Data Report
Bulletin / 1994-03
Contributed by CUPWA
Date 1994-03-01
Origin Time 2325 38.96 +- 0.27
Zone 50
Easting 505.26 +- 1.68 Longitude 117.056
Northing 6492.13 +- 2.13 Latitude -31.706
Depth 6.60 +- 5.73
Arrival times = 10 S.D. = 0.147 Seismographs = 5
Nearest recorder = 68.0 km Gap = 94.7 deg Accuracy = A
Effects Code = Imax = 0 Fault =
0 km N (344 deg) of ME3
WESTERN AUSTRALIA
117 km E ( 77 deg) of PERTH
9 km SE (153 deg) of Meckering
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.3
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB i-P 50.20 0.10 1.30 50.10 0.10 68.0 79 5.8 5.8
KLB i S 57.80 0.10 1.17 57.83 -0.03 68.0 79 5.8 5.8
MUN i-P 52.90 0.10 1.28 52.98 -0.08 85.7 249 4.6 4.6
MUN e S 63.00 0.30 0.65 62.69 0.31 85.7 249 4.6 4.6
BAL i-P 59.40 0.10 1.24 59.30 0.10 126.3 344 -30.8 30.8
BAL e S 73.60 0.20 0.68 73.90 -0.30 126.3 344 3.1 3.1
NWAO i+P 60.60 0.10 1.23 60.70 -0.10 136.3 173 -30.8 30.8
NWAO e S 76.70 0.20 0.67 76.66 0.04 136.3 173 2.9 2.9
MRWA e P2 82.50 0.50 0.35 82.77 -0.27 293.9 339 -30.8 30.8
MRWA e S2 117.00 0.50 0.29 116.72 0.28 293.9 339 -23.9 23.9
10 times used, S = 0.147
Deferred Data
MRWA e P 82.50 0.50 0.58 80.44 2.06 293.9 339 -42.2 42.2
MRWA e PMP 82.50 0.50 0.35 83.12 -0.62 293.9 339 -31.8 31.8
MRWA e S 112.80 0.50 0.52 111.38 1.42 293.9 339 -40.3 40.3
MRWA e SMS 117.00 0.50 0.29 117.40 -0.40 293.9 339 -25.4 25.4
Velocity Ratios
KLB MUN BAL NWAO
KLB 1.68 0.00 1.72 1.82
0.02 0.00 0.07 0.07
MUN 0.00 1.72 1.63 1.78
0.00 0.03 0.13 0.11
BAL 1.72 1.63 1.69 0.00
0.07 0.13 0.02 0.00
NWAO 1.82 1.78 0.00 1.74
0.07 0.11 0.00 0.02
Date 1994-03-06
Origin Time 0918 28.50 +- 10.75
Zone 50
Easting 504.94 +- 76.81 Longitude 117.051
Northing 6708.46 +- 27.19 Latitude -29.754
Depth 5.00 +- 53.54 N
Arrival times = 7 S.D. = 1.287 Seismographs = 3
Nearest recorder = 100.1 km Gap = 257.8 deg Accuracy = C
Effects Code = Imax = 0 Fault =
44 km NW (320 deg) of KOO3
WESTERN AUSTRALIA
269 km NE ( 26 deg) of PERTH
10 km W (267 deg) of Mt Gibson Mine
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
BAL S-P 11.10 0.10 1.26 11.34 -0.24 100.1 199 0.0 0.0
BAL e P 44.00 0.10 0.88 44.86 -0.86 100.1 199 3.0 3.0
BAL e S 55.10 0.10 0.79 56.20 -1.10 100.1 199 3.0 3.0
MRWA e P 46.80 0.10 0.87 47.82 -1.02 118.3 300 2.6 2.6
MRWA e S 62.00 0.10 0.78 61.21 0.79 118.3 300 2.6 2.6
MUN e P 66.00 0.10 0.81 65.98 0.02 259.3 197 -42.2 42.2
