Data Report
Bulletin / 1992 JAN-MAR
Contributed by CUPWA
Start
Date 1992-01-02
Origin Time 2333 19.23 +- 1.65
Zone 49
Easting 492.12 +- 50.84 Longitude 110.917
Northing 6484.80 +- 8.34 Latitude -31.772
Depth 6.70 +- 64.44
Arrival times = 11 S.D. = 0.258 Seismographs = 6
Nearest recorder = 501.5 km Gap = 300.7 deg Accuracy = C
Effects Code = Imax = 0 Fault =
497 km W (268 deg) of PIG4
467 km W (271 deg) of PERTH
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.0
PHASE INFORMATION
DATA USED
BAL e P 93.80 0.30 0.60 93.75 0.05 567.2 78 -42.2 42.2
BAL e S 149.80 0.20 0.59 149.17 0.63 567.2 78 -40.3 40.3
KLB i+P 103.70 0.10 1.06 103.75 -0.05 649.9 90 -42.2 42.2
KLB e S 165.90 0.20 0.58 166.58 -0.68 649.9 90 -40.3 40.3
MRWA i-P 93.20 0.10 1.07 93.37 -0.17 564.1 61 -42.2 42.2
MRWA e S 148.70 0.30 0.54 148.52 0.18 564.1 61 -40.3 40.3
MUN i-P 85.90 0.10 1.09 85.80 0.10 501.5 94 -42.2 42.2
MUN e S 132.00 1.00 0.43 135.33 -3.33 501.5 94 -40.3 40.3
NWAO e P 98.80 0.20 0.65 98.77 0.03 608.7 103 -42.2 42.2
NWAO e S 157.90 0.50 0.49 157.91 -0.01 608.7 103 -40.3 40.3
RKG i-P 103.60 0.10 1.06 103.51 0.09 647.9 120 -42.2 42.2
RKG e S 166.00 0.50 0.48 166.17 -0.17 647.9 120 -40.3 40.3
Velocity Ratios
MRWA BAL NWAO RKG KLB
MRWA 1.75 0.00 0.00 1.66 1.64
0.01 0.00 0.00 0.11 0.08
BAL 0.00 1.75 0.00 1.65 1.63
0.00 0.01 0.00 0.14 0.11
NWAO 0.00 0.00 1.74 0.00 0.00
0.00 0.00 0.01 0.00 0.00
RKG 1.66 1.65 0.00 1.74 0.00
0.11 0.14 0.00 0.01 0.00
KLB 1.64 1.63 0.00 0.00 1.74
0.08 0.11 0.00 0.00 0.00
Start
Date 1992-01-03
Origin Time 0713 49.57 +-1702.33
Zone 50
Easting 614.41 +-8388.14 Longitude 118.237
Northing 6253.35 +-1192.34 Latitude -33.854
Depth 5.00 +-10612.55 N
Arrival times = 5 S.D. = 0.277 Seismographs = 3
Nearest recorder = 138.1 km Gap = 244.6 deg Accuracy = B
Effects Code = Imax = 0 Fault =
4 km NE ( 58 deg) of GNOW
WESTERN AUSTRALIA
307 km SE (134 deg) of PERTH
132 km N ( 15 deg) of ALBANY
23 km E ( 69 deg) of Gnowangerup
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.2
PHASE INFORMATION
DATA USED
BAL e S 143.00 0.50 0.51 142.03 0.97 387.7 337 -40.3 40.3
KLB e P 87.00 0.50 0.59 86.49 0.51 254.7 349 -42.2 42.2
KLB e S 115.70 0.30 0.59 114.03 1.67 254.7 349 -40.3 40.3
MRWA w S 180.00 2.00 0.38 177.47 2.53 556.1 337 -40.3 40.3
MUN e P 89.00 0.50 0.58 89.71 -0.71 281.4 317 -42.2 42.2
MUN e SG 125.00 1.00 0.46 127.32 -2.32 281.4 317 1.1 1.1
NWAO i P 71.60 0.20 1.07 71.79 -0.19 138.8 317 -30.8 30.8
NWAO i S 88.00 0.30 0.89 87.95 0.05 138.8 317 2.2 2.2
RKG e P 71.50 0.40 0.65 71.69 -0.19 138.1 234 -30.8 30.8
RKG e S 88.00 0.50 0.56 87.74 0.26 138.1 234 2.2 2.2
Velocity Ratios
RKG NWAO
RKG 1.75 0.00
0.06 0.00
NWAO 0.00 1.74
0.00 0.03
Start
Date 1992-01-04
Origin Time 0240 41.68 +- 142.63
Zone 50
Easting 720.72 +- 442.70 Longitude 119.156
Northing 7439.61 +- 234.17 Latitude -23.138
Depth 5.00 +-1042.60 N
Arrival times = 6 S.D. = 6.313 Seismographs = 3
Nearest recorder = 230.0 km Gap = 173.4 deg Accuracy = D
Effects Code = Imax = 0 Fault =
93 km NW (321 deg) of MY38
WESTERN AUSTRALIA
373 km SE (138 deg) of Dampier
320 km S (169 deg) of PORT HEDLAND
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
MBL e P 74.00 0.30 0.66 75.60 -1.60 230.0 17 -42.2 42.2
MBL e S 101.00 0.50 0.53 100.91 0.09 230.0 17 -40.3 40.3
MRWA e P 136.00 0.30 0.59 137.73 -1.73 743.7 204 -42.2 42.2
MRWA e S 209.00 0.30 0.53 209.09 -0.09 743.7 204 -40.3 40.3
WARB e P 160.00 0.50 0.52 148.56 11.44 833.2 115 -42.2 42.2
WARB e S 217.00 1.00 0.41 227.95 -10.95 833.2 115 -40.3 40.3
Velocity Ratios
MBL MRWA WARB
MBL 1.84 1.74 1.35
0.03 0.03 0.03
MRWA 1.74 1.77 0.33
0.03 0.01 0.07
WARB 1.35 0.33 1.48
0.03 0.07 0.01
Start
Date 1992-01-04
Origin Time 0714 51.61 +- 0.53
Zone 50
Easting 526.33 +- 4.37 Longitude 117.279
Northing 6459.89 +- 3.52 Latitude -31.997
Depth 1.00 +- 12.79 G
Arrival times = 10 S.D. = 0.288 Seismographs = 6
Nearest recorder = 64.0 km Gap = 136.9 deg Accuracy = A
Effects Code = Imax = 0 Fault =
11 km W (278 deg) of QUAI
WESTERN AUSTRALIA
135 km E ( 93 deg) of PERTH
36 km NE ( 68 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.3
PHASE INFORMATION
DATA USED
BAL e P 77.50 0.20 0.74 77.61 -0.11 163.4 340 -30.8 30.8
BAL e S 96.50 0.30 0.61 96.75 -0.25 163.4 340 0.5 0.5
FORR e P 183.00 0.20 0.61 183.79 -0.79 1038.7 85 -42.2 42.2
FORR e S 283.00 0.50 0.46 281.87 1.13 1038.7 85 -40.3 40.3
KLB i-P 62.20 0.10 1.31 62.05 0.15 64.0 45 1.2 1.2
MRWA e P 98.20 0.20 0.69 98.26 -0.06 331.6 338 -42.2 42.2
MRWA e PG 105.00 0.20 0.69 105.70 -0.70 331.6 338 0.2 0.2
MRWA e S 133.00 1.00 0.45 132.97 0.03 331.6 338 -40.3 40.3
MRWA e S2 139.50 0.50 0.29 139.52 -0.02 331.6 338 -23.9 23.9
MUN i-P 67.80 0.10 1.26 68.11 -0.31 101.1 270 0.7 0.7
MUN i S 79.90 0.10 1.13 79.55 0.35 101.1 270 0.7 0.7
NANU e P 184.70 0.50 0.51 186.52 -1.82 1061.6 350 -42.2 42.2
NANU e S 284.50 0.50 0.46 286.63 -2.13 1061.6 350 -40.3 40.3
NWAO i P 68.20 0.10 1.26 68.45 -0.25 103.2 182 0.7 0.7
NWAO i S 80.20 0.10 1.13 80.12 0.08 103.2 182 0.7 0.7
RKG e P 93.40 0.30 0.64 92.80 0.60 286.4 184 -42.2 42.2
RKG PG 96.50 0.50 0.83 98.33 -1.83 286.4 184 0.3 0.3
RKG S 124.50 1.00 0.65 123.45 1.05 286.4 184 -40.3 40.3
RKG e S2 127.80 0.50 0.29 128.11 -0.31 286.4 184 -23.9 23.9
WARB e P 192.00 6.00 0.31 193.55 -1.55 1119.5 56 -42.2 42.2
WARB e S 300.00 1.00 0.40 298.87 1.13 1119.5 56 -40.3 40.3
Velocity Ratios
MUN NWAO BAL MRWA
MUN 1.75 0.00 1.71 1.75
0.02 0.00 0.10 0.05
NWAO 0.00 1.72 1.75 1.76
0.00 0.02 0.10 0.05
BAL 1.71 1.75 1.73 1.76
0.10 0.10 0.03 0.10
MRWA 1.75 1.76 1.76 1.75
0.05 0.05 0.10 0.03
Start
Date 1992-01-05
Origin Time 0649 29.42 +- 16.70
Zone 50
Easting 521.81 +- 92.03 Longitude 117.231
Northing 6457.22 +- 65.18 Latitude -32.021
Depth 3.24 +- 332.04
Arrival times = 5 S.D. = 0.334 Seismographs = 3
Nearest recorder = 96.7 km Gap = 197.6 deg Accuracy = B
Effects Code = Imax = 0 Fault =
15 km W (266 deg) of QUAI
WESTERN AUSTRALIA
131 km E ( 94 deg) of PERTH
30 km E ( 69 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
PHASE INFORMATION
DATA USED
BAL i P 55.40 0.10 1.21 55.38 0.02 164.5 342 -30.8 30.8
BAL e S 75.10 0.10 0.76 74.86 0.24 164.5 342 1.2 1.2
MUN S-P 11.60 0.10 1.26 10.95 0.65 96.7 272 0.0 0.0
MUN i-P 44.80 0.10 1.26 45.20 -0.40 96.7 272 2.1 2.1
MUN i S 56.40 0.10 1.14 56.15 0.25 96.7 272 2.1 2.1
NWAO e S 57.60 0.50 0.58 57.17 0.43 100.4 179 2.0 2.0
Velocity Ratios
MUN BAL
MUN 1.75 1.76
0.02 0.05
BAL 1.76 1.76
0.05 0.01
Start
Date 1992-01-05
Origin Time 0753 41.83 +- 11.07
Zone 50
Easting 524.40 +- 57.83 Longitude 117.258
Northing 6458.50 +- 64.62 Latitude -32.009
Depth 3.46 +- 204.75
Arrival times = 6 S.D. = 0.308 Seismographs = 3
Nearest recorder = 99.3 km Gap = 200.0 deg Accuracy = A
Effects Code = Imax = 0 Fault =
12 km W (271 deg) of QUAI
WESTERN AUSTRALIA
133 km E ( 93 deg) of PERTH
33 km E ( 68 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
PHASE INFORMATION
DATA USED
BAL i P 67.40 0.10 1.21 67.73 -0.33 164.1 341 -30.8 30.8
BAL i S 87.50 0.10 1.09 87.17 0.33 164.1 341 -23.9 23.9
MUN S-P 11.60 0.10 1.26 11.23 0.37 99.3 271 0.0 0.0
MUN i+P 57.80 0.10 1.26 58.04 -0.24 99.3 271 2.1 2.1
MUN i S 69.40 0.10 1.13 69.27 0.13 99.3 271 2.1 2.1
NWAO e P 58.80 0.30 0.71 58.44 0.36 101.7 181 2.1 2.1
NWAO e S 70.10 0.50 0.57 69.95 0.15 101.7 181 2.1 2.1
Velocity Ratios
MUN NWAO BAL
MUN 1.73 0.00 1.89
0.02 0.00 0.06
NWAO 0.00 1.67 2.02
0.00 0.06 0.17
BAL 1.89 2.02 1.79
0.06 0.17 0.01
Start
Date 1992-01-06
Origin Time 0658 54.10 +- 1.11
Zone 50
Easting 524.31 +- 9.06 Longitude 117.257
Northing 6459.47 +- 7.88 Latitude -32.000
Depth 5.00 +- 32.26 N
Arrival times = 7 S.D. = 0.264 Seismographs = 4
Nearest recorder = 65.7 km Gap = 134.9 deg Accuracy = A
Effects Code = Imax = 0 Fault =
13 km W (275 deg) of QUAI
WESTERN AUSTRALIA
133 km E ( 93 deg) of PERTH
34 km NE ( 67 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.3
PHASE INFORMATION
DATA USED
BAL e P 80.20 0.10 0.85 79.73 0.47 163.1 341 -30.8 30.8
BAL e S 99.00 0.30 0.61 99.02 -0.02 163.1 341 -23.9 23.9
KLB e P 64.60 0.20 0.80 64.86 -0.26 65.7 46 4.6 4.6
MRWA e S 135.20 0.50 0.52 134.67 0.53 331.2 338 -40.3 40.3
MRWA e S2 141.50 0.50 0.29 141.47 0.03 331.2 338 -23.9 23.9
MUN i P 70.10 0.10 1.26 70.30 -0.20 99.1 271 3.0 3.0
MUN i S 81.60 0.30 0.91 81.53 0.07 99.1 271 3.0 3.0
NWAO w P 70.90 0.50 0.65 70.88 0.02 102.7 181 2.9 2.9
NWAO e S 82.70 0.30 0.64 82.51 0.19 102.7 181 2.9 2.9
RKG e P 96.00 1.00 0.51 94.78 1.22 285.8 184 -42.2 42.2
RKG e S 127.00 2.00 0.40 125.10 1.90 285.8 184 -40.3 40.3
Velocity Ratios
MUN NWAO BAL
MUN 1.72 0.00 1.72
0.03 0.00 0.10
NWAO 0.00 1.70 1.75
0.00 0.07 0.19
BAL 1.72 1.75 1.72
0.10 0.19 0.02
Start
Date 1992-01-07
Origin Time 0631 56.84 +- 2.26
Zone 51
Easting 535.92 +- 14.60 Longitude 123.374
