Data Report
Bulletin / 97-02
Contributed by CUPWA
Date 1997-02-01
Origin Time 0214 7.02 +- 5.66
Zone 50
Easting 413.74 +- 51.42 Longitude 116.088
Northing 6477.29 +- 22.76 Latitude -31.837
Depth 5.00 +- 63.93 N
Arrival times = 6 S.D. = 0.293 Seismographs = 4
Nearest recorder = 19.4 km Gap = 239.1 deg Accuracy = D
Effects Code = Imax = 0 Fault =
12 km SW (217 deg) of PIG4
WESTERN AUSTRALIA
26 km NE ( 61 deg) of PERTH
10 km NW (312 deg) of Mundaring
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.2
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MUN i P 10.20 0.10 1.43 10.29 -0.09 19.4 144 15.2 15.2
MUN i S 12.50 0.10 1.29 12.56 -0.06 19.4 144 15.2 15.2
BAL e P 31.00 0.50 0.62 30.60 0.40 148.5 23 -30.8 30.8
BAL e S 47.90 0.50 0.56 48.07 -0.17 148.5 23 2.0 2.0
KLB e S 51.00 2.00 0.42 51.33 -0.33 160.7 80 -23.9 23.9
NWAO e SG 52.50 0.50 0.55 51.75 0.75 161.8 138 1.9 1.9
6 times used, S = 0.293
Deferred Data
BAL e SN 50.70 0.50 0.37 49.12 1.58 148.5 23 -40.3 40.3
NWAO e S 51.90 0.50 0.55 51.61 0.29 161.8 138 -23.9 23.9
Velocity Ratios
MUN BAL
MUN 1.72 1.70
0.09 0.08
BAL 1.70 1.70
0.08 0.06
Date 1997-02-01
Origin Time 1435 34.00 +- 0.97
Zone 50
Easting 492.25 +- 5.18 Longitude 116.919
Northing 6627.78 +- 4.19 Latitude -30.482
Depth 5.00 +- 8.48 N
Arrival times = 9 S.D. = 0.312 Seismographs = 5
Nearest recorder = 24.6 km Gap = 179.8 deg Accuracy = B
Effects Code = Imax = 0 Fault =
4 km SW (214 deg) of BK2A
WESTERN AUSTRALIA
192 km NE ( 32 deg) of PERTH
19 km NE ( 48 deg) of Ballidu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BAL i-P 37.90 0.10 1.41 38.11 -0.21 24.6 235 12.1 12.1
BAL i S 41.00 0.10 1.27 40.95 0.05 24.6 235 12.1 12.1
KLB e P 58.00 0.50 0.62 57.35 0.65 146.8 147 -30.8 30.8
KLB e S 74.00 0.30 0.62 74.58 -0.58 146.8 147 2.1 2.1
MRWA e P 60.00 0.10 0.84 60.04 -0.04 166.1 327 -30.8 30.8
MRWA e S 79.70 0.10 0.76 79.66 0.04 166.1 327 -23.9 23.9
MUN e P 62.00 0.20 0.73 61.77 0.23 179.1 201 -42.2 42.2
MUN e S 83.00 0.20 0.66 82.53 0.47 179.1 201 -40.3 40.3
NWAO e SMS 107.20 0.20 0.35 107.32 -0.12 272.6 173 -25.7 25.7
9 times used, S = 0.312
Velocity Ratios
BAL KLB MRWA MUN
BAL 1.79 1.64 1.75 1.74
0.07 0.07 0.03 0.03
KLB 1.64 1.67 0.00 0.00
0.07 0.05 0.00 0.00
MRWA 1.75 0.00 1.76 0.00
0.03 0.00 0.01 0.00
MUN 1.74 0.00 0.00 1.75
0.03 0.00 0.00 0.02
Date 1997-02-04
Origin Time 1531 34.87 +- 0.59
Zone 50
Easting 562.61 +- 4.15 Longitude 117.659