MUN e S 97.00 0.10 0.73 93.93 3.07 259.3 197 -40.3 40.3
7 times used, S = 1.287
Velocity Ratios
BAL MRWA MUN
BAL 1.72 0.00 1.90
0.02 0.00 0.03
MRWA 0.00 1.83 1.82
0.00 0.02 0.03
MUN 1.90 1.82 1.83
0.03 0.03 0.01
Date 1994-03-09
Origin Time 0116 27.21 +- 0.54
Zone 50
Easting 542.63 +- 5.17 Longitude 117.452
Northing 6435.62 +- 3.27 Latitude -32.215
Depth 0.70 +- 8.25
Arrival times = 9 S.D. = 0.166 Seismographs = 5
Nearest recorder = 75.0 km Gap = 166.0 deg Accuracy = A
Effects Code = Imax = 0 Fault =
23 km S (166 deg) of QUAI
WESTERN AUSTRALIA
154 km E (101 deg) of PERTH
41 km W (288 deg) of Corrigin
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
KLB e P 39.20 0.20 0.79 39.44 -0.24 75.0 22 0.8 0.8
KLB e S 48.20 0.30 0.65 47.92 0.28 75.0 22 0.8 0.8
MUN e P 46.80 0.20 0.76 46.83 -0.03 120.3 282 0.5 0.5
MUN e S 60.50 0.50 0.57 60.44 0.06 120.3 282 0.5 0.5
BAL e P 57.10 0.10 0.83 57.00 0.10 191.8 338 -42.2 42.2
BAL e S 79.20 0.10 0.75 79.20 -0.00 191.8 338 -40.3 40.3
RKG e PG 70.20 0.20 0.70 70.32 -0.12 264.3 188 0.2 0.2
RKG e SG 100.40 0.30 0.58 100.21 0.19 264.3 188 0.2 0.2
MRWA e S 114.50 0.50 0.51 114.65 -0.15 360.2 336 -40.3 40.3
9 times used, S = 0.166
Deferred Data
KLB e S-P 8.60 0.30 0.73 8.48 0.12 75.0 22 0.0 0.0
MUN e S-P 13.50 0.50 0.63 13.61 -0.11 120.3 282 0.0 0.0
BAL e S-P 22.10 0.20 0.72 22.21 -0.11 191.8 338 0.0 0.0
RKG e P 70.20 0.20 0.70 65.76 4.44 264.3 188 -42.2 42.2
RKG e S 100.40 0.30 0.58 94.45 5.95 264.3 188 -40.3 40.3
MRWA e P 81.20 0.30 0.63 77.36 3.84 360.2 336 -42.2 42.2
Velocity Ratios
KLB MUN BAL
KLB 1.75 0.00 1.73
0.06 0.00 0.05
MUN 0.00 1.70 1.82
0.00 0.04 0.11
BAL 1.73 1.82 1.74
0.05 0.11 0.01
Date 1994-03-09
Origin Time 1527 43.40 +- 0.84
Zone 50
Easting 394.19 +- 12.66 Longitude 115.935
Northing 7029.92 +- 6.42 Latitude -26.848
Depth 36.50 +- 107.84
Arrival times = 17 S.D. = 0.744 Seismographs = 9
Nearest recorder = 262.6 km Gap = 175.9 deg Accuracy = B
Effects Code = Imax = 0 Fault =
178 km SE (113 deg) of LP01
WESTERN AUSTRALIA
566 km N ( 1 deg) of PERTH
315 km SE (134 deg) of CARNARVON
14 km N (346 deg) of Meeberrie
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
MRWA e P 78.70 0.20 0.70 78.51 0.19 262.6 178 0.0 42.2
MRWA e S 103.20 0.30 0.58 104.58 -1.38 262.6 178 0.0 40.3
MEEK i-P 79.10 0.10 1.15 79.12 -0.02 267.4 85 0.0 42.2
MEEK e S 106.00 0.40 0.55 105.64 0.36 267.4 85 0.0 40.3
