Data Report
Bulletin / 1993 JAN-MAR
Contributed by CUPWA
Date 1993-01-04
Origin Time 1238 29.14 +- 0.00
Zone 50
Easting 618.76 +- 0.00 Longitude 118.241
Northing 6598.49 +- 0.00 Latitude -30.740
Depth 1.00 +- 0.00 C
Arrival times = 4 S.D. = 0.008 Seismographs = 3
Nearest recorder = 1.5 km Gap = 234.5 deg Accuracy = C
Effects Code = Imax = 0 Fault =
1 km W (268 deg) of MBS
WESTERN AUSTRALIA
264 km NE ( 60 deg) of PERTH
20 km N ( 11 deg) of Mukinbudin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBS S-P 0.20 4.00 0.79 0.22 -0.02 1.5 88 0.0 0.0
MBW S-P 0.30 0.05 1.87 0.30 0.00 2.3 322 0.0 0.0
MBE S-P 0.60 0.05 1.80 0.60 0.00 5.1 56 0.0 0.0
MBE P 30.00 0.10 1.56 30.00 0.00 5.1 56 14.3 14.3
4 times used, S = 0.008
NO VELOCITY RATIOS
Date 1993-01-08
Origin Time 1455 26.27 +- 0.00
Zone 50
Easting 618.87 +- 0.00 Longitude 118.242
Northing 6598.46 +- 0.00 Latitude -30.741
Depth 1.00 +- 0.00 C
Arrival times = 4 S.D. = 0.007 Seismographs = 3
Nearest recorder = 1.4 km Gap = 234.6 deg Accuracy = C
Effects Code = Imax = 0 Fault =
1 km W (266 deg) of MBS
WESTERN AUSTRALIA
264 km NE ( 60 deg) of PERTH
20 km N ( 11 deg) of Mukinbudin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBS S-P 0.20 5.00 0.76 0.21 -0.01 1.4 86 0.0 0.0
MBW S-P 0.31 0.05 1.87 0.31 0.00 2.4 321 0.0 0.0
MBW P 26.72 0.10 1.63 26.72 0.00 2.4 321 28.5 28.5
MBE S-P 0.60 5.00 0.72 0.59 0.01 5.0 55 0.0 0.0
4 times used, S = 0.007
NO VELOCITY RATIOS
Date 1993-01-09
Origin Time 1540 21.65 +- 0.82
Zone 50
Easting 500.23 +- 5.03 Longitude 117.002
Northing 6492.80 +- 7.46 Latitude -31.700
Depth 5.05 +- 23.49
Arrival times = 8 S.D. = 0.155 Seismographs = 5
Nearest recorder = 36.8 km Gap = 166.7 deg Accuracy = A
Effects Code = Imax = 0 Fault =
5 km W (286 deg) of ME3
WESTERN AUSTRALIA
113 km E ( 76 deg) of PERTH
8 km S (185 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 2.6
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
GOO S-P 4.30 0.50 0.99 4.21 0.09 36.8 337 0.0 0.0
KLB i-P 33.50 0.10 1.29 33.57 -0.07 72.8 80 4.2 4.2
KLB i S 42.00 0.10 1.16 41.83 0.17 72.8 80 4.2 4.2
MUN S-P 9.50 0.50 0.93 9.21 0.29 81.2 247 0.0 0.0
MUN i-P 34.90 0.10 1.28 34.93 -0.03 81.2 247 3.7 3.7
BAL i-P 41.90 0.10 1.24 41.86 0.04 124.4 346 -30.8 30.8
BAL i S 56.00 0.20 0.97 56.05 -0.05 124.4 346 2.5 2.5
COOL e SG 133.00 1.00 0.44 133.48 -0.48 404.8 78 0.8 0.8
8 times used, S = 0.155
Deferred Data
ME3 S-P 2.00 5.00 0.71 0.86 1.14 5.5 106 0.0 0.0
MUN w S 43.50 0.10 0.82 44.14 -0.64 81.2 247 3.7 3.7
MRWA w P 65.00 1.00 0.52 63.02 1.98 291.5 340 -42.2 42.2
MRWA e SN 95.00 1.00 0.30 93.86 1.14 291.5 340 -40.3 40.3
MRWA w S 98.00 1.00 0.26 99.00 -1.00 291.5 340 -23.9 23.9
COOL e P 76.00 0.30 0.62 76.73 -0.73 404.8 78 -42.2 42.2
Velocity Ratios
KLB BAL
KLB 1.72 1.67
0.02 0.08
BAL 1.67 1.70
0.08 0.02
Date 1993-01-12
Origin Time 0448 41.98 +- 0.00
Zone 50
Easting 411.42 +- 0.00 Longitude 116.145
Northing 7618.48 +- 0.00 Latitude -21.534
Depth 5.00 +- 0.00 N
Arrival times = 4 S.D. = 0.025 Seismographs = 2
Nearest recorder = 130.2 km Gap = 330.5 deg Accuracy = D
Effects Code = Imax = 0 Fault =
26 km E ( 83 deg) of LP05
WESTERN AUSTRALIA
115 km SW (211 deg) of Dampier
107 km E ( 84 deg) of Onslow
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
NANU e P 63.00 0.30 0.69 62.98 0.02 130.2 210 -30.8 30.8
NANU w S 78.00 2.00 0.43 77.97 0.03 130.2 210 2.2 2.2
MRWA e P 151.00 1.00 0.45 151.01 -0.01 851.1 180 -42.2 42.2
MRWA e S 232.00 1.00 0.41 231.99 0.01 851.1 180 -40.3 40.3
4 times used, S = 0.025
Deferred Data
MBL e P 71.70 0.30 0.64 94.62 -22.92 384.8 84 -42.2 42.2
Velocity Ratios
NANU MRWA
NANU 1.71 1.75
0.12 0.06
MRWA 1.75 1.74
0.06 0.03
Date 1993-01-12
Origin Time 1329 5.41 +- 0.00
Zone 50
Easting 372.00 +- 0.00 Longitude 115.673
Northing 6680.21 +- 0.00 Latitude -30.002
Depth 5.00 +- 0.00 N
Arrival times = 4 S.D. = 6.406 Seismographs = 4
Nearest recorder = 92.4 km Gap = 212.7 deg Accuracy = D
Effects Code = Imax = 0 Fault =
92 km S (199 deg) of MRWA
WESTERN AUSTRALIA
217 km N (355 deg) of PERTH
171 km SE (143 deg) of GERALDTON
44 km SE (118 deg) of Eneabba
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MRWA e P 21.00 0.50 0.64 20.50 0.50 92.4 19 3.3 3.3
BAL e P 30.00 0.50 0.63 24.99 5.01 119.9 124 2.5 2.5
MUN e P 42.00 0.50 0.60 38.72 3.28 224.9 167 -42.2 42.2
KLB e P 34.00 0.50 0.59 43.73 -9.73 266.3 132 -42.2 42.2
4 times used, S = 6.406
NO VELOCITY RATIOS
Date 1993-01-13
Origin Time 1916 13.74 +- 382.26
Zone 51
Easting 650.18 +-13098.93 Longitude 124.590
Northing 6456.63 +-4559.08 Latitude -32.016
Depth 5.00 +-17800.41 N
Arrival times = 7 S.D. =34.538 Seismographs = 4
Nearest recorder = 350.6 km Gap = 337.9 deg Accuracy = D
Effects Code = Imax = 0 Fault =
265 km E (106 deg) of KMBL
WESTERN AUSTRALIA
826 km E ( 93 deg) of PERTH
143 km W (271 deg) of Cocklebiddy
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
COOL i P 40.50 0.10 1.12 62.28 -21.78 350.6 290 -42.2 42.2
COOL e S 85.50 0.30 0.57 98.43 -12.93 350.6 290 -40.3 40.3
BAL e P 163.00 0.50 0.53 112.60 50.40 767.0 279 -42.2 42.2
MUN e P 110.00 0.50 0.53 115.70 -5.70 792.7 268 -42.2 42.2
MUN e S 173.00 0.50 0.47 191.44 -18.44 792.7 268 -40.3 40.3
MRWA e P 183.00 0.50 0.52 126.41 56.59 881.2 288 -42.2 42.2
MRWA e S 245.50 0.50 0.47 210.09 35.41 881.2 288 -40.3 40.3
7 times used, S =34.538
Velocity Ratios
COOL MUN MRWA
COOL 2.68 1.26 1.12
0.02 0.02 0.01
MUN 1.26 1.65 0.99
0.02 0.01 0.03
MRWA 1.12 0.99 1.37
0.01 0.03 0.01
Date 1993-01-15
Origin Time 0645 42.64 +- 0.00
Zone 52
Easting 383.98 +- 0.00 Longitude 127.901
Northing 7960.21 +- 0.00 Latitude -18.445
Depth 1.00 +- 0.00 C
Arrival times = 4 S.D. = 0.400 Seismographs = 3
Nearest recorder = 312.1 km Gap = 144.1 deg Accuracy = C
Effects Code = Imax = 0 Fault =
312 km S (197 deg) of KNA
WESTERN AUSTRALIA
34 km SE (134 deg) of HALLS CREEK
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KNA S-P 33.10 1.00 0.72 32.95 0.15 312.1 17 0.0 0.0
WRA e P 133.20 0.50 0.53 133.57 -0.37 697.7 104 -42.2 42.2
WRA e S 201.70 1.00 0.42 201.09 0.61 697.7 104 -40.3 40.3
MBL S-P 86.00 1.00 0.65 85.68 0.32 900.5 248 0.0 0.0
4 times used, S = 0.400
Deferred Data
KNA e P 73.90 0.20 0.69 86.92 -13.02 312.1 17 -42.2 42.2
KNA e S 107.00 0.50 0.52 119.87 -12.87 312.1 17 -40.3 40.3
MTN e P 130.00 0.50 0.53 134.96 -4.96 709.4 29 -42.2 42.2
MTN e S 199.00 1.00 0.42 203.51 -4.51 709.4 29 -40.3 40.3
WARB S-P 91.50 2.00 0.56 82.67 8.83 866.7 188 0.0 0.0
WARB w P 156.50 2.00 0.40 154.02 2.48 866.7 188 -42.2 42.2
WARB w S 248.00 1.00 0.42 236.68 11.32 866.7 188 -40.3 40.3
MBL w P 129.00 1.00 0.46 158.07 -29.07 900.5 248 -42.2 42.2
MBL e S 215.00 0.50 0.47 243.75 -28.75 900.5 248 -40.3 40.3
Velocity Ratios
WRA
WRA 1.76
0.02
Date 1993-01-17
Origin Time 0046 18.79 +- 0.72
Zone 50
Easting 506.68 +- 4.12 Longitude 117.070
Northing 6494.05 +- 6.40 Latitude -31.689
Depth 6.97 +- 23.57
Arrival times = 7 S.D. = 0.165 Seismographs = 4
Nearest recorder = 38.7 km Gap = 167.4 deg Accuracy = A
Effects Code = Imax = 0 Fault =
3 km N ( 21 deg) of ME3
WESTERN AUSTRALIA
119 km E ( 76 deg) of PERTH
9 km SE (139 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 2.6
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
GOO i S 29.80 0.30 0.98 29.66 0.14 38.7 327 10.6 10.6
KLB i-P 29.70 0.10 1.30 29.66 0.04 66.3 80 6.3 6.3
KLB i S 37.20 0.20 1.02 37.20 -0.00 66.3 80 6.3 6.3
MUN i-P 33.00 0.10 1.27 33.14 -0.14 87.7 248 4.7 4.7
MUN e S 43.40 0.30 0.64 43.09 0.31 87.7 248 4.7 4.7
BAL e P 39.00 0.20 0.75 38.89 0.11 124.8 343 -30.8 30.8
BAL e S 53.00 0.20 0.68 53.33 -0.33 124.8 343 3.3 3.3
7 times used, S = 0.165
Deferred Data
ME3 S-P 2.00 5.00 0.72 0.89 1.11 3.1 201 0.0 0.0
MRWA e P 61.70 0.20 0.70 60.07 1.63 292.6 339 -42.2 42.2
MRWA e S 96.50 0.30 0.58 90.87 5.63 292.6 339 -40.3 40.3
COOL e P 73.00 1.00 0.49 72.86 0.14 398.2 78 -42.2 42.2
COOL e S 112.00 1.00 0.44 113.14 -1.14 398.2 78 -40.3 40.3
COOL e SG 127.00 1.00 0.44 128.81 -1.81 398.2 78 1.1 1.1
Velocity Ratios
KLB MUN BAL
KLB 1.69 0.00 1.70
0.03 0.00 0.10
MUN 0.00 1.73 1.60
0.00 0.03 0.17
BAL 1.70 1.60 1.69
0.10 0.17 0.03
Date 1993-01-18
Origin Time 1046 43.78 +- 1.83
Zone 50
Easting 525.47 +- 7.03 Longitude 117.270
Northing 6461.74 +- 15.89 Latitude -31.980
Depth -2.60 +- 34.28
Arrival times = 6 S.D. = 0.106 Seismographs = 3
Nearest recorder = 63.3 km Gap = 222.7 deg Accuracy = A
Effects Code = Imax = 0 Fault =
1 km N (348 deg) of QUW
WESTERN AUSTRALIA
134 km E ( 92 deg) of PERTH
36 km NE ( 64 deg) of Beverley
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 2.7
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB i+P 54.20 0.10 1.31 54.11 0.09 63.3 47 -2.1 -2.1
KLB e S 61.00 0.30 0.66 61.28 -0.28 63.3 47 -2.1 -2.1
MUN i-P 60.10 0.10 1.26 60.14 -0.04 100.3 269 -1.3 -1.3
MUN e S 71.50 0.50 0.58 71.48 0.02 100.3 269 -1.3 -1.3
BAL i-P 69.80 0.10 1.21 69.80 0.00 161.4 340 -30.8 30.8
BAL e S 88.40 0.20 0.66 88.35 0.05 161.4 340 -0.8 -0.8
6 times used, S = 0.106
Deferred Data
QUA S-P 5.00 5.00 0.75 0.37 4.63 2.3 175 0.0 0.0
RKG e P 87.10 0.30 0.39 87.55 -0.45 288.1 184 -30.8 30.8
RKG e SG 123.00 1.00 0.46 123.37 -0.37 288.1 184 -0.5 -0.5
MRWA e P 90.00 0.50 0.57 90.58 -0.58 329.5 338 -42.2 42.2
MRWA PG 97.50 0.50 0.82 97.54 -0.04 329.5 338 -0.4 -0.4
MRWA e S 124.00 0.50 0.52 125.35 -1.35 329.5 338 -40.3 40.3
MRWA e S 131.00 1.00 0.25 131.57 -0.57 329.5 338 -23.9 23.9
COOL e P 96.90 0.20 0.68 97.68 -0.78 388.1 72 -42.2 42.2
COOL e PG 106.20 0.10 0.78 107.08 -0.88 388.1 72 -0.3 -0.3
COOL e S 137.00 0.30 0.56 137.71 -0.71 388.1 72 -40.3 40.3