Northing 6516.67 +- 4.72 Latitude -31.483
Depth 5.00 +- 10.52 N
Arrival times = 8 S.D. = 0.246 Seismographs = 5
Nearest recorder = 15.4 km Gap = 174.5 deg Accuracy = B
Effects Code = Imax = 0 Fault =
1 km E (109 deg) of KBS
WESTERN AUSTRALIA
179 km E ( 74 deg) of PERTH
17 km N (340 deg) of Kellerberrin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.9
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB i-P 37.50 0.10 1.46 37.52 -0.02 15.4 141 19.0 19.0
KLB i S 39.30 0.10 1.31 39.37 -0.07 15.4 141 19.0 19.0
BAL i P 56.70 0.10 1.23 56.28 0.42 133.0 316 -30.8 30.8
BAL i S 71.30 0.10 1.11 71.64 -0.34 133.0 316 2.3 2.3
MUN e P 58.30 0.10 0.85 58.38 -0.08 148.0 247 -30.8 30.8
MUN i S 75.80 0.10 1.10 75.78 0.02 148.0 247 2.0 2.0
NWAO e S 80.30 0.30 0.61 80.26 0.04 165.0 193 -23.9 23.9
MRWA e SMS 114.20 0.20 0.35 114.43 -0.23 297.6 327 -25.4 25.4
8 times used, S = 0.246
Deferred Data
NWAO e P 61.30 1.00 0.53 60.76 0.54 165.0 193 -30.8 30.8
MRWA e S 112.20 0.20 0.63 108.35 3.85 297.6 327 -40.3 40.3
Velocity Ratios
KLB BAL MUN
KLB 1.68 1.67 1.75
0.11 0.03 0.03
BAL 1.67 1.67 0.00
0.03 0.01 0.00
MUN 1.75 0.00 1.75
0.03 0.00 0.01
Date 1997-02-05
Origin Time 1455 57.72 +- 1.63
Zone 51
Easting 526.22 +- 5.04 Longitude 123.271
Northing 6697.70 +- 8.81 Latitude -29.851
Depth 5.00 +- 12.38 N
Arrival times = 17 S.D. = 0.661 Seismographs = 9
Nearest recorder = 204.3 km Gap = 126.0 deg Accuracy = B
Effects Code = Imax = 0 Fault =
182 km NE ( 45 deg) of KLDM
WESTERN AUSTRALIA
746 km E ( 74 deg) of PERTH
200 km NE ( 61 deg) of KALGOORLIE
160 km SE (148 deg) of Laverton
Record Dur Sync Unc Resp Seismometer Recorder Pol
ASPA 0.00 Seismograph details unknown
KLB 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.3
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
WOOL e P 89.20 0.20 0.72 88.54 0.66 204.3 227 -42.2 42.2
FORT e P 120.50 0.10 0.76 120.96 -0.46 472.5 104 -42.2 42.2
FORT e S 168.20 0.20 0.60 168.01 0.19 472.5 104 -40.3 40.3
WARB e P 128.50 0.30 0.61 127.28 1.22 524.5 39 -42.2 42.2
WARB e S 179.00 0.50 0.49 179.01 -0.01 524.5 39 -40.3 40.3
KLB e P 131.00 0.10 0.75 131.83 -0.83 562.3 248 -42.2 42.2
BAL i-P 140.30 0.10 1.06 140.99 -0.69 638.0 260 -42.2 42.2
BAL e PG 161.50 0.20 0.65 161.80 -0.30 638.0 260 0.5 0.5
BAL e S 203.30 0.20 0.58 202.88 0.42 638.0 260 -40.3 40.3
NWAO e S 209.40 0.30 0.53 209.23 0.17 668.2 237 -40.3 40.3