Northing 6626.16 +- 39.77 Latitude -30.496
Depth 36.50 +- 316.45
Arrival times = 10 S.D. = 1.349 Seismographs = 6
Nearest recorder = 451.4 km Gap = 159.1 deg Accuracy = C
Effects Code = Imax = 0 Fault =
150 km E ( 67 deg) of KLDM
WESTERN AUSTRALIA
735 km E ( 79 deg) of PERTH
185 km E ( 82 deg) of KALGOORLIE
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.1
PHASE INFORMATION
DATA USED
BAL e S 196.50 0.50 0.48 197.55 -1.05 640.4 267 0.0 40.3
FORR e P 114.30 0.10 0.77 114.79 -0.49 451.4 95 0.0 42.2
FORR e S 158.00 1.00 0.44 157.79 0.21 451.4 95 0.0 40.3
FORR w SG 175.00 2.00 0.39 157.79 17.21 451.4 95 0.0 40.3
KLB e P 129.00 0.30 0.60 126.66 2.34 549.8 255 0.0 42.2
KLB w S 176.40 0.50 0.50 178.47 -2.07 549.8 255 0.0 40.3
MRWA e P 149.60 0.50 0.53 148.19 1.41 727.7 279 0.0 42.2
MRWA e S 215.00 1.00 0.42 215.94 -0.94 727.7 279 0.0 40.3
MUN e S 211.00 0.50 0.48 210.70 0.30 702.9 254 0.0 40.3
WARB e P 129.00 0.30 0.60 129.79 -0.79 575.5 34 0.0 42.2
WARB e S 184.50 1.00 0.43 183.91 0.59 575.5 34 0.0 40.3
Velocity Ratios
FORR KLB WARB MRWA
FORR 1.76 1.25 1.80 1.61
0.02 0.14 0.19 0.09
KLB 1.25 1.66 0.00 1.87
0.14 0.01 0.00 0.15
WARB 1.80 0.00 1.77 1.48
0.19 0.00 0.02 0.16
MRWA 1.61 1.87 1.48 1.71
0.09 0.15 0.16 0.02
Start
Date 1992-01-09
Origin Time 0837 29.91 +- 13.05
Zone 50
Easting 623.52 +- 43.42 Longitude 118.332
Northing 6273.94 +- 43.78 Latitude -33.667
Depth 1.00 +- 41.79 G
Arrival times = 7 S.D. = 0.875 Seismographs = 3
Nearest recorder = 131.2 km Gap = 321.8 deg Accuracy = C
Effects Code = Imax = 0 Fault =
25 km NE ( 34 deg) of GNOC
WESTERN AUSTRALIA
301 km SE (130 deg) of PERTH
154 km N ( 16 deg) of ALBANY
42 km NE ( 47 deg) of Gnowangerup
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.2
PHASE INFORMATION
DATA USED
KLB e PG 68.00 1.00 0.52 68.46 -0.46 236.3 346 0.3 0.3
KLB e P 68.00 1.00 0.52 65.04 2.96 236.3 346 -42.2 42.2
KLB e S 92.30 0.30 0.59 91.21 1.09 236.3 346 -40.3 40.3
KLB e SG 94.70 0.30 0.59 95.18 -0.48 236.3 346 0.3 0.3
MUN e PG 73.50 0.50 0.58 74.46 -0.96 273.1 312 0.3 0.3
MUN e P 73.50 0.50 0.58 69.48 4.02 273.1 312 -42.2 42.2
MUN e SG 104.50 0.50 0.53 105.35 -0.85 273.1 312 0.3 0.3
MUN e S 104.50 0.50 0.53 98.95 5.55 273.1 312 -40.3 40.3
NWAO e P 52.00 1.00 0.54 51.31 0.69 131.2 308 0.6 0.6
NWAO e S 67.00 0.50 0.56 66.15 0.85 131.2 308 0.6 0.6
NWAO SG 74.00 1.00 0.70 66.15 7.85 131.2 308 0.6 0.6
Velocity Ratios
NWAO
NWAO 1.68
0.10
Start
Date 1992-01-10
Origin Time 0027 2.11 +- 6.22
Zone 50
Easting 525.56 +- 21.22 Longitude 117.271
Northing 6459.14 +- 59.47 Latitude -32.003
Depth 5.00 +- 77.22 N
Arrival times = 6 S.D. = 0.198 Seismographs = 3
Nearest recorder = 65.0 km Gap = 225.9 deg Accuracy = A
Effects Code = Imax = 0 Fault =
11 km W (274 deg) of QUAI
WESTERN AUSTRALIA
134 km E ( 93 deg) of PERTH
35 km E ( 68 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
PHASE INFORMATION
DATA USED
BAL e P 28.00 0.50 0.61 27.84 0.16 163.8 340 -30.8 30.8
BAL e S 47.00 0.30 0.61 47.21 -0.21 163.8 340 -23.9 23.9
KLB e P 12.70 0.20 0.80 12.75 -0.05 65.0 45 4.7 4.7
KLB e S 20.30 0.30 0.66 20.13 0.17 65.0 45 4.7 4.7
MUN e P 18.20 0.20 0.77 18.51 -0.31 100.4 271 3.0 3.0
MUN i S 30.00 0.10 1.13 29.88 0.12 100.4 271 3.0 3.0
Velocity Ratios
KLB MUN BAL
KLB 1.72 0.00 1.75
0.06 0.00 0.12
MUN 0.00 1.73 1.73
0.00 0.03 0.18
BAL 1.75 1.73 1.73
0.12 0.18 0.05
Start
Date 1992-01-11
Origin Time 1437 30.67 +- 5.11
Zone 50
Easting 525.43 +- 21.63 Longitude 117.269
Northing 6458.91 +- 51.97 Latitude -32.006
Depth 5.00 +- 69.24 N
Arrival times = 6 S.D. = 0.184 Seismographs = 3
Nearest recorder = 65.3 km Gap = 226.1 deg Accuracy = A
Effects Code = Imax = 0 Fault =
11 km W (273 deg) of QUAI
WESTERN AUSTRALIA
134 km E ( 93 deg) of PERTH
34 km E ( 68 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.9
PHASE INFORMATION
DATA USED
BAL e P 56.50 0.30 0.68 56.43 0.07 164.0 340 -30.8 30.8
BAL e S 75.70 0.30 0.61 75.82 -0.12 164.0 340 -23.9 23.9
KLB e P 41.40 0.20 0.80 41.36 0.04 65.3 45 4.6 4.6
KLB e S 48.80 0.30 0.66 48.77 0.03 65.3 45 4.6 4.6
MUN e P 46.80 0.20 0.77 47.05 -0.25 100.3 271 3.0 3.0
MUN e S 58.70 0.30 0.64 58.41 0.29 100.3 271 3.0 3.0
Velocity Ratios
KLB MUN BAL
KLB 1.69 0.00 1.78
0.06 0.00 0.10
MUN 0.00 1.74 1.75
0.00 0.04 0.16
BAL 1.78 1.75 1.74
0.10 0.16 0.03
Start
Date 1992-01-11
Origin Time 1618 22.42 +- 76.00
Zone 51
Easting 631.27 +- 116.84 Longitude 124.345
Northing 6816.80 +- 135.51 Latitude -28.770
Depth 5.00 +- 514.38 N
Arrival times = 5 S.D. = 0.319 Seismographs = 3
Nearest recorder = 365.8 km Gap = 166.9 deg Accuracy = D
Effects Code = Imax = 0 Fault =
336 km NE ( 53 deg) of KLKB
WESTERN AUSTRALIA
889 km E ( 69 deg) of PERTH
165 km SE (122 deg) of Cosmo Newberry
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 2.0
PHASE INFORMATION
DATA USED
COOL e S 115.00 0.50 0.51 114.95 0.05 387.9 231 -40.3 40.3
FORR e P 79.50 0.50 0.56 79.94 -0.44 424.8 123 -42.2 42.2
FORR e S 123.00 0.30 0.56 122.74 0.26 424.8 123 -40.3 40.3
MRWA e S 202.00 5.00 0.30 205.02 -3.02 815.9 264 -40.3 40.3
WARB e P 73.00 0.50 0.57 72.79 0.21 365.8 38 -42.2 42.2
WARB e S 110.00 1.00 0.45 110.29 -0.29 365.8 38 -40.3 40.3
Velocity Ratios
WARB FORR
WARB 1.73 0.00
0.04 0.00
FORR 0.00 1.76
0.00 0.02
Start
Date 1992-01-12
Origin Time 0141 13.54 +- 225.12
Zone 49
Easting 629.99 +-2063.40 Longitude 112.307
Northing 7043.30 +- 356.62 Latitude -26.725
Depth 5.00 +-2163.79 N
Arrival times = 5 S.D. = 0.822 Seismographs = 4
Nearest recorder = 456.5 km Gap = 264.6 deg Accuracy = D
Effects Code = Imax = 0 Fault =
205 km W (253 deg) of LP01
WESTERN AUSTRALIA
673 km NW (328 deg) of PERTH
246 km SW (213 deg) of CARNARVON
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.6
PHASE INFORMATION
DATA USED
BAL e S 154.00 1.00 0.42 152.57 1.43 608.9 136 -40.3 40.3
KLB e S 181.00 1.00 0.41 183.88 -2.88 757.6 136 -40.3 40.3
MBL e S 232.00 1.00 0.40 232.05 -0.05 986.5 52 -40.3 40.3
MRWA e P 75.00 2.00 0.42 74.86 0.14 456.5 128 -42.2 42.2
MRWA e S 120.00 0.30 0.55 120.48 -0.48 456.5 128 -40.3 40.3
MUN e S 170.00 1.00 0.42 170.72 -0.72 695.1 148 -40.3 40.3
Velocity Ratios
MRWA
MRWA 1.73
0.06
Start
Date 1992-01-12
Origin Time 0628 33.30 +- 1.65
Zone 50
Easting 525.85 +- 9.46 Longitude 117.274
Northing 6459.73 +- 7.31 Latitude -31.998
Depth 5.00 +- 47.29 N
Arrival times = 7 S.D. = 0.266 Seismographs = 4
Nearest recorder = 64.4 km Gap = 136.5 deg Accuracy = A
Effects Code = Imax = 0 Fault =
11 km W (277 deg) of QUAI
WESTERN AUSTRALIA
135 km E ( 93 deg) of PERTH
35 km NE ( 67 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.5
PHASE INFORMATION
DATA USED
BAL e S 78.40 0.50 0.55 78.29 0.11 163.4 340 -23.9 23.9
KLB e P 44.30 0.50 0.66 43.85 0.45 64.4 45 4.7 4.7
KLB e S 50.80 0.30 0.66 51.16 -0.36 64.4 45 4.7 4.7
MUN e P 49.70 0.20 0.77 49.75 -0.05 100.7 270 3.0 3.0
MUN e S 61.10 0.30 0.64 61.15 -0.05 100.7 270 3.0 3.0
NWAO e P 49.90 1.00 0.56 50.13 -0.23 103.0 182 2.9 2.9
NWAO e S 61.90 0.30 0.64 61.79 0.11 103.0 182 2.9 2.9
Velocity Ratios
KLB MUN NWAO
KLB 1.59 0.00 0.00
0.10 0.00 0.00
MUN 0.00 1.70 0.00
0.00 0.04 0.00
NWAO 0.00 0.00 1.72
0.00 0.00 0.13
Start
Date 1992-01-12
Origin Time 1222 26.69 +- 1.14
Zone 50
Easting 525.88 +- 6.80 Longitude 117.274
Northing 6460.92 +- 5.34 Latitude -31.987
Depth 4.30 +- 37.65
Arrival times = 7 S.D. = 0.132 Seismographs = 4
Nearest recorder = 63.6 km Gap = 135.7 deg Accuracy = A
Effects Code = Imax = 0 Fault =
11 km W (283 deg) of QUAI
WESTERN AUSTRALIA
135 km E ( 92 deg) of PERTH
36 km NE ( 66 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.7
PHASE INFORMATION
DATA USED
BAL e S 71.50 0.50 0.55 71.47 0.03 162.3 340 -23.9 23.9
KLB e P 37.00 0.50 0.66 37.09 -0.09 63.6 46 4.1 4.1
KLB e S 44.40 0.30 0.66 44.30 0.10 63.6 46 4.1 4.1
MUN e P 43.10 0.10 0.88 43.13 -0.03 100.7 270 2.6 2.6
MUN e S 54.60 0.30 0.64 54.53 0.07 100.7 270 2.6 2.6
NWAO e P 43.50 0.30 0.71 43.70 -0.20 104.2 182 2.5 2.5
NWAO e S 55.70 0.30 0.64 55.50 0.20 104.2 182 2.5 2.5
Velocity Ratios
KLB MUN NWAO
KLB 1.72 0.00 0.00
0.12 0.00 0.00
MUN 0.00 1.70 0.00
0.00 0.03 0.00
NWAO 0.00 0.00 1.73
0.00 0.00 0.05
Start
Date 1992-01-13
Origin Time 0533 44.71 +- 10.21
Zone 50
Easting 524.34 +- 55.32 Longitude 117.258
Northing 6459.07 +- 55.80 Latitude -32.004
Depth 5.00 +- 183.89 N
Arrival times = 6 S.D. = 0.354 Seismographs = 3
Nearest recorder = 99.2 km Gap = 200.0 deg Accuracy = A
Effects Code = Imax = 0 Fault =
12 km W (273 deg) of QUAI
WESTERN AUSTRALIA
133 km E ( 93 deg) of PERTH
34 km NE ( 68 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.7
PHASE INFORMATION
DATA USED
BAL e P 71.00 0.50 0.61 70.40 0.60 163.5 341 -30.8 30.8
BAL e S 89.40 0.30 0.61 89.73 -0.33 163.5 341 -23.9 23.9
MUN e P 60.70 0.20 0.77 60.91 -0.21 99.2 271 3.0 3.0
MUN e S 72.30 0.20 0.69 72.15 0.15 99.2 271 3.0 3.0