BAL e P 99.00 0.20 0.67 97.92 1.08 423.2 169 0.0 42.2
BAL e S 139.00 0.50 0.50 138.39 0.61 423.2 169 0.0 40.3
NANU e P 104.80 0.30 0.61 104.60 0.20 478.6 354 0.0 42.2
NANU e S 149.00 0.50 0.50 150.02 -1.02 478.6 354 0.0 40.3
KLB e P 114.00 0.30 0.60 113.82 0.18 554.7 161 0.0 42.2
KLB e S 164.60 0.50 0.49 166.07 -1.47 554.7 161 0.0 40.3
MUN e P 116.80 0.30 0.60 115.56 1.24 569.1 177 0.0 42.2
COOL e P 129.50 0.50 0.53 128.63 0.87 676.9 132 0.0 42.2
COOL e S 192.00 0.50 0.48 191.85 0.15 676.9 132 0.0 40.3
NWAO i-P 129.30 0.10 1.05 129.59 -0.29 685.1 169 0.0 42.2
NWAO e S 193.00 0.30 0.53 193.52 -0.52 685.1 169 0.0 40.3
MBL e P 136.00 0.50 0.53 136.74 -0.74 744.3 32 0.0 42.2
MBL e S 205.00 2.00 0.36 205.96 -0.96 744.3 32 0.0 40.3
17 times used, S = 0.744
Deferred Data
MUN e S 171.00 0.50 0.49 169.09 1.91 569.1 177 0.0 40.3
Velocity Ratios
MRWA MEEK BAL NANU KLB COOL NWAO MBL
MRWA 1.69 0.00 1.76 1.75 1.74 1.75 1.77 1.78
0.02 0.00 0.08 0.07 0.05 0.04 0.02 0.06
MEEK 0.00 1.75 1.66 1.67 1.68 1.71 1.73 1.74
0.00 0.02 0.07 0.06 0.05 0.04 0.02 0.06
BAL 1.76 1.66 1.72 0.00 1.71 1.74 1.78 1.78
0.08 0.07 0.02 0.00 0.13 0.07 0.04 0.10
NANU 1.75 1.67 0.00 1.72 0.00 1.74 1.80 1.79
0.07 0.06 0.00 0.02 0.00 0.10 0.06 0.13
KLB 1.74 1.68 1.71 0.00 1.72 1.77 1.86 1.84
0.05 0.05 0.13 0.00 0.01 0.16 0.10 0.19
COOL 1.75 1.71 1.74 1.74 1.77 1.73 0.00 0.00
0.04 0.04 0.07 0.10 0.16 0.02 0.00 0.00
NWAO 1.77 1.73 1.78 1.80 1.86 0.00 1.74 0.00
0.02 0.02 0.04 0.06 0.10 0.00 0.01 0.00
MBL 1.78 1.74 1.78 1.79 1.84 0.00 0.00 1.75
0.06 0.06 0.10 0.13 0.19 0.00 0.00 0.03
Date 1994-03-09
Origin Time 1609 49.75 +- 0.81
Zone 50
Easting 540.07 +- 5.56 Longitude 117.425
Northing 6442.97 +- 4.48 Latitude -32.149
Depth 9.06 +- 20.90
Arrival times = 6 S.D. = 0.058 Seismographs = 3
Nearest recorder = 69.4 km Gap = 164.5 deg Accuracy = A
Effects Code = Imax = 0 Fault =
15 km S (169 deg) of QUAI
WESTERN AUSTRALIA
150 km E ( 99 deg) of PERTH
45 km NE ( 62 deg) of Brookton
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.4
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB e P 61.20 0.20 0.79 61.18 0.02 69.4 27 7.7 7.7
KLB e S 69.10 0.20 0.71 69.10 0.00 69.4 27 7.7 7.7
NWAO e P 64.10 0.10 0.89 64.20 -0.10 88.1 191 6.0 6.0
NWAO e S 74.30 0.10 0.80 74.21 0.09 88.1 191 6.0 6.0
MUN e P 68.50 0.10 0.87 68.49 0.01 116.4 279 -30.8 30.8