NWAO e SG 242.80 0.30 0.53 242.32 0.48 668.2 237 0.5 0.5
MRWA e P 149.10 0.10 0.73 149.64 -0.54 709.6 273 -42.2 42.2
MRWA e S 219.00 0.20 0.58 217.94 1.06 709.6 273 -40.3 40.3
MUN e P 150.00 2.00 0.40 150.39 -0.39 715.9 248 -42.2 42.2
MUN e S 220.00 0.20 0.57 219.25 0.75 715.9 248 -40.3 40.3
RKG e P 159.30 0.30 0.58 159.25 0.05 789.1 226 -42.2 42.2
RKG e SG 276.00 0.30 0.52 275.71 0.29 789.1 226 0.4 0.4
17 times used, S = 0.661
Deferred Data
WOOL e S 114.30 0.30 0.60 111.57 2.73 204.3 227 -40.3 40.3
KLB e PG 150.80 0.20 0.65 149.45 1.35 562.3 248 0.5 0.5
KLB e SG 216.10 0.20 0.59 213.05 3.05 562.3 248 0.5 0.5
BAL e SG 235.40 0.20 0.58 233.98 1.42 638.0 260 0.5 0.5
ASPA e P 219.40 0.30 0.56 216.69 2.71 1263.9 59 -42.2 42.2
ASPA e S 332.90 0.50 0.46 334.68 -1.78 1263.9 59 -40.3 40.3
WB2 e P 251.50 0.30 0.56 254.25 -2.75 1574.6 47 -42.2 42.2
WB2 e S 401.00 0.50 0.46 400.06 0.94 1574.6 47 -40.3 40.3
Velocity Ratios
FORT WARB BAL MRWA MUN
FORT 1.76 1.35 1.77 1.78 1.76
0.01 0.16 0.04 0.03 0.15
WARB 1.35 1.71 2.06 1.94 0.00
0.16 0.01 0.13 0.07 0.00
BAL 1.77 2.06 1.76 1.78 0.00
0.04 0.13 0.00 0.09 0.00
MRWA 1.78 1.94 1.78 1.76 0.00
0.03 0.07 0.09 0.00 0.00
MUN 1.76 0.00 0.00 0.00 1.76
0.15 0.00 0.00 0.00 0.04
Date 1997-02-06
Origin Time 1356 17.21 +- 1.72
Zone 51
Easting 588.26 +- 5.99 Longitude 123.916
Northing 6666.65 +- 10.72 Latitude -30.128
Depth 5.00 +- 15.81 N
Arrival times = 19 S.D. = 0.759 Seismographs = 11
Nearest recorder = 238.8 km Gap = 129.2 deg Accuracy = C
Effects Code = Imax = 0 Fault =
215 km NE ( 63 deg) of KLDM
WESTERN AUSTRALIA
796 km E ( 77 deg) of PERTH
Record Dur Sync Unc Resp Seismometer Recorder Pol
ASPA 0.00 Seismograph details unknown
WOOL 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.3
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
WOOL i+P 53.00 0.10 1.17 52.20 0.80 238.8 243 -42.2 42.2
WOOL i PG 55.80 0.10 1.17 56.17 -0.37 238.8 243 1.3 1.3
WOOL e SG 83.70 0.50 0.53 83.18 0.52 238.8 243 1.3 1.3
FORT e P 71.90 0.20 0.68 72.29 -0.39 405.0 101 -42.2 42.2
FORT e S 113.90 0.50 0.51 113.29 0.61 405.0 101 -40.3 40.3
WARB e P 85.80 0.20 0.66 85.35 0.45 512.7 32 -42.2 42.2
WARB e S 135.80 1.00 0.43 136.02 -0.22 512.7 32 -40.3 40.3
KLB e P 96.30 0.50 0.54 97.21 -0.91 610.9 252 -42.2 42.2
KLB e PG 116.00 0.50 0.54 116.88 -0.88 610.9 252 0.5 0.5
MEEK e P 102.50 0.20 0.65 101.69 0.81 647.8 305 -42.2 42.2