NWAO e P 61.10 0.50 0.64 61.42 -0.32 102.3 181 2.9 2.9
NWAO e S 73.20 0.30 0.64 73.00 0.20 102.3 181 2.9 2.9
Velocity Ratios
MUN NWAO BAL
MUN 1.73 0.00 1.66
0.03 0.00 0.17
NWAO 0.00 1.74 0.00
0.00 0.07 0.00
BAL 1.66 0.00 1.70
0.17 0.00 0.04
Start
Date 1992-01-14
Origin Time 1720 53.30 +- 0.77
Zone 50
Easting 524.77 +- 4.73 Longitude 117.262
Northing 6461.15 +- 3.75 Latitude -31.985
Depth 1.00 +- 25.80 G
Arrival times = 8 S.D. = 0.246 Seismographs = 4
Nearest recorder = 64.2 km Gap = 134.3 deg Accuracy = A
Effects Code = Imax = 0 Fault =
12 km W (283 deg) of QUAI
WESTERN AUSTRALIA
134 km E ( 92 deg) of PERTH
35 km NE ( 65 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
PHASE INFORMATION
DATA USED
BAL e P 79.50 0.20 0.74 79.06 0.44 161.7 340 -30.8 30.8
BAL e S 97.90 0.20 0.66 97.96 -0.06 161.7 340 0.5 0.5
KLB e P 63.70 0.10 0.92 63.78 -0.08 64.2 47 1.2 1.2
KLB e S 71.00 0.30 0.66 71.04 -0.04 64.2 47 1.2 1.2
MUN e P 69.20 0.20 0.77 69.54 -0.34 99.6 270 0.7 0.7
MUN e S 80.90 0.20 0.69 80.80 0.10 99.6 270 0.7 0.7
NWAO e P 70.20 0.30 0.71 70.33 -0.13 104.4 181 0.7 0.7
NWAO e S 82.40 0.50 0.57 82.13 0.27 104.4 181 0.7 0.7
Velocity Ratios
KLB MUN NWAO BAL
KLB 1.70 0.00 0.00 1.70
0.05 0.00 0.00 0.07
MUN 0.00 1.74 0.00 1.65
0.00 0.03 0.00 0.11
NWAO 0.00 0.00 1.72 1.67
0.00 0.00 0.06 0.17
BAL 1.70 1.65 1.67 1.70
0.07 0.11 0.17 0.02
Start
Date 1992-01-14
Origin Time 2127 29.12 +- 3.30
Zone 50
Easting 525.95 +- 20.98 Longitude 117.275
Northing 6459.83 +- 17.56 Latitude -31.997
Depth 5.00 +- 53.83 N
Arrival times = 8 S.D. = 0.303 Seismographs = 4
Nearest recorder = 100.8 km Gap = 109.8 deg Accuracy = A
Effects Code = Imax = 0 Fault =
11 km W (278 deg) of QUAI
WESTERN AUSTRALIA
135 km E ( 93 deg) of PERTH
35 km NE ( 67 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.9
PHASE INFORMATION
DATA USED
BAL e P 55.40 0.20 0.74 54.78 0.62 163.3 340 -30.8 30.8
BAL e S 74.00 0.30 0.61 74.09 -0.09 163.3 340 -23.9 23.9
COOL e P 82.20 0.20 0.68 82.20 0.00 388.2 72 -42.2 42.2
COOL e S 121.20 0.30 0.56 121.71 -0.51 388.2 72 -40.3 40.3
FORR e P 161.00 0.50 0.51 160.90 0.10 1039.0 85 -42.2 42.2
FORR e S 258.00 2.00 0.35 258.74 -0.74 1039.0 85 -40.3 40.3
MRWA e P 76.40 0.20 0.69 75.32 1.08 331.5 338 -42.2 42.2
MRWA e S 110.50 0.50 0.52 109.74 0.76 331.5 338 -40.3 40.3
MUN i-P 45.40 0.10 1.26 45.58 -0.18 100.8 270 3.0 3.0
MUN e S 57.00 0.40 0.60 56.99 0.01 100.8 270 3.0 3.0
NWAO e P 46.10 0.10 0.88 45.96 0.14 103.1 182 2.9 2.9
NWAO e S 57.70 0.20 0.69 57.64 0.06 103.1 182 2.9 2.9
RKG i P 71.20 0.10 1.15 69.86 1.34 286.3 184 -42.2 42.2
RKG e S 102.80 0.10 0.72 100.23 2.57 286.3 184 -40.3 40.3
WARB e P 170.50 0.30 0.56 170.67 -0.17 1119.8 56 -42.2 42.2
WARB e S 277.00 1.00 0.40 275.74 1.26 1119.8 56 -40.3 40.3
WARB e SG 335.00 2.00 0.35 338.47 -3.47 1119.8 56 0.3 0.3
Velocity Ratios
MUN NWAO BAL COOL
MUN 1.71 0.00 1.70 1.74
0.04 0.00 0.12 0.03
NWAO 0.00 1.68 1.75 1.76
0.00 0.02 0.11 0.03
BAL 1.70 1.75 1.71 1.76
0.12 0.11 0.02 0.05
COOL 1.74 1.76 1.76 1.73
0.03 0.03 0.05 0.01
Start
Date 1992-01-15
Origin Time 2059 53.36 +- 6.53
Zone 50
Easting 719.11 +- 17.31 Longitude 119.365
Northing 6264.11 +- 32.27 Latitude -33.740
Depth 5.00 +- 44.39 N
Arrival times = 8 S.D. = 0.365 Seismographs = 5
Nearest recorder = 218.0 km Gap = 218.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
73 km E (109 deg) of PIN
WESTERN AUSTRALIA
384 km SE (122 deg) of PERTH
196 km NE ( 45 deg) of ALBANY
KLB -0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.4
PHASE INFORMATION
DATA USED
BAL w P 114.00 3.00 0.40 111.28 2.72 428.4 323 -42.2 42.2
BAL e S2 161.00 0.50 0.28 165.26 -4.26 428.4 323 -23.9 23.9
COOL w P 102.50 2.00 0.44 102.87 -0.37 358.7 28 -42.2 42.2
COOL e S 140.00 0.50 0.51 139.75 0.25 358.7 28 -40.3 40.3
FORR e P 171.00 0.50 0.52 166.73 4.27 886.7 70 -42.2 42.2
FORR e S 255.00 1.00 0.41 250.91 4.09 886.7 70 -40.3 40.3
KLB e P 97.40 0.30 0.65 93.56 3.84 281.8 327 -42.2 42.2
KLB e S2 128.00 0.30 0.32 128.26 -0.26 281.8 327 -23.9 23.9
MUN e P2 106.00 2.00 0.26 105.74 0.26 354.1 302 -30.8 30.8
MUN e P 106.00 2.00 0.43 102.30 3.70 354.1 302 -42.2 42.2
MUN e S2 147.20 0.20 0.34 146.51 0.69 354.1 302 -23.9 23.9
NWAO e PG 88.80 0.50 0.60 88.93 -0.13 218.0 293 1.4 1.4
NWAO e S2 111.80 0.10 0.41 112.13 -0.33 218.0 293 -23.9 23.9
RKG e P 90.80 0.30 0.66 87.99 2.81 235.8 246 -42.2 42.2
RKG e S2 117.00 0.50 0.30 116.63 0.37 235.8 246 -23.9 23.9
Velocity Ratios
COOL
COOL 1.76
0.09
Start
Date 1992-01-15
Origin Time 2059 56.32 +- 8.62
Zone 50
Easting 720.97 +- 17.59 Longitude 119.385
Northing 6265.79 +- 28.15 Latitude -33.725
Depth 5.00 +- 69.45 N
Arrival times = 12 S.D. = 1.443 Seismographs = 7
Nearest recorder = 219.0 km Gap = 175.4 deg Accuracy = C
Effects Code = Imax = 0 Fault =
75 km E (108 deg) of PIN
WESTERN AUSTRALIA
385 km SE (122 deg) of PERTH
199 km NE ( 45 deg) of ALBANY
KLB -0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.4
PHASE INFORMATION
DATA USED
BAL w P 114.00 3.00 0.40 114.20 -0.20 428.1 323 -42.2 42.2
BAL e S 161.00 0.50 0.50 157.28 3.72 428.1 323 -40.3 40.3
COOL w P 102.50 2.00 0.44 105.55 -3.05 356.3 28 -42.2 42.2
COOL e S 140.00 0.50 0.51 142.21 -2.21 356.3 28 -40.3 40.3
FORR e P 171.00 0.50 0.52 169.41 1.59 884.4 70 -42.2 42.2
FORR e S 255.00 1.00 0.41 253.39 1.61 884.4 70 -40.3 40.3
KLB e P 97.40 0.30 0.65 96.46 0.94 281.4 326 -42.2 42.2
KLB e S 128.00 0.30 0.58 126.39 1.61 281.4 326 -40.3 40.3
MUN e P 106.00 2.00 0.43 105.33 0.67 354.8 302 -42.2 42.2
MUN e S 147.20 0.20 0.62 141.84 5.36 354.8 302 -40.3 40.3
NWAO e P 88.80 0.50 0.60 88.92 -0.12 219.0 293 -42.2 42.2
NWAO e S 111.80 2.00 0.41 113.25 -1.45 219.0 293 -40.3 40.3
RKG e P 90.80 0.30 0.66 91.24 -0.44 238.1 246 -42.2 42.2
RKG e S 117.00 0.50 0.53 117.29 -0.29 238.1 246 -40.3 40.3
Velocity Ratios
NWAO RKG KLB COOL FORR
NWAO 1.71 0.00 0.00 0.00 1.74
0.09 0.00 0.00 0.00 0.06
RKG 0.00 1.76 0.00 0.00 1.72
0.00 0.03 0.00 0.00 0.04
KLB 0.00 0.00 1.74 0.00 1.73
0.00 0.00 0.02 0.00 0.04
COOL 0.00 0.00 0.00 1.81 1.68
0.00 0.00 0.00 0.09 0.09
FORR 1.74 1.72 1.73 1.68 1.73
0.06 0.04 0.04 0.09 0.02
Start
Date 1992-01-16
Origin Time 1146 2.33 +- 0.53
Zone 50
Easting 526.26 +- 2.98 Longitude 117.278
Northing 6459.47 +- 3.41 Latitude -32.000
Depth 1.00 +- 9.76 G
Arrival times = 11 S.D. = 0.316 Seismographs = 6
Nearest recorder = 64.3 km Gap = 110.0 deg Accuracy = A
Effects Code = Imax = 0 Fault =
11 km W (276 deg) of QUAI
WESTERN AUSTRALIA
135 km E ( 93 deg) of PERTH
35 km E ( 68 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.6
PHASE INFORMATION
DATA USED
BAL i-P 28.60 0.10 1.21 28.39 0.21 163.8 340 -30.8 30.8
BAL e S 47.20 0.30 0.61 47.57 -0.37 163.8 340 0.5 0.5
COOL e P 55.80 0.20 0.68 55.83 -0.03 388.0 72 -42.2 42.2
COOL e S 95.30 0.30 0.56 95.61 -0.31 388.0 72 -40.3 40.3
FORR e P 134.60 0.30 0.51 134.52 0.08 1038.8 85 -42.2 42.2
FORR e S 234.20 0.20 0.52 232.61 1.59 1038.8 85 -40.3 40.3
KLB e P 12.90 0.20 0.80 12.83 0.07 64.3 45 1.2 1.2
KLB e S 20.00 0.30 0.66 20.10 -0.10 64.3 45 1.2 1.2
MRWA e P 49.50 0.30 0.64 49.03 0.47 331.9 338 -42.2 42.2
MRWA e S 82.20 0.30 0.57 83.77 -1.57 331.9 338 -40.3 40.3
MUN e P 18.30 0.20 0.77 18.83 -0.53 101.1 271 0.7 0.7
MUN e S 30.40 0.30 0.64 30.26 0.14 101.1 271 0.7 0.7
NWAO e P 18.80 0.50 0.64 19.10 -0.30 102.7 182 0.7 0.7
NWAO e S 31.10 0.50 0.57 30.72 0.38 102.7 182 0.7 0.7
RKG e P 46.90 0.10 0.80 43.47 3.43 285.9 184 -42.2 42.2
RKG e S 79.50 0.10 0.72 74.08 5.42 285.9 184 -40.3 40.3
WARB e P 144.00 0.20 0.57 144.31 -0.31 1119.8 56 -42.2 42.2
WARB e S 250.00 0.30 0.45 249.66 0.34 1119.8 56 -40.3 40.3
WARB e SG 307.50 0.50 0.39 311.67 -4.17 1119.8 56 0.1 0.1
Velocity Ratios
KLB MUN NWAO BAL COOL
KLB 1.67 0.00 0.00 1.73 1.76
0.06 0.00 0.00 0.07 0.03
MUN 0.00 1.76 0.00 1.63 1.73
0.00 0.04 0.00 0.11 0.03
NWAO 0.00 0.00 1.75 1.64 1.74
0.00 0.00 0.09 0.19 0.06
BAL 1.73 1.63 1.64 1.71 1.77
0.07 0.11 0.19 0.02 0.04
COOL 1.76 1.73 1.74 1.77 1.74
0.03 0.03 0.06 0.04 0.01
Start
Date 1992-01-18
Origin Time 0249 50.89 +- 6.42
Zone 51
Easting 888.41 +- 13.78 Longitude 126.708
Northing 7800.17 +- 10.51 Latitude -19.856
Depth 5.00 +- 47.02 N
Arrival times = 10 S.D. = 0.917 Seismographs = 6
Nearest recorder = 505.5 km Gap = 128.5 deg Accuracy = C
Effects Code = Imax = 0 Fault =
504 km SW (205 deg) of KNA
WESTERN AUSTRALIA
ASPA 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.0
PHASE INFORMATION
DATA USED
ASPA e P 161.30 0.50 0.52 161.28 0.02 862.1 121 -42.2 42.2
ASPA e S 243.50 0.50 0.47 243.27 0.23 862.1 121 -40.3 40.3
KNA w P 127.00 5.00 0.35 118.12 8.88 505.5 25 -42.2 42.2
KNA e S 170.00 1.00 0.43 168.13 1.87 505.5 25 -40.3 40.3
KNA e SG 190.00 1.00 0.43 190.55 -0.55 505.5 25 0.6 0.6
MBL e P 145.50 0.30 0.59 145.45 0.05 731.5 257 -42.2 42.2
