.12 83.71 0.39 363.0 152 -42.2 42.2
MEKA i-P 152.40 0.10 1.02 151.87 0.53 926.5 178 -42.2 42.2
MEKA SG 285.00 1.00 0.46 289.64 -4.64 926.5 178 0.3 0.3
MRWA e P 189.30 0.20 0.61 189.19 0.11 1235.3 190 -42.2 42.2
MRWA e S 301.00 1.00 0.40 304.60 -3.60 1235.3 190 -40.3 40.3
MTN e P 222.00 1.00 0.44 223.82 -1.82 1521.9 68 -42.2 42.2
MUN e P 224.60 0.20 0.61 225.26 -0.66 1533.6 187 -42.2 42.2
MUN e S 364.50 0.50 0.46 367.40 -2.90 1533.6 187 -40.3 40.3
NANU P 107.00 1.00 0.68 106.81 0.19 554.2 210 -42.2 42.2
NWAO e P 235.00 0.30 0.56 236.71 -1.71 1628.3 183 -42.2 42.2
NWAO e S 384.60 0.50 0.46 387.34 -2.74 1628.3 183 -40.3 40.3
QIS e P 310.00 1.00 0.44 315.07 -5.07 2273.4 100 -52.2 51.7
QIS e S 525.00 1.00 0.40 534.29 -9.29 2273.4 100 -46.2 48.0
RKG e P 258.10 0.10 0.70 258.86 -0.76 1811.5 183 -42.2 42.2
RKG e S 423.00 1.00 0.40 425.90 -2.90 1811.5 183 -40.3 40.3
WARB e P 191.00 0.20 0.61 189.57 1.43 1238.3 137 -42.2 42.2
WARB e S 303.00 1.00 0.40 305.26 -2.26 1238.3 137 -40.3 40.3
Velocity Ratios
KNA WARB
KNA 1.77 1.00
0.01 0.17
WARB 1.00 1.71
0.17 0.01
Start
Date 1990-02-20
Origin Time 1419 0.99 +- 8.17
Zone 52
Easting 447.66 +- 31.94 Longitude 128.509
Northing 8171.18 +- 46.04 Latitude -16.541
Depth 5.00 +- 109.24 N
Nearest recorder = 91.7 km Gap = 138.1 deg Accuracy = C
Effects Code = Imax = 0 Fault =
91 km S (197 deg) of KNA
WESTERN AUSTRALIA
87 km S (196 deg) of Kununurra
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.1
PHASE INFORMATION
DATA USED
ASPA e P 125.20 0.10 0.71 124.60 0.60 971.3 145 -42.2 42.2
KNA i+P 15.70 0.10 1.27 15.97 -0.27 91.7 17 3.2 3.2
KNA e S 27.00 0.20 0.70 26.36 0.64 91.7 17 3.2 3.2
MBL e P 134.00 1.00 0.44 134.18 -0.18 1051.0 239 -42.2 42.2
MBL e S 234.00 1.00 0.40 233.07 0.93 1051.0 239 -40.3 40.3
MTN e P 139.00 0.50 0.55 67.13 71.87 496.6 34 -42.2 42.2
QIS e P 159.00 0.50 0.51 159.23 -0.23 1258.0 112 -42.2 42.2
WARB e P 137.70 0.20 0.61 138.32 -0.62 1085.0 189 -42.2 42.2
WARB e S 243.00 0.50 0.46 240.27 2.73 1085.0 189 -40.3 40.3
Velocity Ratios
KNA MBL
KNA 1.77 1.75
0.03 0.03
MBL 1.75 1.75
0.03 0.02
Start
Date 1990-02-25
Origin Time 1600 10.63 +- 0.70
Zone 50
Easting 503.10 +- 4.23 Longitude 117.033
Northing 6501.02 +- 5.46 Latitude -31.626
Depth 9.54 +- 13.54
Nearest recorder = 69.1 km Gap = 102.4 deg Accuracy = A
Effects Code = Imax = 0 Fault =
26 km E ( 98 deg) of YORK
WESTERN AUSTRALIA
118 km E ( 73 deg) of PERTH
2 km E ( 78 deg) of Meckering
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.1
PHASE INFORMATION
DATA USED
BAL e P 29.50 0.10 0.87 29.44 0.06 117.2 344 -30.8 30.8
BAL e S 43.00 0.50 0.57 43.10 -0.10 117.2 344 4.8 4.8
COOL S 105.00 1.00 0.63 104.97 0.03 400.3 79 -40.3 40.3
KLB e P 22.00 0.10 0.91 22.01 -0.01 69.1 87 8.1 8.1
KLB e S 30.00 0.50 0.59 29.91 0.09 69.1 87 8.1 8.1
MRWA e S 83.00 0.50 0.52 80.61 2.39 284.8 339 -40.3 40.3
MUN i P 24.90 0.10 1.27 24.95 -0.05 87.3 243 6.4 6.4
MUN i S 35.00 0.50 0.83 34.89 0.11 87.3 243 6.4 6.4
NWAO e P 33.40 0.20 0.74 33.40 0.00 145.4 172 -30.8 30.8
NWAO e S 50.50 0.30 0.62 50.57 -0.07 145.4 172 -23.9 23.9
Velocity Ratios
KLB MUN BAL NWAO
KLB 1.70 0.00 1.73 1.80
0.06 0.00 0.18 0.12
MUN 0.00 1.71 0.00 1.82
0.00 0.05 0.00 0.16
BAL 1.73 0.00 1.72 0.00
0.18 0.00 0.04 0.00
NWAO 1.80 1.82 0.00 1.75
0.12 0.16 0.00 0.03
Start
Date 1990-02-26
Origin Time 2317 46.21 +- 0.00
Zone 50
Easting 645.37 +- 0.00 Longitude 118.390
Northing 7788.11 +- 0.00 Latitude -19.998
Depth 5.00 +- 0.00 N
Nearest recorder = 198.0 km Gap = 359.8 deg Accuracy = D
Effects Code = Imax = 0 Fault =
78 km NW (333 deg) of RP02
WESTERN AUSTRALIA
189 km NE ( 68 deg) of Dampier
39 km NW (329 deg) of PORT HEDLAND
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.2
PHASE INFORMATION
DATA USED
MBL e P 74.00 0.20 0.72 76.26 -2.26 198.0 130 -42.2 42.2
MBL e S 124.40 0.30 0.55 98.72 25.68 198.0 130 -40.3 40.3
WARB e P 189.00 0.50 0.51 184.41 4.59 1092.1 130 -42.2 42.2
WARB e S 287.00 2.00 0.35 287.00 0.00 1092.1 130 -40.3 40.3
Velocity Ratios
WARB
WARB 1.69
0.02
Start
Date 1990-03-01
Origin Time 1246 56.97 +- 0.00
Zone 52
Easting 618.03 +- 0.00 Longitude 130.180
Northing 7116.33 +- 0.00 Latitude -26.067
Depth -2.57 +- 0.00
Nearest recorder = 353.9 km Gap = 211.6 deg Accuracy = C
Effects Code = Imax = 0 Fault =
353 km E ( 88 deg) of WARB
SOUTH AUSTRALIA
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
ASPA i+P 119.70 0.10 1.10 119.56 0.14 459.8 55 -42.2 42.2
ASPA e S 165.70 0.30 0.55 166.02 -0.32 459.8 55 -40.3 40.3
WARB e P 106.30 0.30 0.63 106.73 -0.43 353.9 267 -42.2 42.2
WARB e S 144.00 0.30 0.57 143.70 0.30 353.9 267 -40.3 40.3
Velocity Ratios
WARB ASPA
WARB 1.76 1.62
0.02 0.10
ASPA 1.62 1.73
0.10 0.01
Start
Date 1990-03-05
Origin Time 1258 25.53 +- 1.44
Zone 52
Easting 377.68 +- 7.25 Longitude 127.775
Northing 7094.67 +- 13.74 Latitude -26.262
Depth 3.27 +- 23.38
Nearest recorder = 113.5 km Gap = 110.4 deg Accuracy = B
Effects Code = Imax = 0 Fault =
113 km E ( 94 deg) of WARB
WESTERN AUSTRALIA
120 km E ( 97 deg) of WARBURTON
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.9
PHASE INFORMATION
DATA USED
ASPA e P 113.40 0.30 0.59 114.27 -0.87 681.5 66 -42.2 42.2
ASPA SG 213.70 0.10 0.95 213.78 -0.08 681.5 66 0.3 0.3
BAL e S 285.70 0.30 0.51 287.78 -2.08 1192.7 243 -40.3 40.3
COOL e P 131.50 0.20 0.63 131.99 -0.49 828.1 230 -42.2 42.2
COOL e S 211.00 0.50 0.47 211.05 -0.05 828.1 230 -40.3 40.3
FORR e P 92.50 0.30 0.61 92.75 -0.25 503.5 176 -42.2 42.2
FORR e S 144.50 0.50 0.50 142.72 1.78 503.5 176 -40.3 40.3
FORR SG 165.00 2.00 0.54 164.62 0.38 503.5 176 0.4 0.4
HWK e P 135.20 0.50 0.45 133.09 2.11 837.4 121 -42.2 42.2
HWK S 213.90 0.50 0.57 212.95 0.95 837.4 121 -40.3 40.3
KLB e P 170.00 1.00 0.44 170.42 -0.42 1146.1 236 -42.2 42.2
KLB e S 275.00 1.00 0.40 277.95 -2.95 1146.1 236 -40.3 40.3
MBL e P 151.30 0.20 0.62 151.66 -0.36 991.0 303 -42.2 42.2
MBL e S 247.00 1.00 0.40 245.28 1.72 991.0 303 -40.3 40.3
MRWA e P 180.00 0.50 0.51 178.68 1.32 1214.4 251 -42.2 42.2
MRWA e S 290.80 0.30 0.51 292.33 -1.53 1214.4 251 -40.3 40.3
MUN e P 191.30 0.20 0.61 188.88 2.42 1298.7 237 -42.2 42.2
MUN e S 307.00 0.30 0.51 310.09 -3.09 1298.7 237 -40.3 40.3
PNA w P 176.80 0.50 0.62 176.49 0.31 1196.4 124 -42.2 42.2
PNA S 291.20 0.50 0.56 288.53 2.67 1196.4 124 -40.3 40.3
WARB i P 44.00 0.50 0.90 44.05 -0.05 113.5 274 1.9 1.9
WB5 e P 152.00 0.50 0.51 150.12 1.88 978.1 44 -42.2 42.2
WB5 e S 246.00 1.00 0.40 242.61 3.39 978.1 44 -40.3 40.3
Velocity Ratios
COOL
COOL 1.75
0.01
Start
Date 1990-03-05
Origin Time 1520 45.93 +- 13.22
Zone 50
Easting 327.40 +- 37.69 Longitude 115.122
Northing 6190.80 +- 33.97 Latitude -34.410
Depth 5.00 +- 47.78 N
Nearest recorder = 174.3 km Gap = 284.4 deg Accuracy = C
Effects Code = Imax = 0 Fault =
174 km W (275 deg) of RKG
WESTERN AUSTRALIA
281 km S (194 deg) of PERTH
51 km S (175 deg) of Margaret River
10 km S (194 deg) of AUGUSTA
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
PHASE INFORMATION
DATA USED
KLB SG 156.00 1.00 0.63 155.86 0.14 397.9 38 0.8 0.8
MUN e P 86.70 0.20 0.70 86.87 -0.17 288.0 20 -42.2 42.2
MUN e S 117.40 0.30 0.58 117.39 0.01 288.0 20 -40.3 40.3
NWAO e S 114.30 0.30 0.59 110.58 3.72 255.6 50 -40.3 40.3
PIN e SG 139.00 1.00 0.45 139.18 -0.18 337.5 73 0.9 0.9
RKG e P 73.30 0.10 0.84 73.13 0.17 174.3 96 -42.2 42.2
RKG i S 93.40 0.20 0.94 93.47 -0.07 174.3 96 -40.3 40.3
Velocity Ratios
RKG MUN
RKG 1.73 1.79
0.01 0.08
MUN 1.79 1.75
0.08 0.02
Start
Date 1990-03-10
Origin Time 1119 14.27 +- 0.00
Zone 52
Easting 511.20 +- 0.00 Longitude 129.101
Northing 9537.95 +- 0.00 Latitude -4.180
Depth 5.00 +- 0.00 N
Nearest recorder = 1830.2 km Gap = 355.2 deg Accuracy = C
Effects Code = Imax = 0 Fault =
116 km SE (117 deg) of AAI
934 km N (348 deg) of DARWIN
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
ASPA e P 290.40 0.30 0.56 289.11 1.29 2218.3 167 -46.0 46.9
ASPA S 498.70 0.50 0.65 499.20 -0.50 2218.3 167 -42.0 41.9
KNA e P 221.30 0.20 0.61 175.12 46.18 1279.8 181 -42.2 42.2
KNA e S 253.00 1.00 0.40 294.50 -41.50 1279.8 181 -40.3 40.3
WB5 e P 240.50 0.20 0.61 241.70 -1.20 1830.2 162 -42.2 42.2
WB5 e S 412.00 1.00 0.40 410.42 1.58 1830.2 162 -40.3 40.3
Velocity Ratios
WB5 ASPA
WB5 1.76 1.74
0.01 0.05
ASPA 1.74 1.75
0.05 0.00
Start
Date 1990-03-12
Origin Time 0729 51.55 +- 0.00
Zone 51
Easting 647.75 +- 0.00 Longitude 124.419
Northing 7708.20 +- 0.00 Latitude -20.720
Depth 5.00 +- 0.00 N
Nearest recorder = 646.7 km Gap = 286.6 deg Accuracy = C
Effects Code = Imax = 0 Fault =
479 km E ( 84 deg) of MBL
WESTERN AUSTRALIA
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
ASPA e P 187.10 0.30 0.57 183.05 4.05 1036.7 110 -42.2 42.2
ASPA e S 279.50 0.50 0.46 280.68 -1.18 1036.7 110 -40.3 40.3
WARB e P 135.00 0.20 0.65 135.88 -0.88 646.7 159 -42.2 42.2
WARB e S 181.30 0.30 0.53 198.55 -17.25 646.7 159 -40.3 40.3
WB5 e P 182.50 0.30 0.57 184.62 -2.12 1049.9 86 -42.2 42.2
WB5 e S 272.40 0.50 0.46 283.42 -11.02 1049.9 86 -40.3 40.3
Velocity Ratios
ASPA
ASPA 1.68
0.01
Start
Date 1990-03-17
Origin Time 0548 41.45 +- 0.54
Zone 50
Easting 576.37 +- 4.09 Longitude 117.821
Northing 6302.61 +- 3.66 Latitude -33.413
Depth 5.00 +- 11.19 N
Nearest recorder = 74.6 km Gap = 110.8 deg Accuracy = A
Effects Code = Imax = 0 Fault =
59 km NW (326 deg) of GNOC
WESTERN AUSTRALIA
246 km SE (132 deg) of PERTH
176 km N (359 deg) of ALBANY
13 km SE (141 deg) of Dumbleyung
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.2
PHASE INFORMATION
DATA USED
BAL e P 87.00 0.10 0.79 87.28 -0.28 328.4 341 -42.2 42.2
BAL PG 94.00 0.50 0.82 95.03 -1.03 328.4 341 0.9 0.9
BAL e S 121.50 0.50 0.52 121.43 0.07 328.4 341 -40.3 40.3
COOL e P 100.00 0.10 0.77 98.48 1.52 420.8 48 -42.2 42.2
COOL PG 108.00 1.00 0.70 110.11 -2.11 420.8 48 0.7 0.7
COOL SG 155.00 1.00 0.63 157.72 -2.72 420.8 48 0.7 0.7
KLB e P 72.40 0.10 0.83 72.00 0.40 202.0 358 -42.2 42.2
KLB SG 96.00 1.00 0.67 97.27 -1.27 202.0 358 1.5 1.5
MEKA e P 142.00 0.30 0.59 139.08 2.92 756.5 5 -42.2 42.2
MEKA S 214.00 0.50 0.68 211.60 2.40 756.5 5 -40.3 40.3
MEKA SG 254.00 0.50 0.68 250.44 3.56 756.5 5 0.4 0.4
MRWA e P 111.00 0.50 0.55 107.59 3.41 496.3 339 -42.2 42.2
MRWA e S 160.50 0.50 0.50 156.78 3.72 496.3 339 -40.3 40.3
MRWA SG 178.00 1.00 0.62 178.56 -0.56 496.3 339 0.6 0.6
MUN i+P 74.00 0.10 1.18 74.10 -0.10 219.4 316 -42.2 42.2
MUN e SG 99.70 0.30 0.59 102.09 -2.39 219.4 316 1.4 1.4
NWAO i-P 54.00 0.10 1.29 54.03 -0.03 76.9 314 3.9 3.9
PIN S-P 8.50 0.10 1.29 8.46 0.04 74.6 99 0.0 0.0
PIN P 53.60 0.50 0.94 53.65 -0.05 74.6 99 4.1 4.1
PIN S 62.00 0.50 0.84 62.11 -0.11 74.6 99 4.1 4.1
RKG i PG 66.00 0.10 1.22 65.70 0.30 148.5 209 2.0 2.0
RKG i S 82.30 0.10 1.10 82.51 -0.21 148.5 209 2.0 2.0
Velocity Ratios
PIN BAL
PIN 1.69 1.78
0.12 0.06
BAL 1.78 1.76
0.06 0.01
Start
Date 1990-03-20
Origin Time 2109 21.83 +- 6.35
Zone 51
Easting 631.27 +- 31.87 Longitude 124.243
Northing 7958.71 +- 41.26 Latitude -18.458
Depth 5.00 +- 57.87 N
Nearest recorder = 550.3 km Gap = 182.4 deg Accuracy = D
Effects Code = Imax = 0 Fault =
550 km NE ( 57 deg) of MBL
WESTERN AUSTRALIA
142 km SE (153 deg) of Derby
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.4
PHASE INFORMATION
DATA USED
ASPA e P 167.60 0.30 0.56 168.75 -1.15 1164.1 121 -42.2 42.2
ASPA e S 289.20 1.00 0.40 277.80 11.40 1164.1 121 -40.3 40.3
FORR e P 204.00 0.50 0.51 199.90 4.10 1421.8 165 -42.2 42.2
FORR e S 343.00 5.00 0.29 332.03 10.97 1421.8 165 -40.3 40.3
KNA e P 96.80 0.20 0.65 96.61 0.19 567.9 58 -42.2 42.2
KNA e S 151.50 0.30 0.54 152.20 -0.70 567.9 58 -40.3 40.3
KNA e SG 176.00 1.00 0.43 178.72 -2.72 567.9 58 0.5 0.5
MBL e P 94.70 0.10 0.75 94.48 0.22 550.3 236 -42.2 42.2
MBL e S 146.00 0.50 0.49 148.51 -2.51 550.3 236 -40.3 40.3
MBL e SG 173.00 1.00 0.43 173.86 -0.86 550.3 236 0.5 0.5
MRWA S 340.00 1.00 0.57 339.78 0.22 1458.8 213 -40.3 40.3
WARB P 141.00 0.50 0.74 135.69 5.31 890.9 164 -42.2 42.2
WARB e S 229.00 1.00 0.41 220.24 8.76 890.9 164 -40.3 40.3
WARB e SG 284.00 3.00 0.33 267.93 16.07 890.9 164 0.4 0.4
WB5 e P 160.30 0.30 0.56 158.94 1.36 1083.2 100 -42.2 42.2
WB5 e S 264.60 1.00 0.40 260.72 3.88 1083.2 100 -40.3 40.3
Velocity Ratios
KNA
KNA 1.73
0.01
Start
Date 1990-03-21
Origin Time 1337 25.56 +- 1.97
Zone 52
Easting 560.15 +- 13.78 Longitude 129.598
Northing 7200.15 +- 25.66 Latitude -25.314
Depth 5.00 +- 18.19 N
Nearest recorder = 472.4 km Gap = 163.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
311 km E ( 72 deg) of WARB
NORTHERN TERRITORY
144 km W (271 deg) of AYERS ROCK
72 km SE (133 deg) of DOCKER RIVER
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
ASPA i-P 89.80 0.10 1.09 89.74 0.06 472.4 68 -40.9 40.9
ASPA i PG 101.70 0.30 0.88 102.62 -0.92 472.4 68 0.7 0.7
ASPA i S 138.60 0.50 0.71 138.26 0.34 472.4 68 -39.8 39.8
BAL e P 203.30 0.20 0.61 204.49 -1.19 1403.3 242 -40.9 40.9
BAL e S 336.00 0.20 0.55 340.13 -4.13 1403.3 242 -39.8 39.8
COOL e P 160.00 0.30 0.57 159.23 0.77 1036.1 231 -40.9 40.9
COOL e S 260.90 0.20 0.55 260.51 0.39 1036.1 231 -39.8 39.8
KLB e P 198.00 1.00 0.44 198.70 -0.70 1356.3 236 -40.9 40.9
KLB e S 327.20 0.50 0.46 329.95 -2.75 1356.3 236 -39.8 39.8
MUN e P 212.00 0.20 0.61 217.56 -5.56 1509.3 237 -40.9 40.9
MUN e S 359.00 0.30 0.51 363.12 -4.12 1509.3 237 -39.8 39.8
NANU e P 213.40 0.20 0.61 213.62 -0.22 1477.5 279 -40.9 40.9
NANU e S 350.00 0.20 0.55 356.20 -6.20 1477.5 279 -39.8 39.8
NWAO e P 213.00 0.30 0.56 213.23 -0.23 1474.2 231 -40.9 40.9
NWAO e S 356.00 0.50 0.46 355.52 0.48 1474.2 231 -39.8 39.8
WARB e P 76.00 0.50 0.58 69.90 6.10 311.6 251 -40.9 40.9
WARB e S 115.50 1.00 0.45 103.36 12.14 311.6 251 -39.8 39.8
WB5 e P 127.70 0.30 0.58 127.29 0.41 777.1 39 -40.9 40.9