MEEK e SG 196.10 1.00 0.42 196.18 -0.08 647.8 305 0.5 0.5
BAL e P 107.00 0.50 0.53 107.44 -0.44 695.6 263 -42.2 42.2
BAL e SG 210.50 0.30 0.53 209.37 1.13 695.6 263 0.4 0.4
NWAO e SG 212.00 0.50 0.48 212.45 -0.45 706.7 242 0.4 0.4
MUN e P 114.70 0.20 0.63 115.76 -1.06 764.4 252 -42.2 42.2
MUN e PG 141.40 0.30 0.58 141.92 -0.52 764.4 252 0.4 0.4
MRWA e P 116.00 0.30 0.58 116.94 -0.94 774.1 275 -42.2 42.2
RKG e P 123.00 0.30 0.58 121.97 1.03 815.8 230 -42.2 42.2
ASPA e P 171.00 0.30 0.56 171.79 -0.79 1227.5 56 -42.2 42.2
19 times used, S = 0.759
Deferred Data
WOOL e S 80.00 1.00 0.46 78.32 1.68 238.8 243 -40.3 40.3
WARB e P2 88.50 0.30 0.37 91.82 -3.32 512.7 32 -30.8 30.8
WARB e PG 97.90 1.00 0.48 100.86 -2.96 512.7 32 0.6 0.6
WARB e SG 156.20 0.50 0.49 158.86 -2.66 512.7 32 0.6 0.6
KLB e S 158.00 0.50 0.49 156.67 1.33 610.9 252 -40.3 40.3
KLB e S2 182.30 0.50 0.27 175.22 7.08 610.9 252 -23.9 23.9
KLB e SG 188.00 0.50 0.49 185.99 2.01 610.9 252 0.5 0.5
MEEK e P2 106.50 0.30 0.36 110.75 -4.25 647.8 305 -30.8 30.8
MEEK e S 166.40 0.50 0.48 164.48 1.92 647.8 305 -40.3 40.3
BAL e PG 129.00 1.00 0.46 130.69 -1.69 695.6 263 0.4 0.4
BAL e S 176.70 0.30 0.53 174.49 2.21 695.6 263 -40.3 40.3
NWAO e P 112.50 1.00 0.46 108.79 3.71 706.7 242 -42.2 42.2
NWAO e S 179.00 1.00 0.42 176.83 2.17 706.7 242 -40.3 40.3
MUN e S 190.40 0.40 0.50 188.97 1.43 764.4 252 -40.3 40.3
MUN e SG 233.00 1.00 0.41 228.38 4.62 764.4 252 0.4 0.4
MRWA e S 192.50 0.50 0.47 191.02 1.48 774.1 275 -40.3 40.3
RKG e S 198.00 0.30 0.52 199.79 -1.79 815.8 230 -40.3 40.3
Velocity Ratios
FORT WARB
FORT 1.77 1.58
0.02 0.16
WARB 1.58 1.73
0.16 0.02
Date 1997-02-08
Origin Time 1240 19.77 +- 0.00
Zone 50
Easting 548.80 +- 0.00 Longitude 117.487
Northing 7138.65 +- 0.00 Latitude -25.870
Depth 5.00 +- 0.00 N
Arrival times = 4 S.D. = 0.637 Seismographs = 3
Nearest recorder = 141.1 km Gap = 286.3 deg Accuracy = D
Effects Code = Imax = 0 Fault =
141 km NW (306 deg) of MEEK
WESTERN AUSTRALIA
693 km N ( 14 deg) of PERTH
128 km NW (308 deg) of MEEKATHARRA
88 km E (112 deg) of Erong Springs
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 -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MEEK e P 42.20 0.10 0.86 42.34 -0.14 141.1 127 -30.8 30.8
MEEK e S 58.90 0.10 0.77 58.78 0.12 141.1 127 2.2 2.2
MRWA e S 115.10 0.20 0.61 114.62 0.48 399.0 201 -40.3 40.3
MUN e S2 195.00 0.50 0.27 197.27 -2.27 688.2 190 -23.9 23.9