MBL e S 215.00 1.00 0.42 215.71 -0.71 731.5 257 -40.3 40.3
MRWA e P 233.00 1.00 0.44 238.52 -5.52 1501.1 224 -42.2 42.2
MRWA e S 375.00 1.00 0.40 377.75 -2.75 1501.1 224 -40.3 40.3
MTN e P 167.00 0.30 0.57 167.32 -0.32 912.5 31 -42.2 42.2
MTN e S 253.00 0.50 0.47 253.79 -0.79 912.5 31 -40.3 40.3
WARB e P 143.20 0.30 0.59 141.88 1.32 701.7 180 -42.2 42.2
WARB e S 209.00 0.50 0.48 209.49 -0.49 701.7 180 -40.3 40.3
WRA e P 153.30 0.50 0.53 154.44 -1.14 805.7 92 -42.2 42.2
Velocity Ratios
WARB MBL ASPA MTN
WARB 1.71 0.00 1.91 1.85
0.01 0.00 0.15 0.09
MBL 0.00 1.73 1.80 1.77
0.00 0.02 0.20 0.12
ASPA 1.91 1.80 1.74 0.00
0.15 0.20 0.01 0.00
MTN 1.85 1.77 0.00 1.74
0.09 0.12 0.00 0.01
Start
Date 1992-01-18
Origin Time 0728 54.87 +- 25.62
Zone 52
Easting 634.77 +- 294.91 Longitude 130.342
Northing 7166.73 +- 148.13 Latitude -25.611
Depth 5.00 +- 426.31 N
Arrival times = 6 S.D. = 1.296 Seismographs = 3
Nearest recorder = 376.0 km Gap = 268.0 deg Accuracy = D
Effects Code = Imax = 0 Fault =
376 km E ( 81 deg) of WARB
NORTHERN TERRITORY
75 km SW (247 deg) of AYERS ROCK
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
FORR e P 134.20 0.30 0.60 135.57 -1.37 616.6 200 -42.2 42.2
FORR e S 196.50 0.50 0.49 195.55 0.95 616.6 200 -40.3 40.3
MBL e P 205.60 0.30 0.56 204.24 1.36 1184.8 292 -42.2 42.2
MBL e S 313.00 1.00 0.40 315.12 -2.12 1184.8 292 -40.3 40.3
WARB e P 107.00 0.50 0.57 106.47 0.53 376.0 259 -42.2 42.2
WARB e S 145.00 0.50 0.51 144.88 0.12 376.0 259 -40.3 40.3
Velocity Ratios
WARB FORR MBL
WARB 1.73 1.89 1.70
0.03 0.10 0.03
FORR 1.89 1.79 1.63
0.10 0.01 0.04
MBL 1.70 1.63 1.71
0.03 0.04 0.01
Start
Date 1992-01-18
Origin Time 2042 34.63 +- 0.63
Zone 50
Easting 487.11 +- 3.18 Longitude 116.864
Northing 6485.54 +- 4.38 Latitude -31.765
Depth 6.21 +- 18.69
Arrival times = 7 S.D. = 0.184 Seismographs = 4
Nearest recorder = 66.3 km Gap = 104.4 deg Accuracy = A
Effects Code = Imax = 0 Fault =
16 km NE ( 33 deg) of YORK
WESTERN AUSTRALIA
98 km E ( 78 deg) of PERTH
20 km SW (223 deg) of Meckering
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.7
PHASE INFORMATION
DATA USED
BAL w P 47.50 2.00 0.48 55.42 -7.92 129.3 353 -30.8 30.8
BAL i S 70.20 0.10 1.11 70.39 -0.19 129.3 353 2.9 2.9
KLB i P 48.90 0.10 1.28 48.88 0.02 87.1 77 4.3 4.3
KLB i S 58.90 0.10 1.15 58.76 0.14 87.1 77 4.3 4.3
MUN i P 45.60 0.10 1.30 45.50 0.10 66.3 248 5.6 5.6
MUN i S 53.10 0.10 1.17 53.04 0.06 66.3 248 5.6 5.6
NWAO i P 56.00 0.10 1.23 55.98 0.02 133.3 165 -30.8 30.8
NWAO e S 70.90 0.20 0.67 71.50 -0.60 133.3 165 2.8 2.8
Velocity Ratios
MUN KLB NWAO
MUN 1.68 1.76 1.71
0.02 0.18 0.06
KLB 1.76 1.70 1.69
0.18 0.02 0.09
NWAO 1.71 1.69 1.70
0.06 0.09 0.02
Start
Date 1992-01-19
Origin Time 1634 8.64 +- 0.75
Zone 50
Easting 524.79 +- 4.57 Longitude 117.262
Northing 6459.38 +- 3.86 Latitude -32.001
Depth 4.69 +- 23.03
Arrival times = 8 S.D. = 0.257 Seismographs = 4
Nearest recorder = 65.4 km Gap = 135.5 deg Accuracy = A
Effects Code = Imax = 0 Fault =
12 km W (275 deg) of QUAI
WESTERN AUSTRALIA
134 km E ( 93 deg) of PERTH
34 km NE ( 67 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.7
PHASE INFORMATION
DATA USED
BAL e P 34.50 0.50 0.61 34.34 0.16 163.4 341 -30.8 30.8
BAL e S 53.60 0.30 0.61 53.66 -0.06 163.4 341 -23.9 23.9
KLB e P 19.20 0.20 0.80 19.35 -0.15 65.4 46 4.4 4.4
KLB e S 27.00 0.20 0.72 26.77 0.23 65.4 46 4.4 4.4
MRWA e SG 97.00 1.00 0.45 100.22 -3.22 331.5 338 0.9 0.9
MUN i+P 24.70 0.10 1.26 24.91 -0.21 99.6 271 2.8 2.8
MUN e S 36.70 0.20 0.69 36.20 0.50 99.6 271 2.8 2.8
NWAO e P 25.30 0.30 0.71 25.40 -0.10 102.6 181 2.8 2.8
NWAO e S 37.20 0.20 0.69 37.02 0.18 102.6 181 2.8 2.8
Velocity Ratios
KLB MUN NWAO BAL
KLB 1.74 1.76 0.00 1.74
0.05 0.18 0.00 0.12
MUN 1.76 1.75 0.00 1.72
0.18 0.02 0.00 0.17
NWAO 0.00 0.00 1.71 0.00
0.00 0.00 0.04 0.00
BAL 1.74 1.72 0.00 1.74
0.12 0.17 0.00 0.05
Start
Date 1992-01-20
Origin Time 0123 56.18 +- 0.60
Zone 50
Easting 525.17 +- 3.54 Longitude 117.266
Northing 6463.28 +- 3.86 Latitude -31.966
Depth 5.03 +- 20.00
Arrival times = 8 S.D. = 0.191 Seismographs = 4
Nearest recorder = 62.5 km Gap = 133.3 deg Accuracy = A
Effects Code = Imax = 0 Fault =
13 km NW (292 deg) of QUAI
WESTERN AUSTRALIA
134 km E ( 91 deg) of PERTH
35 km S (174 deg) of Cunderdin
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
PHASE INFORMATION
DATA USED
BAL e P 81.50 0.50 0.61 81.34 0.16 159.8 340 -30.8 30.8
BAL e S 100.20 0.30 0.61 100.26 -0.06 159.8 340 -23.9 23.9
KLB i-P 66.20 0.10 1.31 66.41 -0.21 62.5 48 4.9 4.9
KLB i S 73.70 0.10 1.18 73.51 0.19 62.5 48 4.9 4.9
MRWA e S 137.00 0.30 0.51 136.06 0.94 328.0 337 -40.3 40.3
MUN e P 72.40 0.20 0.77 72.51 -0.11 100.0 268 3.0 3.0
MUN e S 84.00 0.20 0.69 83.84 0.16 100.0 268 3.0 3.0
NWAO e P 73.50 0.20 0.76 73.58 -0.08 106.5 181 2.8 2.8
NWAO e S 85.80 0.20 0.69 85.64 0.16 106.5 181 2.8 2.8
Velocity Ratios
KLB MUN NWAO BAL
KLB 1.75 1.66 1.66 1.73
0.03 0.14 0.11 0.10
MUN 1.66 1.72 0.00 0.00
0.14 0.03 0.00 0.00
NWAO 1.66 0.00 1.71 0.00
0.11 0.00 0.03 0.00
BAL 1.73 0.00 0.00 1.74
0.10 0.00 0.00 0.05
Start
Date 1992-01-20
Origin Time 1048 12.38 +- 0.80
Zone 50
Easting 525.44 +- 4.92 Longitude 117.269
Northing 6459.51 +- 3.77 Latitude -32.000
Depth 5.08 +- 24.57
Arrival times = 7 S.D. = 0.138 Seismographs = 4
Nearest recorder = 64.9 km Gap = 136.1 deg Accuracy = A
Effects Code = Imax = 0 Fault =
11 km W (276 deg) of QUAI
WESTERN AUSTRALIA
134 km E ( 93 deg) of PERTH
35 km NE ( 68 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.7
PHASE INFORMATION
DATA USED
BAL e P 39.00 0.50 0.61 38.05 0.95 163.5 340 -30.8 30.8
BAL e S 57.40 0.30 0.61 57.38 0.02 163.5 340 -23.9 23.9
KLB e P 23.00 0.20 0.80 23.00 0.00 64.9 45 4.7 4.7
KLB e S 30.40 0.20 0.72 30.36 0.04 64.9 45 4.7 4.7
MUN e P 28.50 0.30 0.71 28.76 -0.26 100.3 271 3.0 3.0
MUN e S 40.30 0.20 0.69 40.11 0.19 100.3 271 3.0 3.0
NWAO e P 29.10 0.20 0.77 29.16 -0.06 102.8 181 3.0 3.0
NWAO e S 40.90 0.20 0.69 40.80 0.10 102.8 181 3.0 3.0
Velocity Ratios
KLB MUN NWAO
KLB 1.70 0.00 1.72
0.05 0.00 0.19
MUN 0.00 1.73 0.00
0.00 0.05 0.00
NWAO 1.72 0.00 1.71
0.19 0.00 0.03
Start
Date 1992-01-21
Origin Time 1244 49.34 +- 0.53
Zone 50
Easting 504.33 +- 2.97 Longitude 117.046
Northing 6491.74 +- 4.20 Latitude -31.710
Depth 1.00 +- 12.47 G
Arrival times = 11 S.D. = 0.354 Seismographs = 6
Nearest recorder = 69.0 km Gap = 93.4 deg Accuracy = A
Effects Code = Imax = 0 Fault =
33 km NE ( 52 deg) of YORK
WESTERN AUSTRALIA
116 km E ( 77 deg) of PERTH
9 km S (159 deg) of Meckering
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.5
PHASE INFORMATION
DATA USED
BAL i+P 69.70 0.10 1.24 69.97 -0.27 126.4 345 0.6 0.6
BAL e S 84.20 0.20 0.68 84.27 -0.07 126.4 345 0.6 0.6
COOL e P 105.20 0.20 0.68 104.40 0.80 401.0 77 -42.2 42.2
COOL e S 142.50 0.50 0.51 145.34 -2.84 401.0 77 -40.3 40.3
COOL e SG 156.40 1.00 0.44 160.11 -3.71 401.0 77 0.2 0.2
FORR e P 185.00 0.50 0.51 183.94 1.06 1058.7 87 -42.2 42.2
FORR e S 283.30 0.30 0.51 283.81 -0.51 1058.7 87 -40.3 40.3
GOO S-P 4.20 0.50 0.84 4.47 -0.27 39.5 332 0.0 0.0
KLB i-P 60.40 0.10 1.30 60.59 -0.19 69.0 79 1.1 1.1
KLB i S 68.70 0.10 1.17 68.40 0.30 69.0 79 1.1 1.1
MRWA e P 91.50 0.50 0.58 91.44 0.06 293.9 339 -42.2 42.2
MRWA e S 123.00 0.50 0.52 122.77 0.23 293.9 339 -40.3 40.3
MRWA e SG 128.00 0.50 0.52 130.54 -2.54 293.9 339 0.3 0.3
MUN i-P 63.20 0.10 1.28 63.15 0.05 84.6 249 0.8 0.8
MUN i S 73.00 0.10 1.15 72.73 0.27 84.6 249 0.8 0.8
NWAO e P 70.80 0.10 0.86 71.51 -0.71 136.1 172 -30.8 30.8
NWAO e S 86.90 0.10 0.77 86.93 -0.03 136.1 172 0.5 0.5
WARB e P 191.00 0.50 0.51 191.51 -0.51 1121.3 59 -42.2 42.2
WARB e S 298.30 0.30 0.51 296.99 1.31 1121.3 59 -40.3 40.3
Velocity Ratios
KLB MUN BAL NWAO MRWA
KLB 1.75 1.54 1.67 1.75 1.75
0.03 0.20 0.07 0.05 0.05
MUN 1.54 1.71 1.72 1.83 1.77
0.20 0.02 0.10 0.08 0.06
BAL 1.67 1.72 1.71 0.00 1.78
0.07 0.10 0.02 0.00 0.08
NWAO 1.75 1.83 0.00 1.75 1.74
0.05 0.08 0.00 0.01 0.08
MRWA 1.75 1.77 1.78 1.74 1.75
0.05 0.06 0.08 0.08 0.03
Start
Date 1992-01-21
Origin Time 2307 49.09 +- 0.76
Zone 50
Easting 504.88 +- 5.09 Longitude 117.051
Northing 6491.95 +- 4.62 Latitude -31.708
Depth 5.00 +- 16.27 N
Arrival times = 9 S.D. = 0.397 Seismographs = 5
Nearest recorder = 68.4 km Gap = 94.4 deg Accuracy = A
Effects Code = Imax = 0 Fault =
33 km NE ( 52 deg) of YORK
WESTERN AUSTRALIA
117 km E ( 77 deg) of PERTH
9 km SE (155 deg) of Meckering
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.4
PHASE INFORMATION
DATA USED
BAL i-P 69.40 0.10 1.24 69.57 -0.17 126.4 344 -30.8 30.8
BAL e S 83.50 0.20 0.68 84.03 -0.53 126.4 344 2.4 2.4
GOO S-P 4.30 0.50 0.84 4.52 -0.22 39.6 331 0.0 0.0
KLB e P 60.40 0.20 0.79 60.28 0.12 68.4 79 4.4 4.4
KLB e S 68.40 0.20 0.71 68.04 0.36 68.4 79 4.4 4.4
MRWA e P 91.70 0.30 0.64 90.75 0.95 293.9 339 -42.2 42.2