COOL e SG 148.00 0.50 0.51 150.98 -2.98 388.1 72 -0.3 -0.3
MEEK e P 125.00 0.50 0.54 124.05 0.95 606.2 12 -42.2 42.2
MEEK w S 196.00 2.00 0.38 183.63 12.37 606.2 12 -40.3 40.3
Velocity Ratios
KLB MUN BAL
KLB 1.65 0.00 1.76
0.05 0.00 0.06
MUN 0.00 1.70 1.74
0.00 0.04 0.11
BAL 1.76 1.74 1.71
0.06 0.11 0.01
Date 1993-01-18
Origin Time 2145 33.03 +- 0.00
Zone 50
Easting 618.96 +- 0.00 Longitude 118.243
Northing 6598.28 +- 0.00 Latitude -30.742
Depth 1.00 +- 0.00 C
Arrival times = 4 S.D. = 0.006 Seismographs = 3
Nearest recorder = 1.3 km Gap = 243.6 deg Accuracy = C
Effects Code = Imax = 0 Fault =
1 km W (258 deg) of MBS
WESTERN AUSTRALIA
264 km NE ( 60 deg) of PERTH
20 km N ( 12 deg) of Mukinbudin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBS S-P 0.20 5.00 0.76 0.21 -0.01 1.3 78 0.0 0.0
MBW S-P 0.33 0.05 1.86 0.33 0.00 2.6 321 0.0 0.0
MBW e P 33.51 0.10 1.13 33.51 0.00 2.6 321 26.7 26.7
MBE S-P 0.60 5.00 0.72 0.59 0.01 5.1 53 0.0 0.0
4 times used, S = 0.006
NO VELOCITY RATIOS
Date 1993-01-18
Origin Time 2303 32.38 +- 14.98
Zone 50
Easting 524.52 +- 55.79 Longitude 117.259
Northing 6464.62 +- 146.20 Latitude -31.954
Depth 1.00 +- 936.90 C
Arrival times = 5 S.D. = 0.318 Seismographs = 3
Nearest recorder = 62.1 km Gap = 218.4 deg Accuracy = B
Effects Code = Imax = 0 Fault =
4 km NW (324 deg) of QUW
WESTERN AUSTRALIA
133 km E ( 91 deg) of PERTH
34 km S (175 deg) of Cunderdin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.7
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB e P 42.60 0.20 0.80 42.52 0.08 62.1 49 1.2 1.2
KLB e S 49.60 0.30 0.66 49.55 0.05 62.1 49 1.2 1.2
MUN e P 48.20 0.20 0.77 48.59 -0.39 99.4 268 0.7 0.7
MUN e S 60.30 0.30 0.64 59.83 0.47 99.4 268 0.7 0.7
BAL e S 76.00 0.50 0.55 76.12 -0.12 158.3 340 0.5 0.5
5 times used, S = 0.318
Deferred Data
QUW S-P 5.00 5.00 0.49 0.58 4.42 4.9 144 0.0 0.0
QUA S-P 5.00 5.00 0.48 0.68 4.32 5.9 150 0.0 0.0
Velocity Ratios
KLB MUN
KLB 1.69 0.00
0.06 0.00
MUN 0.00 1.76
0.00 0.04
Date 1993-01-19
Origin Time 0002 41.16 +- 0.00
Zone 50
Easting 525.86 +- 0.00 Longitude 117.274
Northing 6460.81 +- 0.00 Latitude -31.988
Depth 1.00 +- 0.00 C
Arrival times = 4 S.D. = 0.043 Seismographs = 3
Nearest recorder = 63.7 km Gap = 224.0 deg Accuracy = B
Effects Code = Imax = 0 Fault =
1 km W (276 deg) of QUW
WESTERN AUSTRALIA
135 km E ( 92 deg) of PERTH
36 km NE ( 66 deg) of Beverley
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.1
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB e P 51.50 0.30 0.74 51.55 -0.05 63.7 46 1.2 1.2
KLB e S 58.80 0.30 0.66 58.75 0.05 63.7 46 1.2 1.2
MUN e P 57.60 0.20 0.77 57.58 0.02 100.7 270 0.7 0.7
BAL e S 86.00 0.50 0.55 86.01 -0.01 162.4 340 0.5 0.5
4 times used, S = 0.043
Deferred Data
QUW S-P 5.00 5.00 0.53 0.23 4.77 1.5 96 0.0 0.0
QUA S-P 5.00 5.00 0.51 0.27 4.73 2.0 130 0.0 0.0
MUN e S 69.60 0.30 0.64 68.97 0.63 100.7 270 0.7 0.7
Velocity Ratios
KLB
KLB 1.71
0.08
Date 1993-01-19
Origin Time 0344 43.05 +- 0.00
Zone 50
Easting 618.87 +- 0.00 Longitude 118.242
Northing 6598.46 +- 0.00 Latitude -30.741
Depth 1.00 +- 0.00 C
Arrival times = 4 S.D. = 0.008 Seismographs = 3
Nearest recorder = 1.4 km Gap = 234.6 deg Accuracy = C
Effects Code = Imax = 0 Fault =
1 km W (266 deg) of MBS
WESTERN AUSTRALIA
264 km NE ( 60 deg) of PERTH
20 km N ( 11 deg) of Mukinbudin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBS S-P 0.20 5.00 0.76 0.21 -0.01 1.4 86 0.0 0.0
MBW S-P 0.31 0.05 1.87 0.31 0.00 2.4 321 0.0 0.0
MBW e P 43.50 2.00 0.62 43.50 0.00 2.4 321 28.5 28.5
MBE S-P 0.60 5.00 0.72 0.59 0.01 5.0 55 0.0 0.0
4 times used, S = 0.008
NO VELOCITY RATIOS
Date 1993-01-19
Origin Time 0439 7.64 +- 130.14
Zone 50
Easting 618.92 +- 796.80 Longitude 118.242
Northing 6598.22 +-2282.08 Latitude -30.743
Depth 1.19 +-2123.76
Arrival times = 5 S.D. = 0.012 Seismographs = 3
Nearest recorder = 1.4 km Gap = 247.1 deg Accuracy = A
Effects Code = Imax = 0 Fault =
1 km W (256 deg) of MBS
WESTERN AUSTRALIA
264 km NE ( 60 deg) of PERTH
20 km N ( 12 deg) of Mukinbudin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBS S-P 0.23 5.00 1.67 0.23 0.00 1.4 76 0.0 0.0
MBW S-P 0.33 0.10 1.62 0.34 -0.01 2.6 323 0.0 0.0
MBW P 8.14 0.10 1.62 8.13 0.01 2.6 323 29.7 29.7
MBE S-P 0.62 0.10 1.56 0.60 0.02 5.1 52 0.0 0.0
MBE P 8.50 0.10 1.56 8.51 -0.01 5.1 52 16.2 16.2
5 times used, S = 0.012
Deferred Data
MBC S-P 0.10 0.10 1.68 0.28 -0.18 1.9 31 0.0 0.0
KLB S-P 12.00 1.00 0.79 11.85 0.15 104.7 205 0.0 0.0
KLB P 25.00 0.20 1.09 24.72 0.28 104.7 205 0.8 0.8
KLB i S 37.30 0.20 0.98 36.56 0.74 104.7 205 0.8 0.8
BAL S-P 17.00 0.10 1.22 17.04 -0.04 147.9 275 0.0 0.0
BAL e P 31.70 1.00 0.54 31.45 0.25 147.9 275 -30.8 30.8
BAL S 48.70 0.30 0.88 48.49 0.21 147.9 275 0.6 0.6
MUN S 72.50 0.50 0.42 71.64 0.86 237.0 234 -23.9 23.9
MRWA S-P 30.00 10.00 0.46 29.60 0.40 274.8 307 0.0 0.0
MRWA w S 80.80 0.50 0.30 81.18 -0.38 274.8 307 -23.9 23.9
COOL e PG 52.00 1.00 0.51 53.04 -1.04 278.3 93 0.3 0.3
COOL e SN 78.00 1.00 0.30 77.79 0.21 278.3 93 -40.3 40.3
NO VELOCITY RATIOS
Date 1993-01-19
Origin Time 0622 0.04 +- 0.00
Zone 50
Easting 618.66 +- 0.00 Longitude 118.240
Northing 6598.18 +- 0.00 Latitude -30.743
Depth 1.00 +- 0.00 C
Arrival times = 4 S.D. = 0.011 Seismographs = 3
Nearest recorder = 1.6 km Gap = 251.8 deg Accuracy = C
Effects Code = Imax = 0 Fault =
1 km W (257 deg) of MBS
WESTERN AUSTRALIA
264 km NE ( 60 deg) of PERTH
20 km N ( 11 deg) of Mukinbudin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBS S-P 0.20 5.00 0.76 0.23 -0.03 1.6 76 0.0 0.0
MBW S-P 0.32 0.05 1.86 0.32 0.00 2.5 328 0.0 0.0
MBW P 0.50 0.10 1.62 0.50 0.00 2.5 328 27.5 27.5
MBE S-P 0.63 0.05 1.79 0.62 0.01 5.4 54 0.0 0.0
4 times used, S = 0.011
NO VELOCITY RATIOS
Date 1993-01-20
Origin Time 1533 22.60 +- 0.48
Zone 50
Easting 504.21 +- 3.87 Longitude 117.044
Northing 6498.50 +- 4.53 Latitude -31.649
Depth 4.33 +- 10.90
Arrival times = 7 S.D. = 0.119 Seismographs = 5
Nearest recorder = 33.6 km Gap = 160.0 deg Accuracy = A
Effects Code = Imax = 0 Fault =
33 km SE (147 deg) of GOO
WESTERN AUSTRALIA
118 km E ( 74 deg) of PERTH
4 km SE (122 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 3.5
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
GOO e P 28.10 0.10 0.96 28.13 -0.03 33.6 327 7.8 7.8
GOO e S 32.20 0.10 0.87 31.97 0.23 33.6 327 7.8 7.8
KLB i-P 33.80 0.10 1.30 33.74 0.06 68.2 84 3.9 3.9
MUN i-P 36.80 0.10 1.28 36.84 -0.04 87.2 244 3.0 3.0
MUN e S 46.80 0.20 0.70 46.71 0.09 87.2 244 3.0 3.0
BAL i+P 42.00 0.10 1.24 42.17 -0.17 119.9 344 2.2 2.2
MRWA i+P 63.60 0.10 1.15 63.56 0.04 287.6 339 -42.2 42.2
7 times used, S = 0.119
Deferred Data
MUN S-P 10.00 0.10 1.28 9.87 0.13 87.2 244 0.0 0.0
BAL e S 54.80 0.20 0.68 55.74 -0.94 119.9 344 2.2 2.2
NWA e S 65.00 5.00 0.24 62.06 2.94 142.8 172 1.9 1.9
MBW e P 47.30 0.20 0.69 46.76 0.54 152.2 47 -30.8 30.8
MBW e S 65.00 0.40 0.51 64.67 0.33 152.2 47 1.7 1.7
MBE S 65.00 5.00 0.34 66.02 -1.02 157.1 48 1.7 1.7
RKG e P 69.50 0.50 0.57 67.95 1.55 323.9 180 -42.2 42.2
RKG e PG 73.00 0.50 0.57 75.44 -2.44 323.9 180 0.8 0.8
RKG e S 108.70 0.50 0.29 108.19 0.51 323.9 180 -23.9 23.9
COOL e P 76.40 0.30 0.62 77.15 -0.75 399.7 78 -42.2 42.2
MEEK e P 97.50 0.20 0.65 98.44 -0.94 575.8 15 -42.2 42.2
MEEK e S 153.00 1.00 0.43 154.82 -1.82 575.8 15 -40.3 40.3
NANU e P 152.40 0.30 0.57 152.10 0.30 1019.9 351 -42.2 42.2
NANU e S 247.00 1.00 0.40 248.24 -1.24 1019.9 351 -40.3 40.3
FORT e P 156.00 0.50 0.43 156.68 -0.68 1057.7 87 -42.2 42.2
FORT e S 256.50 0.50 0.39 256.21 0.29 1057.7 87 -40.3 40.3
FORT e SG 306.00 0.50 0.39 314.79 -8.79 1057.7 87 0.2 0.2
WARB e P 162.50 0.50 0.51 163.99 -1.49 1118.0 59 -42.2 42.2
WARB e S 271.00 0.50 0.46 268.95 2.05 1118.0 59 -40.3 40.3
WARB e SG 325.00 1.00 0.40 331.43 -6.43 1118.0 59 0.2 0.2
Velocity Ratios
GOO MUN
GOO 1.75 1.68
0.05 0.07
MUN 1.68 1.70
0.07 0.03
Date 1993-01-21
Origin Time 0858 50.57 +- 0.00
Zone 50
Easting 618.91 +- 0.00 Longitude 118.242
Northing 6598.37 +- 0.00 Latitude -30.742
Depth 1.00 +- 0.00 C
Arrival times = 4 S.D. = 0.006 Seismographs = 3
Nearest recorder = 1.3 km Gap = 239.1 deg Accuracy = C
Effects Code = Imax = 0 Fault =
1 km W (262 deg) of MBS
WESTERN AUSTRALIA
264 km NE ( 60 deg) of PERTH
20 km N ( 12 deg) of Mukinbudin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBS S-P 0.20 5.00 0.76 0.21 -0.01 1.3 82 0.0 0.0
MBW S-P 0.32 0.05 1.86 0.32 0.00 2.5 321 0.0 0.0
MBW P 51.03 0.10 1.62 51.03 0.00 2.5 321 27.6 27.6
MBE S-P 0.60 5.00 0.72 0.59 0.01 5.0 54 0.0 0.0
4 times used, S = 0.006
NO VELOCITY RATIOS
Date 1993-01-22
Origin Time 1622 19.61 +- 42.56
Zone 52
Easting 617.60 +- 172.79 Longitude 130.170
Northing 7183.41 +- 355.66 Latitude -25.462
Depth 5.00 +- 285.08 N
Arrival times = 6 S.D. = 1.919 Seismographs = 3
Nearest recorder = 362.5 km Gap = 193.3 deg Accuracy = D
Effects Code = Imax = 0 Fault =
362 km E ( 78 deg) of WARB
NORTHERN TERRITORY
87 km W (262 deg) of AYERS ROCK
Record Dur Sync Unc Resp Seismometer Recorder Pol
ASPA 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
WARB e P 68.40 0.50 0.57 69.58 -1.18 362.5 256 -42.2 42.2
WARB e S 109.50 1.00 0.45 106.79 2.71 362.5 256 -40.3 40.3
ASPA e P 76.80 0.50 0.56 77.34 -0.54 426.5 63 -42.2 42.2
ASPA e S 123.00 1.00 0.44 120.30 2.70 426.5 63 -40.3 40.3
WRA e P 114.60 0.10 0.73 116.07 -1.47 747.1 35 -42.2 42.2
WRA e S 189.50 1.00 0.41 187.74 1.76 747.1 35 -40.3 40.3
6 times used, S = 1.919
Deferred Data
NANU w P 170.00 5.00 0.33 211.55 -41.55 1537.0 279 -42.2 42.2
Velocity Ratios
WARB ASPA WRA
WARB 1.84 0.00 1.73
0.04 0.00 0.07
ASPA 0.00 1.81 1.76