4 times used, S = 0.637
Deferred Data
MUN e S 195.00 0.50 0.48 175.48 19.52 688.2 190 -40.3 40.3
Velocity Ratios
MEEK
MEEK 1.74
0.01
Date 1997-02-11
Origin Time 1947 19.28 +- 14.93
Zone 52
Easting 623.43 +- 28.69 Longitude 130.232
Northing 7141.54 +- 45.39 Latitude -25.839
Depth 5.00 +- 108.83 N
Arrival times = 6 S.D. = 0.656 Seismographs = 3
Nearest recorder = 361.2 km Gap = 154.8 deg Accuracy = C
Effects Code = Imax = 0 Fault =
361 km E ( 84 deg) of WARB
NORTHERN TERRITORY
97 km SW (236 deg) of AYERS ROCK
Record Dur Sync Unc Resp Seismometer Recorder Pol
ASPA 0.00 Seismograph details unknown
WARB 0.00 Seismograph details unknown
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
WARB e P 68.30 0.20 0.68 69.09 -0.79 361.2 263 -42.2 42.2
WARB e S 107.00 0.30 0.57 106.18 0.82 361.2 263 -40.3 40.3
ASPA e P 79.40 0.20 0.67 78.84 0.56 441.7 57 -42.2 42.2
ASPA e S 122.80 0.30 0.56 123.15 -0.35 441.7 57 -40.3 40.3
FORT e P 96.20 0.20 0.65 96.64 -0.44 589.3 200 -42.2 42.2
FORT e S 153.80 0.30 0.54 154.15 -0.35 589.3 200 -40.3 40.3
6 times used, S = 0.656
Velocity Ratios
WARB ASPA FORT
WARB 1.79 1.42 1.68
0.01 0.11 0.05
ASPA 1.42 1.72 1.85
0.11 0.01 0.08
FORT 1.68 1.85 1.75
0.05 0.08 0.01
Date 1997-02-13
Origin Time 1153 4.36 +- 7.15
Zone 50
Easting 526.19 +- 51.71 Longitude 117.275
Northing 6548.72 +- 35.94 Latitude -31.195
Depth 5.00 +- 167.83 N
Arrival times = 5 S.D. = 0.182 Seismographs = 3
Nearest recorder = 63.7 km Gap = 173.7 deg Accuracy = D
Effects Code = Imax = 0 Fault =
27 km W (279 deg) of WYAL
WESTERN AUSTRALIA
159 km NE ( 59 deg) of PERTH
23 km E ( 89 deg) of Dowerin
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
KLB e S 22.00 0.30 0.66 22.02 -0.02 63.7 133 4.8 4.8
BAL e P 18.00 0.30 0.72 18.23 -0.23 84.9 320 3.6 3.6
BAL e S 28.00 0.30 0.65 27.85 0.15 84.9 320 3.6 3.6
MUN e P 26.00 0.10 0.86 25.81 0.19 133.3 228 -30.8 30.8
MUN e S 41.10 0.10 0.77 41.22 -0.12 133.3 228 2.3 2.3
5 times used, S = 0.182
Deferred Data
MRWA e S 72.00 0.30 0.59 68.11 3.89 251.3 330 -40.3 40.3
Velocity Ratios
BAL MUN
BAL 1.73 1.64
0.06 0.14
MUN 1.64 1.70
0.14 0.01
Date 1997-02-17
Origin Time 2214 40.10 +- 3.39
Zone 50
Easting 610.86 +- 14.19 Longitude 118.158
Northing 6599.63 +- 10.69 Latitude -30.731
Depth 5.00 +- 17.60 N
Arrival times = 9 S.D. = 0.494 Seismographs = 5
Nearest recorder = 102.7 km Gap = 251.1 deg Accuracy = C