MRWA e S 127.00 0.50 0.52 121.81 5.19 293.9 339 -40.3 40.3
MUN e P 63.10 0.10 0.89 63.02 0.08 85.2 249 3.5 3.5
MUN e S 73.00 0.10 0.80 72.68 0.32 85.2 249 3.5 3.5
NWAO e P 70.50 0.10 0.86 70.95 -0.45 136.2 172 -30.8 30.8
NWAO e S 86.60 0.10 0.77 86.74 -0.14 136.2 172 2.2 2.2
Velocity Ratios
KLB MUN BAL NWAO
KLB 1.71 0.00 1.68 1.80
0.05 0.00 0.10 0.09
MUN 0.00 1.71 1.67 1.84
0.00 0.02 0.10 0.08
BAL 1.68 1.67 1.69 0.00
0.10 0.10 0.02 0.00
NWAO 1.80 1.84 0.00 1.75
0.09 0.08 0.00 0.01
Start
Date 1992-01-23
Origin Time 1735 3.12 +- 1.35
Zone 50
Easting 525.18 +- 8.18 Longitude 117.267
Northing 6458.90 +- 10.02 Latitude -32.006
Depth 6.54 +- 52.11
Arrival times = 7 S.D. = 0.225 Seismographs = 4
Nearest recorder = 65.5 km Gap = 136.2 deg Accuracy = A
Effects Code = Imax = 0 Fault =
12 km W (273 deg) of QUAI
WESTERN AUSTRALIA
134 km E ( 93 deg) of PERTH
34 km E ( 68 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.7
PHASE INFORMATION
DATA USED
BAL e S 48.00 1.00 0.48 48.07 -0.07 163.9 340 -23.9 23.9
KLB i P 14.10 0.10 1.31 13.86 0.24 65.5 45 6.0 6.0
KLB i S 21.10 0.10 1.18 21.30 -0.20 65.5 45 6.0 6.0
MUN e P 19.30 0.20 0.77 19.47 -0.17 100.0 271 3.9 3.9
MUN e S 30.90 0.20 0.69 30.81 0.09 100.0 271 3.9 3.9
NWAO e P 19.60 1.00 0.56 19.82 -0.22 102.1 181 3.8 3.8
NWAO e S 31.40 0.30 0.64 31.39 0.01 102.1 181 3.8 3.8
Velocity Ratios
KLB MUN NWAO
KLB 1.64 1.88 0.00
0.02 0.18 0.00
MUN 1.88 1.72 0.00
0.18 0.03 0.00
NWAO 0.00 0.00 1.72
0.00 0.00 0.13
Start
Date 1992-01-23
Origin Time 1746 37.57 +- 48.87
Zone 50
Easting 536.81 +- 292.36 Longitude 117.401
Northing 6185.39 +-1308.55 Latitude -34.472
Depth 5.00 +-1428.00 N
Arrival times = 5 S.D. = 0.721 Seismographs = 3
Nearest recorder = 37.4 km Gap = 247.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
37 km E ( 73 deg) of RKG
WESTERN AUSTRALIA
315 km SE (153 deg) of PERTH
73 km NW (324 deg) of ALBANY
24 km SW (216 deg) of Cranbrook
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
PHASE INFORMATION
DATA USED
BAL e S 153.00 1.00 0.44 139.66 13.34 433.4 351 -40.3 40.3
KLB e S 118.00 1.00 0.45 116.01 1.99 321.1 6 -40.3 40.3
KLB e SG 123.30 0.30 0.57 126.29 -2.99 321.1 6 0.9 0.9
MUN e P 84.00 1.00 0.51 79.72 4.28 298.0 337 -42.2 42.2
MUN e S 116.80 0.30 0.58 111.13 5.67 298.0 337 -40.3 40.3
NWAO e P 72.90 0.10 0.84 64.45 8.45 172.1 354 -30.8 30.8
NWAO e S 83.60 0.30 0.61 84.63 -1.03 172.1 354 -40.3 40.3
RKG S-P 4.40 0.20 1.19 4.28 0.12 37.4 253 0.0 0.0
RKG e P 43.70 0.10 0.96 43.74 -0.04 37.4 253 8.1 8.1
RKG e S 48.00 0.50 0.62 48.01 -0.01 37.4 253 8.1 8.1
Velocity Ratios
RKG
RKG 1.70
0.11
Start
Date 1992-01-25
Origin Time 0612 43.15 +- 0.82
Zone 50
Easting 525.17 +- 5.08 Longitude 117.266
Northing 6458.51 +- 4.09 Latitude -32.009
Depth 4.65 +- 21.42
Arrival times = 8 S.D. = 0.190 Seismographs = 4
Nearest recorder = 65.7 km Gap = 136.5 deg Accuracy = A
Effects Code = Imax = 0 Fault =
12 km W (271 deg) of QUAI
WESTERN AUSTRALIA
134 km E ( 93 deg) of PERTH
34 km E ( 69 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.6
PHASE INFORMATION
DATA USED
BAL e P 69.30 0.50 0.61 68.97 0.33 164.3 341 -30.8 30.8
BAL e S 88.20 0.20 0.66 88.40 -0.20 164.3 341 -23.9 23.9
KLB e P 54.00 0.20 0.80 53.90 0.10 65.7 45 4.3 4.3
KLB e S 61.30 0.30 0.66 61.36 -0.06 65.7 45 4.3 4.3
MRWA e SG 131.50 0.50 0.52 134.98 -3.48 332.4 338 0.9 0.9
MUN e P 59.30 0.50 0.64 59.48 -0.18 100.0 271 2.8 2.8
MUN e S 70.90 0.10 0.79 70.81 0.09 100.0 271 2.8 2.8
NWAO e P 59.50 0.50 0.64 59.76 -0.26 101.8 181 2.8 2.8
NWAO e S 71.40 0.20 0.69 71.29 0.11 101.8 181 2.8 2.8
Velocity Ratios
KLB MUN NWAO BAL
KLB 1.67 0.00 0.00 1.76
0.06 0.00 0.00 0.12
MUN 0.00 1.72 0.00 0.00
0.00 0.06 0.00 0.00
NWAO 0.00 0.00 1.73 0.00
0.00 0.00 0.07 0.00
BAL 1.76 0.00 0.00 1.72
0.12 0.00 0.00 0.04
Start
Date 1992-01-26
Origin Time 0310 12.68 +- 0.51
Zone 50
Easting 526.16 +- 2.45 Longitude 117.277
Northing 6458.82 +- 3.04 Latitude -32.006
Depth 7.27 +- 12.75
Arrival times = 8 S.D. = 0.148 Seismographs = 4
Nearest recorder = 64.8 km Gap = 137.4 deg Accuracy = A
Effects Code = Imax = 0 Fault =
11 km W (273 deg) of QUAI
WESTERN AUSTRALIA
135 km E ( 93 deg) of PERTH
35 km E ( 69 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.7
PHASE INFORMATION
DATA USED
BAL e P 38.50 0.30 0.68 38.30 0.20 164.3 340 -30.8 30.8
BAL e S 57.50 0.20 0.66 57.66 -0.16 164.3 340 -23.9 23.9
KLB e P 23.50 0.20 0.80 23.33 0.17 64.8 44 6.7 6.7
KLB e S 30.60 0.20 0.72 30.71 -0.11 64.8 44 6.7 6.7
MRWA e SG 101.00 0.50 0.52 104.56 -3.56 332.5 338 1.3 1.3
MUN e P 29.10 0.20 0.77 29.21 -0.11 101.0 271 4.3 4.3
MUN i S 40.70 0.10 1.13 40.66 0.04 101.0 271 4.3 4.3
NWAO e P 29.20 0.20 0.77 29.39 -0.19 102.1 182 4.2 4.2
NWAO e S 41.10 0.30 0.64 40.97 0.13 102.1 182 4.2 4.2
Velocity Ratios
KLB MUN NWAO BAL
KLB 1.66 1.80 0.00 1.79
0.05 0.20 0.00 0.09
MUN 1.80 1.71 0.00 1.79
0.20 0.03 0.00 0.13
NWAO 0.00 0.00 1.72 1.76
0.00 0.00 0.04 0.16
BAL 1.79 1.79 1.76 1.74
0.09 0.13 0.16 0.03
Start
Date 1992-01-26
Origin Time 2312 49.56 +- 3.01
Zone 50
Easting 526.82 +- 11.38 Longitude 117.284
Northing 6456.50 +- 31.24 Latitude -32.027
Depth 5.00 +- 34.46 N
Arrival times = 6 S.D. = 0.179 Seismographs = 3
Nearest recorder = 66.0 km Gap = 229.8 deg Accuracy = B
Effects Code = Imax = 0 Fault =
10 km W (260 deg) of QUAI
WESTERN AUSTRALIA
136 km E ( 94 deg) of PERTH
35 km E ( 73 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.3
PHASE INFORMATION
DATA USED
BAL i P 75.90 0.10 1.21 75.70 0.20 166.7 340 -30.8 30.8
BAL e S 95.10 0.20 0.66 95.39 -0.29 166.7 340 -23.9 23.9
COOL e P 110.00 0.10 0.78 102.66 7.34 388.4 71 -42.2 42.2
COOL e S 142.00 0.10 0.70 142.19 -0.19 388.4 71 -40.3 40.3
KLB i P 60.40 0.10 1.30 60.36 0.04 66.0 43 4.6 4.6
KLB e S 67.70 0.20 0.72 67.86 -0.16 66.0 43 4.6 4.6
MRWA e P 96.70 0.30 0.63 96.17 0.53 334.9 338 -42.2 42.2
MRWA e S 131.00 0.50 0.52 130.90 0.10 334.9 338 -40.3 40.3
MRWA e SG 137.80 0.20 0.62 142.08 -4.28 334.9 338 0.9 0.9
MUN i P 66.00 0.10 1.26 66.18 -0.18 101.8 272 3.0 3.0
MUN i S 77.80 0.10 1.13 77.70 0.10 101.8 272 3.0 3.0
RKG e P 91.50 0.30 0.58 89.90 1.60 283.0 185 -42.2 42.2
RKG e S 123.00 1.00 0.36 119.98 3.02 283.0 185 -40.3 40.3
RKG e SG 126.00 0.30 0.52 127.76 -1.76 283.0 185 1.1 1.1
Velocity Ratios
KLB MUN BAL
KLB 1.67 1.80 1.77
0.03 0.12 0.05
MUN 1.80 1.72 1.75
0.12 0.02 0.07
BAL 1.77 1.75 1.73
0.05 0.07 0.01
Start
Date 1992-01-28
Origin Time 1150 30.23 +- 11.25
Zone 50
Easting 539.27 +- 63.45 Longitude 117.428
Northing 6183.14 +- 82.51 Latitude -34.493
Depth 5.00 +- 85.91 N
Arrival times = 6 S.D. = 0.906 Seismographs = 3
Nearest recorder = 39.2 km Gap = 251.6 deg Accuracy = D
Effects Code = Imax = 0 Fault =
39 km E ( 77 deg) of RKG
WESTERN AUSTRALIA
318 km SE (153 deg) of PERTH
69 km NW (324 deg) of ALBANY
24 km SW (208 deg) of Cranbrook
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
PHASE INFORMATION
DATA USED
KLB e S 111.00 0.30 0.57 109.08 1.92 323.1 5 -40.3 40.3
KLB e SG 117.00 0.30 0.57 119.49 -2.49 323.1 5 0.9 0.9
MUN e S 105.50 0.20 0.63 104.42 1.08 301.0 337 -40.3 40.3
MUN e SG 110.00 0.30 0.52 113.39 -3.39 301.0 337 1.0 1.0
RKG S-P 4.50 0.10 1.36 4.48 0.02 39.2 257 0.0 0.0
RKG i-P 36.60 0.10 1.36 36.69 -0.09 39.2 257 7.7 7.7
RKG i S 41.10 0.10 1.22 41.17 -0.07 39.2 257 7.7 7.7
Velocity Ratios
RKG
RKG 1.71
0.04
Start
Date 1992-01-31
Origin Time 0132 55.74 +- 6.36
Zone 50
Easting 534.32 +- 44.77 Longitude 117.374
Northing 6191.28 +- 25.31 Latitude -34.419
Depth 5.00 +- 56.32 N
Arrival times = 7 S.D. = 0.827 Seismographs = 3
Nearest recorder = 37.3 km Gap = 236.5 deg Accuracy = D
Effects Code = Imax = 0 Fault =
37 km NE ( 63 deg) of RKG
WESTERN AUSTRALIA
309 km SE (153 deg) of PERTH
79 km NW (325 deg) of ALBANY
21 km SW (231 deg) of Cranbrook
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.1
PHASE INFORMATION
DATA USED
KLB e S 136.00 1.00 0.45 133.00 3.00 315.5 6 -40.3 40.3
KLB e SG 142.00 0.30 0.57 142.92 -0.92 315.5 6 1.0 1.0
MUN e S 129.00 0.50 0.52 127.95 1.05 291.6 337 -40.3 40.3
MUN e SG 135.00 0.50 0.52 136.30 -1.30 291.6 337 1.0 1.0
RKG S-P 4.50 0.10 1.37 4.26 0.24 37.3 243 0.0 0.0
RKG i-P 61.70 0.10 1.37 61.88 -0.18 37.3 243 8.1 8.1
RKG i S 66.20 0.10 1.23 66.14 0.06 37.3 243 8.1 8.1
Velocity Ratios
RKG
RKG 1.75
0.05
Start
Date 1992-01-31
Origin Time 0745 30.11 +- 49.03
Zone 50
Easting 525.12 +- 234.16 Longitude 117.259
Northing 6723.64 +- 94.87 Latitude -29.617
Depth 5.00 +- 277.57 N
Arrival times = 7 S.D. = 0.685 Seismographs = 4
Nearest recorder = 121.9 km Gap = 238.2 deg Accuracy = C
Effects Code = Imax = 0 Fault =
50 km N (350 deg) of KOO3
WESTERN AUSTRALIA
292 km NE ( 28 deg) of PERTH
18 km NE ( 36 deg) of Mt Gibson Mine
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
BAL i P 49.00 0.10 1.24 49.97 -0.97 121.9 205 -30.8 30.8