WB5 e S 203.90 1.00 0.41 204.32 -0.42 777.1 39 -39.8 39.8
Velocity Ratios
ASPA WB5 COOL
ASPA 1.76 1.72 1.74
0.01 0.06 0.02
WB5 1.72 1.75 1.76
0.06 0.01 0.07
COOL 1.74 1.76 1.75
0.02 0.07 0.01
Start
Date 1990-03-23
Origin Time 2017 31.31 +- 10.16
Zone 50
Easting 511.19 +- 82.53 Longitude 117.117
Northing 6597.86 +- 101.61 Latitude -30.752
Depth 5.00 +- 145.91 N
Nearest recorder = 42.5 km Gap = 214.6 deg Accuracy = C
Effects Code = Imax = 0 Fault =
2 km NW (315 deg) of CADX
WESTERN AUSTRALIA
179 km NE ( 43 deg) of PERTH
2 km NW (328 deg) of Cadoux
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.7
PHASE INFORMATION
DATA USED
BAL i-P 38.20 0.10 1.35 38.29 -0.09 42.5 292 7.1 7.1
BAL e S 43.50 0.50 0.62 43.39 0.11 42.5 292 7.1 7.1
KLB w P 49.80 2.00 0.49 49.50 0.30 111.4 146 2.7 2.7
KLB e S 62.20 0.20 0.68 62.82 -0.62 111.4 146 2.7 2.7
MRWA e P 65.00 1.00 0.52 62.05 2.95 201.5 327 -40.9 40.9
MRWA i S 86.00 1.00 0.67 85.19 0.81 201.5 327 -39.8 39.8
MUN e P 56.50 0.50 0.61 56.58 -0.08 161.1 212 -31.2 31.2
MUN e S 74.70 0.20 0.66 75.51 -0.81 161.1 212 -29.6 29.6
NWAO e S 96.50 0.30 0.59 93.82 2.68 241.3 177 -39.8 39.8
Velocity Ratios
BAL KLB MUN
BAL 1.77 0.00 1.70
0.10 0.00 0.10
KLB 0.00 1.67 0.00
0.00 0.21 0.00
MUN 1.70 0.00 1.72
0.10 0.00 0.04
Start
Date 1990-03-25
Origin Time 2004 41.20 +- 19.39
Zone 50
Easting 410.73 +- 121.34 Longitude 116.144
Northing 7745.24 +- 128.33 Latitude -20.389
Depth 14.58 +- 103.23
Nearest recorder = 247.8 km Gap = 267.8 deg Accuracy = C
Effects Code = Imax = 0 Fault =
132 km N ( 11 deg) of LP05
WESTERN AUSTRALIA
85 km NW (296 deg) of Karratha
67 km NW (296 deg) of Dampier
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.3
PHASE INFORMATION
DATA USED
MBL e P 93.90 0.10 0.78 93.83 0.07 393.4 103 -42.2 42.2
MBL e S 133.00 1.00 0.44 133.13 -0.13 393.4 103 -40.3 40.3
MBL e SG 156.00 1.00 0.44 149.95 6.05 393.4 103 2.2 2.2
NANU e P 76.00 1.00 0.51 76.21 -0.21 247.8 195 -42.2 42.2
NANU e PG 82.00 0.50 0.59 81.70 0.30 247.8 195 3.4 3.4
NANU e S 103.00 2.00 0.40 102.46 0.54 247.8 195 -40.3 40.3
NANU SG 110.00 1.00 0.66 109.78 0.22 247.8 195 3.4 3.4
Velocity Ratios
NANU MBL
NANU 1.78 0.00
0.11 0.00
MBL 0.00 1.74
0.00 0.02
Start
Date 1990-03-26
Origin Time 1400 7.39 +- 126.86
Zone 51
Easting 292.05 +- 829.27 Longitude 121.042
Northing 8072.28 +- 435.19 Latitude -17.426
Depth 16.22 +- 358.79
Nearest recorder = 432.7 km Gap = 332.2 deg Accuracy = D
Effects Code = Imax = 0 Fault =
430 km NE ( 34 deg) of RP02
WESTERN AUSTRALIA
140 km NW (295 deg) of BROOME
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.4
PHASE INFORMATION
DATA USED
MBL e P 65.00 1.00 0.49 64.59 0.41 432.7 196 -42.2 42.2
MBL e S 107.00 1.00 0.44 107.29 -0.29 432.7 196 -40.3 40.3
MBL e SG 127.00 1.00 0.44 127.00 0.00 432.7 196 2.2 2.2
NANU e P 110.00 1.00 0.46 110.57 -0.57 813.1 224 -42.2 42.2
NANU e S 187.50 1.00 0.41 187.36 0.14 813.1 224 -40.3 40.3
Velocity Ratios
MBL NANU
MBL 1.73 1.79
0.05 0.13
NANU 1.79 1.76
0.13 0.03
Start
Date 1990-03-30
Origin Time 1131 27.63 +- 8.52
Zone 49
Easting 742.55 +- 64.66 Longitude 113.385
Northing 7341.25 +- 28.13 Latitude -24.022
Depth 5.00 +- 73.45 N
Nearest recorder = 271.6 km Gap = 249.9 deg Accuracy = C
Effects Code = Imax = 0 Fault =
152 km SW (230 deg) of LP03
WESTERN AUSTRALIA
911 km N (344 deg) of PERTH
99 km N (343 deg) of CARNARVON
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.5
PHASE INFORMATION
DATA USED
ASPA e P 284.20 0.50 0.51 292.19 -7.99 2131.3 93 -43.2 43.2
ASPA S 478.90 0.50 0.65 490.63 -11.73 2131.3 93 -40.9 40.8
BAL e P 131.00 0.30 0.58 130.67 0.33 801.5 156 -42.2 42.2
BAL e S 217.00 1.00 0.41 207.20 9.80 801.5 156 -40.3 40.3
COOL e P 164.00 0.40 0.53 164.91 -0.91 1084.5 136 -42.2 42.2
COOL e S 276.00 1.00 0.40 266.82 9.18 1084.5 136 -40.3 40.3
FORR P 239.00 0.50 0.72 233.67 5.33 1653.1 120 -42.2 42.2
FORR e S 392.50 1.00 0.40 386.54 5.96 1653.1 120 -40.3 40.3
KLB e P 148.00 2.00 0.39 148.01 -0.01 944.9 153 -42.2 42.2
KLB S 235.00 5.00 0.42 237.40 -2.40 944.9 153 -40.3 40.3
MBL i P 123.50 0.10 1.04 122.98 0.52 737.9 65 -42.2 42.2
MBL S 192.00 2.00 0.52 193.81 -1.81 737.9 65 -40.3 40.3
MBL SG 233.00 2.00 0.52 231.49 1.51 737.9 65 0.4 0.4
MEKA e P 109.20 0.10 0.75 105.64 3.56 594.3 120 -42.2 42.2
MEKA S 167.00 1.00 0.61 163.63 3.37 594.3 120 -40.3 40.3
MRWA P 112.30 0.30 0.85 110.23 2.07 632.5 156 -42.2 42.2
MRWA S 171.00 1.00 0.60 171.62 -0.62 632.5 156 -40.3 40.3
MUN P 145.00 0.20 0.89 145.66 -0.66 925.5 163 -42.2 42.2
MUN e S 232.00 0.50 0.47 233.31 -1.31 925.5 163 -40.3 40.3
NANU i+P 65.90 0.30 0.92 66.57 -0.67 271.6 53 -42.2 42.2
NWAO P 160.00 0.50 0.73 161.69 -1.69 1058.0 160 -42.2 42.2
NWAO e S 259.00 0.50 0.46 261.21 -2.21 1058.0 160 -40.3 40.3
WARB e P 197.00 1.00 0.44 199.87 -2.87 1373.7 102 -42.2 42.2
WARB e S 324.00 1.00 0.40 327.69 -3.69 1373.7 102 -40.3 40.3
WARB e SG 417.00 1.00 0.40 407.10 9.90 1373.7 102 0.2 0.2
WB5 e P 298.00 0.30 0.56 305.14 -7.14 2238.5 82 -47.5 48.7
WB5 S 504.50 1.00 0.57 519.78 -15.28 2238.5 82 -42.7 42.5
Velocity Ratios
MRWA MBL MUN
MRWA 1.69 0.00 1.87
0.02 0.00 0.08
MBL 0.00 1.71 1.86
0.00 0.02 0.14
MUN 1.87 1.86 1.74
0.08 0.14 0.01
Start
Date 1990-03-30
Origin Time 1631 26.73 +- 22.53
Zone 49
Easting 721.62 +- 226.18 Longitude 113.178
Northing 7344.86 +- 120.18 Latitude -23.993
Depth 5.00 +- 413.41 N
Nearest recorder = 614.1 km Gap = 264.4 deg Accuracy = C
Effects Code = Imax = 0 Fault =
167 km SW (236 deg) of LP03
WESTERN AUSTRALIA
920 km N (343 deg) of PERTH
110 km NW (333 deg) of CARNARVON
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
BAL e P 131.00 0.30 0.58 131.15 -0.15 813.0 155 -42.2 42.2
BAL e S 217.00 1.00 0.41 208.71 8.29 813.0 155 -40.3 40.3
COOL e P 164.00 0.40 0.53 166.04 -2.04 1101.3 136 -42.2 42.2
COOL e S 276.00 1.00 0.40 269.45 6.55 1101.3 136 -40.3 40.3
MBL i P 123.50 0.10 1.04 124.23 -0.73 755.8 66 -42.2 42.2
MBL S 192.00 2.00 0.51 196.66 -4.66 755.8 66 -40.3 40.3
MBL SG 233.00 2.00 0.51 235.52 -2.52 755.8 66 0.4 0.4
MEKA e P 109.20 0.10 0.74 107.13 2.07 614.1 119 -42.2 42.2
MEKA S 167.00 1.00 0.60 166.89 0.11 614.1 119 -40.3 40.3
MRWA P 112.30 0.30 0.85 110.73 1.57 644.1 154 -42.2 42.2
MRWA S 171.00 1.00 0.60 173.16 -2.16 644.1 154 -40.3 40.3
MUN P 145.00 0.20 0.89 145.88 -0.88 934.8 162 -42.2 42.2
MUN e S 232.00 0.50 0.46 234.36 -2.36 934.8 162 -40.3 40.3
Velocity Ratios
MEKA MRWA
MEKA 1.70 0.00
0.01 0.00
MRWA 0.00 1.69
0.00 0.02
Start
Date 1990-04-14
Origin Time 1213 22.18 +- 37.80
Zone 51
Easting 679.39 +- 198.47 Longitude 124.677
Northing 8223.17 +-1212.90 Latitude -16.065
Depth 5.00 +-1150.85 N
Nearest recorder = 440.1 km Gap = 214.2 deg Accuracy = D
Effects Code = Imax = 0 Fault =
439 km W (264 deg) of KNA
WESTERN AUSTRALIA
178 km NE ( 39 deg) of Derby
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.5
PHASE INFORMATION
DATA USED
KNA e PG 93.70 0.30 0.62 93.98 -0.28 440.1 85 0.7 0.7
KNA e SG 144.00 0.50 0.50 143.76 0.24 440.1 85 0.7 0.7
MBL w P 121.00 4.00 0.36 120.31 0.69 761.0 221 -42.2 42.2
MBL e S 193.00 1.00 0.41 193.20 -0.20 761.0 221 -40.3 40.3
MEKA e S 172.00 1.50 0.37 313.13-141.13 1330.3 207 -40.3 40.3
MRWA e P 123.40 0.20 0.61 234.90-111.50 1708.5 209 -42.2 42.2
NANU w P 174.00 2.00 0.39 173.78 0.22 1203.3 231 -42.2 42.2
NANU w S 286.00 2.00 0.35 286.31 -0.31 1203.3 231 -40.3 40.3
Velocity Ratios
MBL NANU
MBL 1.73 0.00
0.08 0.00
NANU 0.00 1.74
0.00 0.04
Start
Date 1990-04-15
Origin Time 0620 21.82 +- 9.75
Zone 49
Easting 814.89 +- 29.03 Longitude 114.057
Northing 7527.73 +- 47.43 Latitude -22.327
Depth 5.00 +- 73.29 N
Nearest recorder = 150.7 km Gap = 269.5 deg Accuracy = C
Effects Code = Imax = 0 Fault =
104 km NW (331 deg) of LP03
WESTERN AUSTRALIA
46 km S (190 deg) of Exmouth
9 km S (196 deg) of Learmonth
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.2
PHASE INFORMATION
DATA USED
BAL e P 144.00 0.50 0.52 143.58 0.42 956.4 164 -42.2 42.2
BAL e S 233.00 0.30 0.51 234.00 -1.00 956.4 164 -40.3 40.3
COOL e P 169.50 0.20 0.61 171.53 -2.03 1187.3 145 -42.2 42.2
COOL e S 280.50 0.50 0.46 282.66 -2.16 1187.3 145 -40.3 40.3
FORR e P 229.20 0.20 0.61 233.77 -4.57 1702.0 127 -42.2 42.2
FORR e S 386.00 0.50 0.46 391.01 -5.01 1702.0 127 -40.3 40.3
MBL e P 102.00 1.00 0.47 102.19 -0.19 614.2 78 -42.2 42.2
MBL e S 160.00 0.30 0.54 161.94 -1.94 614.2 78 -40.3 40.3
MEKA e P 107.00 0.50 0.54 107.64 -0.64 658.9 137 -42.2 42.2
MEKA e S 172.00 1.50 0.39 171.42 0.58 658.9 137 -40.3 40.3
MRWA e P 123.40 0.20 0.63 123.34 0.06 789.0 166 -42.2 42.2
MRWA e S 195.00 2.00 0.36 198.76 -3.76 789.0 166 -40.3 40.3
MUN e P 159.50 0.50 0.51 159.99 -0.49 1092.2 169 -42.2 42.2
MUN e S 260.50 0.50 0.46 262.57 -2.07 1092.2 169 -40.3 40.3
NANU i P 46.30 0.10 1.21 45.70 0.60 150.7 99 -30.8 30.8
NANU e S 64.00 1.00 0.48 63.48 0.52 150.7 99 1.9 1.9
WARB i-P 190.90 0.20 0.87 192.81 -1.91 1363.3 111 -42.2 42.2
WARB e S 313.00 0.50 0.46 319.70 -6.70 1363.3 111 -40.3 40.3
Velocity Ratios
NANU MEKA
NANU 1.72 1.78
0.05 0.06
MEKA 1.78 1.76
0.06 0.03
Start
Date 1990-04-15
Origin Time 1317 57.98 +- 1.53
Zone 50
Easting 480.54 +- 13.06 Longitude 116.797
Northing 6620.32 +- 10.16 Latitude -30.549
Depth 2.72 +- 19.61
Nearest recorder = 10.7 km Gap = 169.6 deg Accuracy = A
Effects Code = Imax = 0 Fault =
10 km NE ( 53 deg) of BAL
WESTERN AUSTRALIA
180 km NE ( 30 deg) of PERTH
6 km NE ( 25 deg) of Ballidu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.6
PHASE INFORMATION
DATA USED
BAL S-P 1.50 0.30 1.20 1.26 0.24 10.7 233 0.0 0.0
BAL i-P 59.80 0.10 1.49 59.81 -0.01 10.7 233 15.7 15.7
BAL e S 61.30 0.30 0.75 61.07 0.23 10.7 233 15.7 15.7
COOL e P 114.00 0.50 0.56 114.94 -0.94 418.2 96 -42.2 42.2
COOL e PG 125.20 0.50 0.56 126.20 -1.00 418.2 96 0.4 0.4
COOL e S 156.70 0.20 0.61 157.30 -0.60 418.2 96 -40.3 40.3
COOL e SG 172.50 0.30 0.56 173.51 -1.01 418.2 96 0.4 0.4
FORR e P 195.20 0.20 0.61 195.50 -0.30 1084.4 94 -42.2 42.2
FORR e S 298.30 0.30 0.51 297.56 0.74 1084.4 94 -40.3 40.3
FORR e SG 353.00 0.30 0.51 357.54 -4.54 1084.4 94 0.2 0.2
KLB e P 81.60 0.20 0.74 81.63 -0.03 147.6 141 -30.8 30.8
KLB e S 98.80 0.20 0.67 98.76 0.04 147.6 141 1.2 1.2
MEKA e P 119.00 0.50 0.55 120.94 -1.94 467.8 21 -42.2 42.2
MEKA w S 166.00 2.00 0.39 167.75 -1.75 467.8 21 -40.3 40.3
MEKA e SG 184.70 0.30 0.55 187.21 -2.51 467.8 21 0.4 0.4
MRWA i-P 84.30 0.10 1.21 84.29 0.01 166.6 332 -30.8 30.8
MRWA i PG 84.30 0.20 1.05 85.16 -0.86 166.6 332 1.0 1.0
MRWA e SG 102.50 0.50 0.55 104.01 -1.51 166.6 332 1.0 1.0
MRWA e S 102.90 0.50 0.55 104.01 -1.11 166.6 332 1.0 1.0
MUN e P 84.50 0.20 0.73 84.49 0.01 168.0 199 -30.8 30.8
MUN i PG 85.10 0.10 1.20 85.40 -0.30 168.0 199 1.0 1.0
MUN i S 104.40 0.10 1.08 104.39 0.01 168.0 199 -23.9 23.9
NWAO w P 96.50 2.00 0.45 96.60 -0.10 266.7 171 -42.2 42.2
NWAO e SG 130.60 0.20 0.63 131.67 -1.07 266.7 171 0.6 0.6
RKG w S 162.00 2.00 0.39 163.15 -1.15 446.1 177 -40.3 40.3
RKG e SG 180.00 0.30 0.56 181.23 -1.23 446.1 177 0.4 0.4
WARB e P 194.60 0.20 0.57 195.28 -0.68 1082.6 65 -42.2 42.2
WARB e S 298.00 0.30 0.45 297.18 0.82 1082.6 65 -40.3 40.3
Velocity Ratios
KLB MUN
KLB 1.73 0.00
0.02 0.00
MUN 0.00 1.75
0.00 0.02
Start
Date 1990-04-17
Origin Time 0756 10.53 +- 12.35
Zone 50
Easting 559.41 +- 33.40 Longitude 117.601
Northing 6968.83 +- 24.76 Latitude -27.403
Depth 0.00 +- 95.03 C
Nearest recorder = 127.2 km Gap = 120.6 deg Accuracy = C
Effects Code = Imax = 0 Fault =
127 km SW (226 deg) of MEKA
WESTERN AUSTRALIA
532 km N ( 19 deg) of PERTH
128 km SW (224 deg) of MEEKATHARRA
10 km SW (208 deg) of Big Bell Mine
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
COOL e P 80.50 0.30 0.61 80.81 -0.31 517.6 139 -40.9 40.9
COOL e S 133.00 1.00 0.43 133.93 -0.93 517.6 139 -39.8 39.8
COOL SG 153.00 2.00 0.54 156.74 -3.74 517.6 139 0.1 0.1
MEKA S-P 15.00 1.00 0.78 15.18 -0.18 127.2 46 0.0 0.0
MEKA P 41.50 0.20 1.08 31.28 10.22 127.2 46 0.2 0.2
MEKA S 56.00 1.00 0.70 46.45 9.55 127.2 46 0.2 0.2
MRWA e P 49.00 0.20 0.71 48.46 0.54 255.4 217 -40.9 40.9
MRWA e S 76.30 0.20 0.64 77.01 -0.71 255.4 217 -39.8 39.8
NANU e P 88.00 0.20 0.65 88.24 -0.24 578.2 338 -40.9 40.9
NANU e S 145.00 1.00 0.43 146.99 -1.99 578.2 338 -39.8 39.8
Velocity Ratios
MRWA COOL NANU
MRWA 1.71 1.80 1.76
0.01 0.07 0.05
COOL 1.80 1.75 0.00
0.07 0.02 0.00
NANU 1.76 0.00 1.74
0.05 0.00 0.02
Start
Date 1990-04-19
Origin Time 0011 43.98 +- 0.78
Zone 50
Easting 479.16 +- 5.81 Longitude 116.783
Northing 6622.11 +- 4.48 Latitude -30.533
Depth 3.76 +- 10.98
Nearest recorder = 10.9 km Gap = 169.5 deg Accuracy = A
Effects Code = Imax = 0 Fault =
10 km NE ( 41 deg) of BAL
WESTERN AUSTRALIA
180 km NE ( 30 deg) of PERTH
8 km N ( 9 deg) of Ballidu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
PHASE INFORMATION
DATA USED
BAL i-P 45.80 0.10 1.49 45.88 -0.08 10.9 221 20.4 20.4
BAL e S 47.40 0.20 0.82 47.20 0.20 10.9 221 20.4 20.4
KLB e P 68.00 0.50 0.62 67.86 0.14 149.9 141 -30.8 30.8
KLB e S 85.30 0.20 0.67 85.39 -0.09 149.9 141 1.6 1.6
MRWA e P 70.30 0.20 0.74 69.89 0.41 164.3 332 -30.8 30.8
MRWA e S 89.00 0.20 0.66 89.35 -0.35 164.3 332 -23.9 23.9
MUN e PG 71.60 0.20 0.73 71.60 0.00 169.3 198 1.4 1.4
MUN e S 90.50 0.20 0.66 90.58 -0.08 169.3 198 -23.9 23.9
NWAO e SG 116.50 0.50 0.53 118.21 -1.71 268.7 171 0.9 0.9
Velocity Ratios
BAL KLB MRWA
BAL 1.88 1.71 1.70
0.23 0.07 0.04
KLB 1.71 1.72 0.00
0.07 0.05 0.00
MRWA 1.70 0.00 1.71
0.04 0.00 0.02
Start
Date 1990-04-20
Origin Time 0115 35.68 +- 0.82
Zone 50
Easting 478.95 +- 7.77 Longitude 116.781
Northing 6621.59 +- 4.94 Latitude -30.538
Depth 5.38 +- 9.71
Nearest recorder = 10.4 km Gap = 169.2 deg Accuracy = A
Effects Code = Imax = 0 Fault =
10 km NE ( 42 deg) of BAL