Effects Code = Imax = 0 Fault =
3 km W (272 deg) of WATG
WESTERN AUSTRALIA
258 km NE ( 59 deg) of PERTH
21 km N (349 deg) of Mukinbudin
Record Dur Sync Unc Resp Seismometer Recorder Pol
KLB 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB e P 56.40 0.10 0.88 56.87 -0.47 102.7 201 3.0 3.0
KLB e S 69.00 0.10 0.79 68.50 0.50 102.7 201 3.0 3.0
BAL e P 62.20 0.10 0.86 62.45 -0.25 139.7 275 -30.8 30.8
BAL e S 78.50 0.10 0.77 78.72 -0.22 139.7 275 2.2 2.2
MUN e SMS 103.00 0.50 0.30 103.18 -0.18 231.3 232 -26.6 26.6
NWAO e SMS 110.50 0.50 0.29 109.95 0.55 258.6 199 -26.0 26.0
MRWA e PMP 81.10 0.20 0.42 80.76 0.34 267.6 308 -32.1 32.1
MRWA e S 108.00 0.20 0.63 107.27 0.73 267.6 308 -40.3 40.3
MRWA e SMS 112.00 0.30 0.32 112.19 -0.19 267.6 308 -25.8 25.8
9 times used, S = 0.494
Deferred Data
MUN e S 98.00 0.50 0.53 99.62 -1.62 231.3 232 -40.3 40.3
NWAO e S 106.40 0.30 0.59 105.38 1.02 258.6 199 -40.3 40.3
MRWA e P 81.10 0.20 0.70 78.58 2.52 267.6 308 -42.2 42.2
Velocity Ratios
KLB BAL
KLB 1.77 1.64
0.02 0.09
BAL 1.64 1.74
0.09 0.01
Date 1997-02-18
Origin Time 0311 34.61 +- 0.74
Zone 50
Easting 517.44 +- 4.80 Longitude 117.185
Northing 6443.80 +- 5.21 Latitude -32.142
Depth 5.00 +- 15.37 N
Arrival times = 7 S.D. = 0.221 Seismographs = 4
Nearest recorder = 81.7 km Gap = 135.3 deg Accuracy = B
Effects Code = Imax = 0 Fault =
17 km SW (207 deg) of QUA
WESTERN AUSTRALIA
128 km E (100 deg) of PERTH
24 km E ( 96 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 1.8
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB e P 48.00 0.20 0.78 47.97 0.03 81.7 41 3.7 3.7
KLB e S 57.00 0.20 0.70 57.24 -0.24 81.7 41 3.7 3.7
NWAO e P 48.60 0.20 0.78 48.85 -0.25 87.1 177 3.5 3.5
NWAO e S 59.00 0.20 0.70 58.72 0.28 87.1 177 3.5 3.5
MUN i+P 50.00 0.10 1.27 49.97 0.03 94.0 280 3.2 3.2
MUN i S 60.50 0.10 1.14 60.61 -0.11 94.0 280 3.2 3.2
BAL e S 83.00 0.20 0.66 82.53 0.47 176.1 344 -40.3 40.3
7 times used, S = 0.221
Deferred Data
BAL e P 63.00 0.30 0.67 62.03 0.97 176.1 344 -42.2 42.2
Velocity Ratios
KLB NWAO MUN
KLB 1.67 0.00 0.00
0.04 0.00 0.00
NWAO 0.00 1.74 0.00
0.00 0.04 0.00
MUN 0.00 0.00 1.68
0.00 0.00 0.02
Date 1997-02-18
Origin Time 2009 41.24 +- 3.52
Zone 51
Easting 438.55 +- 9.01 Longitude 122.345
Northing 6387.94 +- 35.15 Latitude -32.644
Depth 5.00 +- 31.12 N
Arrival times = 8 S.D. = 0.387 Seismographs = 6
Nearest recorder = 185.3 km Gap = 213.2 deg Accuracy = C