BAL i S 64.30 0.10 1.12 63.83 0.47 121.9 205 2.5 2.5
KLB e P 64.00 0.10 0.82 63.32 0.68 224.1 167 -42.2 42.2
KLB e S 89.00 0.10 0.74 88.12 0.88 224.1 167 -40.3 40.3
MRWA i-P 51.60 0.10 1.23 51.14 0.46 130.3 289 -30.8 30.8
MRWA i S 66.10 0.10 1.11 66.13 -0.03 130.3 289 2.3 2.3
MUN i-P 69.60 0.10 1.15 70.13 -0.53 280.4 200 -42.2 42.2
MUN i S 101.50 0.10 1.03 99.96 1.54 280.4 200 -40.3 40.3
Velocity Ratios
BAL MRWA KLB
BAL 1.81 0.69 1.65
0.01 0.14 0.04
MRWA 0.69 1.67 1.85
0.14 0.01 0.05
KLB 1.65 1.85 1.74
0.04 0.05 0.01
Start
Date 1992-02-06
Origin Time 0303 53.15 +- 0.00
Zone 50
Easting 690.32 +- 0.00 Longitude 119.090
Northing 6106.42 +- 0.00 Latitude -35.167
Depth 5.00 +- 0.00 N
Arrival times = 4 S.D. = 3.230 Seismographs = 3
Nearest recorder = 201.3 km Gap = 306.3 deg Accuracy = D
Effects Code = Imax = 0 Fault =
165 km SE (150 deg) of GNOW
WESTERN AUSTRALIA
467 km SE (141 deg) of PERTH
113 km E (100 deg) of ALBANY
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
KLB e S 155.00 1.00 0.44 151.42 3.58 415.3 342 -40.3 40.3
MUN e S 152.00 1.00 0.44 157.30 -5.30 443.3 322 -40.3 40.3
RKG e P 83.00 0.30 0.67 83.61 -0.61 201.3 288 -42.2 42.2
RKG e S 108.00 0.30 0.60 106.36 1.64 201.3 288 -40.3 40.3
Velocity Ratios
RKG
RKG 1.84
0.03
Start
Date 1992-02-13
Origin Time 1321 4.88 +- 6.27
Zone 50
Easting 519.31 +- 14.99 Longitude 117.205
Northing 6435.63 +- 44.38 Latitude -32.216
Depth 7.90 +- 20.52
Arrival times = 6 S.D. = 0.223 Seismographs = 3
Nearest recorder = 86.8 km Gap = 248.2 deg Accuracy = B
Effects Code = Imax = 0 Fault =
28 km SW (218 deg) of QUAI
WESTERN AUSTRALIA
131 km E (103 deg) of PERTH
24 km NE ( 55 deg) of Brookton
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
PHASE INFORMATION
DATA USED
BAL e P 32.50 0.50 0.61 32.99 -0.49 184.5 345 -42.2 42.2
BAL e S 54.30 0.20 0.66 54.04 0.26 184.5 345 -40.3 40.3
COOL w SG 117.00 1.00 0.45 116.04 0.96 402.3 69 1.2 1.2
KLB e P 19.30 0.20 0.78 19.11 0.19 86.8 37 5.4 5.4
KLB i S 28.90 0.20 1.00 28.97 -0.07 86.8 37 5.4 5.4
MRWA e S2 96.50 0.50 0.24 97.12 -0.62 351.8 340 -23.9 23.9
MUN e P 21.00 0.20 0.77 20.87 0.13 97.6 285 4.8 4.8
MUN i S 31.90 0.20 0.99 31.95 -0.05 97.6 285 4.8 4.8
NWAO e P 20.20 0.50 0.65 17.82 2.38 78.9 178 5.9 5.9
NWAO e S 35.00 0.50 0.59 26.78 8.22 78.9 178 5.9 5.9
Velocity Ratios
KLB MUN BAL
KLB 1.67 0.00 1.92
0.04 0.00 0.14
MUN 0.00 1.68 1.95
0.00 0.03 0.16
BAL 1.92 1.95 1.79
0.14 0.16 0.04
Start
Date 1992-02-18
Origin Time 1415 24.12 +- 0.72
Zone 50
Easting 523.38 +- 4.12 Longitude 117.248
Northing 6459.90 +- 3.97 Latitude -31.997
Depth 0.88 +- 27.38
Arrival times = 8 S.D. = 0.119 Seismographs = 4
Nearest recorder = 66.1 km Gap = 133.5 deg Accuracy = A
Effects Code = Imax = 0 Fault =
14 km W (276 deg) of QUAI
WESTERN AUSTRALIA
132 km E ( 93 deg) of PERTH
33 km NE ( 66 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 1.9
PHASE INFORMATION
DATA USED
BAL e P 50.00 0.30 0.68 50.00 0.00 162.4 341 -30.8 30.8
BAL e S 69.00 0.30 0.61 68.99 0.01 162.4 341 0.4 0.4
KLB e P 35.00 0.10 0.91 34.90 0.10 66.1 47 1.0 1.0
KLB e S 42.30 0.20 0.72 42.38 -0.08 66.1 47 1.0 1.0
MRWA e S 106.00 1.00 0.45 105.27 0.73 330.5 338 -40.3 40.3
MUN e P 40.10 0.10 0.88 40.14 -0.04 98.2 270 0.7 0.7
MUN e S 51.30 0.30 0.64 51.25 0.05 98.2 270 0.7 0.7
NWAO e P 40.70 0.50 0.64 40.94 -0.24 103.1 180 0.6 0.6
NWAO e S 52.80 0.50 0.57 52.60 0.20 103.1 180 0.6 0.6
Velocity Ratios
KLB MUN NWAO BAL
KLB 1.67 1.76 0.00 1.78
0.03 0.17 0.00 0.08
MUN 1.76 1.70 0.00 1.79
0.17 0.03 0.00 0.14
NWAO 0.00 0.00 1.73 0.00
0.00 0.00 0.08 0.00
BAL 1.78 1.79 0.00 1.73
0.08 0.14 0.00 0.03
Start
Date 1992-02-22
Origin Time 0417 6.36 +- 14.30
Zone 52
Easting 326.26 +- 181.34 Longitude 127.305
Northing 7453.68 +- 129.97 Latitude -23.016
Depth 5.00 +- 225.06 N
Arrival times = 7 S.D. = 0.719 Seismographs = 4
Nearest recorder = 357.3 km Gap = 251.6 deg Accuracy = C
Effects Code = Imax = 0 Fault =
353 km N ( 12 deg) of WBN
WESTERN AUSTRALIA
149 km W (250 deg) of LAKE MACKAY
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.6
PHASE INFORMATION
DATA USED
COOL w S 240.00 3.00 0.33 241.89 -1.89 1067.1 213 -40.3 40.3
FORR e P 117.00 1.00 0.45 117.17 -0.17 865.5 175 -42.2 42.2
FORR e S 199.00 1.00 0.41 199.46 -0.46 865.5 175 -40.3 40.3
MBL P 109.00 1.00 0.65 109.34 -0.34 801.1 283 -42.2 42.2
MBL S 186.00 0.10 0.93 185.84 0.16 801.1 283 -40.3 40.3
WARB e P 56.00 0.30 0.63 55.70 0.30 357.3 190 -42.2 42.2
WARB w S 94.00 2.00 0.40 92.44 1.56 357.3 190 -40.3 40.3
Velocity Ratios
WARB MBL FORR
WARB 1.77 1.74 1.72
0.05 0.08 0.09
MBL 1.74 1.75 0.00
0.08 0.02 0.00
FORR 1.72 0.00 1.74
0.09 0.00 0.03
Start
Date 1992-02-22
Origin Time 1238 5.42 +- 4.92
Zone 50
Easting 622.70 +- 13.36 Longitude 118.294
Northing 6496.87 +- 51.96 Latitude -31.657
Depth 5.00 +- 30.18 N
Arrival times = 6 S.D. = 0.395 Seismographs = 4
Nearest recorder = 51.2 km Gap = 186.0 deg Accuracy = D
Effects Code = Imax = 0 Fault =
51 km E ( 98 deg) of KLB
WESTERN AUSTRALIA
234 km E ( 83 deg) of PERTH
20 km S (173 deg) of Merredin
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.7
PHASE INFORMATION
DATA USED
BAL SG 58.00 0.30 0.86 58.18 -0.18 190.9 307 1.6 1.6
COOL S 76.50 0.50 0.75 76.26 0.24 284.8 73 -40.3 40.3
COOL SG 84.00 0.50 0.75 84.12 -0.12 284.8 73 1.1 1.1
KLB e P 13.70 0.20 0.81 13.82 -0.12 51.2 277 5.9 5.9
KLB e S 20.40 0.30 0.67 19.64 0.76 51.2 277 5.9 5.9
MRWA e S2 94.00 1.00 0.25 97.26 -3.26 348.9 320 -23.9 23.9
MUN e P 34.40 0.30 0.67 35.79 -1.39 200.6 259 -42.2 42.2
MUN e S 58.00 0.20 0.65 58.49 -0.49 200.6 259 -40.3 40.3
MUN e S2 58.00 0.20 0.36 59.81 -1.81 200.6 259 -23.9 23.9
Velocity Ratios
KLB
KLB 1.81
0.08
Start
Date 1992-02-27
Origin Time 0523 34.26 +- 0.00
Zone 52
Easting 647.00 +- 0.00 Longitude 130.458
Northing 7220.82 +- 0.00 Latitude -25.121
Depth 5.00 +- 0.00 N
Arrival times = 4 S.D. = 0.647 Seismographs = 2
Nearest recorder = 400.6 km Gap = 307.8 deg Accuracy = D
Effects Code = Imax = 0 Fault =
383 km SW (244 deg) of ASPA
NORTHERN TERRITORY
63 km NW (294 deg) of AYERS ROCK
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
FORR w P 122.50 2.00 0.41 121.60 0.90 671.5 199 -42.2 42.2
FORR e S 186.00 1.00 0.42 186.51 -0.51 671.5 199 -40.3 40.3
HWK P 90.00 0.10 1.06 126.58 -36.58 713.0 140 -42.2 42.2
WARB e P 88.50 0.30 0.62 88.85 -0.35 400.6 252 -42.2 42.2
WARB e S 130.00 1.00 0.44 129.48 0.52 400.6 252 -40.3 40.3
Velocity Ratios
WARB FORR
WARB 1.77 1.65
0.03 0.18
FORR 1.65 1.72
0.18 0.05
Start
Date 1992-02-27
Origin Time 1012 16.74 +- 0.00
Zone 51
Easting 319.76 +- 0.00 Longitude 121.229
Northing 7350.55 +- 0.00 Latitude -23.947
Depth 5.00 +- 0.00 N
Arrival times = 4 S.D. = 0.845 Seismographs = 3
Nearest recorder = 340.5 km Gap = 245.5 deg Accuracy = D
Effects Code = Imax = 0 Fault =
149 km E ( 92 deg) of MY37
WESTERN AUSTRALIA
163 km W (252 deg) of LAKE DISAPPOINTMENT
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.1
PHASE INFORMATION
DATA USED
MBL e P 64.70 0.20 0.69 64.02 0.68 340.5 334 -42.2 42.2
MBL e S 98.20 0.20 0.62 99.24 -1.04 340.5 334 -40.3 40.3
MRWA SG 233.00 1.00 0.59 233.41 -0.41 784.3 220 0.4 0.4
NANU w S 156.00 1.00 0.43 155.56 0.44 608.1 283 -40.3 40.3
Velocity Ratios
MBL
MBL 1.70
0.01
Start
Date 1992-02-29
Origin Time 0853 26.53 +- 0.99
Zone 50
Easting 510.75 +- 9.52 Longitude 117.112
Northing 6595.00 +- 9.44 Latitude -30.778
Depth 1.00 +- 21.24 G
Arrival times = 8 S.D. = 0.184 Seismographs = 5
Nearest recorder = 4.0 km Gap = 178.0 deg Accuracy = A
Effects Code = Imax = 0 Fault =
2 km SW (246 deg) of CADX
WESTERN AUSTRALIA
177 km NE ( 43 deg) of PERTH
2 km SW (243 deg) of Cadoux
CAK 0.00 Seismograph details unknown
CAS 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
PHASE INFORMATION
DATA USED
BAL i P 33.60 0.10 1.35 33.59 0.01 43.2 296 1.7 1.7
BAL i S 38.30 0.10 1.21 38.48 -0.18 43.2 296 1.7 1.7
CAK S-P 5.00 5.00 0.70 0.83 4.17 7.2 22 0.0 0.0
CAS S-P 0.35 1.00 1.00 0.48 -0.13 4.0 152 0.0 0.0
KLB i P 44.50 0.10 1.25 44.36 0.14 109.3 145 0.7 0.7
KLB i S 56.50 0.10 1.13 56.72 -0.22 109.3 145 0.7 0.7
MRWA e P 58.00 0.10 0.83 57.72 0.28 203.6 327 -42.2 42.2
MRWA e S 81.50 0.10 0.75 80.96 0.54 203.6 327 -40.3 40.3
MUN e P 52.00 0.10 0.85 51.83 0.17 158.4 212 -30.8 30.8
MUN e S 70.50 0.10 0.76 70.29 0.21 158.4 212 0.5 0.5
NWAO SG 92.00 1.00 0.53 92.40 -0.40 238.4 177 0.3 0.3
Velocity Ratios
BAL KLB MUN
BAL 1.66 1.67 1.75
0.04 0.05 0.03
KLB 1.67 1.67 1.87
0.05 0.01 0.08
MUN 1.75 1.87 1.73
0.03 0.08 0.01
Start
Date 1992-02-29
Origin Time 1610 27.16 +- 44.20
Zone 52
Easting 626.56 +- 451.69 Longitude 130.256
Northing 7216.35 +- 317.39 Latitude -25.163
Depth 5.00 +- 669.33 N
Arrival times = 6 S.D. = 1.293 Seismographs = 4
Nearest recorder = 379.8 km Gap = 267.9 deg Accuracy = D
Effects Code = Imax = 0 Fault =