WESTERN AUSTRALIA
180 km NE ( 30 deg) of PERTH
7 km N ( 8 deg) of Ballidu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.1
PHASE INFORMATION
DATA USED
BAL S-P 1.60 0.20 1.30 1.34 0.26 10.4 222 0.0 0.0
BAL i-P 37.50 0.10 1.50 37.61 -0.11 10.4 222 28.6 28.6
BAL e S 39.10 0.20 0.82 38.96 0.14 10.4 222 28.6 28.6
COOL w P 103.00 2.00 0.43 92.55 10.45 419.9 96 -42.2 42.2
COOL e S 134.00 2.00 0.38 134.88 -0.88 419.9 96 -40.3 40.3
COOL e SG 150.00 1.00 0.44 151.68 -1.68 419.9 96 0.8 0.8
KLB e P 60.00 1.00 0.54 59.38 0.62 149.6 141 -30.8 30.8
KLB e S 77.00 0.20 0.67 77.03 -0.03 149.6 141 2.2 2.2
MRWA e P 62.10 0.20 0.74 61.50 0.60 164.7 332 -30.8 30.8
MRWA e S 80.60 0.20 0.66 80.96 -0.36 164.7 332 -23.9 23.9
MUN e PG 63.00 0.20 0.73 63.21 -0.21 168.7 198 1.9 1.9
MUN e P 63.00 0.20 0.73 62.06 0.94 168.7 198 -30.8 30.8
MUN e S 81.80 0.20 0.66 81.95 -0.15 168.7 198 -40.3 40.3
NWAO e P 72.00 1.00 0.51 74.19 -2.19 268.2 170 -42.2 42.2
NWAO e SG 108.10 0.20 0.63 109.79 -1.69 268.2 170 1.2 1.2
Velocity Ratios
BAL KLB MRWA
BAL 1.88 1.68 1.69
0.23 0.11 0.04
KLB 1.68 1.70 0.00
0.11 0.08 0.00
MRWA 1.69 0.00 1.70
0.04 0.00 0.02
Start
Date 1990-04-21
Origin Time 0412 48.76 +- 16.59
Zone 50
Easting 564.12 +- 119.66 Longitude 117.648
Northing 6971.52 +- 52.47 Latitude -27.378
Depth 0.00 +- 168.53 C
Nearest recorder = 260.4 km Gap = 162.2 deg Accuracy = C
Effects Code = Imax = 0 Fault =
121 km SW (225 deg) of MEKA
WESTERN AUSTRALIA
536 km N ( 19 deg) of PERTH
122 km SW (224 deg) of MEEKATHARRA
6 km S (181 deg) of Big Bell Mine
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
COOL e P 118.70 0.20 0.66 118.92 -0.22 516.6 139 -40.9 40.9
MEKA S-P 17.00 1.00 0.78 14.55 2.45 121.9 46 0.0 0.0
MEKA P 79.00 0.10 1.24 68.64 10.36 121.9 46 0.2 0.2
MRWA e P 87.20 0.10 0.81 87.31 -0.11 260.4 217 -40.9 40.9
MRWA e S 115.50 0.40 0.55 116.33 -0.83 260.4 217 -39.8 39.8
MUN P 121.00 1.00 0.68 120.35 0.65 528.4 194 -40.9 40.9
MUN S 171.00 2.00 0.53 174.46 -3.46 528.4 194 -39.8 39.8
MUN SG 195.00 1.00 0.61 198.04 -3.04 528.4 194 0.0 0.0
NANU i-P 126.00 0.10 1.07 126.38 -0.38 577.4 337 -40.9 40.9
Velocity Ratios
MRWA
MRWA 1.74
0.01
Start
Date 1990-04-21
Origin Time 0938 7.51 +- 6.31
Zone 50
Easting 682.29 +- 21.02 Longitude 118.865
Northing 6832.41 +- 53.89 Latitude -28.622
Depth 0.00 +- 89.80 C
Nearest recorder = 287.3 km Gap = 243.4 deg Accuracy = C
Effects Code = Imax = 0 Fault =
214 km N ( 8 deg) of BR2
WESTERN AUSTRALIA
469 km NE ( 39 deg) of PERTH
117 km SE (122 deg) of Mt Magnet
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.9
PHASE INFORMATION
DATA USED
BAL i P 51.60 0.10 1.14 51.34 0.26 303.3 222 -40.9 40.9
BAL e S 84.30 0.20 0.63 84.39 -0.09 303.3 222 -39.8 39.8
COOL i P 55.50 0.10 1.13 55.16 0.34 334.1 139 -40.9 40.9
COOL e S 89.00 0.50 0.52 91.09 -2.09 334.1 139 -39.8 39.8
MRWA i P 48.70 0.10 1.15 49.37 -0.67 287.3 255 -40.9 40.9
MRWA e S 81.00 0.50 0.52 80.92 0.08 287.3 255 -39.8 39.8
MUN i P 70.00 0.10 1.10 69.57 0.43 451.1 213 -40.9 40.9
MUN e S 114.00 0.50 0.50 116.44 -2.44 451.1 213 -39.8 39.8
Velocity Ratios
MRWA BAL COOL MUN
MRWA 1.78 0.00 1.18 1.55
0.02 0.00 0.19 0.06
BAL 0.00 1.74 0.00 1.61
0.00 0.01 0.00 0.06
COOL 1.18 0.00 1.70 1.72
0.19 0.00 0.01 0.09
MUN 1.55 1.61 1.72 1.70
0.06 0.06 0.09 0.01
Start
Date 1990-04-21
Origin Time 2136 53.14 +- 825.62
Zone 52
Easting 330.15 +-5453.98 Longitude 127.301
Northing 7107.21 +-1822.60 Latitude -26.144
Depth 9.92 +-1601.20
Nearest recorder = 65.9 km Gap = 282.8 deg Accuracy = C
Effects Code = Imax = 0 Fault =
65 km E ( 86 deg) of WARB
WESTERN AUSTRALIA
72 km E ( 91 deg) of WARBURTON
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.1
PHASE INFORMATION
DATA USED
BAL e P 197.00 0.50 0.51 198.58 -1.58 1156.7 241 -42.2 42.2
BAL e S 304.00 1.00 0.40 306.60 -2.60 1156.7 241 -40.3 40.3
COOL e P 157.00 2.00 0.40 155.61 1.39 801.1 227 -42.2 42.2
COOL e S 231.70 0.50 0.47 231.78 -0.08 801.1 227 -40.3 40.3
HWK e P 168.00 0.50 0.44 165.70 2.30 884.8 120 -42.2 42.2
HWK S 255.00 1.00 0.46 249.35 5.65 884.8 120 -40.3 40.3
MBL w P 75.00 5.00 0.37 172.90 -97.90 944.4 304 -42.2 42.2
MBL e PG 75.00 1.00 0.49 207.20-132.20 944.4 304 0.6 0.6
MBL e P 173.00 0.30 0.57 172.90 0.10 944.4 304 -42.2 42.2
MBL e S 262.00 1.00 0.40 261.89 0.11 944.4 304 -40.3 40.3
MEKA e P 165.10 0.50 0.52 165.23 -0.13 880.7 264 -42.2 42.2
MEKA e S 247.00 2.00 0.35 248.53 -1.53 880.7 264 -40.3 40.3
MRWA e P 200.00 1.00 0.44 200.66 -0.66 1173.9 250 -42.2 42.2
MRWA e S 309.00 0.50 0.46 310.23 -1.23 1173.9 250 -40.3 40.3
MUN e P 212.00 0.30 0.56 211.81 0.19 1266.2 236 -42.2 42.2
NANU e P 212.00 1.00 0.44 212.56 -0.56 1272.5 286 -42.2 42.2
NWAO e P 201.00 1.00 0.44 208.35 -7.35 1237.5 229 -42.2 42.2
NWAO e S 323.00 1.00 0.40 323.61 -0.61 1237.5 229 -40.3 40.3
PNA e P 215.00 0.50 0.43 208.99 6.01 1242.9 124 -42.2 42.2
PNA w S 331.00 2.00 0.37 324.73 6.27 1242.9 124 -40.3 40.3
WARB i-P 64.00 0.10 1.30 64.02 -0.02 65.9 266 9.0 9.0
Velocity Ratios
MBL
MBL 9.55
2.89
Start
Date 1990-04-28 Event type = BL
Origin Time 0648 17.89 +- 52.57
Zone 50
Easting 411.78 +- 272.59 Longitude 116.149
Northing 7626.64 +- 478.29 Latitude -21.460
Depth 0.00 +- 212.95 C
Nearest recorder = 137.5 km Gap = 236.8 deg Accuracy = D
Effects Code = Imax = 0 Fault =
29 km NE ( 67 deg) of LP05
WESTERN AUSTRALIA
108 km E ( 80 deg) of Onslow
108 km SW (213 deg) of Dampier
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.8
PHASE INFORMATION
DATA USED
MBL w P 75.00 5.00 0.37 70.94 4.06 383.7 85 -42.2 42.2
MBL e PG 75.00 1.00 0.49 80.48 -5.48 383.7 85 0.0 0.0
MBL e SG 124.00 0.50 0.51 123.88 0.12 383.7 85 0.0 0.0
MBL e S 124.00 0.50 0.51 110.38 13.62 383.7 85 -40.3 40.3
MRWA e P 128.00 0.50 0.52 128.46 -0.46 859.3 180 -42.2 42.2
MRWA e S 210.50 1.00 0.41 210.52 -0.02 859.3 180 -40.3 40.3
NANU i-P 40.40 0.10 1.23 40.32 0.08 137.5 208 0.0 0.0
NANU e S 56.00 0.50 0.56 55.87 0.13 137.5 208 0.0 0.0
Velocity Ratios
NANU MRWA
NANU 1.69 1.76
0.03 0.03
MRWA 1.76 1.75
0.03 0.02
Start
Date 1990-04-28
Origin Time 1352 43.13 +- 2.04
Zone 50
Easting 479.41 +- 22.21 Longitude 116.785
Northing 6622.18 +- 6.14 Latitude -30.532
Depth 5.49 +- 9.05
Nearest recorder = 11.2 km Gap = 226.4 deg Accuracy = A
Effects Code = Imax = 0 Fault =
11 km NE ( 42 deg) of BAL
WESTERN AUSTRALIA
181 km NE ( 30 deg) of PERTH
8 km N ( 11 deg) of Ballidu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.5
PHASE INFORMATION
DATA USED
BAL S-P 1.50 0.10 1.49 1.42 0.08 11.2 222 0.0 0.0
BAL i-P 45.10 0.10 1.49 45.18 -0.08 11.2 222 27.4 27.4
BAL i S 46.60 0.10 1.34 46.60 -0.00 11.2 222 27.4 27.4
MRWA e PG 70.30 0.20 0.74 69.96 0.34 164.4 332 2.0 2.0
MRWA e P 70.30 0.20 0.73 68.90 1.40 164.4 332 -30.8 30.8
MRWA e S 88.10 0.20 0.66 88.32 -0.22 164.4 332 -23.9 23.9
MUN e P 70.00 1.00 0.53 69.60 0.40 169.4 198 -30.8 30.8
MUN e S 89.50 0.20 0.66 89.54 -0.04 169.4 198 -40.3 40.3
Velocity Ratios
BAL MUN
BAL 1.76 1.72
0.15 0.09
MUN 1.72 1.73
0.09 0.07
Start
Date 1990-04-30
Origin Time 0419 30.27 +- 1.19
Zone 50
Easting 480.79 +- 9.07 Longitude 116.800
Northing 6622.43 +- 4.57 Latitude -30.530
Depth 4.75 +- 10.50
Nearest recorder = 12.3 km Gap = 170.6 deg Accuracy = A
Effects Code = Imax = 0 Fault =
12 km NE ( 46 deg) of BAL
WESTERN AUSTRALIA
182 km NE ( 30 deg) of PERTH
8 km N ( 20 deg) of Ballidu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.7
PHASE INFORMATION
DATA USED
BAL S-P 1.70 0.20 1.29 1.50 0.20 12.3 226 0.0 0.0
BAL i-P 32.30 0.10 1.48 32.44 -0.14 12.3 226 22.3 22.3
BAL e S 34.00 0.20 0.81 33.94 0.06 12.3 226 22.3 22.3
KLB e P 53.00 1.00 0.54 53.96 -0.96 149.1 142 -30.8 30.8
KLB e S 71.30 0.20 0.67 71.48 -0.18 149.1 142 1.9 1.9
MEKA e S 140.50 0.50 0.50 139.24 1.26 465.7 21 -40.3 40.3
MEKA e SG 159.10 0.20 0.60 158.93 0.17 465.7 21 0.6 0.6
MRWA i-P 56.70 0.10 1.21 56.16 0.54 164.8 331 -30.8 30.8
MRWA i PG 56.70 0.10 1.21 57.17 -0.47 164.8 331 1.8 1.8
MRWA i S 75.20 0.10 1.09 75.65 -0.45 164.8 331 -23.9 23.9
MUN i-P 57.10 0.10 1.20 56.89 0.21 170.1 199 -30.8 30.8
MUN i PG 58.00 0.10 1.20 58.03 -0.03 170.1 199 1.7 1.7
MUN e S 76.50 0.20 0.66 76.95 -0.45 170.1 199 -40.3 40.3
NWAO e P 69.00 2.00 0.44 68.91 0.09 268.8 171 -42.2 42.2
NWAO e SG 103.00 0.30 0.58 104.53 -1.53 268.8 171 1.1 1.1
RKG e SG 152.00 2.00 0.38 154.10 -2.10 448.2 177 0.6 0.6
WARB i+P 167.00 0.10 1.00 167.21 -0.21 1081.5 65 -42.2 42.2
WARB e S 267.00 1.00 0.40 268.87 -1.87 1081.5 65 -40.3 40.3
Velocity Ratios
BAL MRWA MUN
BAL 1.84 1.69 1.71
0.20 0.03 0.03
MRWA 1.69 1.70 0.00
0.03 0.01 0.00
MUN 1.71 0.00 1.72
0.03 0.00 0.01
Start
Date 1990-04-30
Origin Time 0424 30.76 +- 1.20
Zone 50
Easting 481.59 +- 5.15 Longitude 116.808
Northing 6622.51 +- 4.46 Latitude -30.529
Depth 1.00 +- 18.67 C
Nearest recorder = 13.0 km Gap = 171.2 deg Accuracy = A
Effects Code = Imax = 0 Fault =
12 km W (291 deg) of PIG
WESTERN AUSTRALIA
182 km NE ( 30 deg) of PERTH
9 km NE ( 25 deg) of Ballidu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.0
PHASE INFORMATION
DATA USED
BAL S-P 1.70 0.20 1.28 1.47 0.23 13.0 228 0.0 0.0
BAL i-P 32.80 0.10 1.47 32.89 -0.09 13.0 228 5.7 5.7
BAL e S 34.50 0.20 0.81 34.36 0.14 13.0 228 5.7 5.7
FORR e P 168.00 0.30 0.56 168.36 -0.36 1083.5 94 -42.2 42.2
FORR e S 270.00 0.30 0.51 270.46 -0.46 1083.5 94 -40.3 40.3
KLB e P 55.00 0.40 0.65 54.71 0.29 148.7 142 -30.8 30.8
KLB e S 72.00 0.20 0.67 71.84 0.16 148.7 142 0.5 0.5
MEKA e S 138.00 0.50 0.50 140.32 -2.32 465.3 21 -40.3 40.3
MEKA e SG 159.30 0.30 0.55 159.31 -0.01 465.3 21 0.2 0.2
MRWA i-P 57.10 0.10 1.21 57.01 0.09 165.1 331 -30.8 30.8
MRWA e S 75.50 1.00 0.48 76.38 -0.88 165.1 331 0.5 0.5
MUN i+P 57.60 0.20 1.05 57.75 -0.15 170.4 199 -30.8 30.8
MUN e PG 58.30 0.20 0.73 58.57 -0.27 170.4 199 0.4 0.4
MUN e S 77.70 0.20 0.66 77.84 -0.14 170.4 199 0.4 0.4
NWAO e P 69.00 2.00 0.44 69.81 -0.81 268.7 171 -42.2 42.2
NWAO e SG 103.30 0.20 0.63 105.00 -1.70 268.7 171 0.3 0.3
WARB e P 167.40 0.20 0.61 168.02 -0.62 1080.8 65 -42.2 42.2
WARB e S 269.00 0.50 0.46 269.87 -0.87 1080.8 65 -40.3 40.3
Velocity Ratios
BAL KLB MUN
BAL 1.83 1.69 1.74
0.20 0.06 0.04
KLB 1.69 1.70 0.00
0.06 0.04 0.00
MUN 1.74 0.00 1.75
0.04 0.00 0.02
Start
Date 1990-04-30
Origin Time 0522 30.70 +- 1.09
Zone 50
Easting 484.04 +- 9.76 Longitude 116.834
Northing 6623.43 +- 4.08 Latitude -30.521
Depth 3.65 +- 6.29
Nearest recorder = 15.4 km Gap = 229.3 deg Accuracy = A
Effects Code = Imax = 0 Fault =
10 km NW (301 deg) of PIG
WESTERN AUSTRALIA
184 km NE ( 31 deg) of PERTH
11 km NE ( 35 deg) of Ballidu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
PHASE INFORMATION
DATA USED
BAL S-P 1.80 0.20 1.27 1.80 -0.00 15.4 231 0.0 0.0
BAL i-P 33.30 0.10 1.46 33.30 -0.00 15.4 231 14.4 14.4
BAL e S 35.10 0.20 0.80 35.10 -0.00 15.4 231 14.4 14.4
MRWA e PG 57.70 0.10 0.84 57.71 -0.01 165.5 330 1.4 1.4
MRWA e P 57.70 0.20 0.74 56.79 0.92 165.5 330 -30.8 30.8
MRWA e S 76.40 0.20 0.66 76.38 0.02 165.5 330 -23.9 23.9
MUN e P 58.50 0.20 0.73 57.70 0.80 172.1 199 -30.8 30.8
MUN e PG 58.80 0.10 0.84 58.79 0.01 172.1 199 1.3 1.3
MUN e S 78.00 0.10 0.76 78.01 -0.01 172.1 199 -40.3 40.3
NWAO e SG 103.80 0.50 0.53 105.10 -1.30 269.3 172 0.8 0.8
Velocity Ratios
BAL
BAL 1.69
0.15
Start
Date 1990-05-05
Origin Time 0516 28.44 +- 26.67
Zone 52
Easting 599.95 +- 153.53 Longitude 129.991
Northing 7225.09 +- 90.03 Latitude -25.087
Depth 24.00 +- 325.61
Nearest recorder = 357.4 km Gap = 157.4 deg Accuracy = C
Effects Code = Imax = 0 Fault =
357 km E ( 70 deg) of WARB
NORTHERN TERRITORY
109 km W (285 deg) of AYERS ROCK
95 km E (105 deg) of DOCKER RIVER
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
FORR P 113.00 0.50 0.77 112.56 0.44 660.5 196 -30.3 42.2
FORR S 180.00 1.00 0.60 175.17 4.83 660.5 196 -33.5 40.3
FORR SG 202.00 1.00 0.60 197.42 4.58 660.5 196 0.5 23.9
MBL P 176.00 3.00 0.51 169.37 6.63 1130.6 290 -30.3 42.2
MBL S 275.00 1.00 0.57 274.07 0.93 1130.6 290 -33.5 40.3
WARB i+P 75.90 0.10 1.12 75.91 -0.01 357.4 249 -30.3 42.2
WARB e S 115.60 0.20 0.62 111.35 4.25 357.4 249 -33.5 40.3
WB5 e P 127.00 0.20 0.64 121.25 5.75 732.5 38 -30.3 42.2
WB5 e S 202.30 0.50 0.48 190.29 12.01 732.5 38 -33.5 40.3
Velocity Ratios
WARB FORR WB5
WARB 1.84 1.74 1.70
0.01 0.06 0.02
FORR 1.74 1.79 1.59
0.06 0.02 0.20
WB5 1.70 1.59 1.76
0.02 0.20 0.01
Start
Date 1990-05-06
Origin Time 2351 15.16 +- 1.62
Zone 50
Easting 479.24 +- 15.84 Longitude 116.784
Northing 6621.57 +- 10.43 Latitude -30.538
Depth 5.00 +- 19.09 N
Nearest recorder = 10.6 km Gap = 169.4 deg Accuracy = C
Effects Code = Imax = 0 Fault =
10 km NE ( 44 deg) of BAL
WESTERN AUSTRALIA
180 km NE ( 30 deg) of PERTH
7 km N ( 11 deg) of Ballidu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
PHASE INFORMATION
DATA USED
BAL i-P 17.00 0.10 1.49 17.09 -0.09 10.6 223 26.6 26.6
KLB e P 39.20 0.20 0.74 38.87 0.33 149.4 141 -30.8 30.8
KLB e S 56.00 0.30 0.62 56.45 -0.45 149.4 141 2.0 2.0
MRWA e P 41.40 0.20 0.74 41.03 0.37 164.9 332 -30.8 30.8
MRWA e S 60.20 0.20 0.66 60.52 -0.32 164.9 332 -23.9 23.9
MUN e S 61.80 0.20 0.66 61.50 0.30 168.8 198 -23.9 23.9
Velocity Ratios
KLB MRWA
KLB 1.70 0.00
0.03 0.00
MRWA 0.00 1.72
0.00 0.02
Start
Date 1990-05-08 needs coords CAE
Origin Time 1840 56.58 +- 0.47
Zone 50
Easting 509.75 +- 4.93 Longitude 117.102
Northing 6594.85 +- 3.53 Latitude -30.779
Depth 2.45 +- 8.29
Nearest recorder = 0.0 km Gap = 93.6 deg Accuracy = A
Effects Code = Imax = 0 Fault =
3 km W (251 deg) of CADX
WESTERN AUSTRALIA
176 km NE ( 43 deg) of PERTH
3 km W (249 deg) of Cadoux
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 4.5
PHASE INFORMATION
DATA USED
0.00 0.00 0.00 93.61 -93.61 420.3 255 -42.2 42.2
BAL i-P 63.60 0.10 1.35 63.51 0.09 42.4 296 3.7 3.7