Effects Code = Imax = 0 Fault =
147 km S (163 deg) of KMBL
WESTERN AUSTRALIA
616 km E ( 99 deg) of PERTH
72 km SE (133 deg) of NORSEMAN
Record Dur Sync Unc Resp Seismometer Recorder Pol
WOOL 0.00 Seismograph details unknown
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
WOOL e P 70.00 0.30 0.67 69.76 0.24 185.3 340 -42.2 42.2
WOOL e S 90.90 0.50 0.55 91.08 -0.18 185.3 340 -40.3 40.3
KLB e SG 165.00 1.00 0.44 165.12 -0.12 448.4 283 0.7 0.7
FORT e P 117.20 0.20 0.65 117.37 -0.17 579.1 70 -42.2 42.2
FORT e S 173.90 0.20 0.59 173.97 -0.07 579.1 70 -40.3 40.3
MRWA e S 203.00 0.30 0.53 202.99 0.01 716.9 300 -40.3 40.3
MEEK e S 211.20 0.50 0.48 211.63 -0.43 757.7 330 -40.3 40.3
WARB e P 148.40 0.30 0.58 147.56 0.84 828.6 31 -42.2 42.2
8 times used, S = 0.387
Deferred Data
BAL e SG 199.00 1.00 0.43 201.82 -2.82 581.3 291 0.5 0.5
WARB e S 228.40 0.50 0.47 226.54 1.86 828.6 31 -40.3 40.3
Velocity Ratios
WOOL FORT
WOOL 1.73 1.76
0.04 0.03
FORT 1.76 1.75
0.03 0.01
Date 1997-02-20
Origin Time 1445 43.63 +- 4.99
Zone 50
Easting 913.62 +- 21.87 Longitude 120.863
Northing 8232.63 +- 40.00 Latitude -15.951
Depth 5.00 +- 75.62 N
Arrival times = 8 S.D. = 0.370 Seismographs = 5
Nearest recorder = 854.6 km Gap = 251.7 deg Accuracy = C
Effects Code = Imax = 0 Fault =
561 km NW (294 deg) of FITZ
WESTERN AUSTRALIA
267 km NW (327 deg) of BROOME
Record Dur Sync Unc Resp Seismometer Recorder Pol
WARB 0.00 Seismograph details unknown
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
KNA i-P 152.80 0.10 1.03 153.07 -0.27 854.6 89 -42.2 42.2
MEEK e P 195.40 0.50 0.51 195.70 -0.30 1206.8 190 -42.2 42.2
MEEK e S 309.10 0.30 0.51 308.57 0.53 1206.8 190 -40.3 40.3
WARB e P 205.60 0.30 0.56 205.66 -0.06 1289.3 153 -42.2 42.2
WARB e S 325.60 0.50 0.46 325.92 -0.32 1289.3 153 -40.3 40.3
MRWA e P 237.30 0.50 0.51 237.39 -0.09 1551.8 197 -42.2 42.2
MRWA e S 381.50 0.50 0.46 381.16 0.34 1551.8 197 -40.3 40.3
BAL e P 252.00 1.00 0.44 252.64 -0.64 1677.9 193 -42.2 42.2
8 times used, S = 0.370
Deferred Data
GIRL w P 174.00 2.00 0.40 172.66 1.34 1016.7 222 -42.2 42.2
BAL e S 405.00 2.00 0.35 407.70 -2.70 1677.9 193 -40.3 40.3
MUN w P 270.50 2.00 0.39 271.88 -1.38 1837.1 193 -42.2 42.2
MUN e S 443.50 2.00 0.35 441.21 2.29 1837.1 193 -40.3 40.3
Velocity Ratios
MEEK WARB MRWA
MEEK 1.75 0.00 1.73
0.01 0.00 0.06
WARB 0.00 1.74 1.76
0.00 0.01 0.08
MRWA 1.73 1.76 1.74
0.06 0.08 0.01