MUN i S 82.00 0.10 1.12 82.00 -0.00 116.4 279 4.6 4.6
6 times used, S = 0.058
Deferred Data
BAL e S 100.80 0.50 0.55 98.61 2.19 184.1 338 -40.3 40.3
BAL e SG 100.80 0.50 0.46 100.66 0.14 184.1 338 2.9 2.9
Velocity Ratios
KLB NWAO MUN
KLB 1.69 0.00 1.77
0.05 0.00 0.12
NWAO 0.00 1.71 1.75
0.00 0.02 0.13
MUN 1.77 1.75 1.72
0.12 0.13 0.01
Date 1994-03-11
Origin Time 0942 53.80 +- 4.72
Zone 50
Easting 834.96 +- 12.30 Longitude 120.332
Northing 7175.55 +- 19.32 Latitude -25.499
Depth 5.00 +- 40.79 N
Arrival times = 7 S.D. = 0.464 Seismographs = 4
Nearest recorder = 213.3 km Gap = 135.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
169 km S (158 deg) of MY35
WESTERN AUSTRALIA
838 km NE ( 33 deg) of PERTH
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.3
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MEEK S-P 23.50 0.10 1.18 23.85 -0.35 213.3 233 0.0 0.0
MEEK i P 86.10 0.10 1.18 85.73 0.37 213.3 233 -42.2 42.2
MEEK e S 109.60 0.20 0.65 109.58 0.02 213.3 233 -40.3 40.3
MBL e P 118.70 0.10 0.76 118.39 0.31 483.7 353 -42.2 42.2
NANU e P 130.50 0.10 0.75 131.28 -0.78 590.4 302 -42.2 42.2
WARB i P 137.00 0.10 1.06 137.38 -0.38 640.5 98 -42.2 42.2
WARB e S 200.00 0.10 0.67 199.51 0.49 640.5 98 -40.3 40.3
7 times used, S = 0.464
Deferred Data
NANU e S 181.00 0.10 0.67 188.89 -7.89 590.4 302 -40.3 40.3
Velocity Ratios
MEEK WARB
MEEK 1.73 1.78
0.01 0.01
WARB 1.78 1.76
0.01 0.00
Date 1994-03-12
Origin Time 2215 38.13 +- 0.33
Zone 50
Easting 538.71 +- 3.10 Longitude 117.410
Northing 6442.93 +- 1.88 Latitude -32.149
Depth 1.00 +- 5.92 G
Arrival times = 15 S.D. = 0.296 Seismographs = 5
Nearest recorder = 70.1 km Gap = 162.7 deg Accuracy = A
Effects Code = Imax = 0 Fault =
15 km S (174 deg) of QUAI
WESTERN AUSTRALIA
149 km E ( 99 deg) of PERTH
44 km NE ( 61 deg) of Brookton
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.5
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB i P 49.30 0.10 1.30 49.57 -0.27 70.1 28 1.1 1.1
KLB i S 57.60 0.20 1.02 57.50 0.10 70.1 28 1.1 1.1
NWAO i P 52.50 0.10 1.27 52.45 0.05 87.8 190 0.8 0.8
NWAO i S 62.50 0.10 1.15 62.38 0.12 87.8 190 0.8 0.8
MUN i-P 56.60 0.10 1.25 56.90 -0.30 115.0 279 0.6 0.6
MUN i S 69.90 0.20 0.98 69.91 -0.01 115.0 279 0.6 0.6
BAL e P 67.00 0.50 0.61 66.89 0.11 183.6 338 -42.2 42.2
BAL e PMP 67.40 0.20 0.44 67.64 -0.24 183.6 338 -34.1 34.1
BAL e S 88.00 0.30 0.60 88.34 -0.34 183.6 338 -40.3 40.3