0.00 0.03 0.08
WRA 1.73 1.76 1.79
0.07 0.08 0.01
Date 1993-01-24
Origin Time 1950 56.08 +- 0.00
Zone 49
Easting 734.73 +- 0.00 Longitude 113.242
Northing 7798.03 +- 0.00 Latitude -19.900
Depth 5.00 +- 0.00 N
Arrival times = 4 S.D. = 0.751 Seismographs = 3
Nearest recorder = 375.5 km Gap = 336.4 deg Accuracy = C
Effects Code = Imax = 0 Fault =
331 km NW (303 deg) of LP05
WESTERN AUSTRALIA
373 km W (282 deg) of Dampier
242 km NW (337 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 2.7
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
NANU e P 108.00 0.20 0.68 107.58 0.42 375.5 141 -42.2 42.2
NANU e S 146.00 0.30 0.56 145.93 0.07 375.5 141 -40.3 40.3
MEEK e S 264.00 1.00 0.41 262.58 1.42 929.2 144 -40.3 40.3
MRWA e S 292.00 2.00 0.35 292.27 -0.27 1070.4 165 -40.3 40.3
4 times used, S = 0.751
Velocity Ratios
NANU
NANU 1.73
0.01
Date 1993-01-26
Origin Time 1009 5.99 +- 1.76
Zone 50
Easting 503.80 +- 3.89 Longitude 117.040
Northing 6498.85 +- 6.47 Latitude -31.645
Depth 5.00 +- 123.23 N
Arrival times = 6 S.D. = 0.111 Seismographs = 3
Nearest recorder = 68.5 km Gap = 159.4 deg Accuracy = A
Effects Code = Imax = 0 Fault =
33 km SE (147 deg) of GOO
WESTERN AUSTRALIA
118 km E ( 74 deg) of PERTH
3 km SE (121 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
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB e P 17.40 0.10 0.91 17.20 0.20 68.5 85 4.4 4.4
KLB i S 24.90 0.10 1.17 24.98 -0.08 68.5 85 4.4 4.4
MUN e P 20.10 0.10 0.89 20.20 -0.10 86.9 244 3.5 3.5
MUN e S 30.10 0.10 0.80 30.05 0.05 86.9 244 3.5 3.5
BAL e P 25.50 0.10 0.87 25.49 0.01 119.4 344 2.5 2.5
BAL e S 39.00 0.10 0.78 39.01 -0.01 119.4 344 2.5 2.5
6 times used, S = 0.111
Deferred Data
MRWA e SG 83.00 1.00 0.36 85.31 -2.31 287.1 339 1.1 1.1
Velocity Ratios
KLB MUN BAL
KLB 1.66 0.00 1.74
0.02 0.00 0.07
MUN 0.00 1.71 1.65
0.00 0.02 0.10
BAL 1.74 1.65 1.69
0.07 0.10 0.01
Date 1993-01-28
Origin Time 2046 14.50 +- 2.64
Zone 50
Easting 488.87 +- 17.82 Longitude 116.887
Northing 6917.24 +- 10.86 Latitude -27.869
Depth 5.00 +- 23.51 N
Arrival times = 9 S.D. = 0.540 Seismographs = 5
Nearest recorder = 173.0 km Gap = 201.7 deg Accuracy = B
Effects Code = Imax = 0 Fault =
173 km NE ( 30 deg) of MRWA
WESTERN AUSTRALIA
463 km N ( 13 deg) of PERTH
97 km W (283 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 -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MRWA i+P 41.00 0.10 1.20 41.51 -0.51 173.0 209 -30.8 30.8
MEEK e P 47.00 0.10 0.82 47.10 -0.10 218.7 51 -42.2 42.2
MEEK i PG 50.00 0.40 0.89 50.20 -0.20 218.7 51 1.4 1.4
MEEK e SG 75.00 1.00 0.47 74.95 0.05 218.7 51 1.4 1.4
BAL e P 57.80 0.20 0.69 57.36 0.44 303.8 183 -42.2 42.2
KLB e P 72.00 0.10 0.77 71.53 0.47 421.0 168 -42.2 42.2
KLB e SN 114.00 0.10 0.46 113.97 0.03 421.0 168 -40.3 40.3
KLB i SG 130.00 1.00 0.63 130.81 -0.81 421.0 168 0.7 0.7
MUN i-P 76.90 0.10 1.10 76.24 0.66 460.0 187 -42.2 42.2
9 times used, S = 0.540
Deferred Data
BAL e S 95.00 0.50 0.29 94.95 0.05 303.8 183 -23.9 23.9
MUN e SN 123.00 0.50 0.33 122.17 0.83 460.0 187 -40.3 40.3
MUN e SG 140.00 1.00 0.44 141.58 -1.58 460.0 187 0.7 0.7
COOL w SN 135.00 2.00 0.25 137.28 -2.28 531.5 130 -40.3 40.3
COOL w S 157.00 2.00 0.21 152.48 4.52 531.5 130 -23.9 23.9
NO VELOCITY RATIOS
Date 1993-02-01
Origin Time 1108 53.04 +- 1.13
Zone 50
Easting 508.61 +- 10.37 Longitude 117.090
Northing 6591.78 +- 8.43 Latitude -30.807
Depth 5.00 +- 18.75 N
Arrival times = 7 S.D. = 0.302 Seismographs = 4
Nearest recorder = 42.9 km Gap = 175.1 deg Accuracy = B
Effects Code = Imax = 0 Fault =
4 km W (274 deg) of CAS
WESTERN AUSTRALIA
173 km NE ( 43 deg) of PERTH
5 km N (349 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 1.9
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BAL e P 60.10 0.10 0.95 60.09 0.01 42.9 301 7.0 7.0
BAL e S 64.90 0.20 0.74 64.98 -0.08 42.9 301 7.0 7.0
KLB e P 70.50 0.10 0.88 70.66 -0.16 107.9 144 2.8 2.8
KLB e S 82.90 0.20 0.69 82.88 0.02 107.9 144 2.8 2.8
MUN e P 78.10 0.20 0.74 77.47 0.63 154.5 212 -30.8 30.8
MUN e S 95.40 0.20 0.67 95.76 -0.36 154.5 212 1.9 1.9
MRWA e S 107.00 0.50 0.54 107.09 -0.09 205.3 328 -40.3 40.3
7 times used, S = 0.302
Deferred Data
MRWA e P 85.00 1.00 0.52 83.98 1.02 205.3 328 -42.2 42.2
MRWA e SG 108.50 0.50 0.54 109.77 -1.27 205.3 328 1.5 1.5
Velocity Ratios
BAL KLB MUN
BAL 1.68 1.73 1.69
0.05 0.07 0.05
KLB 1.73 1.71 1.64
0.07 0.02 0.12
MUN 1.69 1.64 1.69
0.05 0.12 0.02
Date 1993-02-03
Origin Time 0505 38.10 +- 0.00
Zone 50
Easting 619.06 +- 0.00 Longitude 118.244
Northing 6598.11 +- 0.00 Latitude -30.744
Depth 1.00 +- 0.00 C
Arrival times = 4 S.D. = 0.005 Seismographs = 3
Nearest recorder = 1.2 km Gap = 252.7 deg Accuracy = C
Effects Code = Imax = 0 Fault =
1 km W (249 deg) of MBS
WESTERN AUSTRALIA
264 km NE ( 60 deg) of PERTH
20 km N ( 12 deg) of Mukinbudin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBS S-P 0.20 5.00 0.76 0.20 -0.00 1.2 69 0.0 0.0
MBW S-P 0.35 0.05 1.85 0.35 0.00 2.8 322 0.0 0.0
MBW i P 38.61 0.10 1.61 38.61 0.00 2.8 322 25.0 25.0
MBE S-P 0.60 5.00 0.71 0.59 0.01 5.1 50 0.0 0.0
4 times used, S = 0.005
NO VELOCITY RATIOS
Date 1993-02-05
Origin Time 0400 43.15 +- 0.50
Zone 50
Easting 505.69 +- 2.97 Longitude 117.060
Northing 6492.78 +- 4.56 Latitude -31.700
Depth 4.29 +- 11.53
Arrival times = 8 S.D. = 0.111 Seismographs = 5
Nearest recorder = 39.3 km Gap = 168.9 deg Accuracy = B
Effects Code = Imax = 0 Fault =
1 km N ( 5 deg) of ME3
WESTERN AUSTRALIA
118 km E ( 77 deg) of PERTH
9 km SE (149 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 2.2
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
GOO S-P 4.40 0.10 1.36 4.47 -0.07 39.3 329 0.0 0.0
KLB i-P 54.10 0.10 1.30 54.18 -0.08 67.5 79 3.9 3.9
KLB i S 61.90 0.20 1.02 61.83 0.07 67.5 79 3.9 3.9
MUN e P 57.30 0.20 0.78 57.25 0.05 86.3 248 3.0 3.0
MUN e S 67.00 0.20 0.70 67.02 -0.02 86.3 248 3.0 3.0
BAL i+P 63.70 0.10 1.24 63.62 0.08 125.8 344 -30.8 30.8
BAL e S 78.00 0.20 0.68 77.92 0.08 125.8 344 2.1 2.1
MRWA e P 84.50 0.50 0.58 84.83 -0.33 293.4 339 -42.2 42.2
8 times used, S = 0.111
Deferred Data
GOO e P 49.00 0.10 0.95 49.60 -0.60 39.3 329 6.7 6.7
MRWA e S 117.20 0.50 0.52 115.89 1.31 293.4 339 -40.3 40.3
Velocity Ratios
KLB MUN BAL
KLB 1.71 0.00 1.68
0.03 0.00 0.08
MUN 0.00 1.69 1.72
0.00 0.04 0.15
BAL 1.68 1.72 1.70
0.08 0.15 0.02
Date 1993-02-05
Origin Time 1229 45.44 +- 1.05
Zone 50
Easting 484.38 +- 6.65 Longitude 116.837
Northing 6632.98 +- 4.70 Latitude -30.435
Depth 5.00 +- 9.42 N
Arrival times = 8 S.D. = 0.281 Seismographs = 4
Nearest recorder = 22.8 km Gap = 177.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
3 km W (260 deg) of DAM
WESTERN AUSTRALIA
193 km NE ( 30 deg) of PERTH
19 km N ( 19 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 1.9
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BAL i-P 49.10 0.10 1.42 49.25 -0.15 22.8 213 13.1 13.1
BAL e S 52.00 0.20 0.78 51.90 0.10 22.8 213 13.1 13.1
KLB e P 70.40 0.30 0.68 70.00 0.40 155.5 145 -30.8 30.8
KLB e S 88.00 0.30 0.61 88.42 -0.42 155.5 145 2.0 2.0
MRWA e P 70.20 0.20 0.74 70.28 -0.08 157.5 328 -30.8 30.8
MRWA e S 88.90 0.20 0.66 88.93 -0.03 157.5 328 -23.9 23.9
MUN e P 74.00 0.30 0.67 73.47 0.53 181.2 199 -42.2 42.2
MUN e S 94.50 0.30 0.60 94.42 0.08 181.2 199 -40.3 40.3
8 times used, S = 0.281
Velocity Ratios
BAL KLB MRWA MUN
BAL 1.79 1.69 1.75 1.71
0.11 0.06 0.04 0.05
KLB 1.69 1.71 0.00 0.00
0.06 0.03 0.00 0.00
MRWA 1.75 0.00 1.76 0.00
0.04 0.00 0.02 0.00
MUN 1.71 0.00 0.00 1.72
0.05 0.00 0.00 0.03
Date 1993-02-05
Origin Time 1229 45.29 +- 0.97
Zone 50
Easting 485.37 +- 7.29 Longitude 116.848
Northing 6633.57 +- 4.79 Latitude -30.430
Depth 2.00 +- 16.69 N
Arrival times = 7 S.D. = 0.190 Seismographs = 4
Nearest recorder = 23.8 km Gap = 177.9 deg Accuracy = C
Effects Code = Imax = 0 Fault =
2 km W (271 deg) of DAM
WESTERN AUSTRALIA
194 km NE ( 30 deg) of PERTH
20 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 1.9
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BAL i-P 49.10 0.10 1.41 49.19 -0.09 23.8 214 5.5 5.5
BAL e S 52.00 0.20 0.77 51.90 0.10 23.8 214 5.5 5.5
KLB e P 70.40 0.30 0.68 70.09 0.31 155.5 146 -30.8 30.8
KLB e S 88.00 0.30 0.61 88.23 -0.23 155.5 146 0.8 0.8
MRWA e P 70.20 0.20 0.74 70.38 -0.18 157.5 328 -30.8 30.8
MRWA e S 88.90 0.20 0.66 88.79 0.11 157.5 328 0.8 0.8
MUN e P 74.00 0.30 0.67 73.75 0.25 182.1 199 -42.2 42.2
7 times used, S = 0.190
Deferred Data
MUN e S 94.50 0.30 0.60 94.99 -0.49 182.1 199 -40.3 40.3
Velocity Ratios
BAL KLB MRWA
BAL 1.76 1.69 1.75
0.10 0.06 0.04
KLB 1.69 1.70 0.00
0.06 0.03 0.00
MRWA 1.75 0.00 1.75
0.04 0.00 0.02
Date 1993-02-07
Origin Time 0551 39.38 +- 1.18
Zone 50
Easting 438.88 +- 7.12 Longitude 116.363
Northing 6623.15 +- 4.41 Latitude -30.522
Depth 5.00 +- 10.92 N
Arrival times = 9 S.D. = 0.352 Seismographs = 5
Nearest recorder = 34.3 km Gap = 161.0 deg Accuracy = B
Effects Code = Imax = 0 Fault =
34 km W (285 deg) of BAL
WESTERN AUSTRALIA
166 km N ( 17 deg) of PERTH
5 km S (165 deg) of Miling
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BAL i-P 45.00 0.10 1.37 45.04 -0.04 34.3 105 8.8 8.8
BAL e S 49.00 0.30 0.70 48.96 0.04 34.3 105 8.8 8.8
MRWA i+P 62.90 0.10 1.22 63.01 -0.11 148.8 346 -30.8 30.8
MUN e P 65.30 0.20 0.74 64.86 0.44 162.0 185 -30.8 30.8
MUN e S 83.80 0.20 0.66 84.03 -0.23 162.0 185 -23.9 23.9
KLB e P 66.60 0.20 0.73 67.07 -0.47 178.4 132 -42.2 42.2
KLB e S 88.00 0.30 0.61 87.77 0.23 178.4 132 -40.3 40.3
MEEK e P 105.00 0.50 0.55 103.98 1.02 483.4 27 -42.2 42.2
MEEK e S 151.80 0.30 0.55 152.02 -0.22 483.4 27 -40.3 40.3
9 times used, S = 0.352