379 km E ( 73 deg) of WARB
NORTHERN TERRITORY
81 km W (285 deg) of AYERS ROCK
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
COOL w S 265.50 5.00 0.29 269.31 -3.81 1098.5 232 -40.3 40.3
FORR e P 113.00 0.20 0.64 113.16 -0.16 660.3 198 -42.2 42.2
FORR e S 177.40 0.20 0.58 177.06 0.34 660.3 198 -40.3 40.3
MBL w S 281.00 5.00 0.29 281.89 -0.89 1158.5 290 -40.3 40.3
WARB e P 79.50 0.50 0.57 79.23 0.27 379.8 251 -42.2 42.2
WARB e S 119.50 1.00 0.44 117.99 1.51 379.8 251 -40.3 40.3
Velocity Ratios
WARB FORR
WARB 1.76 1.73
0.04 0.07
FORR 1.73 1.75
0.07 0.01
Start
Date 1992-02-29
Origin Time 1911 26.05 +- 98.71
Zone 51
Easting 190.77 +-3518.30 Longitude 119.877
Northing 6979.42 +-4017.57 Latitude -27.273
Depth 5.00 +-6645.54 N
Arrival times = 8 S.D. = 4.156 Seismographs = 4
Nearest recorder = 438.8 km Gap = 323.1 deg Accuracy = D
Effects Code = Imax = 0 Fault =
354 km S (177 deg) of MY35
WESTERN AUSTRALIA
649 km NE ( 38 deg) of PERTH
157 km SE (120 deg) of MEEKATHARRA
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
BAL e P 93.00 0.10 0.76 90.54 2.46 482.7 219 -42.2 42.2
BAL e S 143.50 0.10 0.69 138.51 4.99 482.7 219 -40.3 40.3
KLB e P 98.00 0.10 0.76 95.25 2.75 521.7 202 -42.2 42.2
KLB e S 150.00 0.10 0.68 146.71 3.29 521.7 202 -40.3 40.3
MRWA e P 85.00 0.10 0.77 85.22 -0.22 438.8 239 -42.2 42.2
MRWA e S 130.00 0.10 0.69 129.25 0.75 438.8 239 -40.3 40.3
MUN i P 105.90 0.10 1.06 108.64 -2.74 632.5 213 -42.2 42.2
MUN e S 161.00 0.10 0.67 170.03 -9.03 632.5 213 -40.3 40.3
Velocity Ratios
MRWA BAL KLB MUN
MRWA 1.76 1.69 1.54 1.48
0.00 0.07 0.04 0.02
BAL 1.69 1.75 1.30 1.36
0.07 0.00 0.10 0.04
KLB 1.54 1.30 1.72 1.39
0.04 0.10 0.00 0.06
MUN 1.48 1.36 1.39 1.69
0.02 0.04 0.06 0.00
Start
Date 1992-02-29
Origin Time 2229 37.70 +- 0.96
Zone 50
Easting 513.87 +- 5.91 Longitude 117.145
Northing 6602.27 +- 4.93 Latitude -30.712
Depth 1.00 +- 13.59 G
Arrival times = 8 S.D. = 0.309 Seismographs = 4
Nearest recorder = 43.6 km Gap = 183.2 deg Accuracy = A
Effects Code = Imax = 0 Fault =
0 km NE ( 29 deg) of CAK
WESTERN AUSTRALIA
184 km NE ( 42 deg) of PERTH
7 km N ( 13 deg) of Cadoux
CAK 0.00 Seismograph details unknown
CAS 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.2
PHASE INFORMATION
DATA USED
BAL i P 44.80 0.10 1.35 44.82 -0.02 43.6 285 1.7 1.7
BAL i S 49.30 0.10 1.21 49.75 -0.45 43.6 285 1.7 1.7
CAK S-P 5.00 5.00 0.75 0.17 4.83 0.7 209 0.0 0.0
CAS S-P 5.00 5.00 0.68 1.24 3.76 10.9 186 0.0 0.0
KLB i P 56.30 0.10 1.25 56.26 0.04 113.7 149 0.7 0.7
KLB i S 68.70 0.10 1.12 69.13 -0.43 113.7 149 0.7 0.7
MRWA i P 68.50 0.10 1.19 68.36 0.14 199.3 326 -42.2 42.2
MRWA e S 91.50 0.10 0.75 91.20 0.30 199.3 326 -40.3 40.3
MUN i P 64.50 0.10 1.21 64.10 0.40 166.2 212 -30.8 30.8
MUN i S 83.80 0.10 1.09 83.62 0.18 166.2 212 0.4 0.4
NWAO w S2 104.20 1.00 0.29 103.89 0.31 245.6 178 -23.9 23.9
Velocity Ratios
BAL KLB MUN MRWA
BAL 1.63 1.69 1.75 1.78
0.04 0.05 0.03 0.02
KLB 1.69 1.67 1.84 1.87
0.05 0.01 0.07 0.05
MUN 1.75 1.84 1.72 1.92
0.03 0.07 0.01 0.15
MRWA 1.78 1.87 1.92 1.75
0.02 0.05 0.15 0.01
Start
Date 1992-03-02
Origin Time 0032 0.92 +- 237.21
Zone 52
Easting 745.55 +-9742.31 Longitude 131.456
Northing 7108.91 +-5532.48 Latitude -26.118
Depth 5.00 +-13350.97 N
Arrival times = 6 S.D. = 2.610 Seismographs = 3
Nearest recorder = 481.2 km Gap = 303.6 deg Accuracy = D
Effects Code = Imax = 0 Fault =
365 km SW (222 deg) of AS10
SOUTH AUSTRALIA
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 3.0
PHASE INFORMATION
DATA USED
COOL e P 141.00 1.00 0.44 144.92 -3.92 1140.1 239 -42.2 42.2
COOL e S 247.00 1.00 0.40 251.81 -4.81 1140.1 239 -40.3 40.3
FORR e P 82.20 0.20 0.65 81.51 0.69 615.6 211 -42.2 42.2
FORR e S 143.00 0.30 0.54 141.40 1.60 615.6 211 -40.3 40.3
WARB e P 65.50 0.20 0.66 65.24 0.26 481.2 268 -42.2 42.2
WARB e S 116.00 1.00 0.43 113.08 2.92 481.2 268 -40.3 40.3
Velocity Ratios
WARB FORR COOL
WARB 1.78 1.62 1.74
0.02 0.12 0.05
FORR 1.62 1.75 1.77
0.12 0.01 0.06
COOL 1.74 1.77 1.76
0.05 0.06 0.02
Start
Date 1992-03-05
Origin Time 0326 40.78 +- 2.49
Zone 50
Easting 524.56 +- 7.84 Longitude 117.260
Northing 6459.13 +- 19.30 Latitude -32.004
Depth 1.00 +- 44.41 C
Arrival times = 6 S.D. = 0.210 Seismographs = 3
Nearest recorder = 65.8 km Gap = 225.3 deg Accuracy = A
Effects Code = Imax = 0 Fault =
12 km W (274 deg) of QUAI
WESTERN AUSTRALIA
133 km E ( 93 deg) of PERTH
34 km NE ( 68 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 1.9
PHASE INFORMATION
DATA USED
BAL e P 67.00 0.20 0.74 66.81 0.19 163.5 341 -30.8 30.8
BAL e S 85.80 0.20 0.66 85.96 -0.16 163.5 341 0.5 0.5
KLB e P 51.50 0.20 0.80 51.51 -0.01 65.8 46 1.1 1.1
KLB e S 59.00 0.20 0.72 58.95 0.05 65.8 46 1.1 1.1
MRWA e S 119.00 2.00 0.39 122.15 -3.15 331.6 338 -40.3 40.3
MUN e P 56.70 0.20 0.77 57.00 -0.30 99.4 271 0.7 0.7
MUN e S 68.50 0.20 0.69 68.24 0.26 99.4 271 0.7 0.7
Velocity Ratios
KLB MUN BAL
KLB 1.70 0.00 1.73
0.05 0.00 0.07
MUN 0.00 1.74 1.68
0.00 0.03 0.11
BAL 1.73 1.68 1.72
0.07 0.11 0.02
Start
Date 1992-03-06
Origin Time 2150 21.18 +- 31.58
Zone 50
Easting 752.88 +- 145.85 Longitude 119.468
Northing 7447.93 +- 117.67 Latitude -23.058
Depth 5.00 +- 157.81 N
Arrival times = 6 S.D. = 0.976 Seismographs = 3
Nearest recorder = 213.6 km Gap = 195.9 deg Accuracy = D
Effects Code = Imax = 0 Fault =
86 km N (342 deg) of MY38
WESTERN AUSTRALIA
319 km S (163 deg) of PORT HEDLAND
41 km NW (328 deg) of Mt Newman Mine
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.1
PHASE INFORMATION
DATA USED
MBL e P 53.00 0.20 0.72 53.12 -0.12 213.6 10 -42.2 42.2
MBL e S 76.00 0.50 0.54 76.97 -0.97 213.6 10 -40.3 40.3
MBL e SG 81.00 0.50 0.54 80.21 0.79 213.6 10 1.4 1.4
MRWA w S 193.00 5.00 0.31 193.16 -0.16 765.4 206 -40.3 40.3
NANU e PG 89.00 1.00 0.49 88.27 0.73 411.3 277 0.7 0.7
NANU w P 89.00 2.00 0.43 77.00 12.00 411.3 277 -42.2 42.2
NANU e SG 133.00 1.00 0.44 134.79 -1.79 411.3 277 0.7 0.7
NANU w S 135.00 1.00 0.45 118.55 16.45 411.3 277 -40.3 40.3
Velocity Ratios
MBL
MBL 1.72
0.03
Start
Date 1992-03-07
Origin Time 0529 20.50 +- 9.15
Zone 51
Easting 567.47 +- 47.18 Longitude 123.681
Northing 6995.80 +- 40.51 Latitude -27.159
Depth 5.00 +- 46.65 N
Arrival times = 7 S.D. = 0.732 Seismographs = 3
Nearest recorder = 314.1 km Gap = 220.3 deg Accuracy = C
Effects Code = Imax = 0 Fault =
309 km W (247 deg) of WBN
WESTERN AUSTRALIA
926 km NE ( 57 deg) of PERTH
118 km NE ( 40 deg) of Cosmo Newberry
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.3
PHASE INFORMATION
DATA USED
COOL w S2 146.00 2.00 0.21 145.70 0.30 480.9 210 -23.9 23.9
FORR e P 98.00 0.50 0.54 97.77 0.23 588.2 134 -42.2 42.2
FORR e S2 172.00 1.00 0.24 172.78 -0.78 588.2 134 -23.9 23.9
WARB e P 64.20 0.10 0.80 64.62 -0.42 314.1 70 -42.2 42.2
WARB e S 98.50 0.30 0.58 97.49 1.01 314.1 70 -40.3 40.3
WARB e S2 103.30 0.50 0.29 103.56 -0.26 314.1 70 -23.9 23.9
WARB e SG 106.50 1.00 0.45 107.28 -0.78 314.1 70 1.0 1.0
Velocity Ratios
WARB
WARB 1.78
0.01
Start
Date 1992-03-07
Origin Time 2056 49.17 +- 10.80
Zone 51
Easting 557.92 +- 20.13 Longitude 123.636
Northing 6102.26 +- 50.96 Latitude -35.221
Depth 5.00 +- 112.05 N
Arrival times = 9 S.D. = 0.951 Seismographs = 7
Nearest recorder = 534.2 km Gap = 233.7 deg Accuracy = C
Effects Code = Imax = 0 Fault =
457 km S (159 deg) of KMBL
808 km SE (119 deg) of PERTH
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.6
PHASE INFORMATION
DATA USED
BAL e S 234.00 1.00 0.41 233.96 0.04 826.3 306 -40.3 40.3
COOL e S 174.00 1.00 0.43 172.50 1.50 534.2 333 -40.3 40.3
FORR e P 133.00 1.00 0.47 132.96 0.04 642.1 41 -42.2 42.2
FORR e S 194.00 1.00 0.42 195.22 -1.22 642.1 41 -40.3 40.3
KLB e S 203.00 1.00 0.42 202.95 0.05 679.0 304 -40.3 40.3
MRWA S 266.40 1.00 0.58 266.63 -0.23 981.4 310 -40.3 40.3
MUN P2 158.00 2.00 0.34 160.95 -2.95 778.2 295 -30.8 30.8
MUN e S 223.50 0.30 0.53 223.83 -0.33 778.2 295 -40.3 40.3
RKG e P 130.00 0.10 0.75 129.09 0.91 610.3 274 -42.2 42.2
RKG e S 187.00 0.30 0.54 188.49 -1.49 610.3 274 -40.3 40.3
Velocity Ratios
RKG FORR
RKG 1.71 0.00
0.01 0.00
FORR 0.00 1.73
0.00 0.03
Start
Date 1992-03-09
Origin Time 2241 41.96 +- 10.90
Zone 52
Easting 620.56 +- 116.69 Longitude 130.196
Northing 7220.04 +- 62.91 Latitude -25.131
Depth 5.00 +- 178.44 N
Arrival times = 6 S.D. = 0.371 Seismographs = 3
Nearest recorder = 375.2 km Gap = 267.3 deg Accuracy = D
Effects Code = Imax = 0 Fault =
375 km E ( 72 deg) of WARB
NORTHERN TERRITORY
87 km W (286 deg) of AYERS ROCK
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.7
PHASE INFORMATION
DATA USED
COOL e S 280.70 1.00 0.40 283.56 -2.86 1096.0 232 -40.3 40.3
FORR e P 128.00 0.20 0.64 128.14 -0.14 661.9 197 -42.2 42.2
FORR e S 192.50 0.50 0.48 192.18 0.32 661.9 197 -40.3 40.3
MBL e P 187.80 0.30 0.56 187.32 0.48 1151.6 290 -42.2 42.2