BAL e SG 88.90 0.20 0.66 88.85 0.05 183.6 338 0.4 0.4
MRWA e P 87.30 0.30 0.63 87.25 0.05 352.0 337 -42.2 42.2
MRWA e PMP 91.30 0.30 0.38 90.84 0.46 352.0 337 -31.5 31.5
MRWA i S 124.50 0.20 0.88 123.78 0.72 352.0 337 -40.3 40.3
MRWA e SMS 132.00 0.20 0.34 131.76 0.24 352.0 337 -25.0 25.0
MRWA e SG 135.40 0.30 0.57 135.36 0.04 352.0 337 0.2 0.2
15 times used, S = 0.296
Deferred Data
RKG e P 79.70 0.20 0.70 77.45 2.25 270.9 187 -42.2 42.2
RKG e S 110.40 0.30 0.58 106.72 3.68 270.9 187 -40.3 40.3
Velocity Ratios
KLB NWAO MUN BAL MRWA
KLB 1.74 0.00 1.68 1.72 1.76
0.03 0.00 0.10 0.09 0.03
NWAO 0.00 1.70 1.80 1.76 1.78
0.00 0.02 0.17 0.10 0.03
MUN 1.68 1.80 1.72 1.74 1.78
0.10 0.17 0.02 0.16 0.04
BAL 1.72 1.76 1.74 1.73 1.80
0.09 0.10 0.16 0.04 0.10
MRWA 1.76 1.78 1.78 1.80 1.76
0.03 0.03 0.04 0.10 0.01
Date 1994-03-14
Origin Time 1512 56.73 +- 1.82
Zone 50
Easting 614.60 +- 12.72 Longitude 118.231
Northing 6315.46 +- 8.06 Latitude -33.294
Depth 5.00 +- 93.43 N
Arrival times = 8 S.D. = 0.405 Seismographs = 4
Nearest recorder = 101.6 km Gap = 231.4 deg Accuracy = B
Effects Code = Imax = 0 Fault =
43 km NW (304 deg) of PIN
WESTERN AUSTRALIA
269 km SE (124 deg) of PERTH
192 km N ( 10 deg) of ALBANY
31 km SW (226 deg) of Lake Grace
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
NWAO S-P 11.70 0.10 1.26 11.51 0.19 101.6 293 0.0 0.0
NWAO i P 73.50 0.10 1.26 73.33 0.17 101.6 293 3.0 3.0
NWAO e S 85.20 0.30 0.64 84.84 0.36 101.6 293 3.0 3.0
RKG e PG 86.10 0.20 0.73 86.27 -0.17 181.0 218 1.7 1.7
RKG e SG 106.70 0.20 0.66 106.74 -0.04 181.0 218 1.7 1.7
KLB e PG 89.00 0.50 0.60 88.36 0.64 193.8 346 1.6 1.6
KLB e SG 110.00 0.50 0.54 110.29 -0.29 193.8 346 1.6 1.6
MUN e SG 122.00 0.10 0.73 122.85 -0.85 239.3 307 1.3 1.3
8 times used, S = 0.405
Deferred Data
RKG e P 86.10 0.20 0.73 84.73 1.37 181.0 218 -42.2 42.2
RKG e S 106.70 0.30 0.60 105.67 1.03 181.0 218 -40.3 40.3
KLB e P 89.00 0.50 0.60 86.29 2.71 193.8 346 -42.2 42.2
KLB e S 110.00 0.50 0.54 108.37 1.63 193.8 346 -40.3 40.3
MUN e S 122.00 0.50 0.53 117.94 4.06 239.3 307 -40.3 40.3
Velocity Ratios
NWAO
NWAO 1.70
0.03
Date 1994-03-15
Origin Time 1751 57.50 +- 3.81
Zone 50
Easting 525.87 +- 35.02 Longitude 117.271
Northing 6555.02 +- 19.87 Latitude -31.138
Depth 5.00 +- 61.87 N
Arrival times = 6 S.D. = 0.684 Seismographs = 5
Nearest recorder = 68.4 km Gap = 167.7 deg Accuracy = C