Deferred Data
MRWA e S 79.00 1.00 0.48 80.52 -1.52 148.8 346 2.0 2.0
COOL e P 103.00 0.50 0.56 101.13 1.87 459.9 96 -42.2 42.2
COOL e S 146.00 0.30 0.55 147.08 -1.08 459.9 96 -40.3 40.3
COOL e SG 165.30 0.30 0.55 166.44 -1.14 459.9 96 0.7 0.7
Velocity Ratios
BAL MUN KLB MEEK
BAL 1.71 1.71 1.81 1.71
0.09 0.05 0.05 0.03
MUN 1.71 1.71 0.00 1.71
0.05 0.02 0.00 0.04
KLB 1.81 0.00 1.79 1.66
0.05 0.00 0.02 0.05
MEEK 1.71 1.71 1.66 1.71
0.03 0.04 0.05 0.02
Date 1993-02-07
Origin Time 0804 2.99 +- 1.05
Zone 50
Easting 577.83 +- 3.63 Longitude 117.813
Northing 6597.60 +- 3.86 Latitude -30.752
Depth 5.00 +- 7.10 N
Arrival times = 11 S.D. = 0.399 Seismographs = 5
Nearest recorder = 93.2 km Gap = 139.7 deg Accuracy = B
Effects Code = Imax = 0 Fault =
7 km NW (325 deg) of BENC
WESTERN AUSTRALIA
229 km NE ( 55 deg) of PERTH
8 km NW (335 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 2.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB e P 18.00 0.30 0.71 18.23 -0.23 93.2 183 3.3 3.3
KLB e S 29.00 0.30 0.64 28.79 0.21 93.2 183 3.3 3.3
BAL e P 20.20 0.20 0.76 20.50 -0.30 107.2 278 2.8 2.8
BAL e S 33.00 0.30 0.63 32.64 0.36 107.2 278 2.8 2.8
BAL e SMS 35.80 0.20 0.38 36.48 -0.68 107.2 278 -37.0 37.0
MUN e P 34.50 0.30 0.66 33.82 0.68 204.4 227 -42.2 42.2
MUN e S 56.60 0.30 0.60 56.85 -0.25 204.4 227 -40.3 40.3
MUN e SMS 59.00 0.10 0.41 59.45 -0.45 204.4 227 -27.5 27.5
MRWA e S 65.50 0.20 0.64 65.23 0.27 244.2 313 -40.3 40.3
MRWA e SMS 68.80 0.20 0.35 69.26 -0.46 244.2 313 -26.3 26.3
COOL e S 81.00 0.30 0.57 81.08 -0.08 319.3 93 -40.3 40.3
11 times used, S = 0.399
Velocity Ratios
KLB BAL MUN
KLB 1.73 0.00 1.67
0.06 0.00 0.10
BAL 0.00 1.74 1.65
0.00 0.04 0.10
MUN 1.67 1.65 1.70
0.10 0.10 0.03
Date 1993-02-08
Origin Time 2028 44.01 +- 6.48
Zone 51
Easting 280.25 +- 116.80 Longitude 120.943
Northing 8196.49 +- 151.82 Latitude -16.303
Depth 5.00 +- 166.79 N
Arrival times = 6 S.D. = 0.208 Seismographs = 5
Nearest recorder = 550.6 km Gap = 248.3 deg Accuracy = B
Effects Code = Imax = 0 Fault =
533 km NE ( 26 deg) of RP02
WESTERN AUSTRALIA
230 km NW (323 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
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBL S-P 54.00 0.10 1.08 54.04 -0.04 550.6 192 0.0 0.0
KNA S-P 80.00 0.10 1.03 79.99 0.01 840.1 86 0.0 0.0
MEEK e P 192.00 1.00 0.44 191.70 0.30 1170.6 191 -42.2 42.2
WARB e P 200.00 1.00 0.44 200.48 -0.48 1243.3 152 -42.2 42.2
WARB e S 317.00 1.00 0.40 316.62 0.38 1243.3 152 -40.3 40.3
MRWA e P 234.00 1.00 0.44 234.03 -0.03 1520.9 198 -42.2 42.2
6 times used, S = 0.208
Deferred Data
MEEK e S 305.00 1.00 0.40 301.33 3.67 1170.6 191 -40.3 40.3
MRWA e S 374.00 1.00 0.40 375.03 -1.03 1520.9 198 -40.3 40.3
Velocity Ratios
WARB
WARB 1.75
0.02
Date 1993-02-09
Origin Time 0624 48.33 +- 0.00
Zone 50
Easting 619.01 +- 0.00 Longitude 118.243
Northing 6598.19 +- 0.00 Latitude -30.743
Depth 1.00 +- 0.00 C
Arrival times = 4 S.D. = 0.005 Seismographs = 3
Nearest recorder = 1.3 km Gap = 248.2 deg Accuracy = C
Effects Code = Imax = 0 Fault =
1 km W (254 deg) of MBS
WESTERN AUSTRALIA
264 km NE ( 60 deg) of PERTH
20 km N ( 12 deg) of Mukinbudin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBS S-P 0.20 5.00 0.76 0.21 -0.01 1.3 74 0.0 0.0
MBW S-P 0.34 0.05 1.86 0.34 0.00 2.7 322 0.0 0.0
MBW P 48.82 0.10 1.62 48.82 0.00 2.7 322 25.8 25.8
MBE S-P 0.60 5.00 0.72 0.59 0.01 5.1 51 0.0 0.0
4 times used, S = 0.005
NO VELOCITY RATIOS
Date 1993-02-09
Origin Time 1715 41.51 +- 0.82
Zone 50
Easting 505.85 +- 7.06 Longitude 117.061
Northing 6591.11 +- 6.16 Latitude -30.813
Depth 5.00 +- 11.22 N
Arrival times = 8 S.D. = 0.365 Seismographs = 4
Nearest recorder = 40.9 km Gap = 173.0 deg Accuracy = B
Effects Code = Imax = 0 Fault =
6 km W (267 deg) of CAS
WESTERN AUSTRALIA
171 km NE ( 43 deg) of PERTH
6 km NW (318 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
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BAL i-P 47.90 0.10 1.36 48.24 -0.34 40.9 304 7.4 7.4
BAL e S 52.60 0.20 0.74 52.91 -0.31 40.9 304 7.4 7.4
KLB i-P 59.20 0.10 1.25 59.31 -0.11 109.0 142 2.8 2.8
KLB e S 71.40 0.20 0.69 71.65 -0.25 109.0 142 2.8 2.8
MUN e P 66.00 0.20 0.74 65.65 0.35 152.5 211 -30.8 30.8
MUN e S 84.00 0.30 0.61 83.66 0.34 152.5 211 2.0 2.0
MRWA i+P 72.80 0.10 1.18 72.35 0.45 204.4 329 -42.2 42.2
MRWA e S 95.70 0.30 0.60 95.38 0.32 204.4 329 -40.3 40.3
8 times used, S = 0.365
Deferred Data
CAS S-P 5.00 5.00 0.48 0.97 4.03 6.8 87 0.0 0.0
COOL e S 133.00 0.50 0.51 134.65 -1.65 390.8 92 -40.3 40.3
COOL e SG 148.00 0.50 0.51 149.47 -1.47 390.8 92 0.8 0.8
Velocity Ratios
BAL KLB MUN MRWA
BAL 1.74 1.66 1.73 1.73
0.06 0.07 0.06 0.03
KLB 1.66 1.69 1.85 1.79
0.07 0.02 0.16 0.06
MUN 1.73 1.85 1.73 1.72
0.06 0.16 0.03 0.17
MRWA 1.73 1.79 1.72 1.73
0.03 0.06 0.17 0.02
Date 1993-02-09
Origin Time 1816 38.29 +- 0.78
Zone 50
Easting 506.74 +- 7.10 Longitude 117.070
Northing 6592.10 +- 5.21 Latitude -30.804
Depth 5.00 +- 11.63 N
Arrival times = 8 S.D. = 0.339 Seismographs = 4
Nearest recorder = 41.1 km Gap = 174.0 deg Accuracy = B
Effects Code = Imax = 0 Fault =
5 km W (276 deg) of CAS
WESTERN AUSTRALIA
172 km NE ( 43 deg) of PERTH
6 km NW (331 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 2.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BAL i-P 44.90 0.10 1.36 45.06 -0.16 41.1 302 7.3 7.3
BAL e S 49.40 0.20 0.74 49.75 -0.35 41.1 302 7.3 7.3
KLB e P 56.00 0.10 0.88 56.13 -0.13 109.3 143 2.8 2.8
KLB e S 68.30 0.20 0.69 68.51 -0.21 109.3 143 2.8 2.8
MUN e P 63.00 0.30 0.68 62.61 0.39 153.8 211 -30.8 30.8
MUN e S 81.00 0.30 0.61 80.80 0.20 153.8 211 2.0 2.0
MRWA e P 69.70 0.30 0.67 69.08 0.62 204.0 329 -42.2 42.2
MRWA e S 92.60 0.50 0.54 92.08 0.52 204.0 329 -40.3 40.3
8 times used, S = 0.339
Deferred Data
CAS S-P 5.00 5.00 0.48 0.90 4.10 5.9 96 0.0 0.0
Velocity Ratios
BAL KLB MUN MRWA
BAL 1.68 1.70 1.75 1.74
0.06 0.07 0.07 0.06
KLB 1.70 1.69 1.81 1.77
0.07 0.02 0.19 0.11
MUN 1.75 1.81 1.73 0.00
0.07 0.19 0.03 0.00
MRWA 1.74 1.77 0.00 1.73
0.06 0.11 0.00 0.03
Date 1993-02-12
Origin Time 1312 50.67 +- 2.47
Zone 50
Easting 505.61 +- 5.75 Longitude 117.059
Northing 6502.69 +- 8.39 Latitude -31.611
Depth 5.00 +- 185.04 N
Arrival times = 6 S.D. = 0.102 Seismographs = 3
Nearest recorder = 66.5 km Gap = 154.5 deg Accuracy = A
Effects Code = Imax = 0 Fault =
11 km N ( 0 deg) of ME3
WESTERN AUSTRALIA
121 km E ( 72 deg) of PERTH
5 km NE ( 65 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 1.5
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB e P 61.50 0.10 0.91 61.56 -0.06 66.5 88 4.6 4.6
KLB e S 69.20 0.20 0.72 69.11 0.09 66.5 88 4.6 4.6
MUN e P 65.30 0.10 0.89 65.42 -0.12 90.3 242 3.3 3.3
MUN e S 75.80 0.20 0.70 75.65 0.15 90.3 242 3.3 3.3
BAL e P 69.70 0.20 0.76 69.65 0.05 116.2 343 2.6 2.6
BAL e S 82.80 0.20 0.68 82.82 -0.02 116.2 343 2.6 2.6
6 times used, S = 0.102
Deferred Data
MRWA e SG 126.80 0.20 0.63 129.18 -2.38 284.1 338 1.1 1.1
Velocity Ratios
KLB MUN BAL
KLB 1.71 0.00 1.66
0.03 0.00 0.11
MUN 0.00 1.72 0.00
0.00 0.03 0.00
BAL 1.66 0.00 1.69
0.11 0.00 0.03
Date 1993-02-13
Origin Time 1759 59.31 +- 70.92
Zone 48
Easting 297.85 +-3457.76 Longitude 102.846
Northing 6391.53 +- 460.51 Latitude -32.595
Depth 5.00 +-4480.50 N
Arrival times = 8 S.D. = 1.332 Seismographs = 4
Nearest recorder = 1264.2 km Gap = 346.3 deg Accuracy = D
Effects Code = Imax = 0 Fault =
1215 km SW (240 deg) of KBAR
Place names undefined for this area
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.1
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MUN e P 220.00 1.00 0.44 218.29 1.71 1264.2 90 -42.2 42.2
MUN e S 336.00 0.50 0.46 336.28 -0.28 1264.2 90 -40.3 40.3
MRWA e P 222.50 0.50 0.51 224.48 -1.98 1315.3 76 -42.2 42.2
MRWA e S 349.00 1.00 0.40 347.06 1.94 1315.3 76 -40.3 40.3
BAL e P 227.00 1.00 0.44 227.23 -0.23 1338.1 84 -42.2 42.2
BAL e S 352.00 2.00 0.35 351.85 0.15 1338.1 84 -40.3 40.3
KLB e P 238.00 1.00 0.44 236.88 1.12 1417.9 89 -42.2 42.2
KLB w S 368.00 0.10 0.64 368.64 -0.64 1417.9 89 -40.3 40.3
8 times used, S = 1.332
Velocity Ratios
MUN MRWA BAL KLB
MUN 1.72 0.00 0.00 0.00
0.01 0.00 0.00 0.00
MRWA 0.00 1.78 0.00 0.00
0.00 0.01 0.00 0.00
BAL 0.00 0.00 1.75 0.00
0.00 0.00 0.02 0.00
KLB 0.00 0.00 0.00 1.73
0.00 0.00 0.00 0.01
Date 1993-02-16
Origin Time 0703 20.20 +- 1.31
Zone 50
Easting 428.29 +- 7.60 Longitude 116.251
Northing 6599.29 +- 6.72 Latitude -30.737
Depth 5.00 +- 14.08 N
Arrival times = 8 S.D. = 0.374 Seismographs = 4
Nearest recorder = 46.0 km Gap = 170.0 deg Accuracy = B
Effects Code = Imax = 0 Fault =
46 km W (251 deg) of BAL
WESTERN AUSTRALIA
140 km N ( 16 deg) of PERTH
30 km S (198 deg) of Miling
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.3
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BAL i-P 27.70 0.10 1.34 27.75 -0.05 46.0 71 6.6 6.6
BAL e S 32.80 0.20 0.74 32.99 -0.19 46.0 71 6.6 6.6
MUN e P 42.00 0.20 0.75 42.26 -0.26 137.6 181 -30.8 30.8
MUN e S 58.00 0.30 0.62 58.25 -0.25 137.6 181 2.2 2.2
MRWA i-P 47.10 0.10 1.20 46.81 0.29 170.1 351 -30.8 30.8
MRWA e S 66.00 0.30 0.61 66.85 -0.85 170.1 351 -40.3 40.3
KLB e P 47.70 0.20 0.73 47.10 0.60 172.2 123 -30.8 30.8
KLB e S 67.30 0.30 0.61 67.29 0.01 172.2 123 -40.3 40.3
8 times used, S = 0.374
Deferred Data
BAL S-P 5.20 0.10 1.34 5.24 -0.04 46.0 71 0.0 0.0
MUN S-P 16.00 0.10 1.23 15.99 0.01 137.6 181 0.0 0.0
MRWA S-P 19.50 0.10 1.20 20.04 -0.54 170.1 351 0.0 0.0
KLB S-P 20.30 0.10 1.20 20.19 0.11 172.2 123 0.0 0.0
Velocity Ratios
BAL MUN MRWA KLB
BAL 1.68 1.76 1.71 1.72
0.05 0.07 0.04 0.05
MUN 1.76 1.73 0.00 0.00