CAA S-P 0.74 0.50 1.12 0.74 -0.00 6.0 51 0.0 0.0
CAK S-P 0.90 0.50 0.94 0.93 -0.03 7.7 28 0.0 0.0
CAR S-P 5.00 5.00 0.49 0.50 4.50 3.5 93 0.0 0.0
CAS S-P 0.56 0.50 0.49 0.59 -0.03 4.5 140 0.0 0.0
COOL i+P 108.40 0.10 1.11 109.80 -1.40 387.1 92 -42.2 42.2
DOW S-P 3.10 0.10 1.40 3.19 -0.09 28.0 203 0.0 0.0
DOW P 64.50 0.10 1.40 61.17 3.33 28.0 203 5.6 5.6
DOW S 67.60 0.10 1.26 64.36 3.24 28.0 203 5.6 5.6
FORR P 189.00 0.20 0.88 190.40 -1.40 1053.6 92 -42.2 42.2
FORR S 288.00 0.50 0.66 289.72 -1.72 1053.6 92 -40.3 40.3
GOO S-P 8.10 0.30 1.04 8.17 -0.07 72.2 199 0.0 0.0
GOO P 65.40 0.10 1.30 68.36 -2.96 72.2 199 2.2 2.2
GOO S 73.50 0.30 0.94 76.53 -3.03 72.2 199 2.2 2.2
KLB i+PG 74.50 0.10 1.25 74.48 0.02 109.7 145 1.4 1.4
KLB S 85.30 0.10 1.13 86.90 -1.60 109.7 145 1.4 1.4
KNA P 307.20 0.50 0.72 311.86 -4.66 2057.3 37 -42.4 42.3
KNA S 507.70 0.50 0.65 501.58 6.12 2057.3 37 -40.5 40.4
MBL e P 194.30 0.20 0.61 195.98 -1.68 1100.1 14 -42.2 42.2
MBL S 297.00 0.50 0.65 299.45 -2.45 1100.1 14 -40.3 40.3
MEKA P 121.00 0.20 0.95 121.29 -0.29 482.1 17 -42.2 42.2
MRWA i-P 87.60 0.20 1.03 87.55 0.05 203.2 328 -42.2 42.2
MUN i-P 81.70 0.10 1.21 81.66 0.04 157.7 212 -30.8 30.8
MUN i SG 100.00 0.20 0.95 100.16 -0.16 157.7 212 1.0 1.0
NANU e P 175.20 0.20 0.62 174.90 0.30 925.8 349 -42.2 42.2
NWAO i+P 90.50 0.10 1.17 91.79 -1.29 238.3 177 -42.2 42.2
RKG i P 114.00 0.10 1.11 113.80 0.20 420.3 181 -42.2 42.2
WARB i+P 190.80 0.10 1.00 192.03 -1.23 1067.1 63 -42.2 42.2
WARB S 291.40 0.50 0.66 292.56 -1.16 1067.1 63 -40.3 40.3
WB5 P 312.00 0.30 0.80 321.80 -9.80 2135.2 59 -43.2 43.2
NO VELOCITY RATIOS
Start
Date 1990-05-08
Origin Time 1946 37.50 +- 125.16
Zone 52
Easting 85.34 +-1274.67 Longitude 125.205
Northing 8764.94 +-7800.01 Latitude -11.149
Depth 5.00 +-8014.59 N
Nearest recorder = 638.8 km Gap = 289.3 deg Accuracy = D
Effects Code = Imax = 0 Fault =
206 km SE (122 deg) of KUPT
630 km W (283 deg) of DARWIN
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
KNA e P 120.50 0.10 0.74 120.85 -0.35 638.8 143 -42.2 42.2
MBL e P 197.00 0.50 0.51 195.33 1.67 1254.7 206 -42.2 42.2
MBL e S 311.00 1.00 0.40 312.47 -1.47 1254.7 206 -40.3 40.3
WB5 e P 209.80 0.10 0.70 210.32 -0.52 1378.5 135 -42.2 42.2
WB5 e S 339.80 0.50 0.46 338.56 1.24 1378.5 135 -40.3 40.3
Velocity Ratios
MBL WB5
MBL 1.71 0.00
0.01 0.00
WB5 0.00 1.75
0.00 0.00
Start
Date 1990-05-09
Origin Time 0014 30.44 +- 0.00
Zone 50
Easting 259.77 +- 0.00 Longitude 114.679
Northing 7607.95 +- 0.00 Latitude -21.615
Depth 5.00 +- 0.00 N
Nearest recorder = 536.8 km Gap = 330.5 deg Accuracy = D
Effects Code = Imax = 0 Fault =
124 km NW (320 deg) of LP04
WESTERN AUSTRALIA
94 km NE ( 41 deg) of Learmonth
46 km W (272 deg) of Onslow
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.7
PHASE INFORMATION
DATA USED
MBL e P 101.70 0.20 0.66 101.45 0.25 536.8 85 -42.2 42.2
MBL e S 154.00 0.50 0.49 154.26 -0.26 536.8 85 -40.3 40.3
NANU P 60.00 0.10 1.21 51.87 8.13 133.3 140 -30.8 30.8
WARB e P 196.00 0.50 0.51 196.42 -0.42 1321.9 115 -42.2 42.2
WARB e S 320.00 1.00 0.40 319.61 0.39 1321.9 115 -40.3 40.3
Velocity Ratios
MBL WARB
MBL 1.73 1.76
0.01 0.03
WARB 1.76 1.75
0.03 0.01
Start
Date 1990-05-09
Origin Time 0124 53.45 +- 1.23
Zone 50
Easting 478.62 +- 12.76 Longitude 116.777
Northing 6619.35 +- 9.50 Latitude -30.558
Depth 5.00 +- 17.55 N
Nearest recorder = 8.6 km Gap = 168.1 deg Accuracy = B
Effects Code = Imax = 0 Fault =
8 km NE ( 51 deg) of BAL
WESTERN AUSTRALIA
178 km NE ( 30 deg) of PERTH
5 km N ( 8 deg) of Ballidu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.5
PHASE INFORMATION
DATA USED
BAL i-P 55.00 0.10 1.51 55.11 -0.11 8.6 231 31.5 31.5
KLB e P 77.10 0.10 0.85 76.97 0.13 148.0 141 -30.8 30.8
KLB e S 94.00 0.10 0.77 94.37 -0.37 148.0 141 2.1 2.1
MRWA i P 80.00 0.10 1.21 79.56 0.44 166.5 332 -30.8 30.8
MRWA S 98.70 0.20 0.94 99.24 -0.54 166.5 332 -23.9 23.9
MUN e P 79.90 0.20 0.73 79.55 0.35 166.5 198 -30.8 30.8
MUN e SG 99.50 0.20 0.66 99.46 0.04 166.5 198 1.8 1.8
NWAO e SG 125.10 0.20 0.63 126.97 -1.87 266.1 170 1.1 1.1
NWAO e S 125.10 0.20 0.63 120.30 4.80 266.1 170 -40.3 40.3
Velocity Ratios
KLB MRWA
KLB 1.71 0.00
0.01 0.00
MRWA 0.00 1.70
0.00 0.01
Start
Date 1990-05-09
Origin Time 0241 54.49 +- 4.45
Zone 48
Easting 595.57 +- 178.80 Longitude 105.967
Northing 6962.81 +- 17.36 Latitude -27.455
Depth 5.00 +- 223.48 N
Nearest recorder = 1007.0 km Gap = 300.4 deg Accuracy = C
Effects Code = Imax = 0 Fault =
838 km W (258 deg) of LP01
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 4.1
PHASE INFORMATION
DATA USED
BAL e P 194.90 0.50 0.51 194.61 0.29 1108.2 111 -42.2 42.2
BAL e S 300.00 0.50 0.46 298.63 1.37 1108.2 111 -40.3 40.3
COOL e P 244.00 0.50 0.51 246.68 -2.68 1538.6 108 -42.2 42.2
COOL S 389.00 2.00 0.49 389.29 -0.29 1538.6 108 -40.3 40.3
FORR e P 323.10 0.20 0.61 328.10 -5.00 2205.0 105 -46.1 47.1
FORR e S 528.00 0.50 0.46 537.11 -9.11 2205.0 105 -42.1 41.9
KLB e P 209.70 0.50 0.51 210.37 -0.67 1238.5 114 -42.2 42.2
KLB S 324.00 2.00 0.49 326.06 -2.06 1238.5 114 -40.3 40.3
MBL e P 252.40 0.20 0.61 252.27 0.13 1585.1 66 -42.2 42.2
MBL e S 398.50 0.30 0.51 399.02 -0.52 1585.1 66 -40.3 40.3
MEKA e P 212.60 0.20 0.61 212.92 -0.32 1259.4 88 -42.2 42.2
MEKA e S 330.00 0.50 0.46 330.51 -0.51 1259.4 88 -40.3 40.3
MRWA i+P 183.20 0.30 0.81 182.38 0.82 1007.0 103 -42.2 42.2
MRWA e S 277.50 0.50 0.46 277.34 0.16 1007.0 103 -40.3 40.3
MUN e P 195.00 0.50 0.51 195.43 -0.43 1115.0 119 -42.2 42.2
MUN S 302.00 2.00 0.49 300.06 1.94 1115.0 119 -40.3 40.3
NANU e P 195.50 0.20 0.61 194.83 0.67 1110.2 62 -42.2 42.2
NANU e S 295.00 1.00 0.40 299.02 -4.02 1110.2 62 -40.3 40.3
NWAO e P 210.00 0.50 0.51 211.60 -1.60 1248.7 122 -42.2 42.2
NWAO e S 325.00 0.50 0.46 328.21 -3.21 1248.7 122 -40.3 40.3
WARB P 308.00 1.00 0.50 314.39 -6.39 2095.4 90 -42.7 42.7
WARB i S 500.60 0.30 0.65 508.27 -7.67 2095.4 90 -40.6 40.6
Velocity Ratios
MRWA BAL MUN KLB MEKA MBL
MRWA 1.73 0.00 0.00 1.75 1.79 1.75
0.01 0.00 0.00 0.15 0.07 0.02
BAL 0.00 1.75 0.00 0.00 1.69 1.71
0.00 0.01 0.00 0.00 0.13 0.04
MUN 0.00 0.00 1.76 0.00 0.00 1.68
0.00 0.00 0.02 0.00 0.00 0.06
KLB 1.75 0.00 0.00 1.74 0.00 1.74
0.15 0.00 0.00 0.02 0.00 0.08
MEKA 1.79 1.69 0.00 0.00 1.74 1.72
0.07 0.13 0.00 0.00 0.01 0.04
MBL 1.75 1.71 1.68 1.74 1.72 1.74
0.02 0.04 0.06 0.08 0.04 0.00
Start
Date 1990-05-09
Origin Time 1840 56.58 +- 2.63
Zone 50
Easting 510.95 +- 25.19 Longitude 117.114
Northing 6594.06 +- 17.72 Latitude -30.786
Depth 6.75 +- 40.39
Nearest recorder = 43.8 km Gap = 177.7 deg Accuracy = A
Effects Code = Imax = 0 Fault =
2 km W (255 deg) of CAR
WESTERN AUSTRALIA
176 km NE ( 43 deg) of PERTH
2 km SW (219 deg) of Cadoux
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 4.5
PHASE INFORMATION
DATA USED
BAL i-P 63.60 0.10 1.35 63.82 -0.22 43.8 297 9.1 9.1
COOL P 108.20 0.10 1.11 109.18 -0.98 385.8 92 -42.2 42.2
KLB i+P 74.50 0.10 1.25 74.30 0.20 108.4 145 3.7 3.7
MRWA i-P 87.60 0.20 1.03 87.24 0.36 204.5 328 -42.2 42.2
MUN i-P 81.70 0.10 1.21 81.30 0.40 157.7 212 -30.8 30.8
MUN i S 100.00 0.10 1.09 99.93 0.07 157.7 212 -23.9 23.9
NWAO i+P 90.50 0.10 1.17 91.22 -0.72 237.5 177 -42.2 42.2
Velocity Ratios
MUN
MUN 1.73
0.01
Start
Date 1990-05-09
Origin Time 2305 23.20 +- 0.00
Zone 50
Easting 479.71 +- 0.00 Longitude 116.788
Northing 6621.99 +- 0.00 Latitude -30.534
Depth 5.00 +- 0.00 N
Nearest recorder = 11.2 km Gap = 277.9 deg Accuracy = C
Effects Code = Imax = 0 Fault =
11 km NE ( 44 deg) of BAL
WESTERN AUSTRALIA
181 km NE ( 30 deg) of PERTH
8 km N ( 14 deg) of Ballidu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.1
PHASE INFORMATION
DATA USED
BAL i-P 25.20 0.10 1.49 25.23 -0.03 11.2 224 25.3 25.3
KLB e P 47.20 0.20 0.74 46.91 0.29 149.4 142 -30.8 30.8
KLB e S 64.30 0.20 0.67 64.50 -0.20 149.4 142 2.0 2.0
MRWA S-P 18.50 0.50 0.87 19.47 -0.97 164.7 332 0.0 0.0
MUN e P 51.00 0.10 0.84 49.70 1.30 169.3 198 -30.8 30.8
MUN SG 70.00 0.20 0.88 70.00 0.00 169.3 198 1.8 1.8
Velocity Ratios
KLB
KLB 1.71
0.02
Start
Date 1990-05-09
Origin Time 2310 26.56 +- 2.31
Zone 50
Easting 509.44 +- 20.36 Longitude 117.099
Northing 6594.04 +- 13.34 Latitude -30.787
Depth 5.00 +- 47.81 N
Nearest recorder = 42.5 km Gap = 176.7 deg Accuracy = C
Effects Code = Imax = 0 Fault =
3 km W (260 deg) of CAR
WESTERN AUSTRALIA
175 km NE ( 43 deg) of PERTH
4 km SW (238 deg) of Cadoux
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
PHASE INFORMATION
DATA USED
BAL i-P 33.30 0.10 1.35 33.55 -0.25 42.5 297 7.1 7.1
BAL e S 38.10 0.20 0.74 38.66 -0.56 42.5 297 7.1 7.1
KLB e P 44.30 0.10 0.88 44.40 -0.10 109.2 145 2.8 2.8
KLB e S 56.40 0.20 0.69 57.46 -1.06 109.2 145 2.8 2.8
MRWA P 58.50 1.00 0.75 57.59 0.91 203.8 328 -40.9 40.9
MRWA S 80.50 1.00 0.67 80.94 -0.44 203.8 328 -39.8 39.8
MUN w PN 52.00 0.50 0.44 51.81 0.19 156.9 212 -40.9 40.9
MUN w PG 53.00 0.20 0.75 52.17 0.83 156.9 212 1.9 1.9
MUN SG 70.00 0.20 0.95 70.91 -0.91 156.9 212 1.9 1.9
Velocity Ratios
BAL KLB
BAL 1.71 1.66
0.06 0.07
KLB 1.66 1.68
0.07 0.02
Start
Date 1990-05-10
Origin Time 1357 57.93 +- 0.57
Zone 50
Easting 506.11 +- 3.42 Longitude 117.064
Northing 6492.30 +- 4.26 Latitude -31.705
Depth 7.17 +- 13.61
Nearest recorder = 67.1 km Gap = 94.0 deg Accuracy = A
Effects Code = Imax = 0 Fault =
31 km SE (113 deg) of YORK
WESTERN AUSTRALIA
118 km E ( 77 deg) of PERTH
10 km SE (148 deg) of Meckering
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
BAL e P 78.50 0.20 0.75 78.23 0.27 126.4 344 -30.8 30.8
BAL e S 92.90 0.50 0.56 92.89 0.01 126.4 344 3.4 3.4
COOL SG 168.00 1.00 0.63 168.20 -0.20 399.1 77 1.1 1.1
KLB e P 69.10 0.10 0.91 68.95 0.15 67.1 79 6.3 6.3
KLB e S 76.60 0.30 0.66 76.59 0.01 67.1 79 6.3 6.3
MRWA e P 99.00 0.30 0.64 99.36 -0.36 294.0 339 -42.2 42.2
MRWA S 135.00 0.50 0.75 130.28 4.72 294.0 339 -40.3 40.3
MUN i-P 72.10 0.10 1.28 72.09 0.01 86.5 249 4.9 4.9
MUN e S 82.00 0.50 0.58 81.91 0.09 86.5 249 4.9 4.9
NWAO e P 79.80 0.20 0.75 79.63 0.17 136.4 173 -30.8 30.8
NWAO e S 96.10 0.30 0.62 95.66 0.44 136.4 173 3.1 3.1
RKG PG 109.40 0.20 0.99 109.77 -0.37 317.7 180 1.3 1.3
RKG SG 143.00 0.30 0.82 145.71 -2.71 317.7 180 1.3 1.3
Velocity Ratios
KLB MUN BAL NWAO
KLB 1.67 0.00 1.73 1.82
0.04 0.00 0.15 0.11
MUN 0.00 1.70 0.00 1.83
0.00 0.05 0.00 0.18
BAL 1.73 0.00 1.70 0.00
0.15 0.00 0.04 0.00
NWAO 1.82 1.83 0.00 1.75
0.11 0.18 0.00 0.03
Start
Date 1990-05-11
Origin Time 0426 44.49 +- 1.57
Zone 50
Easting 480.57 +- 16.02 Longitude 116.797
Northing 6621.27 +- 10.71 Latitude -30.541
Depth 5.04 +- 29.17
Nearest recorder = 11.4 km Gap = 102.3 deg Accuracy = B
Effects Code = Imax = 0 Fault =
11 km NE ( 49 deg) of BAL
WESTERN AUSTRALIA
180 km NE ( 30 deg) of PERTH
7 km N ( 22 deg) of Ballidu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.8
PHASE INFORMATION
DATA USED
BAL i-P 46.50 0.10 1.49 46.54 -0.04 11.4 229 25.2 25.2
COOL e P 100.70 0.20 0.67 101.20 -0.50 418.2 96 -42.2 42.2
COOL e PG 111.70 0.20 0.67 112.72 -1.02 418.2 96 0.8 0.8
COOL e S 143.30 0.20 0.61 143.40 -0.10 418.2 96 -40.3 40.3
COOL e SG 159.50 1.00 0.44 160.03 -0.53 418.2 96 0.8 0.8
KLB e PG 68.50 0.20 0.74 68.70 -0.20 148.3 142 2.1 2.1
KLB e SG 85.00 1.00 0.48 85.49 -0.49 148.3 142 2.1 2.1
MEKA P 108.00 2.00 0.60 107.08 0.92 466.9 21 -42.2 42.2
MEKA S 155.00 0.30 0.79 153.65 1.35 466.9 21 -40.3 40.3
MRWA i-P 71.00 0.10 1.21 70.48 0.52 165.8 332 -30.8 30.8
MRWA S 89.00 1.00 0.68 90.07 -1.07 165.8 332 -23.9 23.9
MUN e P 71.50 0.20 0.73 70.92 0.58 168.9 199 -30.8 30.8
MUN i SG 91.10 0.20 0.94 91.17 -0.07 168.9 199 1.8 1.8
NWAO e S 117.00 0.20 0.63 111.66 5.34 267.7 171 -40.3 40.3
NWAO e SG 117.00 0.20 0.63 118.44 -1.44 267.7 171 1.1 1.1
RKG i SG 166.50 0.20 0.86 168.00 -1.50 447.1 177 0.7 0.7
NO VELOCITY RATIOS
Start
Date 1990-05-12
Origin Time 1539 30.70 +- 2.88
Zone 50
Easting 509.83 +- 13.67 Longitude 117.103
Northing 6594.81 +- 9.21 Latitude -30.780
Depth 5.00 +- 169.83 N
Nearest recorder = 42.5 km Gap = 208.7 deg Accuracy = B
Effects Code = Imax = 0 Fault =
3 km W (272 deg) of CAR
WESTERN AUSTRALIA
176 km NE ( 43 deg) of PERTH
3 km SW (248 deg) of Cadoux
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.9
PHASE INFORMATION
DATA USED
BAL i P 37.70 0.10 1.35 37.68 0.02 42.5 296 7.1 7.1
BAL e S 42.60 0.30 0.68 42.53 0.07 42.5 296 7.1 7.1
KLB e P 48.80 0.20 0.76 48.60 0.20 109.6 145 2.8 2.8
KLB e S 61.00 0.30 0.63 61.02 -0.02 109.6 145 2.8 2.8
MRWA P 62.70 0.50 0.86 61.40 1.30 203.3 328 -42.2 42.2
MRWA S 85.80 0.50 0.77 84.34 1.46 203.3 328 -40.3 40.3
MUN i PG 56.20 0.10 1.21 56.44 -0.24 157.8 212 1.9 1.9
MUN i P 56.20 0.10 1.21 55.57 0.63 157.8 212 -30.8 30.8
MUN i SG 74.50 0.20 0.95 74.30 0.20 157.8 212 1.9 1.9
MUN i S 74.50 0.20 0.95 74.26 0.24 157.8 212 -23.9 23.9
NWAO i S 95.90 0.20 0.91 91.69 4.21 238.3 177 -40.3 40.3
Velocity Ratios
BAL KLB
BAL 1.70 1.66
0.07 0.10
KLB 1.66 1.67
0.10 0.04
Start
Date 1990-05-12
Origin Time 2112 45.86 +- 2.94
Zone 52
Easting 576.80 +- 8.44 Longitude 129.763
Northing 7204.55 +- 13.08 Latitude -25.273
Depth 5.00 +- 24.62 N
Nearest recorder = 328.8 km Gap = 155.4 deg Accuracy = D
Effects Code = Imax = 0 Fault =
328 km E ( 72 deg) of WARB
NORTHERN TERRITORY
128 km W (274 deg) of AYERS ROCK
82 km SE (123 deg) of DOCKER RIVER
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
FORR e P 129.30 0.20 0.65 128.71 0.59 634.4 194 -42.2 42.2
FORR e S 189.60 0.30 0.54 190.29 -0.69 634.4 194 -40.3 40.3
MBL e P 186.70 0.20 0.61 187.00 -0.30 1116.7 292 -42.2 42.2
MBL e S 292.50 0.30 0.51 291.77 0.73 1116.7 292 -40.3 40.3
MEKA e P 187.20 0.20 0.61 189.66 -2.46 1138.5 259 -42.2 42.2
MEKA e S 296.00 0.30 0.51 296.41 -0.41 1138.5 259 -40.3 40.3