Date 1997-02-21
Origin Time 0826 8.63 +- 4.49
Zone 51
Easting 721.75 +- 6.97 Longitude 125.243
Northing 6966.02 +- 8.37 Latitude -27.411
Depth 5.00 +- 32.73 N
Arrival times = 8 S.D. = 0.346 Seismographs = 4
Nearest recorder = 194.7 km Gap = 129.9 deg Accuracy = C
Effects Code = Imax = 0 Fault =
193 km SW (223 deg) of WBN
WESTERN AUSTRALIA
195 km SW (223 deg) of WARBURTON
Record Dur Sync Unc Resp Seismometer Recorder Pol
WARB 0.00 Seismograph details unknown
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
WARB e P 38.30 0.10 0.83 38.31 -0.01 194.7 45 -42.2 42.2
WARB e S 60.30 0.30 0.60 60.49 -0.19 194.7 45 -40.3 40.3
WARB e S2 61.80 0.30 0.33 61.55 0.25 194.7 45 -23.9 23.9
FORT e P 70.40 0.20 0.67 71.01 -0.61 465.4 144 -42.2 42.2
FORT e S 117.20 0.30 0.55 117.43 -0.23 465.4 144 -40.3 40.3
WOOL e S 132.00 0.50 0.49 131.78 0.22 533.5 219 -40.3 40.3
MEEK e P 95.20 0.20 0.64 94.99 0.21 663.4 275 -42.2 42.2
MEEK e S 158.70 1.00 0.42 159.17 -0.47 663.4 275 -40.3 40.3
8 times used, S = 0.346
Velocity Ratios
WARB FORT MEEK
WARB 1.74 1.77 1.73
0.02 0.04 0.03
FORT 1.77 1.76 1.67
0.04 0.01 0.08
MEEK 1.73 1.67 1.73
0.03 0.08 0.02
Date 1997-02-21
Origin Time 0932 14.72 +- 2.51
Zone 50
Easting 268.89 +- 36.14 Longitude 114.728
Northing 7339.97 +- 12.12 Latitude -24.035
Depth 5.00 +- 24.88 N
Arrival times = 8 S.D. = 0.275 Seismographs = 4
Nearest recorder = 162.3 km Gap = 173.9 deg Accuracy = C
Effects Code = Imax = 0 Fault =
99 km S (169 deg) of LP03
WESTERN AUSTRALIA
884 km N (353 deg) of PERTH
142 km NE ( 49 deg) of CARNARVON
Record Dur Sync Unc Resp Seismometer Recorder Pol
GIRL 0.00 Seismograph details unknown
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
GIRL e P 40.00 1.00 0.53 40.23 -0.23 162.3 341 -30.8 30.8
GIRL e PG 41.40 0.50 0.61 41.22 0.18 162.3 341 1.8 1.8
GIRL e S 59.30 0.50 0.55 59.42 -0.12 162.3 341 -23.9 23.9
MEEK e P 80.10 0.50 0.55 79.61 0.49 485.8 127 -42.2 42.2
MEEK e S 127.50 0.50 0.50 127.88 -0.38 485.8 127 -40.3 40.3
MRWA e P 92.00 1.00 0.47 91.93 0.07 587.9 167 -42.2 42.2
MRWA e S 149.20 0.20 0.59 149.33 -0.13 587.9 167 -40.3 40.3
BAL e SG 223.00 1.00 0.41 222.98 0.02 753.9 165 0.4 0.4
8 times used, S = 0.275
Deferred Data
BAL e S 191.00 2.00 0.36 184.27 6.73 753.9 165 -40.3 40.3
Velocity Ratios
GIRL MEEK MRWA
GIRL 1.76 1.70 1.73
0.09 0.09 0.08
MEEK 1.70 1.73 0.00
0.09 0.02 0.00
MRWA 1.73 0.00 1.74
0.08 0.00 0.03