0.07 0.03 0.00 0.00
MRWA 1.71 0.00 1.70 0.00
0.04 0.00 0.02 0.00
KLB 1.72 0.00 0.00 1.71
0.05 0.00 0.00 0.02
Date 1993-02-17
Origin Time 1454 11.18 +- 10.07
Zone 51
Easting 861.22 +- 22.71 Longitude 126.495
Northing 7576.73 +- 27.53 Latitude -21.876
Depth 5.00 +- 96.93 N
Arrival times = 8 S.D. = 0.827 Seismographs = 5
Nearest recorder = 477.9 km Gap = 151.9 deg Accuracy = C
Effects Code = Imax = 0 Fault =
472 km N (358 deg) of WBN
WESTERN AUSTRALIA
Record Dur Sync Unc Resp Seismometer Recorder Pol
ASPA 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.6
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
WARB i P 75.10 0.20 0.95 75.10 -0.00 477.9 178 -42.2 42.2
WARB e S 122.00 1.00 0.43 122.65 -0.65 477.9 178 -40.3 40.3
ASPA e P 113.80 0.30 0.58 113.06 0.74 791.7 106 -42.2 42.2
ASPA e S 189.50 0.50 0.47 188.74 0.76 791.7 106 -40.3 40.3
WRA e P 118.30 0.30 0.58 120.11 -1.81 850.2 76 -42.2 42.2
WRA e S 201.50 0.50 0.47 201.02 0.48 850.2 76 -40.3 40.3
MEEK i P 133.50 0.50 0.74 133.20 0.30 958.3 234 -42.2 42.2
MTN e P 153.00 1.00 0.44 152.60 0.40 1119.1 26 -42.2 42.2
8 times used, S = 0.827
Deferred Data
MBL S-P 62.00 0.10 1.05 66.96 -4.96 694.7 275 0.0 0.0
MEEK e S 225.00 1.00 0.40 223.80 1.20 958.3 234 -40.3 40.3
MTN e S 261.00 1.00 0.40 257.58 3.42 1119.1 26 -40.3 40.3
MTN e SG 338.00 1.00 0.40 320.33 17.67 1119.1 26 0.3 0.3
Velocity Ratios
WARB ASPA WRA
WARB 1.73 1.74 1.84
0.02 0.06 0.06
ASPA 1.74 1.74 0.00
0.06 0.01 0.00
WRA 1.84 0.00 1.78
0.06 0.00 0.01
Date 1993-02-21
Origin Time 1823 52.61 +- 22.47
Zone 50
Easting 149.32 +- 423.75 Longitude 113.596
Northing 7525.88 +- 482.22 Latitude -22.337
Depth 5.00 +- 815.84 N
Arrival times = 6 S.D. = 1.025 Seismographs = 3
Nearest recorder = 696.7 km Gap = 307.5 deg Accuracy = C
Effects Code = Imax = 0 Fault =
133 km NW (312 deg) of LP03
WESTERN AUSTRALIA
72 km SW (230 deg) of Exmouth
51 km W (259 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 2.8
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MEEK e P 144.00 0.50 0.53 143.01 0.99 696.7 134 -42.2 42.2
MEEK e S 211.00 0.10 0.66 210.17 0.83 696.7 134 -40.3 40.3
MRWA e P 156.00 1.00 0.46 155.42 0.58 799.6 163 -42.2 42.2
MRWA e S 231.00 0.10 0.65 231.78 -0.78 799.6 163 -40.3 40.3
WARB e P 226.00 1.00 0.44 227.36 -1.36 1394.4 110 -42.2 42.2
WARB e S 356.00 1.00 0.40 357.04 -1.04 1394.4 110 -40.3 40.3
6 times used, S = 1.025
Velocity Ratios
MEEK MRWA WARB
MEEK 1.73 0.00 1.77
0.01 0.00 0.05
MRWA 0.00 1.73 1.79
0.00 0.02 0.07
WARB 1.77 1.79 1.75
0.05 0.07 0.02
Date 1993-02-22
Origin Time 1156 26.63 +- 4.64
Zone 53
Easting 366.14 +- 54.70 Longitude 133.723
Northing 7822.06 +- 19.84 Latitude -19.692
Depth 5.00 +- 61.04 N
Arrival times = 8 S.D. = 0.788 Seismographs = 6
Nearest recorder = 442.2 km Gap = 198.0 deg Accuracy = D
Effects Code = Imax = 0 Fault =
25 km NW (313 deg) of TCBY
NORTHERN TERRITORY
859 km S (159 deg) of DARWIN
48 km W (264 deg) of TENNANT CREEK
Record Dur Sync Unc Resp Seismometer Recorder Pol
ASPA 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.2
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
ASPA e P 86.70 0.20 0.67 86.26 0.44 442.2 177 -42.2 42.2
ASPA e S 131.20 0.50 0.50 130.62 0.58 442.2 177 -40.3 40.3
KNA S-P 67.00 0.20 0.92 66.03 0.97 684.4 309 0.0 0.0
MTN e P 130.00 0.30 0.58 130.32 -0.32 807.1 339 -42.2 42.2
WARB e P 156.30 0.30 0.57 156.65 -0.35 1024.5 223 -42.2 42.2
FORT e P 196.00 0.50 0.51 196.97 -0.97 1358.2 203 -42.2 42.2
FORT e S 323.50 1.00 0.40 323.38 0.12 1358.2 203 -40.3 40.3
MBL S-P 136.00 0.50 0.72 136.79 -0.79 1474.0 261 0.0 0.0
8 times used, S = 0.788
Deferred Data
MTN e S 210.80 0.30 0.52 207.35 3.45 807.1 339 -40.3 40.3
WARB e S 257.70 0.50 0.46 253.17 4.53 1024.5 223 -40.3 40.3
Velocity Ratios
ASPA FORT
ASPA 1.74 1.76
0.01 0.03
FORT 1.76 1.75
0.03 0.01
Date 1993-02-23
Origin Time 0043 39.51 +- 75.63
Zone 50
Easting 431.34 +- 258.49 Longitude 116.262
Northing 6307.69 +- 281.66 Latitude -33.368
Depth 1.00 +- 445.72
Arrival times = 5 S.D. = 0.445 Seismographs = 3
Nearest recorder = 102.9 km Gap = 296.3 deg Accuracy = D
Effects Code = Imax = 0 Fault = \
73 km W (290 deg) of BEAU
WESTERN AUSTRALIA
162 km S (166 deg) of PERTH
147 km NE ( 45 deg) of AUGUSTA
10 km E ( 89 deg) of Collie
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
NWAO e P 56.00 0.10 0.88 56.31 -0.31 102.9 61 0.7 0.7
NWAO e S 68.50 0.50 0.57 67.95 0.55 102.9 61 0.7 0.7
MUN e P 64.00 0.10 0.85 64.21 -0.21 154.1 358 -30.8 30.8
MUN e S 82.00 1.00 0.48 82.09 -0.09 154.1 358 0.5 0.5
KLB e P 76.00 0.50 0.59 75.33 0.67 242.0 35 -42.2 42.2
5 times used, S = 0.445
Deferred Data
NWAO P 57.20 10.00 0.19 57.05 0.15 102.9 61 -30.8 30.8
NWAO PMP 58.60 10.00 0.19 58.52 0.08 102.9 61 -41.8 41.8
NWAO SMS 72.80 10.00 0.16 72.75 0.05 102.9 61 -38.9 38.9
RKG S-P 17.00 10.00 0.31 17.33 -0.33 150.2 152 0.0 0.0
RKG P 63.70 10.00 0.18 63.66 0.04 150.2 152 -30.8 30.8
RKG SG 81.00 10.00 0.28 80.99 0.01 150.2 152 0.5 0.5
RKG S 81.60 10.00 0.15 81.61 -0.01 150.2 152 -23.9 23.9
MUN PG 64.70 10.00 0.30 64.65 0.05 154.1 358 0.5 0.5
MUN S 82.60 10.00 0.15 82.60 -0.00 154.1 358 -23.9 23.9
MUN SMS 84.40 10.00 0.15 84.38 0.02 154.1 358 -31.2 31.2
KLB e S 105.00 1.00 0.26 104.80 0.20 242.0 35 -23.9 23.9
BAL P 85.90 10.00 0.17 85.90 0.00 308.9 7 -30.8 30.8
BAL S 121.70 10.00 0.14 121.70 0.00 308.9 7 -23.9 23.9
BAL SG 124.80 10.00 0.26 124.85 -0.05 308.9 7 0.2 0.2
Velocity Ratios
NWAO MUN
NWAO 1.76 0.00
0.04 0.00
MUN 0.00 1.74
0.00 0.05
Date 1993-02-23
Origin Time 2255 44.56 +- 132.85
Zone 52
Easting 831.56 +- 234.23 Longitude 132.241
Northing 7418.88 +- 279.83 Latitude -23.306
Depth 5.00 +-1006.26 N
Arrival times = 5 S.D. = 0.543 Seismographs = 3
Nearest recorder = 174.9 km Gap = 151.2 deg Accuracy = D
Effects Code = Imax = 0 Fault =
174 km W (283 deg) of ASPA
NORTHERN TERRITORY
170 km W (281 deg) of ALICE SPRINGS
Record Dur Sync Unc Resp Seismometer Recorder Pol
ASPA 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.5
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
ASPA e P 71.90 0.30 0.67 71.85 0.05 174.9 104 -42.2 42.2
WRA e P 102.30 0.30 0.62 102.91 -0.61 431.9 30 -42.2 42.2
WRA e S 146.90 0.50 0.50 146.34 0.56 431.9 30 -40.3 40.3
WARB w P 130.00 2.00 0.42 129.26 0.74 649.7 239 -42.2 42.2
WARB e S 192.00 1.00 0.42 192.21 -0.21 649.7 239 -40.3 40.3
5 times used, S = 0.543
Deferred Data
ASPA e S 108.70 0.50 0.54 92.26 16.44 174.9 104 -40.3 40.3
Velocity Ratios
WRA WARB
WRA 1.77 0.00
0.02 0.00
WARB 0.00 1.73
0.00 0.05
Date 1993-02-27
Origin Time 2208 42.54 +- 1.61
Zone 51
Easting 435.96 +- 5.45 Longitude 122.317
Northing 6390.01 +- 13.25 Latitude -32.625
Depth 5.00 +- 19.69 N
Arrival times = 23 S.D. = 0.688 Seismographs = 11
Nearest recorder = 222.8 km Gap = 173.8 deg Accuracy = B
Effects Code = Imax = 0 Fault =
145 km S (163 deg) of KMBL
WESTERN AUSTRALIA
614 km E ( 99 deg) of PERTH
69 km SE (133 deg) of NORSEMAN
Record Dur Sync Unc Resp Seismometer Recorder Pol
ASPA 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.4
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
COOL i+P 76.00 0.10 1.17 75.62 0.38 222.8 329 -42.2 42.2
COOL e S 100.00 2.00 0.41 100.31 -0.31 222.8 329 -40.3 40.3
KLB w P 102.00 2.00 0.43 102.52 -0.52 445.4 283 -42.2 42.2
KLB w S 147.50 2.00 0.39 147.15 0.35 445.4 283 -40.3 40.3
NWAO i SG 175.00 0.50 0.71 174.56 0.44 477.9 264 0.6 0.6
RKG e P 115.00 1.00 0.48 113.73 1.27 538.2 244 -42.2 42.2
RKG e SG 190.00 1.00 0.43 191.21 -1.21 538.2 244 0.6 0.6
BAL w P 118.00 2.00 0.42 118.57 -0.57 578.1 291 -42.2 42.2
BAL w S 175.00 2.00 0.38 175.09 -0.09 578.1 291 -40.3 40.3
MUN e P 119.10 0.30 0.60 118.86 0.24 580.6 275 -42.2 42.2
MUN w PG 137.00 2.00 0.44 137.26 -0.26 580.6 275 0.5 0.5
MUN e S 176.00 1.00 0.34 175.60 0.40 580.6 275 -40.3 40.3
MUN w SG 200.00 2.00 0.27 202.93 -2.93 580.6 275 0.5 0.5
FORT i P 118.60 0.30 0.86 118.88 -0.28 580.9 71 -42.2 42.2
FORT e S 176.00 0.50 0.49 175.64 0.36 580.9 71 -40.3 40.3
MRWA e P 135.00 0.50 0.53 134.95 0.05 713.6 300 -42.2 42.2
MRWA e S 204.00 0.50 0.48 203.60 0.40 713.6 300 -40.3 40.3
MEEK i-P 139.20 0.10 1.04 139.93 -0.73 754.6 330 -42.2 42.2
MEEK e S 212.00 0.30 0.53 212.29 -0.29 754.6 330 -40.3 40.3
WARB e P 149.40 0.50 0.52 148.81 0.59 828.1 31 -42.2 42.2
WARB e S 229.00 1.00 0.41 227.75 1.25 828.1 31 -40.3 40.3
WRA e P 273.50 0.50 0.51 272.94 0.56 1854.7 43 -42.2 42.2
WRA e S 443.50 0.50 0.46 443.86 -0.36 1854.7 43 -40.3 40.3
23 times used, S = 0.688
Deferred Data
RKG e S 170.00 1.00 0.43 166.67 3.33 538.2 244 -40.3 40.3
ASPA i P 230.90 0.20 0.87 231.71 -0.81 1513.5 51 -42.2 42.2
ASPA e S 372.60 0.10 0.63 372.07 0.53 1513.5 51 -40.3 40.3
Velocity Ratios
COOL KLB BAL MUN FORT MRWA MEEK WARB WRA
COOL 1.72 0.00 1.79 1.76 1.78 1.76 1.77 1.76 1.74
0.07 0.00 0.19 0.09 0.08 0.06 0.04 0.06 0.02
KLB 0.00 1.77 0.00 0.00 0.00 0.00 1.73 1.72 1.73
0.00 0.10 0.00 0.00 0.00 0.00 0.17 0.16 0.04
BAL 1.79 0.00 1.76 0.00 0.00 0.00 0.00 0.00 1.73
0.19 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.04
MUN 1.76 0.00 0.00 1.74 0.00 1.76 1.79 1.75 1.73
0.09 0.00 0.00 0.02 0.00 0.19 0.10 0.12 0.02
FORT 1.78 0.00 0.00 0.00 1.75 1.71 1.75 1.72 1.73
0.08 0.00 0.00 0.00 0.01 0.15 0.07 0.10 0.02
MRWA 1.76 0.00 0.00 1.76 1.71 1.75 0.00 0.00 1.73
0.06 0.00 0.00 0.19 0.15 0.01 0.00 0.00 0.02
MEEK 1.77 1.73 0.00 1.79 1.75 0.00 1.75 0.00 1.72
0.04 0.17 0.00 0.10 0.07 0.00 0.00 0.00 0.01
WARB 1.76 1.72 0.00 1.75 1.72 0.00 0.00 1.74 1.73
0.06 0.16 0.00 0.12 0.10 0.00 0.00 0.02 0.03
WRA 1.74 1.73 1.73 1.73 1.73 1.73 1.72 1.73 1.74
0.02 0.04 0.04 0.02 0.02 0.02 0.01 0.03 0.01
Date 1993-03-02