MTN i-P 217.70 0.20 0.87 219.18 -1.48 1383.0 6 -42.2 42.2
MTN e S 353.00 0.50 0.46 347.80 5.20 1383.0 6 -40.3 40.3
NANU e P 232.40 0.20 0.61 232.51 -0.11 1493.2 278 -42.2 42.2
NANU e S 370.00 0.30 0.51 371.02 -1.02 1493.2 278 -40.3 40.3
WARB e P 93.20 0.20 0.69 91.75 1.45 328.8 251 -42.2 42.2
WARB e S 129.70 0.30 0.57 125.94 3.76 328.8 251 -40.3 40.3
WARB e SG 135.50 0.30 0.57 136.70 -1.20 328.8 251 1.0 1.0
WB5 e P 144.00 0.50 0.53 144.25 -0.25 763.0 39 -42.2 42.2
WB5 e S 221.80 0.20 0.57 217.34 4.46 763.0 39 -40.3 40.3
WRA i-P 143.00 0.20 0.91 143.34 -0.34 755.5 39 -42.2 42.2
Velocity Ratios
FORR MBL NANU
FORR 1.72 1.79 1.75
0.01 0.02 0.01
MBL 1.79 1.75 1.70
0.02 0.00 0.03
NANU 1.75 1.70 1.74
0.01 0.03 0.00
Start
Date 1990-05-14
Origin Time 1700 43.00 +- 72.96
Zone 52
Easting 466.77 +- 651.10 Longitude 128.671
Northing 7233.93 +- 617.44 Latitude -25.010
Depth 5.00 +- 652.99 N
Nearest recorder = 241.6 km Gap = 170.0 deg Accuracy = D
Effects Code = Imax = 0 Fault =
241 km NE ( 57 deg) of WARB
WESTERN AUSTRALIA
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
FORR P 128.00 2.00 0.43 127.03 0.97 644.1 185 -42.2 42.2
WARB i-P 78.20 0.10 1.17 78.36 -0.16 241.6 236 -42.2 42.2
WARB e SG 110.00 0.30 0.59 109.77 0.23 241.6 236 1.3 1.3
WARB e S 110.00 0.30 0.59 104.74 5.26 241.6 236 -40.3 40.3
WB5 e P 147.10 0.10 0.72 147.92 -0.82 817.0 46 -42.2 42.2
WB5 e S 227.60 0.50 0.47 225.86 1.74 817.0 46 -40.3 40.3
Velocity Ratios
WB5
WB5 1.77
0.01
Start
Date 1990-05-14
Origin Time 2108 38.06 +- 17.44
Zone 52
Easting 568.32 +- 61.30 Longitude 129.678
Northing 7206.10 +- 95.94 Latitude -25.260
Depth 5.00 +- 174.24 N
Nearest recorder = 321.3 km Gap = 154.3 deg Accuracy = C
Effects Code = Imax = 0 Fault =
321 km E ( 72 deg) of WARB
NORTHERN TERRITORY
136 km W (274 deg) of AYERS ROCK
74 km SE (126 deg) of DOCKER RIVER
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
FORR e P 120.30 0.20 0.65 120.83 -0.53 633.7 194 -42.2 42.2
FORR PG 141.20 0.30 0.85 141.44 -0.24 633.7 194 0.5 0.5
FORR e S 184.80 0.20 0.58 182.35 2.45 633.7 194 -40.3 40.3
MBL e P 176.00 0.50 0.51 178.18 -2.18 1108.3 292 -42.2 42.2
MBL e S 281.00 0.50 0.46 282.20 -1.20 1108.3 292 -40.3 40.3
NANU e P 221.00 0.50 0.51 223.67 -2.67 1484.6 278 -42.2 42.2
WARB i-P 84.30 0.10 1.13 83.04 1.26 321.3 250 -42.2 42.2
WARB e S 122.90 0.30 0.57 116.56 6.34 321.3 250 -40.3 40.3
WARB SG 122.90 0.30 0.82 126.82 -3.92 321.3 250 1.0 1.0
WB5 e P 135.30 0.10 0.73 136.96 -1.66 767.3 39 -42.2 42.2
WB5 S 212.20 0.50 0.68 210.44 1.76 767.3 39 -40.3 40.3
Velocity Ratios
WB5
WB5 1.79
0.01
Start
Date 1990-05-15
Origin Time 0018 12.13 +- 26.00
Zone 51
Easting 406.61 +- 91.40 Longitude 122.117
Northing 7997.87 +- 480.64 Latitude -18.106
Depth 5.00 +- 546.39 N
Nearest recorder = 414.4 km Gap = 280.1 deg Accuracy = C
Effects Code = Imax = 0 Fault =
414 km NE ( 35 deg) of MBL
WESTERN AUSTRALIA
19 km SW (218 deg) of BROOME
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.2
PHASE INFORMATION
DATA USED
MBL e P 69.30 0.20 0.67 68.35 0.95 414.4 214 -42.2 42.2
MBL e S 110.70 0.30 0.56 110.19 0.51 414.4 214 -40.3 40.3
NANU w P 119.00 1.00 0.46 120.98 -1.98 849.8 233 -42.2 42.2
NANU e S 201.00 0.30 0.52 201.82 -0.82 849.8 233 -40.3 40.3
WARB w P 141.00 1.00 0.46 140.24 0.76 1008.8 153 -42.2 42.2
WARB e S 234.00 1.00 0.40 235.36 -1.36 1008.8 153 -40.3 40.3
Velocity Ratios
MBL NANU WARB
MBL 1.72 1.82 1.72
0.01 0.06 0.05
NANU 1.82 1.77 0.00
0.06 0.02 0.00
WARB 1.72 0.00 1.72
0.05 0.00 0.02
Start
Date 1990-05-23
Origin Time 0724 27.57 +- 1.24
Zone 50
Easting 478.67 +- 11.72 Longitude 116.778
Northing 6621.90 +- 7.81 Latitude -30.535
Depth 5.00 +- 12.84 N
Nearest recorder = 10.5 km Gap = 169.2 deg Accuracy = B
Effects Code = Imax = 0 Fault =
10 km NE ( 40 deg) of BAL
WESTERN AUSTRALIA
180 km NE ( 30 deg) of PERTH
7 km N ( 6 deg) of Ballidu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.1
PHASE INFORMATION
DATA USED
BAL i-P 29.40 0.10 1.50 29.49 -0.09 10.5 220 26.9 26.9
KLB e P 51.50 0.20 0.74 51.36 0.14 150.0 141 -30.8 30.8
KLB e S 68.70 0.20 0.67 69.03 -0.33 150.0 141 2.0 2.0
MRWA e P 53.90 0.10 0.84 53.37 0.53 164.3 332 -30.8 30.8
MRWA e S 72.00 0.30 0.61 72.79 -0.79 164.3 332 -23.9 23.9
MUN e P 54.30 0.20 0.73 54.01 0.29 168.9 198 -30.8 30.8
MUN e S 74.00 0.20 0.66 73.95 0.05 168.9 198 -23.9 23.9
Velocity Ratios
KLB MRWA MUN
KLB 1.72 0.00 0.00
0.02 0.00 0.00
MRWA 0.00 1.69 0.00
0.00 0.02 0.00
MUN 0.00 0.00 1.74
0.00 0.00 0.02
Start
Date 1990-05-23
Origin Time 2333 17.08 +- 1.61
Zone 50
Easting 478.43 +- 14.91 Longitude 116.775
Northing 6620.10 +- 13.73 Latitude -30.551
Depth 5.00 +- 14.67 N
Nearest recorder = 9.0 km Gap = 168.3 deg Accuracy = B
Effects Code = Imax = 0 Fault =
8 km NE ( 46 deg) of BAL
WESTERN AUSTRALIA
178 km NE ( 30 deg) of PERTH
5 km N ( 5 deg) of Ballidu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.2
PHASE INFORMATION
DATA USED
BAL i-P 18.80 0.10 1.51 18.78 0.02 9.0 226 30.5 30.5
KLB e P 41.00 0.20 0.74 40.69 0.31 148.7 141 -30.8 30.8
KLB e S 58.00 0.20 0.67 58.19 -0.19 148.7 141 2.0 2.0
MRWA w P 43.00 0.50 0.62 43.08 -0.08 165.8 332 -30.8 30.8
MUN e P 43.00 0.20 0.73 43.26 -0.26 167.1 198 -30.8 30.8
MUN e S 63.10 0.20 0.66 63.00 0.10 167.1 198 -23.9 23.9
RKG SG 138.00 0.50 0.61 140.29 -2.29 446.0 177 0.7 0.7
Velocity Ratios
KLB MUN
KLB 1.71 0.00
0.02 0.00
MUN 0.00 1.78
0.00 0.02
Start
Date 1990-05-25
Origin Time 0814 15.26 +- 0.00
Zone 50
Easting 741.82 +- 0.00 Longitude 119.343
Northing 7560.20 +- 0.00 Latitude -22.046
Depth 5.00 +- 0.00 N
Nearest recorder = 110.5 km Gap = 234.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
106 km S (202 deg) of MBWA
WESTERN AUSTRALIA
209 km SE (158 deg) of PORT HEDLAND
106 km SW (203 deg) of Marble Bar
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.9
PHASE INFORMATION
DATA USED
MBL e P 32.70 0.10 0.87 33.31 -0.61 110.5 27 2.7 2.7
MBL e S 46.40 0.20 0.69 45.83 0.57 110.5 27 2.7 2.7
MEKA P 80.00 0.10 1.09 83.40 -3.40 512.7 189 -42.2 42.2
NANU e P 70.50 0.30 0.62 69.69 0.81 399.7 261 -42.2 42.2
NANU S 109.00 1.00 0.63 110.21 -1.21 399.7 261 -40.3 40.3
Velocity Ratios
MBL NANU
MBL 1.79 1.66
0.02 0.05
NANU 1.66 1.70
0.05 0.03
Start
Date 1990-05-28
Origin Time 0823 38.07 +- 3.33
Zone 50
Easting 187.80 +- 40.62 Longitude 113.839
Northing 6948.80 +- 13.37 Latitude -27.549
Depth 5.00 +- 63.73 N
Nearest recorder = 439.1 km Gap = 246.1 deg Accuracy = C
Effects Code = Imax = 0 Fault =
155 km S (196 deg) of LP01
WESTERN AUSTRALIA
525 km NW (338 deg) of PERTH
156 km NW (330 deg) of GERALDTON
39 km NW (295 deg) of Kalbarri
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.9
PHASE INFORMATION
DATA USED
BAL e P 97.70 0.20 0.67 97.28 0.42 439.1 141 -42.2 42.2
BAL e S 142.60 0.50 0.50 141.35 1.25 439.1 141 -40.3 40.3
COOL e P 140.80 0.20 0.63 141.02 -0.22 800.7 119 -42.2 42.2
COOL e S 217.00 0.20 0.57 217.50 -0.50 800.7 119 -40.3 40.3
FORR e P 216.00 0.20 0.61 217.57 -1.57 1433.7 108 -42.2 42.2
FORR e S 352.00 0.50 0.46 350.78 1.22 1433.7 108 -40.3 40.3
KLB e S 172.00 0.30 0.54 172.57 -0.57 587.4 140 -40.3 40.3
MBL e P 156.30 0.20 0.62 156.96 -0.66 932.8 41 -42.2 42.2
MBL S 240.50 0.30 0.74 245.25 -4.75 932.8 41 -40.3 40.3
MEKA e P 102.00 0.20 0.67 101.88 0.12 476.9 78 -42.2 42.2
MEKA S 150.00 1.00 0.62 149.34 0.66 476.9 78 -40.3 40.3
MUN e P 110.10 0.20 0.66 109.70 0.40 541.9 155 -42.2 42.2
MUN e S 163.00 0.20 0.59 162.97 0.03 541.9 155 -40.3 40.3
NANU e P 112.00 0.50 0.54 114.20 -2.20 579.2 17 -42.2 42.2
NANU e S 175.00 0.50 0.49 170.80 4.20 579.2 17 -40.3 40.3
WARB e P 199.00 0.30 0.56 199.47 -0.47 1284.1 86 -42.2 42.2
WARB e S 349.00 0.50 0.46 319.26 29.74 1284.1 86 -40.3 40.3
Velocity Ratios
MEKA MUN COOL
MEKA 1.75 0.00 1.73
0.02 0.00 0.05
MUN 0.00 1.73 1.76
0.00 0.01 0.04
COOL 1.73 1.76 1.74
0.05 0.04 0.01
Start
Date 1990-05-29
Origin Time 0127 4.48 +- 4.02
Zone 50
Easting 493.72 +- 25.10 Longitude 116.933
Northing 6418.79 +- 27.07 Latitude -32.368
Depth 5.00 +- 65.96 N
Nearest recorder = 80.8 km Gap = 136.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
16 km N (339 deg) of PING
WESTERN AUSTRALIA
112 km SE (115 deg) of PERTH
7 km SW (244 deg) of Brookton
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
PHASE INFORMATION
DATA USED
BAL w P 34.00 0.50 0.61 34.35 -0.35 196.4 353 -42.2 42.2
BAL e S 56.80 0.20 0.65 56.66 0.14 196.4 353 -40.3 40.3
KLB e P 23.30 0.10 0.87 23.46 -0.16 116.2 42 2.6 2.6
KLB e S 36.70 0.20 0.68 36.61 0.09 116.2 42 2.6 2.6
MUN e P 17.80 0.10 0.90 17.70 0.10 80.8 302 3.7 3.7
MUN e S 26.70 0.20 0.70 26.86 -0.16 80.8 302 3.7 3.7
RKG SG 72.00 2.00 0.58 71.97 0.03 244.2 178 1.2 1.2
Velocity Ratios
MUN KLB
MUN 1.67 1.82
0.03 0.14
KLB 1.82 1.71
0.14 0.02
Start
Date 1990-05-30
Origin Time 1943 47.07 +- 1.18
Zone 50
Easting 481.38 +- 8.15 Longitude 116.806
Northing 6622.05 +- 7.44 Latitude -30.534
Depth 2.77 +- 16.19
Nearest recorder = 12.5 km Gap = 124.8 deg Accuracy = A
Effects Code = Imax = 0 Fault =
12 km W (289 deg) of PIG
WESTERN AUSTRALIA
182 km NE ( 30 deg) of PERTH
8 km NE ( 25 deg) of Ballidu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 3.2
PHASE INFORMATION
DATA USED
BAL i-P 49.10 0.05 1.70 49.17 -0.07 12.5 229 13.8 13.8
COOL e P 103.30 0.20 0.67 103.94 -0.64 417.5 96 -42.2 42.2
COOL PG 114.70 0.20 0.96 115.18 -0.48 417.5 96 0.4 0.4
COOL e S 146.10 0.20 0.61 146.24 -0.14 417.5 96 -40.3 40.3
COOL e SG 162.10 0.20 0.61 162.41 -0.31 417.5 96 0.4 0.4
FORR e P 183.50 0.30 0.56 184.49 -0.99 1083.7 94 -42.2 42.2
FORR S 286.00 0.30 0.72 286.49 -0.49 1083.7 94 -40.3 40.3
FORR SG 347.00 1.00 0.57 346.43 0.57 1083.7 94 0.2 0.2
KLB i+P 71.20 0.10 1.22 70.83 0.37 148.4 142 -30.8 30.8
KLB e S 87.90 0.20 0.67 88.09 -0.19 148.4 142 1.2 1.2
MBL P 183.30 1.00 0.50 184.22 -0.92 1081.7 16 -42.2 42.2
MBL S 286.00 1.00 0.45 286.01 -0.01 1081.7 16 -40.3 40.3
MEKA w P 112.30 2.00 0.45 109.79 2.51 465.9 21 -42.2 42.2
MEKA S 159.00 1.00 0.49 156.42 2.58 465.9 21 -40.3 40.3
MRWA i+P 73.30 0.20 1.05 73.21 0.09 165.4 331 -30.8 30.8
MUN i PG 74.90 0.10 1.20 74.79 0.11 169.9 199 1.0 1.0
MUN e S 93.80 0.20 0.66 93.95 -0.15 169.9 199 -23.9 23.9
NANU e P 163.20 0.20 0.62 161.55 1.65 894.4 351 -42.2 42.2
NANU e S 247.00 0.50 0.47 246.55 0.45 894.4 351 -40.3 40.3
RKG w P 107.00 2.00 0.43 107.58 -0.58 447.8 177 -42.2 42.2
RKG e S 151.00 0.50 0.50 152.58 -1.58 447.8 177 -40.3 40.3
WARB e P 183.80 0.30 0.50 184.18 -0.38 1081.2 65 -42.2 42.2
WARB S 288.00 1.00 0.45 285.94 2.06 1081.2 65 -40.3 40.3
Velocity Ratios
KLB COOL
KLB 1.69 1.81
0.02 0.03
COOL 1.81 1.76
0.03 0.01
Start
Date 1990-05-30
Origin Time 2112 7.27 +- 18.07
Zone 50
Easting 479.56 +- 186.39 Longitude 116.787
Northing 6622.20 +- 276.64 Latitude -30.532
Depth 5.00 +- 513.12 N
Nearest recorder = 11.3 km Gap = 169.8 deg Accuracy = C
Effects Code = Imax = 0 Fault =
11 km NE ( 43 deg) of BAL
WESTERN AUSTRALIA
181 km NE ( 30 deg) of PERTH
8 km N ( 12 deg) of Ballidu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
PHASE INFORMATION
DATA USED
BAL i-P 9.25 0.10 1.49 9.30 -0.05 11.3 222 25.2 25.2
BAL i S 10.75 0.10 1.34 10.71 0.04 11.3 222 25.2 25.2
KLB e PG 31.80 0.20 0.74 31.70 0.10 149.7 142 2.0 2.0
KLB e S 48.60 0.10 0.77 48.64 -0.04 149.7 142 2.0 2.0
MRWA P 33.10 0.20 1.05 33.09 0.01 164.5 332 -30.8 30.8
MRWA S 51.70 0.30 0.87 52.53 -0.83 164.5 332 -23.9 23.9
Velocity Ratios
BAL
BAL 1.76
0.15
Start
Date 1990-05-30
Origin Time 2145 7.01 +- 1.81
Zone 50
Easting 479.86 +- 18.11 Longitude 116.790
Northing 6621.34 +- 19.76 Latitude -30.540
Depth 5.00 +- 33.57 N
Nearest recorder = 10.9 km Gap = 124.1 deg Accuracy = B
Effects Code = Imax = 0 Fault =
10 km NE ( 47 deg) of BAL
WESTERN AUSTRALIA
180 km NE ( 30 deg) of PERTH
7 km N ( 16 deg) of Ballidu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
PHASE INFORMATION
DATA USED
BAL i-P 8.90 0.10 1.49 8.98 -0.08 10.9 227 26.0 26.0
BAL e S 10.40 0.20 0.82 10.35 0.05 10.9 227 26.0 26.0
COOL e S 105.60 0.30 0.56 106.08 -0.48 419.0 96 -40.3 40.3
COOL SMS 117.10 0.30 0.44 117.01 0.09 419.0 96 -24.6 24.6
KLB e P 31.20 0.20 0.74 30.64 0.56 148.8 141 -30.8 30.8
KLB e S 48.00 0.20 0.67 48.14 -0.14 148.8 141 2.0 2.0
MRWA P 33.00 0.50 0.87 32.95 0.05 165.4 332 -30.8 30.8
MRWA S 51.50 1.00 0.69 52.49 -0.99 165.4 332 -23.9 23.9
RKG SG 129.00 1.00 0.62 130.55 -1.55 447.2 177 0.7 0.7
Velocity Ratios
BAL KLB
BAL 1.79 1.69
0.21 0.04
KLB 1.69 1.69
0.04 0.02
Start
Date 1990-07-08
Origin Time 1100 37.60 +- 8.10
Zone 51
Easting 337.01 +- 30.38 Longitude 121.453
Northing 7911.11 +- 57.78 Latitude -18.886
Depth 27.79 +- 81.87
Nearest recorder = 303.6 km Gap = 191.3 deg Accuracy = C
Effects Code = Imax = 0 Fault =
303 km NE ( 34 deg) of MBL
WESTERN AUSTRALIA
130 km SW (219 deg) of BROOME
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.8
PHASE INFORMATION
DATA USED
KNA e P 166.00 1.00 0.45 144.58 21.42 852.0 66 -30.3 42.2
KNA e S 224.00 1.00 0.41 224.06 -0.06 852.0 66 -33.5 40.3
MBL e P 78.30 0.30 0.64 78.26 0.04 303.6 213 -30.3 42.2
MBL e S 108.40 0.30 0.58 108.60 -0.20 303.6 213 -33.5 40.3
NANU e P 131.00 0.20 0.64 131.33 -0.33 742.5 235 -30.3 42.2
NANU e S 201.00 0.50 0.48 200.99 0.01 742.5 235 -33.5 40.3
WARB e P 158.80 0.30 0.57 158.67 0.13 968.3 147 -30.3 42.2
WARB w S 252.00 2.00 0.36 248.60 3.40 968.3 147 -33.5 40.3
Velocity Ratios
MBL NANU
MBL 1.74 1.76
0.02 0.03
NANU 1.76 1.75
0.03 0.01
Start
Date 1990-07-09
Origin Time 0917 2.07 +- 0.72
Zone 50
Easting 505.63 +- 8.12 Longitude 117.059
Northing 6585.25 +- 5.54 Latitude -30.866
Depth 1.00 +- 14.37 C
Nearest recorder = 44.3 km Gap = 170.1 deg Accuracy = A
Effects Code = Imax = 0 Fault =
12 km SW (221 deg) of CA1
WESTERN AUSTRALIA
166 km NE ( 44 deg) of PERTH