Effects Code = Imax = 0 Fault =
41 km S (162 deg) of CA1
WESTERN AUSTRALIA
162 km NE ( 57 deg) of PERTH
24 km E ( 74 deg) of Dowerin
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 S 76.00 0.50 0.59 76.46 -0.46 68.4 137 4.4 4.4
BAL e P 71.10 0.10 0.90 70.56 0.54 79.9 317 3.8 3.8
MUN e P 79.40 0.20 0.75 79.51 -0.11 137.3 226 -30.8 30.8
MUN e S 95.00 0.40 0.59 95.45 -0.45 137.3 226 2.2 2.2
NWAO e S 110.80 0.40 0.57 110.07 0.73 198.3 181 -40.3 40.3
MRWA e SG 124.00 1.00 0.46 125.38 -1.38 245.7 329 1.2 1.2
6 times used, S = 0.684
Deferred Data
MRWA e S 124.00 1.00 0.46 120.06 3.94 245.7 329 -40.3 40.3
Velocity Ratios
MUN
MUN 1.71
0.03
Date 1994-03-17
Origin Time 0517 10.57 +- 0.49
Zone 50
Easting 525.41 +- 3.72 Longitude 117.267
Northing 6551.97 +- 2.77 Latitude -31.166
Depth 6.88 +- 8.57
Arrival times = 9 S.D. = 0.118 Seismographs = 5
Nearest recorder = 66.5 km Gap = 165.2 deg Accuracy = A
Effects Code = Imax = 0 Fault =
29 km W (285 deg) of WYAL
WESTERN AUSTRALIA
160 km NE ( 57 deg) of PERTH
23 km E ( 81 deg) of Dowerin
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 21.40 0.10 0.91 21.49 -0.09 66.5 135 6.2 6.2
KLB e S 29.20 0.20 0.72 29.06 0.14 66.5 135 6.2 6.2
BAL e P 24.00 0.10 0.90 23.98 0.02 81.9 319 5.0 5.0
BAL e S 33.20 0.20 0.70 33.28 -0.08 81.9 319 5.0 5.0
MUN i-P 32.20 0.10 1.23 32.09 0.11 134.9 227 -30.8 30.8
MUN e S 47.80 0.20 0.67 47.89 -0.09 134.9 227 3.0 3.0
NWAO e P 39.90 0.50 0.60 40.08 -0.18 195.2 180 -42.2 42.2
NWAO e S 62.00 0.50 0.54 62.16 -0.16 195.2 180 -40.3 40.3
MRWA P2 48.00 0.50 0.51 47.95 0.05 248.1 330 -30.8 30.8
9 times used, S = 0.118
Deferred Data
KLB e SMS 33.00 0.30 0.37 35.34 -2.34 66.5 135 -47.7 47.7
BAL e SMS 37.70 0.20 0.39 38.34 -0.64 81.9 319 -42.5 42.5
MRWA e P 48.00 0.50 0.59 46.49 1.51 248.1 330 -42.2 42.2
MRWA e S 76.00 1.00 0.46 73.30 2.70 248.1 330 -40.3 40.3
MRWA S2 76.00 1.00 0.37 76.74 -0.74 248.1 330 -23.9 23.9
Velocity Ratios
KLB BAL MUN NWAO
KLB 1.72 0.00 1.72 1.77
0.03 0.00 0.07 0.10
BAL 0.00 1.69 1.78 1.81
0.00 0.03 0.09 0.12
MUN 1.72 1.78 1.72 0.00
0.07 0.09 0.02 0.00
NWAO 1.77 1.81 0.00 1.75
0.10 0.12 0.00 0.05
Date 1994-03-17
Origin Time 1144 8.64 +- 6.55
Zone 50
Easting 539.78 +- 52.19 Longitude 117.422
Northing 6443.10 +- 37.05 Latitude -32.148
Depth 8.53 +- 157.93
Arrival times = 5 S.D. = 0.067 Seismographs = 3