Origin Time 0746 46.24 +- 158.67
Zone 50
Easting 618.97 +-1914.43 Longitude 118.243
Northing 6598.16 +-2816.83 Latitude -30.743
Depth 1.00 +-3422.71 C
Arrival times = 5 S.D. = 0.012 Seismographs = 3
Nearest recorder = 1.3 km Gap = 250.2 deg Accuracy = D
Effects Code = Imax = 0 Fault =
1 km W (253 deg) of MBS
WESTERN AUSTRALIA
264 km NE ( 60 deg) of PERTH
20 km N ( 12 deg) of Mukinbudin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBS e P 46.53 0.10 1.17 46.54 -0.01 1.3 73 44.7 44.7
MBS e S 46.76 0.10 1.05 46.75 0.01 1.3 73 44.7 44.7
MBW e P 46.74 0.10 1.13 46.72 0.02 2.7 323 25.8 25.8
MBW e S 47.06 0.10 1.02 47.06 -0.00 2.7 323 25.8 25.8
MBE S-P 0.60 5.00 0.71 0.60 0.00 5.1 51 0.0 0.0
5 times used, S = 0.012
Velocity Ratios
MBS MBW
MBS 1.78 0.00
1.44 0.00
MBW 0.00 1.64
0.00 0.65
Date 1993-03-02
Origin Time 0757 53.54 +- 0.00
Zone 50
Easting 618.63 +- 0.00 Longitude 118.239
Northing 6598.34 +- 0.00 Latitude -30.742
Depth 1.06 +- 0.00
Arrival times = 4 S.D. = 0.003 Seismographs = 3
Nearest recorder = 1.6 km Gap = 244.6 deg Accuracy = A
Effects Code = Imax = 0 Fault =
1 km W (262 deg) of MBS
WESTERN AUSTRALIA
264 km NE ( 60 deg) of PERTH
20 km N ( 11 deg) of Mukinbudin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBS S-P 0.24 0.10 1.65 0.24 0.00 1.6 82 0.0 0.0
MBS e P 53.89 0.10 1.16 53.89 0.00 1.6 82 40.0 40.0
MBW S-P 0.31 0.10 1.63 0.31 0.00 2.3 327 0.0 0.0
MBE S-P 0.62 0.10 1.56 0.62 0.00 5.3 55 0.0 0.0
4 times used, S = 0.003
Deferred Data
MBS e S 54.13 0.10 1.04 54.13 0.00 1.6 82 40.0 40.0
MBC S-P 1.00 5.00 0.75 0.28 0.72 2.0 40 0.0 0.0
MBW e P 54.10 0.10 1.13 53.99 0.11 2.3 327 30.0 30.0
MBW e S 54.42 0.10 1.02 54.29 0.13 2.3 327 30.0 30.0
MBE e P 55.03 0.10 1.09 54.44 0.59 5.3 55 14.4 14.4
MBE e S 55.65 0.10 0.98 55.05 0.60 5.3 55 14.4 14.4
KLB e P 60.00 10.00 0.22 70.62 -10.62 104.7 205 0.7 0.7
NO VELOCITY RATIOS
Date 1993-03-03
Origin Time 0723 2.49 +- 25.18
Zone 50
Easting 187.50 +- 463.27 Longitude 113.955
Northing 7468.86 +- 504.98 Latitude -22.859
Depth 5.00 +- 844.09 N
Arrival times = 6 S.D. = 1.130 Seismographs = 3
Nearest recorder = 630.2 km Gap = 304.3 deg Accuracy = D
Effects Code = Imax = 0 Fault =
68 km NW (298 deg) of LP03
WESTERN AUSTRALIA
106 km S (190 deg) of Exmouth
69 km S (191 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 2.7
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MEEK e P 86.00 0.50 0.54 84.83 1.17 630.2 132 -42.2 42.2
MEEK e S 147.00 0.50 0.48 146.03 0.97 630.2 132 -40.3 40.3
MRWA e P 97.70 0.50 0.53 97.32 0.38 733.6 164 -42.2 42.2
MRWA e S 166.80 0.30 0.53 167.77 -0.97 733.6 164 -40.3 40.3
WARB e P 169.00 1.00 0.44 170.69 -1.69 1340.3 108 -42.2 42.2
WARB e S 295.00 1.00 0.40 295.51 -0.51 1340.3 108 -40.3 40.3
6 times used, S = 1.130
Deferred Data
BAL e P 119.00 2.00 0.39 117.55 1.45 901.0 163 -42.2 42.2
BAL e S 207.00 1.00 0.41 203.01 3.99 901.0 163 -40.3 40.3
Velocity Ratios
MEEK MRWA WARB
MEEK 1.73 0.00 1.78
0.02 0.00 0.05
MRWA 0.00 1.73 1.80
0.00 0.01 0.06
WARB 1.78 1.80 1.76
0.05 0.06 0.02
Date 1993-03-05
Origin Time 0353 18.52 +- 4.50
Zone 50
Easting 430.56 +- 23.23 Longitude 116.253
Northing 6306.21 +- 31.80 Latitude -33.381
Depth 5.00 +- 35.95 N
Arrival times = 7 S.D. = 0.689 Seismographs = 3
Nearest recorder = 104.3 km Gap = 297.2 deg Accuracy = C
Effects Code = Imax = 0 Fault =
73 km W (289 deg) of BEAU
WESTERN AUSTRALIA
163 km S (167 deg) of PERTH
146 km NE ( 45 deg) of AUGUSTA
10 km E ( 97 deg) of Collie
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
NWAO S-P 12.00 0.10 1.26 11.82 0.18 104.3 61 0.0 0.0
NWAO e P 34.90 0.20 0.77 35.56 -0.66 104.3 61 2.9 2.9
NWAO e S 46.80 0.30 0.64 47.38 -0.58 104.3 61 2.9 2.9
MUN e P 43.00 0.50 0.62 43.08 -0.08 155.6 358 -30.8 30.8
MUN e S 61.00 0.20 0.67 61.51 -0.51 155.6 358 1.9 1.9
KLB e P 55.30 0.30 0.65 54.10 1.20 243.7 35 -42.2 42.2
KLB e S 81.70 0.30 0.59 80.65 1.05 243.7 35 -40.3 40.3
7 times used, S = 0.689
Deferred Data
BAL e P 65.30 0.20 0.69 62.18 3.12 310.5 8 -42.2 42.2
BAL e S 102.00 0.50 0.52 94.72 7.28 310.5 8 -40.3 40.3
MRWA w P 82.00 2.00 0.43 80.51 1.49 462.1 356 -42.2 42.2
Velocity Ratios
NWAO MUN KLB
NWAO 1.73 0.00 1.71
0.04 0.00 0.07
MUN 0.00 1.74 1.68
0.00 0.04 0.16
KLB 1.71 1.68 1.72
0.07 0.16 0.02
Date 1993-03-05
Origin Time 2222 16.73 +- 7.57
Zone 53
Easting 400.44 +- 51.91 Longitude 134.049
Northing 7804.01 +- 26.74 Latitude -19.857
Depth 1.00 +- 72.75 G
Arrival times = 7 S.D. = 0.737 Seismographs = 5
Nearest recorder = 32.0 km Gap = 129.8 deg Accuracy = C
Effects Code = Imax = 0 Fault =
8 km E ( 76 deg) of TCCY
NORTHERN TERRITORY
889 km SE (158 deg) of DARWIN
27 km SW (211 deg) of TENNANT CREEK
Record Dur Sync Unc Resp Seismometer Recorder Pol
ASPA 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 3.2
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
WRA i-P 21.80 0.10 1.38 21.96 -0.16 32.0 107 2.4 2.4
ASPA i+P 75.30 0.10 1.10 74.57 0.73 423.8 182 -42.2 42.2
ASPA e S 117.60 0.50 0.50 117.56 0.04 423.8 182 -40.3 40.3
KNA e S-P 69.00 1.00 0.46 69.72 -0.72 722.5 308 0.0 0.0
MTN e S 205.00 0.30 0.52 204.36 0.64 836.5 337 -40.3 40.3
WARB e P 147.00 0.30 0.57 148.52 -1.52 1035.5 225 -42.2 42.2
WARB e S 246.00 0.30 0.51 246.32 -0.32 1035.5 225 -40.3 40.3
7 times used, S = 0.737
Deferred Data
MTN e SG 253.00 0.50 0.47 247.82 5.18 836.5 337 0.1 0.1
FORT e P 185.00 0.50 0.43 187.18 -2.18 1355.5 205 -42.2 42.2
FORT e S 314.00 1.00 0.32 313.63 0.37 1355.5 205 -40.3 40.3
MBL e S-P 139.00 2.00 0.28 139.86 -0.86 1505.1 261 0.0 0.0
MEEK e P 230.50 0.50 0.43 236.97 -6.47 1766.9 241 -42.2 42.2
MEEK e S 397.00 0.50 0.39 400.31 -3.31 1766.9 241 -40.3 40.3
Velocity Ratios
ASPA WARB
ASPA 1.72 1.79
0.01 0.02
WARB 1.79 1.76
0.02 0.01
Date 1993-03-07
Origin Time 2231 5.20 +- 1.16
Zone 50
Easting 442.53 +- 9.86 Longitude 116.399
Northing 6595.74 +- 7.02 Latitude -30.770
Depth 0.80 +- 34.82
Arrival times = 7 S.D. = 0.054 Seismographs = 4
Nearest recorder = 34.5 km Gap = 159.6 deg Accuracy = A
Effects Code = Imax = 0 Fault =
34 km SW (238 deg) of BAL
WESTERN AUSTRALIA
141 km N ( 22 deg) of PERTH
32 km S (172 deg) of Miling
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.7
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BAL i-P 10.80 0.10 1.37 10.84 -0.04 34.5 58 1.8 1.8
BAL i S 14.80 0.20 1.08 14.75 0.05 34.5 58 1.8 1.8
MUN e S 42.60 0.30 0.62 42.55 0.05 135.2 187 0.4 0.4
KLB e P 30.50 0.50 0.61 30.53 -0.03 158.4 125 -30.8 30.8
KLB e S 49.00 0.30 0.61 48.97 0.03 158.4 125 0.4 0.4
MRWA e P 33.00 0.50 0.61 33.04 -0.04 176.3 347 -30.8 30.8
MRWA e S 54.00 0.50 0.55 53.91 0.09 176.3 347 0.4 0.4
7 times used, S = 0.054
Deferred Data
MUN e P 22.50 0.30 0.69 27.26 -4.76 135.2 187 0.4 0.4
Velocity Ratios
BAL KLB MRWA
BAL 1.71 1.74 1.77
0.07 0.08 0.08
KLB 1.74 1.73 0.00
0.08 0.05 0.00
MRWA 1.77 0.00 1.76
0.08 0.00 0.05
Date 1993-03-08
Origin Time 1142 52.60 +- 4.16
Zone 51
Easting 270.70 +- 26.39 Longitude 120.793
Northing 7664.35 +- 24.09 Latitude -21.108
Depth 5.00 +- 40.71 N
Arrival times = 12 S.D. = 1.125 Seismographs = 8
Nearest recorder = 99.9 km Gap = 145.3 deg Accuracy = C
Effects Code = Imax = 0 Fault =
99 km E ( 86 deg) of MBL
WESTERN AUSTRALIA
247 km E (112 deg) of PORT HEDLAND
109 km E ( 87 deg) of Marble Bar
Record Dur Sync Unc Resp Seismometer Recorder Pol
ASPA 0.00 Seismograph details unknown
MRWA -0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.4
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBL e S-P 12.50 1.00 0.56 11.31 1.19 99.9 266 0.0 0.0
MEEK e P 138.50 0.30 0.59 137.60 0.90 652.1 199 -42.2 42.2
MEEK e S 201.00 0.30 0.53 200.77 0.23 652.1 199 -40.3 40.3
MEEK e SG 233.00 1.00 0.42 232.75 0.25 652.1 199 0.5 0.5
WARB e P 159.00 0.10 0.72 157.87 1.13 819.8 134 -42.2 42.2
MRWA e P 181.00 0.50 0.51 182.35 -1.35 1022.4 207 -42.2 42.2
MRWA e S 276.40 0.50 0.46 278.69 -2.29 1022.4 207 -40.3 40.3
COOL e P 190.40 0.50 0.51 189.79 0.61 1083.7 178 -42.2 42.2
COOL e S 292.00 0.50 0.46 291.63 0.37 1083.7 178 -40.3 40.3
ASPA e P 225.60 0.30 0.56 226.15 -0.55 1384.4 104 -42.2 42.2
WRA e P 229.60 0.30 0.56 231.03 -1.43 1424.9 87 -42.2 42.2
MTN e P 232.70 0.30 0.56 232.00 0.70 1433.2 51 -42.2 42.2
12 times used, S = 1.125
Deferred Data
MBL i-P 72.00 0.10 1.26 68.92 3.08 99.9 266 3.0 3.0
MBL e S 84.50 0.50 0.58 80.23 4.27 99.9 266 3.0 3.0
WARB e S 241.00 1.00 0.41 236.05 4.95 819.8 134 -40.3 40.3
KNA e S-P 91.00 1.00 0.45 97.06 -6.06 1030.7 56 0.0 0.0
BAL w P 194.00 2.00 0.39 195.50 -1.50 1131.1 200 -42.2 42.2
BAL e S 298.50 1.00 0.40 301.57 -3.07 1131.1 200 -40.3 40.3
KLB e P 205.00 0.50 0.51 204.04 0.96 1201.8 193 -42.2 42.2
KLB e S 315.00 0.50 0.46 316.45 -1.45 1201.8 193 -40.3 40.3
MUN e P 216.00 0.50 0.51 214.76 1.24 1290.5 199 -42.2 42.2
MUN e S 333.00 0.50 0.46 335.11 -2.11 1290.5 199 -40.3 40.3
FORT e P 216.00 0.50 0.51 215.50 0.50 1296.7 147 -42.2 42.2
FORT e S 340.00 2.00 0.35 336.40 3.60 1296.7 147 -40.3 40.3
NWAO e P 224.00 1.00 0.44 222.95 1.05 1358.2 194 -42.2 42.2
NWAO e S 348.50 1.00 0.40 349.37 -0.87 1358.2 194 -40.3 40.3
ASPA e S 356.90 0.50 0.46 354.94 1.96 1384.4 104 -40.3 40.3
WRA e S 362.60 0.50 0.46 363.43 -0.83 1424.9 87 -40.3 40.3
MTN e S 367.00 2.00 0.35 365.12 1.88 1433.2 51 -40.3 40.3
Velocity Ratios
MEEK MRWA COOL
MEEK 1.73 1.77 1.75
0.01 0.05 0.04
MRWA 1.77 1.74 0.00
0.05 0.01 0.00
COOL 1.75 0.00 1.74
0.04 0.00 0.01
Date 1993-03-11
Origin Time 2216 32.35 +- 8.63
Zone 50
Easting 252.06 +- 68.75 Longitude 114.606
Northing 7614.89 +- 35.04 Latitude -21.552
Depth 5.00 +- 58.60 N
Arrival times = 7 S.D. = 0.679 Seismographs = 4