4 km SW (246 deg) of Manmanning
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
PHASE INFORMATION
DATA USED
BAL i-P 9.20 0.10 1.35 9.29 -0.09 44.3 310 1.7 1.7
BAL i S 14.30 0.10 1.21 14.31 -0.01 44.3 310 1.7 1.7
KLB e P 19.30 0.20 0.77 19.12 0.18 104.5 140 0.7 0.7
KLB e S 30.70 0.30 0.63 30.95 -0.25 104.5 140 0.7 0.7
MRWA e P 35.00 0.50 0.60 33.94 1.06 209.4 330 -42.2 42.2
MRWA e S 58.00 0.30 0.60 57.70 0.30 209.4 330 -40.3 40.3
MUN e P 26.00 0.50 0.62 25.83 0.17 147.4 212 -30.8 30.8
MUN e S 42.80 0.20 0.67 42.80 0.00 147.4 212 0.5 0.5
Velocity Ratios
BAL KLB MUN
BAL 1.71 1.62 1.70
0.04 0.09 0.08
KLB 1.62 1.66 0.00
0.09 0.04 0.00
MUN 1.70 0.00 1.70
0.08 0.00 0.04
Start
Date 1990-07-10
Origin Time 1445 47.15 +- 0.00
Zone 52
Easting 246.38 +- 0.00 Longitude 126.545
Northing 7575.51 +- 0.00 Latitude -21.906
Depth 5.00 +- 0.00 N
Nearest recorder = 474.0 km Gap = 263.2 deg Accuracy = C
Effects Code = Imax = 0 Fault =
468 km N (359 deg) of WBN
WESTERN AUSTRALIA
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.4
PHASE INFORMATION
DATA USED
KLB e S 30.00 0.20 0.69 350.74-320.74 1390.6 217 -40.3 40.3
MBL w P 140.00 2.00 0.41 138.31 1.69 703.4 275 -42.2 42.2
MBL e S 205.00 1.00 0.42 206.05 -1.05 703.4 275 -40.3 40.3
MUN e P 25.00 0.10 0.85 237.72-212.72 1525.4 220 -42.2 42.2
WARB e P 110.40 0.20 0.67 110.61 -0.21 474.0 178 -42.2 42.2
WARB e S 158.00 0.50 0.50 157.81 0.19 474.0 178 -40.3 40.3
Velocity Ratios
WARB MBL
WARB 1.75 1.59
0.01 0.18
MBL 1.59 1.70
0.18 0.05
Start
Date 1990-07-11
Origin Time 1855 1.40 +- 0.66
Zone 50
Easting 507.37 +- 4.23 Longitude 117.077
Northing 6584.73 +- 3.75 Latitude -30.871
Depth 1.42 +- 10.24
Nearest recorder = 46.0 km Gap = 121.0 deg Accuracy = A
Effects Code = Imax = 0 Fault =
11 km SW (213 deg) of CA1
WESTERN AUSTRALIA
167 km NE ( 45 deg) of PERTH
3 km SW (224 deg) of Manmanning
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.3
PHASE INFORMATION
DATA USED
BAL S-P 5.10 0.10 1.34 5.20 -0.10 46.0 309 0.0 0.0
BAL e P 8.80 0.10 0.94 8.90 -0.10 46.0 309 2.1 2.1
BAL e S 13.90 0.10 0.85 14.10 -0.20 46.0 309 2.1 2.1
COOL w P 55.00 1.00 0.50 54.98 0.02 389.1 91 -42.2 42.2
COOL e S 94.00 0.30 0.56 94.83 -0.83 389.1 91 -40.3 40.3
KLB e P 18.30 0.10 0.88 18.21 0.09 103.0 141 1.0 1.0
KLB e S 30.00 0.20 0.69 29.87 0.13 103.0 141 1.0 1.0
MRWA e P 34.30 0.20 0.72 33.39 0.91 210.7 330 -42.2 42.2
MRWA e S 57.30 0.20 0.65 57.24 0.06 210.7 330 -40.3 40.3
MUN e P 25.00 0.10 0.85 25.20 -0.20 148.0 213 -30.8 30.8
MUN e S 42.30 0.20 0.67 42.27 0.03 148.0 213 0.6 0.6
Velocity Ratios
BAL KLB MUN MRWA COOL
BAL 1.69 1.69 1.75 1.70 1.73
0.04 0.07 0.04 0.03 0.05
KLB 1.69 1.69 1.84 1.71 1.74
0.07 0.02 0.12 0.06 0.07
MUN 1.75 1.84 1.73 1.61 1.72
0.04 0.12 0.02 0.10 0.08
MRWA 1.70 1.71 1.61 1.70 1.77
0.03 0.06 0.10 0.02 0.13
COOL 1.73 1.74 1.72 1.77 1.73
0.05 0.07 0.08 0.13 0.04
Start
Date 1990-07-13
Origin Time 1818 25.41 +- 9.89
Zone 50
Easting 428.12 +- 78.19 Longitude 116.318
Northing 7915.26 +- 52.95 Latitude -18.853
Depth 5.00 +- 84.33 N
Nearest recorder = 417.4 km Gap = 297.9 deg Accuracy = D
Effects Code = Imax = 0 Fault =
264 km NW (328 deg) of RP01
WESTERN AUSTRALIA
286 km NW (304 deg) of PORT HEDLAND
203 km N (348 deg) of Dampier
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.0
PHASE INFORMATION
DATA USED
COOL e S 332.00 0.50 0.46 334.98 -2.98 1418.8 160 -40.3 40.3
MEKA e S 226.00 1.00 0.41 223.40 2.60 888.8 165 -40.3 40.3
MEKA e SG 272.00 2.00 0.35 270.94 1.06 888.8 165 0.4 0.4
MRWA e S 286.30 0.50 0.46 277.95 8.35 1148.1 181 -40.3 40.3
NANU S-P 42.20 0.30 0.89 42.10 0.10 417.4 191 0.0 0.0
NANU i+P 82.10 0.10 1.11 81.98 0.12 417.4 191 -42.2 42.2
NANU e S 124.30 0.30 0.56 124.08 0.22 417.4 191 -40.3 40.3
WARB S-P 113.00 0.10 1.00 124.82 -11.82 1340.2 129 0.0 0.0
WARB e P 194.00 0.50 0.51 193.60 0.40 1340.2 129 -42.2 42.2
WARB e S 307.00 0.50 0.46 318.41 -11.41 1340.2 129 -40.3 40.3
Velocity Ratios
NANU
NANU 1.74
0.01
Start
Date 1990-07-17
Origin Time 0513 0.66 +- 0.97
Zone 51
Easting 354.24 +- 5.03 Longitude 121.477
Northing 6594.98 +- 10.32 Latitude -30.769
Depth 1.00 +- 9.37 C
Nearest recorder = 34.2 km Gap = 156.1 deg Accuracy = B
Effects Code = F Imax = 4 Fault =
1 km SE (149 deg) of KLCH
WESTERN AUSTRALIA
551 km E ( 78 deg) of PERTH
37 km NE ( 57 deg) of Coolgardie
2 km S (163 deg) of KALGOORLIE
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.2
PHASE INFORMATION
DATA USED
BAL e P 62.00 0.50 0.56 62.61 -0.61 458.1 271 -42.2 42.2
BAL e PG 77.00 0.50 0.56 75.39 1.61 458.1 271 0.2 0.2
BAL e S 108.50 0.20 0.60 108.65 -0.15 458.1 271 -40.3 40.3
BAL e SG 126.50 0.30 0.55 127.21 -0.71 458.1 271 0.2 0.2
COOL S-P 4.50 0.50 1.00 3.87 0.63 34.2 248 0.0 0.0
COOL i-P 6.60 0.05 1.58 6.24 0.36 34.2 248 2.5 2.5
COOL e S 11.10 0.50 0.63 10.12 0.98 34.2 248 2.5 2.5
FORR e S 146.00 0.50 0.48 145.09 0.91 631.0 91 -40.3 40.3
FORR e SG 172.00 0.50 0.48 174.96 -2.96 631.0 91 0.1 0.1
KLB e P 51.30 0.10 0.78 51.50 -0.20 366.2 254 -42.2 42.2
KLB e PG 60.20 0.20 0.68 60.40 -0.20 366.2 254 0.2 0.2
KLB e S 90.50 0.50 0.51 89.31 1.19 366.2 254 -40.3 40.3
KLB e SG 100.20 0.10 0.71 101.83 -1.63 366.2 254 0.2 0.2
MBL w P 137.00 2.00 0.39 137.51 -0.51 1077.6 350 -42.2 42.2
MBL e S 240.00 1.00 0.40 239.05 0.95 1077.6 350 -40.3 40.3
MBL e SG 296.00 0.50 0.46 298.33 -2.33 1077.6 350 0.1 0.1
MEKA e PG 85.00 0.50 0.55 89.28 -4.28 543.2 327 0.2 0.2
MEKA e SG 150.00 1.00 0.43 150.73 -0.73 543.2 327 0.2 0.2
MRWA e P 74.00 0.20 0.65 74.59 -0.59 557.2 286 -42.2 42.2
MRWA i S 129.80 0.20 0.84 129.51 0.29 557.2 286 -40.3 40.3
MUN e P 70.30 0.20 0.66 70.05 0.25 519.7 253 -42.2 42.2
MUN PG 82.00 1.00 0.68 85.44 -3.44 519.7 253 0.1 0.1
MUN e S 120.50 0.50 0.49 121.61 -1.11 519.7 253 -40.3 40.3
MUN e SG 143.00 0.50 0.49 144.22 -1.22 519.7 253 0.1 0.1
NANU e P 126.00 2.00 0.39 139.07 -13.07 1090.6 325 -42.2 42.2
NANU e S 238.00 0.50 0.46 241.78 -3.78 1090.6 325 -40.3 40.3
NANU e SG 300.00 0.50 0.46 301.94 -1.94 1090.6 325 0.1 0.1
WARB e P 94.60 0.20 0.64 93.92 0.68 716.9 45 -42.2 42.2
WARB e S 165.00 0.50 0.48 163.16 1.84 716.9 45 -40.3 40.3
Velocity Ratios
COOL KLB BAL MUN MRWA WARB MBL
COOL 1.76 1.78 1.76 1.72 1.76 1.75 1.76
0.10 0.03 0.03 0.02 0.02 0.02 0.04
KLB 1.78 1.77 1.68 1.58 1.73 1.72 1.74
0.03 0.01 0.17 0.08 0.05 0.04 0.06
BAL 1.76 1.68 1.76 0.00 1.78 1.73 1.75
0.03 0.17 0.02 0.00 0.15 0.06 0.08
MUN 1.72 1.58 0.00 1.72 0.00 1.83 1.79
0.02 0.08 0.00 0.01 0.00 0.07 0.08
MRWA 1.76 1.73 1.78 0.00 1.76 1.71 1.75
0.02 0.05 0.15 0.00 0.01 0.07 0.08
WARB 1.75 1.72 1.73 1.83 1.71 1.75 1.77
0.02 0.04 0.06 0.07 0.07 0.01 0.13
MBL 1.76 1.74 1.75 1.79 1.75 1.77 1.76
0.04 0.06 0.08 0.08 0.08 0.13 0.03
Start
Date 1990-07-18
Origin Time 0332 12.76 +- 4.42
Zone 50
Easting 277.03 +- 17.30 Longitude 114.700
Northing 6736.42 +- 11.07 Latitude -29.482
Depth 5.00 +- 24.52 N
Nearest recorder = 129.2 km Gap = 213.1 deg Accuracy = C
Effects Code = Imax = 0 Fault =
129 km W (256 deg) of MRWA
WESTERN AUSTRALIA
295 km NW (338 deg) of PERTH
79 km S (174 deg) of GERALDTON
34 km SW (221 deg) of Dongara
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.3
PHASE INFORMATION
DATA USED
BAL e P 48.30 0.20 0.71 46.71 1.59 230.2 123 -42.2 42.2
BAL e S 73.00 0.20 0.64 72.05 0.95 230.2 123 -40.3 40.3
KLB e PG 75.00 1.00 0.49 73.98 1.02 375.3 129 0.8 0.8
KLB e SG 115.00 0.20 0.61 116.43 -1.43 375.3 129 0.8 0.8
MEKA e S 127.00 1.00 0.43 127.36 -0.36 492.7 50 -40.3 40.3
MEKA e SG 145.00 1.00 0.43 148.87 -3.87 492.7 50 0.6 0.6
MRWA S-P 15.00 0.10 1.23 14.83 0.17 129.2 77 0.0 0.0
MRWA i+P 33.40 0.10 1.23 33.63 -0.23 129.2 77 -30.8 30.8
MRWA i S 48.40 0.10 1.11 48.47 -0.07 129.2 77 2.3 2.3
MUN e P 57.00 0.30 0.64 56.61 0.39 312.1 152 -42.2 42.2
MUN e S 87.70 0.20 0.62 89.30 -1.60 312.1 152 -40.3 40.3
NANU e PG 141.00 1.00 0.46 138.81 2.19 772.7 6 0.4 0.4
NANU e SG 225.00 0.50 0.47 226.22 -1.22 772.7 6 0.4 0.4
Velocity Ratios
MRWA BAL MUN
MRWA 1.73 1.65 1.67
0.01 0.05 0.04
BAL 1.65 1.69 1.69
0.05 0.02 0.15
MUN 1.67 1.69 1.69
0.04 0.15 0.02
Start
Date 1990-07-22
Origin Time 1824 45.86 +- 5.54
Zone 51
Easting 814.93 +- 36.37 Longitude 126.170
Northing 7020.61 +- 23.71 Latitude -26.901
Depth 5.00 +- 70.24 N
Nearest recorder = 92.4 km Gap = 126.7 deg Accuracy = C
Effects Code = Imax = 0 Fault =
92 km SW (210 deg) of WARB
WESTERN AUSTRALIA
95 km SW (205 deg) of WARBURTON
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.1
PHASE INFORMATION
DATA USED
COOL e S 197.00 1.00 0.42 199.12 -2.12 659.4 226 -39.8 39.8
COOL e SG 230.00 2.00 0.37 232.14 -2.14 659.4 226 0.5 0.5
FORR e P 111.00 0.50 0.55 109.84 1.16 470.8 157 -40.9 40.9
FORR e S 156.50 0.50 0.50 158.21 -1.71 470.8 157 -39.8 39.8
MBL w S 251.00 2.00 0.36 252.37 -1.37 905.2 313 -39.8 39.8
MRWA e S 280.00 1.00 0.40 280.19 -0.19 1033.3 253 -39.8 39.8
WARB e P 61.00 0.30 0.71 60.97 0.03 92.4 30 3.4 3.4
Velocity Ratios
FORR
FORR 1.70
0.02
Start
Date 1990-07-23
Origin Time 1253 0.96 +- 1.10
Zone 50
Easting 545.96 +- 7.20 Longitude 117.482
Northing 6548.59 +- 7.43 Latitude -31.196
Depth 1.00 +- 33.19 C
Nearest recorder = 51.2 km Gap = 134.0 deg Accuracy = A
Effects Code = Imax = 0 Fault =
26 km NW (318 deg) of KBN
WESTERN AUSTRALIA
176 km NE ( 62 deg) of PERTH
41 km S (180 deg) of Koorda
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
PHASE INFORMATION
DATA USED
BAL e P 17.10 0.20 0.77 17.07 0.03 98.8 311 0.8 0.8
BAL e S 28.20 0.20 0.69 28.25 -0.05 98.8 311 0.8 0.8
COOL e SG 98.00 2.00 0.39 98.05 -0.05 351.5 85 0.2 0.2
KLB S-P 5.80 0.20 1.16 5.79 0.01 51.2 149 0.0 0.0
KLB e P 9.30 0.20 0.81 9.31 -0.01 51.2 149 1.5 1.5
KLB e S 15.10 0.10 0.84 15.11 -0.01 51.2 149 1.5 1.5
MRWA S-P 31.00 0.50 0.84 28.45 2.55 261.7 326 0.0 0.0
MRWA e P 41.00 0.50 0.59 39.16 1.84 261.7 326 -42.2 42.2
MRWA e S 72.00 0.30 0.58 67.61 4.39 261.7 326 -40.3 40.3
MUN e P 25.00 0.10 0.85 24.91 0.09 148.8 233 -30.8 30.8
MUN e S 42.00 0.10 0.77 42.06 -0.06 148.8 233 0.5 0.5
Velocity Ratios
KLB BAL MUN
KLB 1.70 1.68 1.71
0.05 0.13 0.05
BAL 1.68 1.69 1.75
0.13 0.03 0.11
MUN 1.71 1.75 1.71
0.05 0.11 0.01
Start
Date 1990-07-26
Origin Time 0752 16.50 +- 22.03
Zone 50
Easting 569.13 +- 41.01 Longitude 117.674
Northing 7474.05 +- 60.00 Latitude -22.840
Depth 1.00 +- 165.42 C
Nearest recorder = 225.7 km Gap = 142.5 deg Accuracy = C
Effects Code = Imax = 0 Fault =
89 km NE ( 47 deg) of LP06
WESTERN AUSTRALIA
296 km S (198 deg) of PORT HEDLAND
14 km SW (225 deg) of Mt Tom Price
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
MBL e P 58.50 0.50 0.58 58.16 0.34 290.4 50 -42.2 42.2
MBL e S 89.50 0.50 0.52 89.17 0.33 290.4 50 -40.3 40.3
MRWA e P 110.00 0.50 0.53 110.85 -0.85 726.0 192 -42.2 42.2
MRWA e S 182.00 0.50 0.48 180.90 1.10 726.0 192 -40.3 40.3
NANU i+P 49.40 0.10 1.17 50.32 -0.92 225.7 277 -42.2 42.2
NANU e S 76.30 0.30 0.59 75.52 0.78 225.7 277 -40.3 40.3
Velocity Ratios
NANU MBL MRWA
NANU 1.82 1.45 1.74
0.01 0.20 0.03
MBL 1.45 1.74 1.80
0.20 0.03 0.06
MRWA 1.74 1.80 1.77
0.03 0.06 0.01
Start
Date 1990-07-31
Origin Time 1600 42.16 +- 0.92
Zone 50
Easting 546.75 +- 7.83 Longitude 117.491
Northing 6547.46 +- 6.25 Latitude -31.206
Depth 1.00 +- 28.07 C
Nearest recorder = 49.8 km Gap = 197.8 deg Accuracy = B
Effects Code = Imax = 0 Fault =
25 km NW (318 deg) of KBN
WESTERN AUSTRALIA
176 km NE ( 63 deg) of PERTH
42 km S (179 deg) of Koorda
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
PHASE INFORMATION
DATA USED
BAL i P 58.30 0.10 1.26 58.50 -0.20 100.1 311 0.7 0.7
BAL i S 70.00 0.10 1.13 69.82 0.18 100.1 311 0.7 0.7
KLB i P 50.30 0.10 1.33 50.30 0.00 49.8 149 1.5 1.5
KLB e S 56.00 0.20 0.73 55.93 0.07 49.8 149 1.5 1.5
MRWA e P 82.20 0.20 0.70 80.54 1.66 263.1 326 -42.2 42.2
MRWA e S 112.70 0.30 0.58 109.11 3.59 263.1 326 -40.3 40.3
MUN i P 66.20 0.10 1.22 66.12 0.08 148.8 234 -30.8 30.8
MUN i S 83.20 0.10 1.10 83.26 -0.06 148.8 234 0.5 0.5
Velocity Ratios
KLB BAL MUN
KLB 1.70 1.75 1.71
0.05 0.08 0.04
BAL 1.75 1.73 1.67
0.08 0.02 0.07
MUN 1.71 1.67 1.71
0.04 0.07 0.01
Start
Date 1990-08-05
Origin Time 0910 28.98 +- 20.58
Zone 51
Easting 445.49 +- 57.53 Longitude 122.443
Northing 6846.27 +- 104.75 Latitude -28.509
Depth 17.31 +- 135.24
Nearest recorder = 291.5 km Gap = 215.2 deg Accuracy = C
Effects Code = Imax = 0 Fault =
247 km N ( 20 deg) of KLKB
WESTERN AUSTRALIA
740 km NE ( 61 deg) of PERTH
14 km N ( 17 deg) of Laverton
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
COOL i-P 70.40 0.10 1.14 71.71 -1.31 291.5 205 -38.8 44.1
COOL e S 100.00 0.30 0.58 103.01 -3.01 291.5 205 -38.7 44.1
FORR e S 167.00 0.50 0.49 169.34 -2.34 601.0 116 -38.7 44.1
MEKA SG 164.00 1.00 0.62 151.06 12.94 439.7 297 0.9 23.0
MRWA e P 111.70 0.50 0.54 114.18 -2.48 634.9 261 -38.8 44.1
MRWA e PG 128.00 2.00 0.41 130.49 -2.49 634.9 261 0.6 23.0
MRWA e S 174.50 0.50 0.48 176.56 -2.06 634.9 261 -38.7 44.1
MRWA e SG 202.50 1.00 0.42 204.67 -2.17 634.9 261 0.6 23.0
Velocity Ratios
COOL MRWA
COOL 1.71 1.80
0.01 0.05
MRWA 1.80 1.76
0.05 0.02
Start
Date 1990-08-09
Origin Time 1812 48.20 +- 0.96
Zone 50
Easting 501.60 +- 5.14 Longitude 117.017
Northing 6496.74 +- 6.91 Latitude -31.664
Depth 5.71 +- 21.28
Nearest recorder = 70.9 km Gap = 100.6 deg Accuracy = A
Effects Code = Imax = 0 Fault =
25 km E (108 deg) of YORK
WESTERN AUSTRALIA
115 km E ( 74 deg) of PERTH
4 km S (170 deg) of Meckering
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.4
PHASE INFORMATION
DATA USED
0.00 0.00 0.00 1.54 -1.54 402.6 78 -40.9 40.9
BAL e PG 68.40 0.10 0.87 67.95 0.45 120.9 345 2.8 2.8
BAL e S 81.10 0.30 0.63 82.39 -1.29 120.9 345 2.8 2.8
COOL e P 103.80 0.10 0.78 103.69 0.11 402.6 78 -40.9 40.9
KLB i PG 59.70 0.10 1.30 59.81 -0.11 70.9 83 4.8 4.8