MBL e S 295.00 1.00 0.40 295.22 -0.22 1151.6 290 -40.3 40.3
WARB e P 93.00 0.50 0.57 93.46 -0.46 375.2 251 -42.2 42.2
WARB e S 132.00 0.50 0.51 131.82 0.18 375.2 251 -40.3 40.3
Velocity Ratios
WARB FORR MBL
WARB 1.76 1.73 1.72
0.03 0.06 0.03
FORR 1.73 1.75 1.71
0.06 0.01 0.04
MBL 1.72 1.71 1.74
0.03 0.04 0.01
Start
Date 1992-03-10
Origin Time 0553 19.01 +- 0.00
Zone 52
Easting 656.23 +- 0.00 Longitude 130.545
Northing 7261.83 +- 0.00 Latitude -24.750
Depth 5.00 +- 0.00 N
Arrival times = 4 S.D. = 2.386 Seismographs = 2
Nearest recorder = 423.2 km Gap = 312.3 deg Accuracy = D
Effects Code = Imax = 0 Fault =
360 km W (250 deg) of ASPA
NORTHERN TERRITORY
83 km NW (324 deg) of AYERS ROCK
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
FORR w P 115.20 2.00 0.41 111.38 3.82 713.1 199 -42.2 42.2
FORR e S 178.70 0.30 0.53 180.02 -1.32 713.1 199 -40.3 40.3
HWK P 90.00 0.10 1.05 114.54 -24.54 739.6 142 -42.2 42.2
WARB e P 74.70 0.30 0.62 76.32 -1.62 423.2 247 -42.2 42.2
WARB e S 120.50 0.50 0.50 118.97 1.53 423.2 247 -40.3 40.3
Velocity Ratios
WARB FORR
WARB 1.82 1.44
0.02 0.11
FORR 1.44 1.66
0.11 0.04
Start
Date 1992-03-15
Origin Time 0631 56.27 +- 5.20
Zone 51
Easting 662.40 +- 8.62 Longitude 124.663
Northing 6818.32 +- 11.67 Latitude -28.752
Depth 5.00 +- 43.95 N
Arrival times = 8 S.D. = 0.339 Seismographs = 6
Nearest recorder = 345.5 km Gap = 108.7 deg Accuracy = C
Effects Code = Imax = 0 Fault =
345 km SW (214 deg) of WARB
WESTERN AUSTRALIA
918 km E ( 70 deg) of PERTH
191 km SE (117 deg) of Cosmo Newberry
COOL -0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.8
PHASE INFORMATION
DATA USED
BAL e S 231.00 1.00 0.41 235.01 -4.01 797.6 253 -40.3 40.3
COOL e P 112.50 0.50 0.56 112.46 0.04 413.9 234 -42.2 42.2
COOL e S 154.50 0.20 0.61 154.28 0.22 413.9 234 -40.3 40.3
COOL SG 167.50 0.50 0.72 170.62 -3.12 413.9 234 0.8 0.8
FORR e P 110.30 0.20 0.68 110.80 -0.50 400.2 125 -42.2 42.2
FORR e S 152.00 0.50 0.51 151.39 0.61 400.2 125 -40.3 40.3
FORR e S2 161.00 0.50 0.28 161.07 -0.07 400.2 125 -23.9 23.9
KLB e P 151.00 0.20 0.64 151.35 -0.35 735.7 242 -42.2 42.2
KLB e S 217.60 0.20 0.57 222.00 -4.40 735.7 242 -40.3 40.3
MBL e P 180.00 0.50 0.51 179.89 0.11 971.9 328 -42.2 42.2
MBL e S 270.70 0.50 0.46 271.69 -0.99 971.9 328 -40.3 40.3
MRWA e P 164.70 0.20 0.63 164.81 -0.11 847.0 264 -42.2 42.2
MRWA e S 242.40 0.20 0.56 245.42 -3.02 847.0 264 -40.3 40.3
MUN e S 250.50 0.30 0.52 254.15 -3.65 888.5 244 -40.3 40.3
WARB e P 104.30 0.20 0.69 104.19 0.11 345.5 34 -42.2 42.2
WARB e S 143.40 0.50 0.51 139.88 3.52 345.5 34 -40.3 40.3
Velocity Ratios
FORR COOL
FORR 1.77 0.00
0.02 0.00
COOL 0.00 1.75
0.00 0.02
Start
Date 1992-03-16
Origin Time 0601 5.55 +- 4.38
Zone 50
Easting 577.66 +- 41.13 Longitude 117.835
Northing 6302.85 +- 37.55 Latitude -33.411
Depth 5.00 +- 111.64 N
Arrival times = 6 S.D. = 0.358 Seismographs = 3
Nearest recorder = 149.4 km Gap = 212.3 deg Accuracy = C
Effects Code = Imax = 0 Fault =
58 km NW (327 deg) of GNOC
WESTERN AUSTRALIA
247 km SE (132 deg) of PERTH
176 km N (359 deg) of ALBANY
14 km SE (136 deg) of Dumbleyung
KLB -0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 2.3
PHASE INFORMATION
DATA USED
BAL e S 88.00 2.00 0.39 85.56 2.44 328.6 340 -40.3 40.3
COOL w PG 73.50 1.00 0.50 74.02 -0.52 419.7 48 0.8 0.8
COOL w SG 123.00 1.00 0.45 121.50 1.50 419.7 48 0.8 0.8
KLB e P2 37.00 0.30 0.40 36.60 0.40 201.8 357 -30.8 30.8
KLB e P 37.00 0.30 0.67 36.07 0.93 201.8 357 -42.2 42.2
KLB S2 59.60 0.30 0.48 60.24 -0.64 201.8 357 -23.9 23.9
KLB e S 59.60 0.30 0.60 58.87 0.73 201.8 357 -40.3 40.3
MUN e P 38.40 0.20 0.72 38.29 0.11 220.2 315 -42.2 42.2
MUN i S2 65.00 0.20 0.51 64.87 0.13 220.2 315 -23.9 23.9
MUN e S 65.00 0.20 0.64 62.73 2.27 220.2 315 -40.3 40.3
RKG e PG 30.20 0.20 0.74 29.94 0.26 149.4 210 2.0 2.0
RKG e P 30.20 0.20 0.74 29.26 0.94 149.4 210 -30.8 30.8
RKG e S 46.50 0.20 0.67 46.85 -0.35 149.4 210 2.0 2.0
NO VELOCITY RATIOS
Start
Date 1992-03-16
Origin Time 2044 49.67 +- 8.31
Zone 50
Easting 219.18 +- 137.54 Longitude 114.272
Northing 7516.48 +- 88.11 Latitude -22.435
Depth 5.00 +- 140.26 N
Arrival times = 8 S.D. = 0.558 Seismographs = 5
Nearest recorder = 592.1 km Gap = 267.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
84 km N (340 deg) of LP03
WESTERN AUSTRALIA
59 km S (166 deg) of Exmouth
28 km SE (136 deg) of Learmonth
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.8
PHASE INFORMATION
DATA USED
BAL w P 169.00 2.00 0.40 169.12 -0.12 937.3 165 -42.2 42.2
BAL e S 259.00 1.00 0.40 257.82 1.18 937.3 165 -40.3 40.3
COOL e P 197.00 1.00 0.44 195.95 1.05 1159.0 145 -42.2 42.2
COOL e S 306.00 1.00 0.40 304.53 1.47 1159.0 145 -40.3 40.3
KLB w S 287.00 2.00 0.35 286.13 0.87 1071.7 162 -40.3 40.3
MBL e P 128.00 0.20 0.65 127.37 0.63 592.1 77 -42.2 42.2
MBL e S 184.70 0.20 0.59 185.14 -0.44 592.1 77 -40.3 40.3
MRWA e P 148.40 1.00 0.46 149.03 -0.63 771.1 167 -42.2 42.2
MRWA e S 220.00 0.50 0.47 222.85 -2.85 771.1 167 -40.3 40.3
MUN e P 185.50 0.30 0.56 185.74 -0.24 1074.7 170 -42.2 42.2
MUN e S 286.50 0.50 0.46 286.76 -0.26 1074.7 170 -40.3 40.3
WARB e P 216.00 0.20 0.61 216.07 -0.07 1325.4 110 -42.2 42.2
WARB e S 342.50 0.50 0.46 339.57 2.93 1325.4 110 -40.3 40.3
Velocity Ratios
MBL BAL MUN
MBL 1.72 1.81 1.77
0.01 0.13 0.03
BAL 1.81 1.75 0.00
0.13 0.04 0.00
MUN 1.77 0.00 1.74
0.03 0.00 0.01
Start
Date 1992-03-21
Origin Time 2005 4.00 +- 24.12
Zone 51
Easting 652.45 +- 81.45 Longitude 124.541
Northing 6974.31 +- 68.80 Latitude -27.346
Depth 5.00 +- 159.18 N
Arrival times = 6 S.D. = 1.609 Seismographs = 3
Nearest recorder = 245.6 km Gap = 199.5 deg Accuracy = D
Effects Code = Imax = 0 Fault =
242 km SW (236 deg) of WBN
WESTERN AUSTRALIA
984 km NE ( 61 deg) of PERTH
175 km NE ( 67 deg) of Cosmo Newberry
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.5
PHASE INFORMATION
DATA USED
COOL w S 125.00 2.00 0.38 122.79 2.21 512.6 219 -40.3 40.3
COOL w SG 143.00 3.00 0.35 145.61 -2.61 512.6 219 0.6 0.6
FORR w S 125.00 2.00 0.38 123.22 1.78 514.6 139 -40.3 40.3
FORR w SG 145.00 2.00 0.38 146.17 -1.17 514.6 139 0.6 0.6
WARB e P 40.00 1.00 0.51 39.84 0.16 245.6 58 -42.2 42.2
WARB e S 66.00 0.50 0.53 66.57 -0.57 245.6 58 -40.3 40.3
Velocity Ratios
WARB
WARB 1.72
0.06
Start
Date 1992-03-28
Origin Time 1339 13.75 +- 0.00
Zone 50
Easting 680.84 +- 0.00 Longitude 118.923
Northing 6413.26 +- 0.00 Latitude -32.403
Depth 5.00 +- 0.00 N
Arrival times = 4 S.D. = 1.593 Seismographs = 3
Nearest recorder = 142.0 km Gap = 227.9 deg Accuracy = C
Effects Code = Imax = 0 Fault =
78 km E ( 67 deg) of KULI
WESTERN AUSTRALIA
294 km E (101 deg) of PERTH
7 km NE ( 44 deg) of Hyden
KLB -0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 1.7
PHASE INFORMATION
DATA USED
BAL S2 91.00 1.00 0.29 90.64 0.36 289.7 312 -23.9 23.9
COOL e S 82.80 1.00 0.46 81.47 1.33 270.0 51 -40.3 40.3
KLB S-P 17.00 0.20 1.06 16.58 0.42 142.0 309 0.0 0.0
KLB e P 35.40 0.20 0.75 36.42 -1.02 142.0 309 -30.8 30.8
KLB e S 52.40 0.20 0.67 53.00 -0.60 142.0 309 2.1 2.1
MUN e S 82.00 1.00 0.46 79.36 2.64 260.2 279 -40.3 40.3
Velocity Ratios
KLB
KLB 1.79
0.03
Start
Date 1992-03-31
Origin Time 1722 13.90 +- 6.79
Zone 50
Easting 421.46 +- 24.13 Longitude 116.218
Northing 7176.78 +- 12.08 Latitude -25.524
Depth 5.00 +- 55.00 N
Arrival times = 12 S.D. = 0.965 Seismographs = 8
Nearest recorder = 337.9 km Gap = 164.4 deg Accuracy = C
Effects Code = Imax = 0 Fault =
155 km SE (113 deg) of LP02
WESTERN AUSTRALIA
713 km N ( 3 deg) of PERTH
267 km E (106 deg) of CARNARVON
46 km W (276 deg) of Erong Springs
MRWA -0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.8
PHASE INFORMATION
DATA USED
BAL e P 89.00 0.30 0.60 88.35 0.65 565.1 175 -42.2 42.2
BAL e S 142.00 1.00 0.43 143.70 -1.70 565.1 175 -40.3 40.3
COOL e P 112.00 1.00 0.46 112.65 -0.65 765.8 142 -42.2 42.2
KLB e P 103.20 0.20 0.64 103.32 -0.12 688.9 167 -42.2 42.2
KLB e S 168.20 0.30 0.53 169.77 -1.57 688.9 167 -40.3 40.3
MBL e P 96.00 1.00 0.47 93.57 2.43 608.3 37 -42.2 42.2
MBL e S 153.00 2.00 0.37 152.79 0.21 608.3 37 -40.3 40.3
MRWA i+P 69.40 0.10 1.11 69.57 -0.17 409.8 183 -42.2 42.2
MRWA e S 111.00 0.50 0.51 111.01 -0.01 409.8 183 -40.3 40.3
MUN e P 107.20 0.20 0.64 106.48 0.72 715.1 180 -42.2 42.2
MUN e S 173.50 0.30 0.53 175.28 -1.78 715.1 180 -40.3 40.3
NANU e P 59.80 0.50 0.57 60.85 -1.05 337.9 347 -42.2 42.2
NANU e S 95.00 1.00 0.45 95.83 -0.83 337.9 347 -40.3 40.3
WARB e P 145.00 1.00 0.44 147.07 -2.07 1050.5 96 -42.2 42.2
WARB e S 246.00 1.00 0.40 245.93 0.07 1050.5 96 -40.3 40.3
Velocity Ratios
NANU MRWA MBL WARB
NANU 1.77 0.00 1.60 1.77
0.04 0.00 0.16 0.06
MRWA 0.00 1.75 1.58 1.79
0.00 0.01 0.17 0.05
MBL 1.60 1.58 1.69 1.90
0.16 0.17 0.05 0.14
WARB 1.77 1.79 1.90 1.77
0.06 0.05 0.14 0.02