Nearest recorder = 143.6 km Gap = 275.4 deg Accuracy = C
Effects Code = Imax = 0 Fault =
133 km W (270 deg) of LP05
WESTERN AUSTRALIA
95 km NE ( 35 deg) of Learmonth
54 km W (279 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 3.5
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
NANU i+P 55.90 0.10 1.22 55.23 0.67 143.6 140 -30.8 30.8
MBL i+P 104.20 0.20 0.94 104.22 -0.02 543.9 86 -42.2 42.2
MBL e S 157.00 0.30 0.54 157.66 -0.66 543.9 86 -40.3 40.3
MEEK e P 123.00 0.20 0.64 122.54 0.46 695.0 145 -42.2 42.2
MEEK e S 190.00 0.30 0.53 189.55 0.45 695.0 145 -40.3 40.3
MRWA e P 142.30 0.20 0.63 142.54 -0.24 860.7 170 -42.2 42.2
MRWA e S 223.00 0.50 0.47 224.38 -1.38 860.7 170 -40.3 40.3
7 times used, S = 0.679
Deferred Data
BAL e P 162.00 0.50 0.51 162.39 -0.39 1024.8 168 -42.2 42.2
BAL e S 258.70 0.50 0.46 258.93 -0.23 1024.8 168 -40.3 40.3
KLB e P 178.00 0.50 0.51 178.19 -0.19 1155.5 164 -42.2 42.2
KLB e S 283.50 0.50 0.46 286.46 -2.96 1155.5 164 -40.3 40.3
MUN e P 179.30 0.30 0.56 179.47 -0.17 1166.1 172 -42.2 42.2
MUN e S 288.00 1.00 0.40 288.68 -0.68 1166.1 172 -40.3 40.3
COOL e P 188.00 0.50 0.51 186.31 1.69 1222.5 149 -42.2 42.2
COOL e S 297.70 0.50 0.46 300.59 -2.89 1222.5 149 -40.3 40.3
NWAO e P 193.30 0.50 0.51 194.05 -0.75 1286.7 168 -42.2 42.2
NWAO e S 313.50 1.00 0.40 314.06 -0.56 1286.7 168 -40.3 40.3
WARB e P 198.00 0.20 0.61 199.53 -1.53 1331.8 115 -42.2 42.2
WARB e S 324.50 0.50 0.46 323.60 0.90 1331.8 115 -40.3 40.3
Velocity Ratios
MBL MEEK MRWA
MBL 1.73 1.76 1.73
0.01 0.07 0.04
MEEK 1.76 1.74 1.71
0.07 0.01 0.08
MRWA 1.73 1.71 1.73
0.04 0.08 0.01
Date 1993-03-11
Origin Time 2236 55.21 +- 133.90
Zone 50
Easting 732.91 +- 922.91 Longitude 119.203
Northing 7980.05 +-3463.66 Latitude -18.256
Depth 5.00 +-4748.20 N
Arrival times = 5 S.D. = 0.708 Seismographs = 4
Nearest recorder = 328.3 km Gap = 310.2 deg Accuracy = D
Effects Code = Imax = 0 Fault =
267 km N ( 10 deg) of RP02
WESTERN AUSTRALIA
372 km NE ( 45 deg) of Dampier
236 km N ( 16 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 2.5
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBL e P 101.00 0.50 0.57 101.02 -0.02 328.3 168 -42.2 42.2
MBL e S 135.00 1.00 0.45 135.15 -0.15 328.3 168 -40.3 40.3
NANU e S 195.00 1.00 0.42 194.85 0.15 612.0 218 -40.3 40.3
MEEK e S 263.00 1.00 0.41 261.93 1.07 930.2 183 -40.3 40.3
MRWA e S 329.50 1.00 0.40 330.65 -1.15 1256.8 194 -40.3 40.3
5 times used, S = 0.708
Deferred Data
NANU w P 132.00 2.00 0.42 135.31 -3.31 612.0 218 -42.2 42.2
WARB e S 320.00 1.00 0.40 312.50 7.50 1170.5 140 -40.3 40.3
Velocity Ratios
MBL
MBL 1.74
0.04
Date 1993-03-12
Origin Time 0502 47.83 +- 29.37
Zone 51
Easting 183.06 +- 127.63 Longitude 119.796
Northing 6968.77 +- 327.09 Latitude -27.368
Depth 0.00 +- 441.08 G
Arrival times = 8 S.D. = 2.429 Seismographs = 5
Nearest recorder = 411.3 km Gap = 281.6 deg Accuracy = D
Effects Code = Imax = 0 Fault =
142 km SE (124 deg) of MEEK
WESTERN AUSTRALIA
635 km NE ( 38 deg) of PERTH
155 km SE (124 deg) of MEEKATHARRA
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
COOL e P 103.40 0.30 0.62 104.26 -0.86 411.3 161 -42.2 42.2
COOL w S 145.00 2.00 0.39 146.20 -1.20 411.3 161 -40.3 40.3
MRWA i-P 105.90 0.10 1.10 106.09 -0.19 426.6 240 -42.2 42.2
MRWA w S 150.00 2.00 0.39 149.38 0.62 426.6 240 -40.3 40.3
BAL e P 114.00 1.00 0.48 111.28 2.72 469.6 219 -42.2 42.2
KLB i-P 118.80 0.10 1.08 116.05 2.75 509.0 202 -42.2 42.2
KLB w S 165.50 2.00 0.38 166.72 -1.22 509.0 202 -40.3 40.3
MUN i+P 126.70 0.10 1.06 129.39 -2.69 619.4 213 -42.2 42.2
8 times used, S = 2.429
Deferred Data
BAL e S 164.00 1.00 0.44 158.42 5.58 469.6 219 -40.3 40.3
MUN e S 178.00 0.50 0.49 189.95 -11.95 619.4 213 -40.3 40.3
Velocity Ratios
COOL MRWA KLB
COOL 1.75 0.00 0.00
0.05 0.00 0.00
MRWA 0.00 1.76 0.00
0.00 0.04 0.00
KLB 0.00 0.00 1.66
0.00 0.00 0.03
Date 1993-03-12
Origin Time 1704 33.17 +- 2.06
Zone 50
Easting 360.78 +- 10.50 Longitude 115.556
Northing 6671.99 +- 4.38 Latitude -30.075
Depth 8.80 +- 12.73
Arrival times = 15 S.D. = 0.396 Seismographs = 9
Nearest recorder = 104.1 km Gap = 194.5 deg Accuracy = A
Effects Code = Imax = 0 Fault =
104 km SW (204 deg) of MRWA
WESTERN AUSTRALIA
210 km N (352 deg) of PERTH
171 km SE (148 deg) of GERALDTON
39 km SE (136 deg) of Eneabba
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.1
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MRWA i+P 50.30 0.10 1.26 50.22 0.08 104.1 24 -30.8 30.8
MRWA e S 62.00 1.00 0.50 62.04 -0.04 104.1 24 5.0 5.0
BAL i-P 53.30 0.10 1.24 53.19 0.11 125.4 118 -30.8 30.8
BAL e S 68.40 0.20 0.68 67.89 0.51 125.4 118 4.2 4.2
MUN i+P 65.40 0.10 1.18 65.46 -0.06 220.0 163 -42.2 42.2
MUN e S 90.20 0.30 0.59 89.62 0.58 220.0 163 -40.3 40.3
KLB e S 99.70 0.30 0.58 100.09 -0.39 269.6 129 -40.3 40.3
NWAO e P 81.70 1.00 0.50 81.67 0.03 353.9 153 -42.2 42.2
NWAO e S 117.20 0.50 0.51 117.83 -0.63 353.9 153 -40.3 40.3
NWAO e SG 130.30 0.30 0.57 130.97 -0.67 353.9 153 1.5 1.5
MEEK e P 97.80 0.20 0.66 97.49 0.31 484.6 38 -42.2 42.2
RKG e S 152.70 0.50 0.49 152.11 0.59 516.7 165 -40.3 40.3
NANU w P 139.00 2.00 0.40 139.72 -0.72 834.2 359 -42.2 42.2
WARB e P 180.20 0.20 0.61 180.89 -0.69 1174.3 70 -42.2 42.2
WARB e SG 357.00 1.00 0.40 357.57 -0.57 1174.3 70 0.5 0.5
15 times used, S = 0.396
Deferred Data
KLB e P 70.30 0.20 0.70 71.47 -1.17 269.6 129 -42.2 42.2
KLB e SG 106.00 0.50 0.53 107.69 -1.69 269.6 129 1.9 1.9
NWAO e S 126.10 0.40 0.26 125.85 0.25 353.9 153 -23.9 23.9
MEEK e S 144.00 0.50 0.50 145.38 -1.38 484.6 38 -40.3 40.3
MEEK e SG 164.30 0.50 0.50 167.05 -2.75 484.6 38 1.1 1.1
COOL e P 102.00 1.00 0.48 104.69 -2.69 544.1 100 -42.2 42.2
COOL e S 155.30 0.50 0.49 157.91 -2.61 544.1 100 -40.3 40.3
NANU w S 220.00 2.00 0.36 218.91 1.09 834.2 359 -40.3 40.3
MBL e P 167.00 0.50 0.51 169.05 -2.05 1076.6 24 -42.2 42.2
MBL e S 266.00 0.50 0.46 269.97 -3.97 1076.6 24 -40.3 40.3
WARB e S 290.50 0.50 0.46 290.58 -0.08 1174.3 70 -40.3 40.3
Velocity Ratios
MRWA BAL MUN NWAO
MRWA 1.68 0.00 1.87 1.76
0.07 0.00 0.11 0.11
BAL 0.00 1.75 1.80 1.72
0.00 0.02 0.07 0.09
MUN 1.87 1.80 1.77 1.66
0.11 0.07 0.01 0.17
NWAO 1.76 1.72 1.66 1.73
0.11 0.09 0.17 0.05
Date 1993-03-14
Origin Time 0939 43.78 +- 2.20
Zone 50
Easting 753.78 +- 11.12 Longitude 119.667
Northing 6530.17 +- 17.14 Latitude -31.335
Depth 0.00 +- 29.31 G
Arrival times = 12 S.D. = 1.329 Seismographs = 6
Nearest recorder = 149.7 km Gap = 161.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
133 km SE (129 deg) of BR3
WESTERN AUSTRALIA
368 km E ( 80 deg) of PERTH
184 km W (249 deg) of KALGOORLIE
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
COOL e P 67.50 0.50 0.62 67.97 -0.47 149.7 70 -30.8 30.8
COOL e S 86.00 0.50 0.56 85.15 0.85 149.7 70 0.2 0.2
KLB e P 71.00 0.50 0.61 72.63 -1.63 183.5 260 -42.2 42.2
KLB e S 92.00 0.50 0.55 94.14 -2.14 183.5 260 -40.3 40.3
NWAO e P 85.00 0.20 0.70 85.46 -0.46 289.6 231 -42.2 42.2
NWAO e PMP 88.40 0.30 0.39 87.91 0.49 289.6 231 -31.9 31.9
NWAO e S 117.20 0.30 0.58 116.47 0.73 289.6 231 -40.3 40.3
NWAO e SG 125.70 0.30 0.58 123.78 1.92 289.6 231 0.1 0.1
BAL e PG 92.00 1.00 0.51 91.75 0.25 294.1 285 0.1 0.1
BAL e SG 124.00 0.50 0.52 125.02 -1.02 294.1 285 0.1 0.1
MUN e S 126.00 1.00 0.45 126.16 -0.16 335.6 256 -40.3 40.3
MRWA e SG 163.00 0.30 0.56 160.90 2.10 424.0 302 0.0 0.0
12 times used, S = 1.329
Deferred Data
BAL e P 92.00 1.00 0.50 86.01 5.99 294.1 285 -42.2 42.2
BAL e S 124.00 0.50 0.52 117.42 6.58 294.1 285 -40.3 40.3
MUN w P 85.00 2.00 0.44 91.03 -6.03 335.6 256 -42.2 42.2
Velocity Ratios
COOL KLB NWAO
COOL 1.78 0.00 1.78
0.06 0.00 0.12
KLB 0.00 1.77 1.80
0.00 0.05 0.15
NWAO 1.78 1.80 1.78
0.12 0.15 0.02
Date 1993-03-15
Origin Time 0433 21.65 +- 0.81
Zone 50
Easting 504.97 +- 4.16 Longitude 117.052
Northing 6496.88 +- 4.71 Latitude -31.663
Depth 2.60 +- 32.27
Arrival times = 7 S.D. = 0.129 Seismographs = 4
Nearest recorder = 67.6 km Gap = 99.2 deg Accuracy = A
Effects Code = Imax = 0 Fault =
5 km N (354 deg) of ME3
WESTERN AUSTRALIA
118 km E ( 75 deg) of PERTH
5 km SE (132 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 1.6
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB i P 32.60 0.10 1.30 32.68 -0.08 67.6 83 2.5 2.5
KLB e S 40.50 0.50 0.59 40.33 0.17 67.6 83 2.5 2.5
MUN e P 35.70 0.20 0.78 35.88 -0.18 87.2 246 1.9 1.9
MUN e S 45.80 0.20 0.70 45.75 0.05 87.2 246 1.9 1.9
BAL e S 55.50 0.50 0.57 55.26 0.24 121.6 344 1.4 1.4
NWAO e P 44.40 0.30 0.69 44.39 0.01 141.1 173 -30.8 30.8
NWAO i S 60.70 0.10 1.10 60.63 0.07 141.1 173 1.2 1.2
7 times used, S = 0.129
Deferred Data
BAL e P 40.50 0.50 0.63 41.50 -1.00 121.6 344 1.4 1.4
Velocity Ratios
KLB MUN NWAO
KLB 1.72 0.00 1.71
0.06 0.00 0.11
MUN 0.00 1.72 1.71
0.00 0.04 0.14
NWAO 1.71 1.71 1.72
0.11 0.14 0.03
Date 1993-03-17
Origin Time 1341 22.77 +- 2.78
Zone 50
Easting 413.49 +- 41.14 Longitude 116.106
Northing 6721.33 +- 17.22 Latitude -29.635
Depth 5.00 +- 65.94 N
Arrival times = 6 S.D. = 0.249 Seismographs = 4
Nearest recorder = 47.4 km Gap = 169.1 deg Accuracy = C
Effects Code = Imax = 0 Fault =
47 km S (166 deg) of MRWA
WESTERN AUSTRALIA
258 km N ( 6 deg) of PERTH
173 km SE (124 deg) of GERALDTON
34 km W (292 deg) of Latham
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 1.7
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MRWA e P 30.30 0.20 0.82 30.55 -0.25 47.4 346 6.4 6.4
MRWA e S 36.30 0.50 0.61 35.95 0.35 47.4 346 6.4 6.4
BAL e P 42.50 0.30 0.70 42.68 -0.18 122.2 152 -30.8 30.8
BAL e S 56.70 0.30 0.63 56.57 0.13 122.2 152 2.5 2.5
MUN e P 60.50 0.50 0.59 60.31 0.19 259.9 177 -42.2 42.2