KLB S 68.00 0.30 0.94 68.31 -0.31 70.9 83 4.8 4.8
MRWA e P 90.20 0.20 0.70 89.57 0.63 288.3 339 -40.9 40.9
MRWA e S 124.50 0.10 0.72 120.79 3.71 288.3 339 -39.8 39.8
MUN i P 62.00 0.10 1.28 61.95 0.05 84.1 245 4.1 4.1
MUN i SG 71.50 0.10 1.15 72.00 -0.50 84.1 245 4.1 4.1
NWAO e P 70.50 0.20 0.75 70.67 -0.17 141.4 171 -31.2 31.2
NWAO i SG 87.40 0.10 1.10 88.17 -0.77 141.4 171 2.4 2.4
RKG e P 94.50 0.30 0.64 93.74 0.76 322.1 180 -40.9 40.9
RKG e S 134.00 0.10 0.71 128.12 5.88 322.1 180 -39.8 39.8
NO VELOCITY RATIOS
Start
Date 1990-08-11
Origin Time 1625 43.83 +- 0.95
Zone 50
Easting 536.58 +- 7.89 Longitude 117.388
Northing 6435.27 +- 5.27 Latitude -32.218
Depth 0.48 +- 17.36
Nearest recorder = 77.9 km Gap = 160.7 deg Accuracy = B
Effects Code = Imax = 0 Fault =
34 km W (255 deg) of COR1
WESTERN AUSTRALIA
148 km E (102 deg) of PERTH
39 km E ( 70 deg) of Brookton
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.3
PHASE INFORMATION
DATA USED
BAL e P 74.00 0.20 0.73 73.53 0.47 190.0 339 -31.2 31.2
BAL e S 95.50 0.30 0.60 95.79 -0.29 190.0 339 -29.6 29.6
BAL e SG 97.00 0.50 0.54 97.51 -0.51 190.0 339 0.2 0.2
KLB i P 56.50 0.10 1.29 56.53 -0.03 77.9 26 0.6 0.6
KLB i S 65.50 0.20 1.01 65.83 -0.33 77.9 26 0.6 0.6
MRWA e P 93.60 0.10 0.79 94.39 -0.79 358.2 337 -40.9 40.9
MRWA e S 131.00 0.50 0.51 132.54 -1.54 358.2 337 -39.8 39.8
MRWA SG 140.00 1.00 0.64 145.03 -5.03 358.2 337 0.1 0.1
MUN i P 62.00 0.10 1.25 62.50 -0.50 114.5 283 0.4 0.4
MUN i SG 76.10 0.20 0.98 76.17 -0.07 114.5 283 0.4 0.4
NWAO e P 57.70 0.20 0.78 56.85 0.85 79.8 190 0.5 0.5
NWAO i S 65.50 0.20 1.01 66.38 -0.88 79.8 190 0.5 0.5
RKG w P 84.00 1.00 0.52 82.65 1.35 263.0 187 -40.9 40.9
RKG i S 114.30 0.20 0.91 111.89 2.41 263.0 187 -39.8 39.8
Velocity Ratios
KLB NWAO BAL MRWA
KLB 1.71 0.00 1.71 1.77
0.03 0.00 0.06 0.03
NWAO 0.00 1.56 1.84 1.82
0.00 0.04 0.08 0.04
BAL 1.71 1.84 1.71 1.81
0.06 0.08 0.02 0.07
MRWA 1.77 1.82 1.81 1.75
0.03 0.04 0.07 0.01
Start
Date 1990-08-11
Origin Time 1755 0.50 +- 12.25
Zone 52
Easting 661.06 +- 135.09 Longitude 130.573
Northing 7439.09 +- 61.45 Latitude -23.149
Depth 5.00 +- 212.69 N
Nearest recorder = 520.6 km Gap = 242.1 deg Accuracy = C
Effects Code = Imax = 0 Fault =
345 km W (279 deg) of ASPA
NORTHERN TERRITORY
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
KNA e P 108.00 0.30 0.58 108.24 -0.24 840.5 346 -42.2 42.2
KNA e S 189.00 1.00 0.41 188.25 0.75 840.5 346 -40.3 40.3
MBL e P 142.70 0.20 0.61 143.54 -0.84 1132.4 279 -42.2 42.2
MBL e S 251.00 0.30 0.51 249.72 1.28 1132.4 279 -40.3 40.3
MEKA e P 160.00 0.10 0.70 161.37 -1.37 1279.5 249 -42.2 42.2
MEKA S 280.50 0.30 0.72 280.75 -0.25 1279.5 249 -40.3 40.3
WARB e P 71.30 0.20 0.66 69.60 1.70 520.6 228 -42.2 42.2
Velocity Ratios
KNA MBL MEKA
KNA 1.75 1.79 1.76
0.01 0.06 0.04
MBL 1.79 1.76 1.71
0.06 0.00 0.07
MEKA 1.76 1.71 1.76
0.04 0.07 0.00
Start
Date 1990-08-13
Origin Time 0936 44.78 +-5009.65
Zone 51
Easting 256.21 +-9877.95 Longitude 120.528
Northing 6937.14 +-6718.71 Latitude -27.668
Depth 2.00 +-38456.32 C
Nearest recorder = 229.9 km Gap = 136.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
229 km SE (120 deg) of MEKA
WESTERN AUSTRALIA
655 km NE ( 45 deg) of PERTH
39 km N (360 deg) of Agnew
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
COOL e PG 104.00 1.00 0.50 103.74 0.26 361.5 170 0.4 0.4
FORR e P 150.00 0.50 0.45 149.31 0.69 810.9 117 -42.2 42.2
KLB e S 113.00 2.00 0.38 163.85 -50.85 511.6 210 -40.3 40.3
KLB S 166.00 1.00 0.62 163.85 2.15 511.6 210 -40.3 40.3
MBL e SG 249.00 2.00 0.36 244.98 4.02 724.7 354 0.2 0.2
MEKA i P 41.10 0.10 1.15 79.05 -37.95 229.9 300 -42.2 42.2
MEKA PG 85.00 2.00 0.64 82.28 2.72 229.9 300 0.6 0.6
MRWA e S 159.00 0.20 0.60 156.61 2.39 477.2 247 -40.3 40.3
WARB e P 130.00 0.50 0.54 127.31 2.69 629.1 76 -42.2 42.2
WARB S 191.00 1.00 0.60 188.62 2.38 629.1 76 -40.3 40.3
NO VELOCITY RATIOS
Start
Date 1990-08-14 Event type = BL
Origin Time 0904 1.00 +- 168.06
Zone 50
Easting 853.79 +- 525.47 Longitude 120.602
Northing 6880.96 +- 357.88 Latitude -28.150
Depth -1.15 +-1389.80
Nearest recorder = 266.2 km Gap = 99.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
266 km SE (130 deg) of MEKA
WESTERN AUSTRALIA
622 km NE ( 49 deg) of PERTH
16 km SE (154 deg) of Agnew
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
COOL e P 46.00 0.40 0.60 45.05 0.95 308.0 170 -42.2 42.2
KLB e P 66.00 0.20 0.67 64.64 1.36 470.1 214 -42.2 42.2
KLB e S 113.00 2.00 0.38 111.91 1.09 470.1 214 -40.3 40.3
MBL e SG 249.00 2.00 0.36 216.14 32.86 778.8 354 -0.1 -0.1
MEKA i P 41.10 0.10 1.15 40.00 1.10 266.2 309 -42.2 42.2
MEKA e S 71.00 0.50 0.53 69.01 1.99 266.2 309 -40.3 40.3
WARB e P 86.50 0.30 0.60 85.25 1.25 640.4 71 -42.2 42.2
WARB e S 184.00 1.00 0.42 147.79 36.21 640.4 71 -40.3 40.3
Velocity Ratios
MEKA KLB
MEKA 1.75 1.69
0.02 0.12
KLB 1.69 1.72
0.12 0.04
Start
Date 1990-08-17
Origin Time 1214 37.78 +- 4.15
Zone 51
Easting 450.94 +- 11.74 Longitude 122.537
Northing 8044.20 +- 14.54 Latitude -17.689
Depth 5.00 +- 40.91 N
Nearest recorder = 477.8 km Gap = 188.4 deg Accuracy = C
Effects Code = Imax = 0 Fault =
477 km NE ( 36 deg) of MBL
WESTERN AUSTRALIA
45 km NE ( 46 deg) of BROOME
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 4.2
PHASE INFORMATION
DATA USED
COOL e P 219.50 0.50 0.51 221.43 -1.93 1468.0 185 -42.2 42.2
COOL e S 359.00 1.00 0.40 357.70 1.30 1468.0 185 -40.3 40.3
KNA e P 127.50 0.50 0.53 128.38 -0.88 698.8 72 -42.2 42.2
KNA e PG 156.50 1.00 0.46 151.78 4.72 698.8 72 0.4 0.4
KNA e S 196.10 0.20 0.58 195.71 0.39 698.8 72 -40.3 40.3
MBL e P 100.70 0.10 0.76 101.67 -0.97 477.8 215 -42.2 42.2
MEKA e P 173.20 0.20 0.61 173.50 -0.30 1071.6 201 -42.2 42.2
MEKA e S 274.20 0.20 0.55 274.26 -0.06 1071.6 201 -40.3 40.3
MRWA e P 216.50 0.50 0.51 218.37 -1.87 1442.8 206 -42.2 42.2
MRWA e S 350.00 1.00 0.40 352.37 -2.37 1442.8 206 -40.3 40.3
MTN i P 173.80 0.20 0.87 173.23 0.57 1069.7 60 -42.2 42.2
MUN e P 249.10 0.10 0.70 250.52 -1.42 1708.8 200 -42.2 42.2
MUN e S 400.00 1.00 0.40 408.35 -8.35 1708.8 200 -40.3 40.3
NANU e P 155.30 0.20 0.62 154.29 1.01 913.1 232 -42.2 42.2
NANU e S 242.00 2.00 0.35 240.81 1.19 913.1 232 -40.3 40.3
WARB i-P 169.10 0.10 1.01 168.68 0.42 1031.7 156 -42.2 42.2
WARB e S 266.30 0.50 0.46 265.86 0.44 1031.7 156 -40.3 40.3
WB5 e P 196.50 0.30 0.56 198.34 -1.84 1277.1 102 -42.2 42.2
WB5 e S 318.00 0.50 0.46 317.50 0.50 1277.1 102 -40.3 40.3
Velocity Ratios
KNA NANU WARB MEKA WB5 COOL
KNA 1.76 1.65 1.69 1.71 1.77 1.77
0.01 0.12 0.04 0.04 0.03 0.03
NANU 1.65 1.74 0.00 1.80 1.84 1.82
0.12 0.02 0.00 0.17 0.08 0.07
WARB 1.69 0.00 1.74 0.00 1.89 1.84
0.04 0.00 0.01 0.00 0.06 0.05
MEKA 1.71 1.80 0.00 1.75 1.88 1.83
0.04 0.17 0.00 0.00 0.07 0.05
WB5 1.77 1.84 1.89 1.88 1.77 1.78
0.03 0.08 0.06 0.07 0.01 0.13
COOL 1.77 1.82 1.84 1.83 1.78 1.77
0.03 0.07 0.05 0.05 0.13 0.01
Start
Date 1990-08-17
Origin Time 2132 37.87 +- 25.60
Zone 51
Easting 454.75 +- 152.26 Longitude 122.573
Northing 8037.52 +- 610.18 Latitude -17.749
Depth 5.00 +- 587.36 N
Nearest recorder = 912.1 km Gap = 283.6 deg Accuracy = C
Effects Code = Imax = 0 Fault =
474 km NE ( 37 deg) of MBL
WESTERN AUSTRALIA
44 km NE ( 56 deg) of BROOME
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.9
PHASE INFORMATION
DATA USED
MEKA w P 173.00 1.00 0.45 173.01 -0.01 1066.8 202 -42.2 42.2
MEKA w S 277.00 2.00 0.36 273.34 3.66 1066.8 202 -40.3 40.3
MRWA e P 216.00 0.50 0.51 217.93 -1.93 1438.5 206 -42.2 42.2
MRWA e S 350.00 0.50 0.46 351.55 -1.55 1438.5 206 -40.3 40.3
NANU e P 155.00 0.20 0.62 154.25 0.75 912.1 232 -42.2 42.2
NANU e S 240.50 0.50 0.47 240.69 -0.19 912.1 232 -40.3 40.3
WARB e P 167.80 0.20 0.61 167.84 -0.04 1024.1 156 -42.2 42.2
WARB e S 265.00 0.50 0.46 264.33 0.67 1024.1 156 -40.3 40.3
Velocity Ratios
NANU WARB
NANU 1.73 1.91
0.01 0.14
WARB 1.91 1.75
0.14 0.01
Start
Date 1990-08-18
Origin Time 0416 26.07 +- 42.94
Zone 50
Easting 503.94 +- 264.70 Longitude 117.042
Northing 6501.67 +- 730.58 Latitude -31.620
Depth 2.43 +- 399.67
Nearest recorder = 68.2 km Gap = 155.4 deg Accuracy = A
Effects Code = Imax = 0 Fault =
26 km E ( 96 deg) of YORK
WESTERN AUSTRALIA
119 km E ( 72 deg) of PERTH
3 km E ( 70 deg) of Meckering
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.1
PHASE INFORMATION
DATA USED
BAL e PG 45.30 0.20 0.76 45.12 0.18 116.8 344 1.3 1.3
BAL PG 73.00 1.00 0.72 45.12 27.88 116.8 344 1.3 1.3
KLB i P 37.10 0.10 1.30 37.21 -0.11 68.2 87 2.3 2.3
KLB e S 44.80 0.10 0.82 45.36 -0.56 68.2 87 2.3 2.3
KLB PG 82.00 0.50 0.81 37.21 44.79 68.2 87 2.3 2.3
MRWA e P 59.00 0.30 0.65 67.33 -8.33 284.5 339 -40.9 40.9
MRWA SG 97.30 0.10 1.04 106.44 -9.14 284.5 339 0.5 0.5
MUN e P 40.20 0.10 0.89 40.48 -0.28 88.3 242 1.7 1.7
MUN e S 50.20 0.20 0.70 51.03 -0.83 88.3 242 1.7 1.7
Velocity Ratios
KLB MUN
KLB 1.70 0.00
0.02 0.00
MUN 0.00 1.71
0.00 0.03
Start
Date 1990-08-18
Origin Time 1947 23.08 +- 34.48
Zone 50
Easting 645.62 +- 41.65 Longitude 118.485
Northing 6873.23 +- 189.34 Latitude -28.259
Depth 5.00 +- 231.52 N
Nearest recorder = 265.2 km Gap = 253.6 deg Accuracy = D
Effects Code = Imax = 0 Fault =
182 km S (181 deg) of MEKA
WESTERN AUSTRALIA
482 km NE ( 32 deg) of PERTH
186 km S (180 deg) of MEEKATHARRA
66 km E (109 deg) of Mt Magnet
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
BAL 312 3.3
Mean 3.3 Assign ML 3.3
PHASE INFORMATION
DATA USED
BAL PG 73.00 1.00 0.72 74.00 -1.00 312.1 212 1.0 1.0
BAL SG 120.00 1.00 0.65 109.31 10.69 312.1 212 1.0 1.0
COOL e P 79.70 0.20 0.68 76.25 3.45 388.9 139 -42.2 42.2
COOL SG 130.50 0.10 1.00 130.52 -0.02 388.9 139 0.8 0.8
KLB PG 82.00 0.50 0.81 84.41 -2.41 375.9 190 0.8 0.8
KLB e S 138.00 1.00 0.44 113.06 24.94 375.9 190 -40.3 40.3
KLB SG 138.00 1.00 0.50 126.94 11.06 375.9 190 0.8 0.8
MBL e P 80.20 0.10 0.73 125.71 -45.51 798.2 10 -42.2 42.2
MBL e S 133.50 0.20 0.57 201.95 -68.45 798.2 10 -40.3 40.3
MEKA S-P 6.20 0.10 1.20 21.06 -14.86 182.2 1 0.0 0.0
MEKA i+P 16.10 0.10 1.20 51.25 -35.15 182.2 1 -42.2 42.2
MEKA i S 22.40 0.10 1.08 72.31 -49.91 182.2 1 -40.3 40.3
MRWA e P 59.00 0.30 0.65 61.27 -2.27 265.2 245 -42.2 42.2
MRWA SG 97.30 0.10 1.04 96.36 0.94 265.2 245 1.1 1.1
MRWA e S 97.30 0.50 0.53 89.75 7.55 265.2 245 -40.3 40.3
MUN i-P 91.80 0.10 1.09 85.64 6.16 466.9 207 -42.2 42.2
MUN SG 153.00 0.50 0.71 152.05 0.95 466.9 207 0.6 0.6
NO VELOCITY RATIOS
Start
Date 1990-08-19
Origin Time 2049 0.30 +- 11.43
Zone 51
Easting 331.23 +- 119.16 Longitude 121.377
Northing 7683.51 +- 260.83 Latitude -20.941
Depth 12.82 +- 40.10
Nearest recorder = 162.3 km Gap = 197.8 deg Accuracy = C
Effects Code = Imax = 0 Fault =
162 km E ( 81 deg) of MBL
WESTERN AUSTRALIA
300 km E (104 deg) of PORT HEDLAND
171 km E ( 82 deg) of Marble Bar
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.4
PHASE INFORMATION
DATA USED
KNA e SG 268.00 1.00 0.40 268.32 -0.32 970.2 54 0.8 0.8
KNA e S 268.00 1.00 0.40 213.95 54.05 970.2 54 -40.3 40.3
MBL e P 25.30 0.10 0.85 25.15 0.15 162.3 261 -30.8 30.8
MBL i PG 26.80 0.10 1.21 26.86 -0.06 162.3 261 4.6 4.6
MBL i S 44.00 0.10 1.09 43.89 0.11 162.3 261 -40.3 40.3
NANU e P 82.60 0.20 0.65 82.32 0.28 635.0 252 -42.2 42.2
NANU e S 141.00 1.00 0.42 143.38 -2.38 635.0 252 -40.3 40.3
NANU w SG 172.00 2.00 0.38 175.75 -3.75 635.0 252 1.2 1.2
WARB e P 118.50 0.40 0.55 101.24 17.26 791.1 138 -42.2 42.2
WARB w PG 118.50 0.40 0.68 129.37 -10.87 791.1 138 1.0 1.0
WARB w SG 207.00 5.00 0.29 218.87 -11.87 791.1 138 1.0 1.0
Velocity Ratios
MBL NANU
MBL 1.75 1.69
0.01 0.03
NANU 1.69 1.71
0.03 0.02
Start
Date 1990-08-20
Origin Time 0100 34.22 +- 0.69
Zone 50
Easting 437.59 +- 5.20 Longitude 116.341
Northing 6484.13 +- 6.29 Latitude -31.777
Depth 6.64 +- 13.93
Nearest recorder = 25.6 km Gap = 165.9 deg Accuracy = A
Effects Code = F Imax = 3 Fault =
16 km E (100 deg) of PIG4
WESTERN AUSTRALIA
50 km NE ( 68 deg) of PERTH
12 km N (351 deg) of Atlas Quarry
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.9
PHASE INFORMATION
DATA USED
BAL S-P 15.00 0.50 0.89 15.68 -0.68 134.3 15 0.0 0.0
BAL w P 56.00 1.00 0.55 55.68 0.32 134.3 15 -30.8 30.8
BAL e S 71.00 0.30 0.62 71.36 -0.36 134.3 15 3.0 3.0
KLB S-P 16.00 0.10 1.23 15.93 0.07 136.1 81 0.0 0.0
KLB e P 55.90 0.20 0.75 55.93 -0.03 136.1 81 -30.8 30.8
KLB i S 71.90 0.10 1.10 71.86 0.04 136.1 81 2.9 2.9
MUN i S-P 2.70 0.05 1.62 3.00 -0.30 25.6 209 0.0 0.0
MUN i P 38.70 0.05 1.61 38.55 0.15 25.6 209 15.0 15.0
MUN i S 41.40 0.10 1.26 41.56 -0.16 25.6 209 15.0 15.0
NWAO e P 58.00 0.30 0.68 58.25 -0.25 152.7 146 -30.8 30.8
NWAO e S 76.30 0.30 0.61 76.32 -0.02 152.7 146 -23.9 23.9
Velocity Ratios
MUN BAL KLB NWAO
MUN 1.60 1.71 1.77 1.81
0.04 0.14 0.04 0.05
BAL 1.71 1.69 0.00 0.00
0.14 0.10 0.00 0.00
KLB 1.77 0.00 1.74 0.00
0.04 0.00 0.02 0.00
NWAO 1.81 0.00 0.00 1.77
0.05 0.00 0.00 0.04
Start
Date 1990-08-23 Event type = BL
Origin Time 0948 28.66 +- 1.47
Zone 50
Easting 580.54 +- 11.30 Longitude 117.849
Northing 6504.27 +- 7.81 Latitude -31.594
Depth 2.72 +- 18.58
Nearest recorder = 8.4 km Gap = 124.5 deg Accuracy = A
Effects Code = Imax = 0 Fault =
8 km E ( 91 deg) of KLB
WESTERN AUSTRALIA
193 km E ( 79 deg) of PERTH
13 km E ( 72 deg) of Kellerberrin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.7
PHASE INFORMATION
DATA USED
BAL i SG 71.50 0.10 1.09 71.32 0.18 154.4 314 1.1 1.1
COOL w P 74.40 0.50 0.59 74.21 0.19 323.8 76 -42.2 42.2
COOL w PG 81.50 0.50 0.59 81.50 0.00 323.8 76 0.6 0.6
COOL w SG 116.00 1.00 0.46 118.13 -2.13 323.8 76 0.6 0.6
KLB i+P 29.90 0.10 1.52 30.13 -0.23 8.4 271 19.7 19.7
KLB e S 31.40 0.10 0.96 31.14 0.26 8.4 271 19.7 19.7
MRWA S 107.70 0.30 0.74 106.81 0.89 317.8 325 -40.3 40.3
MUN e P 54.00 0.10 0.85 54.20 -0.20 161.1 254 -30.8 30.8
MUN e S 73.00 0.20 0.66 73.17 -0.17 161.1 254 1.1 1.1
NWAO e PG 54.50 0.50 0.61 54.56 -0.06 158.7 201 1.1 1.1
NWAO e SG 73.00 0.20 0.66 72.52 0.48 158.7 201 1.1 1.1
Velocity Ratios
KLB MUN
KLB 2.21 1.73
0.28 0.03
MUN 1.73 1.75
0.03 0.01
Start
Date 1990-08-24 Event type = BL
Origin Time 1018 54.90 +- 0.00
Zone 50
Easting 883.97 +- 0.00 Longitude 120.773
Northing 7340.88 +- 0.00 Latitude -23.998
Depth 5.00 +- 0.00 N
Nearest recorder = 329.1 km Gap = 302.8 deg Accuracy = D
Effects Code = Imax = 0 Fault =
103 km E ( 90 deg) of MY36
WESTERN AUSTRALIA
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.2
PHASE INFORMATION
DATA USED
MBL i-P 100.80 0.10 1.13 100.80 -0.00 329.1 342 -42.2 42.2
MBL i S 135.00 0.20 0.89 135.00 -0.00 329.1 342 -40.3 40.3
MEKA P 105.00 0.10 1.12 105.48 -0.48 367.5 217 -42.2 42.2
NANU e S 183.50 2.00 0.37 184.22 -0.72 563.0 285 -40.3 40.3
Velocity Ratios
MBL
MBL 1.75
0.01
Start
Date 1990-08-28
Origin Time 1004 54.18 +- 9.47
Zone 49
Easting 679.67 +- 74.23 Longitude 112.751
Northing 7470.44 +- 28.38 Latitude -22.864
Depth 5.24 +- 54.73
Nearest recorder = 284.9 km Gap = 274.6 deg Accuracy = C
Effects Code = Imax = 0 Fault =
186 km W (279 deg) of LP03
WESTERN AUSTRALIA
176 km SW (233 deg) of Exmouth
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.6
PHASE INFORMATION
DATA USED
BAL e P 175.00 0.50 0.52 174.53 0.47 944.9 156 -42.2 42.2
BAL e S 264.00 1.00 0.40 263.90 0.10 944.9 156 -40.3 40.3
COOL e P 211.00 0.50 0.51 208.18 2.82 1223.0 138 -42.2 42.2
MBL P 152.00 1.00 0.66 151.92 0.08 758.0 76 -42.2 42.2
MBL e S 222.00 1.00 0.41 224.54 -2.54 758.0 76 -40.3 40.3
MEKA e P 146.50 0.20 0.64 147.25 -0.75 719.2 126 -42.2 42.2
MRWA e P 153.00 0.30 0.58 154.10 -1.10 775.9 156 -42.2 42.2
MRWA e S 228.00 0.50 0.47 228.33 -0.33 775.9 156 -40.3 40.3
MUN e P 189.10 0.50 0.51 189.31 -0.21 1067.2 162 -42.2 42.2
NANU e P 94.90 0.20 0.70 94.69 0.21 284.9 83 -42.2 42.2
NANU e PG 101.00 0.50 0.58 100.66 0.34 284.9 83 1.1 1.1
WARB e P 234.50 0.30 0.56 238.06 -3.56 1470.2 107 -42.2 42.2
WARB e S 374.00 1.00 0.40 374.51 -0.51 1470.2 107 -40.3 40.3
Velocity Ratios
MRWA BAL
MRWA 1.76 1.64
0.01 0.13
BAL 1.64 1.74
0.13 0.02
Start
Date 1990-08-30 Event type = BL
Origin Time 0350 18.29 +- 0.00
Zone 51
Easting 172.72 +- 0.00 Longitude 119.802
Northing 7428.46 +- 0.00 Latitude -23.220
Depth 5.00 +- 0.00 N
Nearest recorder = 228.4 km Gap = 161.9 deg Accuracy = D
Effects Code = Imax = 0 Fault =
64 km N ( 7 deg) of MY38
WESTERN AUSTRALIA
347 km S (159 deg) of PORT HEDLAND
21 km NE ( 37 deg) of Mt Newman Mine
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.2
PHASE INFORMATION
DATA USED
MBL e P 52.00 2.00 0.45 52.02 -0.02 228.4 0 -42.2 42.2
MRWA w P 120.00 5.00 0.32 117.24 2.76 767.7 208 -42.2 42.2
MRWA w S 190.00 5.00 0.29 190.75 -0.75 767.7 208 -40.3 40.3
NANU e P 78.40 0.10 0.77 78.72 -0.32 449.3 278 -42.2 42.2
NANU e S 122.90 0.20 0.60 123.68 -0.78 449.3 278 -40.3 40.3
WARB e P 117.00 1.00 0.46 117.05 -0.05 766.0 116 -42.2 42.2
WARB e S 199.00 5.00 0.30 190.42 8.58 766.0 116 -40.3 40.3
Velocity Ratios
NANU
NANU 1.74
0.01
Start
Date 1990-08-30
Origin Time 1228 50.45 +- 1.34
Zone 50
Easting 553.16 +- 6.82 Longitude 117.569
Northing 6356.68 +- 4.67 Latitude -32.927
Depth 6.27 +- 10.77
Nearest recorder = 31.3 km Gap = 188.7 deg Accuracy = A
Effects Code = Imax = 0 Fault =
31 km E ( 90 deg) of NWAO
WESTERN AUSTRALIA
232 km N (353 deg) of ALBANY
195 km SE (124 deg) of PERTH
46 km N (341 deg) of Dumbleyung
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
PHASE INFORMATION
DATA USED
KLB e P 74.00 0.20 0.74 74.01 -0.01 149.1 6 -30.8 30.8
KLB e S 91.80 0.20 0.67 91.67 0.13 149.1 6 2.5 2.5
MRWA e S 155.00 0.50 0.50 153.17 1.83 437.5 339 -40.3 40.3
MRWA e SG 171.00 0.30 0.56 171.33 -0.33 437.5 339 0.9 0.9
MUN e P 76.60 0.20 0.73 76.30 0.30 165.5 309 -30.8 30.8
MUN e S 95.50 0.20 0.66 95.83 -0.33 165.5 309 -23.9 23.9
NWAO e P 55.30 0.10 0.97 55.67 -0.37 31.3 269 11.8 11.8
NWAO e S 59.60 0.10 0.87 59.29 0.31 31.3 269 11.8 11.8
RKG e P 79.30 0.10 0.83 79.32 -0.02 189.4 195 -42.2 42.2
RKG e S 101.00 0.10 0.75 100.92 0.08 189.4 195 -40.3 40.3
Velocity Ratios
NWAO KLB MUN RKG
NWAO 1.89 1.72 1.69 1.73
0.06 0.04 0.04 0.02
KLB 1.72 1.76 0.00 1.74
0.04 0.02 0.00 0.16
MUN 1.69 0.00 1.72 0.00
0.04 0.00 0.02 0.00
RKG 1.73 1.74 0.00 1.75
0.02 0.16 0.00 0.01
Start
Date 1990-09-03
Origin Time 1703 54.06 +- 2.61
Zone 51
Easting 548.63 +- 5.38 Longitude 123.510
Northing 6549.74 +- 15.80 Latitude -31.185
Depth 8.97 +- 16.98
Nearest recorder = 228.2 km Gap = 175.3 deg Accuracy = B
Effects Code = Imax = 0 Fault =
152 km E ( 97 deg) of KLDM
WESTERN AUSTRALIA
732 km E ( 85 deg) of PERTH
199 km NE ( 56 deg) of NORSEMAN
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.7
PHASE INFORMATION
DATA USED
COOL e P 88.00 0.20 0.71 87.36 0.64 228.2 277 -42.2 42.2
COOL PG 90.20 0.30 0.94 91.32 -1.12 228.2 277 2.4 2.4
COOL SG 117.00 0.10 1.05 117.16 -0.16 228.2 277 2.4 2.4
FORR P 113.00 1.00 0.69 112.68 0.32 437.6 85 -42.2 42.2
FORR S 156.00 0.30 0.80 156.35 -0.35 437.6 85 -40.3 40.3
FORR SG 170.00 0.50 0.72 174.97 -4.97 437.6 85 1.2 1.2
KLB e P 116.70 0.20 0.66 126.13 -9.43 549.0 263 -42.2 42.2
KLB e S 178.20 0.20 0.59 179.77 -1.57 549.0 263 -40.3 40.3
MEKA SG 248.00 0.50 0.68 247.90 0.10 701.6 315 0.8 0.8
MRWA P 151.00 0.50 0.75 151.23 -0.23 756.6 284 -42.2 42.2
MRWA S 223.00 1.00 0.59 223.46 -0.46 756.6 284 -40.3 40.3
MRWA SG 265.00 1.00 0.59 263.07 1.93 756.6 284 0.7 0.7
MUN e P 144.10 0.10 0.74 144.30 -0.20 699.3 260 -42.2 42.2
MUN e S 211.80 0.10 0.66 211.41 0.39 699.3 260 -40.3 40.3
NWAO w S 204.00 2.00 0.38 195.49 8.51 623.7 250 -40.3 40.3
RKG w P 155.00 5.00 0.34 146.21 8.79 715.1 236 -42.2 42.2
RKG S 220.00 1.00 0.59 214.72 5.28 715.1 236 -40.3 40.3
WARB P 136.50 0.50 0.77 136.34 0.16 633.3 29 -42.2 42.2
WARB S 201.00 2.00 0.52 197.54 3.46 633.3 29 -40.3 40.3
WARB SG 227.00 2.00 0.52 229.02 -2.02 633.3 29 0.9 0.9
Velocity Ratios
FORR MUN MRWA
FORR 1.73 1.79 1.76
0.04 0.08 0.11
MUN 1.79 1.75 0.00
0.08 0.00 0.00
MRWA 1.76 0.00 1.74
0.11 0.00 0.02
Start
Date 1990-09-05
Origin Time 0412 5.71 +- 0.00
Zone 50
Easting 575.92 +- 0.00 Longitude 117.903
Northing 5455.63 +- 0.00 Latitude -41.047
Depth 5.00 +- 0.00 N
Nearest recorder = 722.9 km Gap = 354.9 deg Accuracy = D
Effects Code = Imax = 0 Fault =
723 km S (174 deg) of RKG
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.0
PHASE INFORMATION
DATA USED
MUN e S 236.00 1.00 0.40 236.55 -0.55 1017.3 350 -39.8 39.8
NWAO S 211.00 1.00 0.58 211.72 -0.72 902.8 356 -39.8 39.8
RKG e P 101.00 0.20 0.64 100.75 0.25 722.9 353 -40.9 40.9
RKG e S 171.00 0.30 0.53 172.70 -1.70 722.9 353 -39.8 39.8
Velocity Ratios
RKG
RKG 1.73
0.01
Start
Date 1990-09-11
Origin Time 0929 52.05 +- 253.67
Zone 50
Easting 668.37 +- 955.39 Longitude 118.800
Northing 6359.73 +- 478.71 Latitude -32.888
Depth 5.00 +-1462.72 N
Nearest recorder = 146.6 km Gap = 302.3 deg Accuracy = D
Effects Code = Imax = 0 Fault =
65 km E (111 deg) of KULI
WESTERN AUSTRALIA
296 km E (111 deg) of PERTH
250 km N ( 20 deg) of ALBANY
39 km NE ( 53 deg) of Lake Grace
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.9
PHASE INFORMATION
DATA USED
KLB i-P 79.50 0.10 1.20 79.19 0.31 173.9 325 -30.8 30.8
KLB e SG 100.00 0.20 0.66 100.11 -0.11 173.9 325 1.7 1.7
MUN w P 94.30 1.00 0.52 90.05 4.25 263.7 291 -42.2 42.2
MUN e SG 124.00 0.20 0.63 124.91 -0.91 263.7 291 1.1 1.1
NWAO i-P 75.00 0.10 1.22 75.37 -0.37 146.6 267 -30.8 30.8
NWAO i S 93.00 0.10 1.10 92.57 0.43 146.6 267 2.1 2.1
Velocity Ratios
NWAO
NWAO 1.78
0.01
Start
Date 1990-09-11
Origin Time 0938 54.31 +- 297.30
Zone 50
Easting 671.98 +-1132.67 Longitude 118.839
Northing 6359.33 +- 544.59 Latitude -32.891
Depth 5.00 +-1598.94 N
Nearest recorder = 150.2 km Gap = 303.4 deg Accuracy = D
Effects Code = Imax = 0 Fault =
68 km E (111 deg) of KULI
WESTERN AUSTRALIA
300 km E (111 deg) of PERTH
251 km N ( 21 deg) of ALBANY
42 km NE ( 56 deg) of Lake Grace
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
PHASE INFORMATION
DATA USED
KLB e P 82.40 0.10 0.84 81.74 0.66 176.3 324 -42.2 42.2
KLB SG 103.00 0.20 0.94 103.02 -0.02 176.3 324 1.7 1.7
KLB e S 103.00 0.20 0.66 102.25 0.75 176.3 324 -40.3 40.3
MUN w PG 97.00 2.00 0.45 97.90 -0.90 267.2 291 1.1 1.1
MUN e SG 127.00 0.30 0.58 128.13 -1.13 267.2 291 1.1 1.1
MUN e S 127.00 0.30 0.58 121.38 5.62 267.2 291 -40.3 40.3
NWAO i P 77.70 0.10 1.22 78.13 -0.43 150.2 268 -30.8 30.8
NWAO i S 96.30 0.10 1.09 95.82 0.48 150.2 268 2.0 2.0
Velocity Ratios
NWAO
NWAO 1.80
0.01
Start
Date 1990-09-12
Origin Time 1050 29.11 +- 1.40
Zone 50
Easting 481.23 +- 7.64 Longitude 116.804
Northing 6618.12 +- 9.50 Latitude -30.569
Depth 1.93 +- 28.14
Nearest recorder = 10.2 km Gap = 169.2 deg Accuracy = B
Effects Code = Imax = 0 Fault =
10 km NE ( 66 deg) of BAL
WESTERN AUSTRALIA
178 km NE ( 31 deg) of PERTH
5 km NE ( 44 deg) of Ballidu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.5
PHASE INFORMATION
DATA USED
BAL i P 30.80 0.10 1.50 30.82 -0.02 10.2 245 12.3 12.3
COOL w P 85.00 1.00 0.50 86.05 -1.05 417.3 95 -42.2 42.2
COOL e PG 96.00 1.00 0.49 97.18 -1.18 417.3 95 0.3 0.3
COOL e S 127.00 1.00 0.44 128.38 -1.38 417.3 95 -40.3 40.3
KLB e P 52.50 0.30 0.69 52.53 -0.03 145.4 141 -30.8 30.8
KLB i S 69.30 0.20 0.96 69.30 0.00 145.4 141 0.9 0.9
MBL SG 155.00 1.00 0.63 328.98-173.98 1085.5 16 0.1 0.1
MRWA e P 55.90 0.20 0.73 55.80 0.10 168.8 332 -30.8 30.8
MUN e P 55.30 0.30 0.68 55.43 -0.13 166.2 199 -30.8 30.8
MUN i S 75.10 0.20 0.94 75.02 0.08 166.2 199 0.8 0.8
NWAO i SG 101.40 0.20 0.91 102.17 -0.77 264.4 171 0.5 0.5
Velocity Ratios
KLB MUN
KLB 1.72 0.00
0.03 0.00
MUN 0.00 1.76
0.00 0.03
Start
Date 1990-09-12
Origin Time 1205 39.49 +- 21.21
Zone 51
Easting 486.25 +- 44.04 Longitude 122.870
Northing 7940.37 +- 63.04 Latitude -18.628
Depth 5.00 +- 184.42 N
Nearest recorder = 423.9 km Gap = 176.0 deg Accuracy = B
Effects Code = Imax = 0 Fault =
423 km NE ( 49 deg) of MBL
WESTERN AUSTRALIA
99 km SE (137 deg) of BROOME
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.2
PHASE INFORMATION
DATA USED
KNA w S 197.00 2.00 0.37 198.56 -1.56 704.2 63 -40.3 40.3
MBL e P 96.50 0.10 0.77 96.85 -0.35 423.9 227 -42.2 42.2
MBL S 140.00 1.00 0.63 139.55 0.45 423.9 227 -40.3 40.3
MBL SG 155.00 1.00 0.63 156.60 -1.60 423.9 227 0.7 0.7
MRWA e P 210.00 0.20 0.61 210.92 -0.92 1367.2 209 -42.2 42.2
MRWA e S 337.00 0.50 0.46 338.15 -1.15 1367.2 209 -40.3 40.3
MTN P 178.00 0.30 0.80 177.97 0.03 1094.8 55 -42.2 42.2
MTN S 282.00 1.00 0.57 280.78 1.22 1094.8 55 -40.3 40.3
NANU e P 153.00 0.50 0.52 152.46 0.54 883.9 239 -42.2 42.2
NANU e S 235.00 1.00 0.41 236.37 -1.37 883.9 239 -40.3 40.3
WARB P 157.40 0.30 0.82 157.17 0.23 922.5 155 -42.2 42.2
WARB S 247.00 1.00 0.58 244.56 2.44 922.5 155 -40.3 40.3
Velocity Ratios
MBL
MBL 1.76
0.02
Start
Date 1990-09-12
Origin Time 1248 3.77 +- 2.43
Zone 50
Easting 480.33 +- 14.88 Longitude 116.795
Northing 6619.39 +- 13.12 Latitude -30.558
Depth 2.00 +- 33.35 C
Nearest recorder = 10.0 km Gap = 169.1 deg Accuracy = B
Effects Code = Imax = 0 Fault =
10 km NE ( 57 deg) of BAL
WESTERN AUSTRALIA
179 km NE ( 30 deg) of PERTH
5 km NE ( 27 deg) of Ballidu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.2
PHASE INFORMATION
DATA USED
BAL i P 5.30 0.10 1.50 5.45 -0.15 10.0 237 12.9 12.9
KLB e P 27.40 0.30 0.68 27.39 0.01 147.0 141 -30.8 30.8
KLB e S 44.10 0.20 0.67 44.38 -0.28 147.0 141 0.9 0.9
MRWA e P 30.30 0.20 0.73 30.23 0.07 167.3 332 -30.8 30.8
MRWA e S 48.70 0.20 0.66 49.99 -1.29 167.3 332 0.8 0.8
MUN e P 30.90 0.20 0.73 30.20 0.70 167.1 199 -30.8 30.8
MUN e S 50.00 0.20 0.66 49.92 0.08 167.1 199 0.8 0.8
Velocity Ratios
KLB MUN
KLB 1.71 0.00
0.03 0.00
MUN 0.00 1.70
0.00 0.02
Start
Date 1990-09-12
Origin Time 1930 48.56 +- 431.01
Zone 48
Easting 691.41 +-21319.05 Longitude 106.953
Northing 6860.24 +-7035.14 Latitude -28.370
Depth 5.00 +-28504.32 N
Nearest recorder = 892.3 km Gap = 341.7 deg Accuracy = C
Effects Code = Imax = 0 Fault =
764 km W (250 deg) of LP01
944 km W (293 deg) of PERTH
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.7
PHASE INFORMATION
DATA USED
BAL e P 174.50 0.20 0.62 173.56 0.94 983.1 107 -42.2 42.2
BAL e S 267.00 5.00 0.29 266.37 0.63 983.1 107 -40.3 40.3
MRWA e P 161.80 0.10 0.72 162.58 -0.78 892.3 98 -42.2 42.2
MRWA e S 248.00 1.00 0.41 247.26 0.74 892.3 98 -40.3 40.3
MUN e P 173.50 0.20 0.62 173.37 0.13 981.7 116 -42.2 42.2
MUN e S 265.00 2.00 0.35 266.05 -1.05 981.7 116 -40.3 40.3
Velocity Ratios
MRWA MUN
MRWA 1.76 0.00
0.01 0.00
MUN 0.00 1.73
0.00 0.02
Start
Date 1990-09-13
Origin Time 1300 33.41 +- 0.77
Zone 50
Easting 480.91 +- 5.28 Longitude 116.801
Northing 6620.81 +- 6.71 Latitude -30.545
Depth 4.06 +- 12.01
Nearest recorder = 11.3 km Gap = 170.1 deg Accuracy = B
Effects Code = Imax = 0 Fault =
11 km NE ( 52 deg) of BAL
WESTERN AUSTRALIA
180 km NE ( 30 deg) of PERTH
7 km NE ( 26 deg) of Ballidu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
PHASE INFORMATION
DATA USED
BAL i-P 35.30 0.05 1.71 35.39 -0.09 11.3 232 21.0 21.0
BAL i S 36.85 0.05 1.54 36.76 0.09 11.3 232 21.0 21.0
BAL e SG 101.00 0.30 0.61 36.76 64.24 11.3 232 21.0 21.0
KLB e PG 57.50 0.50 0.62 57.52 -0.02 147.8 142 1.7 1.7
KLB e S 74.40 0.20 0.67 74.24 0.16 147.8 142 1.7 1.7
MRWA e P 59.70 0.20 0.73 59.56 0.14 166.3 332 -30.8 30.8
MRWA i S 78.80 0.10 1.09 79.24 -0.44 166.3 332 -23.9 23.9
MUN e PG 60.80 0.10 0.84 60.92 -0.12 168.6 199 1.5 1.5
MUN e P 60.80 0.10 0.84 59.88 0.92 168.6 199 -30.8 30.8
MUN e S 79.80 0.20 0.66 79.81 -0.01 168.6 199 -23.9 23.9
Velocity Ratios
BAL
BAL 1.82
0.08