MEEK e SG 137.00 1.00 0.44 136.96 0.04 413.3 37 0.8 0.8
6 times used, S = 0.249
Deferred Data
MUN e S 91.00 1.00 0.46 88.32 2.68 259.9 177 -40.3 40.3
KLB e SG 95.00 1.00 0.46 96.98 -1.98 268.6 144 1.1 1.1
Velocity Ratios
MRWA BAL
MRWA 1.80 1.67
0.12 0.14
BAL 1.67 1.72
0.14 0.04
Date 1993-03-17
Origin Time 2358 34.24 +- 12.40
Zone 51
Easting 292.01 +- 39.17 Longitude 121.057
Northing 8234.38 +- 145.19 Latitude -15.961
Depth 5.00 +- 231.05 N
Arrival times = 8 S.D. = 1.451 Seismographs = 5
Nearest recorder = 590.0 km Gap = 251.8 deg Accuracy = D
Effects Code = Imax = 0 Fault =
572 km NE ( 25 deg) of RP02
WESTERN AUSTRALIA
255 km NW (330 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 2.7
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBL e P 111.50 0.50 0.54 111.70 -0.20 590.0 192 -42.2 42.2
MBL e S 171.00 0.50 0.49 169.28 1.72 590.0 192 -40.3 40.3
NANU e P 152.50 0.30 0.57 153.57 -1.07 936.5 217 -42.2 42.2
NANU e S 240.00 1.00 0.40 242.19 -2.19 936.5 217 -40.3 40.3
MEEK e P 188.50 0.20 0.61 186.71 1.79 1210.1 191 -42.2 42.2
MEEK e S 300.00 0.50 0.46 299.87 0.13 1210.1 191 -40.3 40.3
WARB e S 311.00 0.50 0.46 312.80 -1.80 1271.5 153 -40.3 40.3
WRA e P 219.50 0.50 0.51 219.43 0.07 1480.8 109 -42.2 42.2
8 times used, S = 1.451
Deferred Data
MTN e S 289.00 1.00 0.40 285.46 3.54 1142.0 73 -40.3 40.3
WARB e P 186.00 0.50 0.51 194.13 -8.13 1271.5 153 -42.2 42.2
WRA e S 365.30 1.00 0.40 356.84 8.46 1480.8 109 -40.3 40.3
Velocity Ratios
MBL NANU MEEK
MBL 1.77 1.68 1.68
0.02 0.07 0.03
NANU 1.68 1.74 1.67
0.07 0.01 0.07
MEEK 1.68 1.67 1.72
0.03 0.07 0.01
Date 1993-03-21
Origin Time 1853 5.61 +- 13.83
Zone 49
Easting 613.34 +- 395.04 Longitude 112.299
Northing 5743.53 +- 571.02 Latitude -38.449
Depth 5.00 +- 881.35 N
Arrival times = 11 S.D. = 0.755 Seismographs = 6
Nearest recorder = 603.4 km Gap = 333.0 deg Accuracy = D
Effects Code = Imax = 0 Fault =
602 km SW (223 deg) of RKG
790 km SW (203 deg) of PERTH
Place names undefined for this area
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.9
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
RKG e P 85.00 1.00 0.47 84.69 0.31 603.4 45 -42.2 42.2
RKG e S 142.70 0.50 0.49 143.48 -0.78 603.4 45 -40.3 40.3
MUN e P 109.20 0.20 0.63 108.68 0.52 801.8 27 -42.2 42.2
MUN e S 184.50 0.30 0.52 185.24 -0.74 801.8 27 -40.3 40.3
KLB e P 122.50 0.50 0.52 121.83 0.67 910.6 34 -42.2 42.2
KLB e S 208.00 1.00 0.41 208.14 -0.14 910.6 34 -40.3 40.3
BAL e P 127.00 1.00 0.45 127.84 -0.84 960.3 26 -42.2 42.2
MRWA e P 141.60 0.30 0.56 142.35 -0.75 1080.2 19 -42.2 42.2
MRWA e S 245.00 0.50 0.46 243.87 1.13 1080.2 19 -40.3 40.3
COOL e P 153.00 1.00 0.44 153.28 -0.28 1170.5 46 -42.2 42.2
COOL e S 264.00 1.00 0.40 262.90 1.10 1170.5 46 -40.3 40.3
11 times used, S = 0.755
Velocity Ratios
RKG MUN KLB MRWA COOL
RKG 1.73 1.73 1.74 1.81 1.78
0.03 0.12 0.11 0.06 0.08
MUN 1.73 1.73 0.00 1.87 1.82
0.12 0.01 0.00 0.05 0.08
KLB 1.74 0.00 1.73 1.94 1.84
0.11 0.00 0.02 0.17 0.16
MRWA 1.81 1.87 1.94 1.76 0.00
0.06 0.05 0.17 0.01 0.00
COOL 1.78 1.82 1.84 0.00 1.75
0.08 0.08 0.16 0.00 0.02
Date 1993-03-22
Origin Time 0208 38.43 +- 6.61
Zone 52
Easting 592.63 +- 17.26 Longitude 129.920
Northing 7197.51 +- 18.41 Latitude -25.336
Depth 5.00 +- 60.21 N
Arrival times = 8 S.D. = 0.499 Seismographs = 5
Nearest recorder = 341.9 km Gap = 130.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
341 km E ( 74 deg) of WARB
NORTHERN TERRITORY
112 km W (271 deg) of AYERS ROCK
99 km SE (122 deg) of DOCKER RIVER
Record Dur Sync Unc Resp Seismometer Recorder Pol
ASPA 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.2
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
WARB e P 86.30 0.30 0.63 85.91 0.39 341.9 253 -42.2 42.2
ASPA i-P 97.90 0.10 1.10 98.19 -0.29 443.3 66 -42.2 42.2
ASPA e S 144.00 0.50 0.50 142.65 1.35 443.3 66 -40.3 40.3
FORT e P 120.70 0.30 0.60 120.98 -0.28 632.2 196 -42.2 42.2
WRA i-P 135.30 0.10 1.04 135.37 -0.07 751.0 37 -42.2 42.2
WRA e S 207.20 0.50 0.48 207.39 -0.19 751.0 37 -40.3 40.3
MTN e P 212.00 1.00 0.44 212.40 -0.40 1388.3 5 -42.2 42.2
MTN e S 342.00 1.00 0.40 341.50 0.50 1388.3 5 -40.3 40.3
8 times used, S = 0.499
Deferred Data
WARB e SG 129.00 1.00 0.45 132.88 -3.88 341.9 253 0.9 0.9
FORT e S 185.00 1.00 0.42 182.34 2.66 632.2 196 -40.3 40.3
COOL e P 171.00 1.00 0.44 172.76 -1.76 1060.1 232 -42.2 42.2
COOL e S 270.70 0.50 0.46 272.49 -1.79 1060.1 232 -40.3 40.3
MEEK e P 181.00 0.50 0.51 183.03 -2.03 1145.0 260 -42.2 42.2
MEEK e S 288.00 1.00 0.40 290.37 -2.37 1145.0 260 -40.3 40.3
Velocity Ratios
ASPA WRA MTN
ASPA 1.78 1.69 1.74
0.01 0.04 0.03
WRA 1.69 1.74 1.76
0.04 0.01 0.05
MTN 1.74 1.76 1.75
0.03 0.05 0.02
Date 1993-03-26
Origin Time 0020 34.08 +- 8.45
Zone 50
Easting 182.61 +- 54.59 Longitude 113.925
Northing 7559.22 +- 36.39 Latitude -22.043
Depth 37.50 +- 153.17
Arrival times = 8 S.D. = 1.027 Seismographs = 5
Nearest recorder = 171.6 km Gap = 273.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
138 km NW (332 deg) of LP03
WESTERN AUSTRALIA
28 km NW (325 deg) of Learmonth
25 km SW (237 deg) of Exmouth
Record Dur Sync Unc Resp Seismometer Recorder Pol
MEEK -0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
NANU i-P 58.50 0.10 1.20 58.15 0.35 171.6 109 0.5 42.2
NANU e S 76.50 1.00 0.48 76.05 0.45 171.6 109 0.5 40.4
MBL e P 112.50 0.50 0.54 112.32 0.18 619.5 81 0.1 42.2
MBL e S 170.00 0.50 0.49 170.37 -0.37 619.5 81 0.1 40.3
MEEK e S 188.50 1.00 0.42 186.65 1.85 696.5 138 0.1 40.3
MRWA w P 139.00 2.00 0.41 136.79 2.21 821.7 165 0.1 42.2
MRWA e S 211.50 0.50 0.47 212.97 -1.47 821.7 165 0.1 40.3
MUN e P 172.50 1.00 0.44 173.34 -0.84 1124.0 168 0.1 42.2
8 times used, S = 1.027
Deferred Data
MEEK e P 125.50 0.50 0.53 121.68 3.82 696.5 138 0.1 42.2
MUN e S 279.00 0.50 0.46 276.60 2.40 1124.0 168 0.1 40.3
COOL e S 290.00 1.00 0.40 295.80 -5.80 1215.0 145 0.0 40.3
WARB e P 202.60 0.30 0.56 203.66 -1.06 1374.6 112 0.0 42.2
WARB e S 329.50 0.50 0.46 329.38 0.12 1374.6 112 0.0 40.3
Velocity Ratios
NANU MBL MRWA
NANU 1.74 1.73 1.68
0.05 0.05 0.06
MBL 1.73 1.73 0.00
0.05 0.02 0.00
MRWA 1.68 0.00 1.69
0.06 0.00 0.04
Date 1993-03-27
Origin Time 0808 10.11 +- 2.82
Zone 51
Easting 481.11 +- 9.67 Longitude 122.821
Northing 7947.75 +- 14.99 Latitude -18.561
Depth 5.00 +- 25.64 N
Arrival times = 14 S.D. = 0.900 Seismographs = 8
Nearest recorder = 425.1 km Gap = 177.1 deg Accuracy = C
Effects Code = Imax = 0 Fault =
425 km NE ( 47 deg) of MBL
WESTERN AUSTRALIA
90 km SE (136 deg) of BROOME
Record Dur Sync Unc Resp Seismometer Recorder Pol
ASPA 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.1
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBL S-P 42.60 0.30 0.89 42.80 -0.20 425.1 226 0.0 0.0
KNA e P 101.80 0.50 0.53 101.54 0.26 705.7 64 -42.2 42.2
KNA e S 169.00 1.00 0.42 169.48 -0.48 705.7 64 -40.3 40.3
NANU e P 123.50 0.20 0.62 123.02 0.48 883.3 238 -42.2 42.2
NANU e S 205.00 0.50 0.47 206.87 -1.87 883.3 238 -40.3 40.3
WARB e P 128.20 0.30 0.57 128.87 -0.67 931.3 155 -42.2 42.2
MEEK e P 137.00 0.20 0.62 136.42 0.58 993.8 204 -42.2 42.2
MEEK e S 230.30 0.30 0.51 230.20 0.10 993.8 204 -40.3 40.3
MTN e P 148.50 0.50 0.51 148.60 -0.10 1094.9 55 -42.2 42.2
MTN e S 252.00 1.00 0.40 251.41 0.59 1094.9 55 -40.3 40.3
WRA e P 163.50 0.30 0.56 164.61 -1.11 1227.0 99 -42.2 42.2
WRA e S 277.70 0.50 0.46 279.29 -1.59 1227.0 99 -40.3 40.3
ASPA e P 173.50 0.30 0.56 172.06 1.44 1288.4 118 -42.2 42.2
ASPA e S 293.30 0.50 0.46 292.25 1.05 1288.4 118 -40.3 40.3
14 times used, S = 0.900
Deferred Data
KNA e SG 209.90 0.50 0.48 205.05 4.85 705.7 64 0.4 0.4
WARB e S 211.00 0.50 0.47 217.05 -6.05 931.3 155 -40.3 40.3
Velocity Ratios
KNA NANU MEEK MTN WRA ASPA
KNA 1.73 1.66 1.74 1.78 1.76 1.73
0.02 0.13 0.07 0.08 0.05 0.04
NANU 1.66 1.72 1.87 1.88 1.82 1.77
0.13 0.01 0.12 0.12 0.05 0.04
MEEK 1.74 1.87 1.74 0.00 1.79 1.73
0.07 0.12 0.01 0.00 0.07 0.05
MTN 1.78 1.88 0.00 1.75 0.00 1.65
0.08 0.12 0.00 0.01 0.00 0.12
WRA 1.76 1.82 1.79 0.00 1.74 0.00
0.05 0.05 0.07 0.00 0.01 0.00
ASPA 1.73 1.77 1.73 1.65 0.00 1.73
0.04 0.04 0.05 0.12 0.00 0.01
Date 1993-03-30
Origin Time 0403 33.24 +- 0.62
Zone 50
Easting 516.10 +- 6.33 Longitude 117.168
Northing 6583.61 +- 4.22 Latitude -30.881
Depth 0.74 +- 11.37
Arrival times = 8 S.D. = 0.259 Seismographs = 4
Nearest recorder = 53.6 km Gap = 176.4 deg Accuracy = A
Effects Code = Imax = 0 Fault =
8 km SE (156 deg) of CAS
WESTERN AUSTRALIA
173 km NE ( 47 deg) of PERTH
7 km SE (117 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
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BAL i-P 41.90 0.10 1.33 41.99 -0.09 53.6 304 1.1 1.1
BAL e S 48.30 0.20 0.73 48.05 0.25 53.6 304 1.1 1.1
KLB e P 49.00 0.10 0.88 49.04 -0.04 96.9 144 0.6 0.6
KLB e S 60.00 0.20 0.69 60.00 -0.00 96.9 144 0.6 0.6
MUN e P 58.00 0.20 0.74 57.68 0.32 152.1 216 -30.8 30.8
MUN e S 75.00 0.20 0.67 75.25 -0.25 152.1 216 0.4 0.4
MRWA e P 66.30 0.20 0.72 65.96 0.34 216.1 328 -42.2 42.2
MRWA e S 89.80 0.30 0.60 90.34 -0.54 216.1 328 -40.3 40.3
8 times used, S = 0.259
Deferred Data
BAL S-P 6.00 0.20 1.16 6.07 -0.07 53.6 304 0.0 0.0
KLB S-P 11.00 0.30 1.01 10.96 0.04 96.9 144 0.0 0.0
MUN S-P 17.00 0.30 0.98 17.57 -0.57 152.1 216 0.0 0.0
MRWA S-P 24.50 0.10 1.18 24.38 0.12 216.1 328 0.0 0.0
COOL e P 84.00 0.50 0.57 85.84 -1.84 380.3 91 -42.2 42.2
COOL e S 123.40 0.50 0.51 124.94 -1.54 380.3 91 -40.3 40.3
Velocity Ratios
BAL KLB MUN MRWA
BAL 1.74 1.65 1.66 1.70
0.04 0.11 0.06 0.04
KLB 1.65 1.70 1.67 1.72
0.11 0.02 0.10 0.06
MUN 1.66 1.67 1.69 1.78
0.06 0.10 0.02 0.15
MRWA 1.70 1.72 1.78 1.71
0.04 0.06 0.15 0.02