Nearest recorder = 69.4 km Gap = 164.1 deg Accuracy = A
Effects Code = Imax = 0 Fault =
15 km S (170 deg) of QUAI
WESTERN AUSTRALIA
150 km E ( 99 deg) of PERTH
45 km NE ( 62 deg) of Brookton
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.4
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB e S 28.00 0.30 0.66 27.98 0.02 69.4 27 7.2 7.2
NWAO e P 23.00 0.20 0.78 23.09 -0.09 88.1 191 5.7 5.7
NWAO e S 33.20 0.20 0.70 33.11 0.09 88.1 191 5.7 5.7
MUN e P 27.40 0.20 0.76 27.39 0.01 116.1 279 -30.8 30.8
MUN e S 40.80 0.20 0.68 40.80 -0.00 116.1 279 4.3 4.3
5 times used, S = 0.067
Deferred Data
BAL e SG 59.00 1.00 0.48 59.49 -0.49 183.8 338 2.8 2.8
Velocity Ratios
NWAO MUN
NWAO 1.71 0.00
0.04 0.00
MUN 0.00 1.71
0.00 0.03
Date 1994-03-23
Origin Time 0147 41.58 +- 0.37
Zone 50
Easting 524.15 +- 2.83 Longitude 117.253
Northing 6551.35 +- 2.00 Latitude -31.171
Depth 5.17 +- 5.34
Arrival times = 13 S.D. = 0.296 Seismographs = 7
Nearest recorder = 67.0 km Gap = 92.6 deg Accuracy = A
Effects Code = Imax = 0 Fault =
30 km W (283 deg) of WYAL
WESTERN AUSTRALIA
159 km NE ( 57 deg) of PERTH
22 km E ( 82 deg) of Dowerin
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
KLB e P 52.40 0.20 0.79 52.54 -0.14 67.0 134 4.7 4.7
KLB e S 60.20 0.20 0.71 60.15 0.05 67.0 134 4.7 4.7
BAL i+P 55.00 0.10 1.28 54.91 0.09 81.5 320 3.8 3.8
BAL e S 64.20 0.20 0.70 64.15 0.05 81.5 320 3.8 3.8
MUN i+P 62.70 0.20 1.07 63.05 -0.35 133.5 227 -30.8 30.8
MUN e S 78.60 0.20 0.67 78.50 0.10 133.5 227 2.3 2.3
NWAO e P 71.30 0.20 0.72 71.20 0.10 194.6 180 -42.2 42.2
NWAO e S 93.80 0.30 0.60 93.34 0.46 194.6 180 -40.3 40.3
MRWA e P 78.00 0.20 0.71 77.67 0.33 248.0 330 -42.2 42.2
MRWA e S2 108.00 0.30 0.33 107.92 0.08 248.0 330 -23.9 23.9
COOL e P 92.50 0.30 0.63 92.81 -0.31 373.0 86 -42.2 42.2
COOL e S 131.50 0.50 0.51 130.95 0.55 373.0 86 -40.3 40.3
MEEK e S 161.20 0.30 0.55 161.80 -0.60 519.5 15 -40.3 40.3
13 times used, S = 0.296
Deferred Data
GOO S-P 10.00 10.00 0.54 5.18 4.82 45.5 236 0.0 0.0
CAA S-P 10.00 10.00 0.53 5.48 4.52 48.2 348 0.0 0.0
MRWA e S 108.00 0.30 0.59 104.60 3.40 248.0 330 -40.3 40.3
RKG e S 134.00 1.00 0.44 131.84 2.16 377.4 183 -40.3 40.3
Velocity Ratios
KLB BAL MUN NWAO COOL
KLB 1.72 0.00 1.79 1.78 1.78
0.05 0.00 0.11 0.07 0.04
BAL 0.00 1.69 1.87 1.82 1.79
0.00 0.03 0.13 0.07 0.04
MUN 1.79 1.87 1.75 1.77 1.78
0.11 0.13 0.03 0.15 0.05
NWAO 1.78 1.82 1.77 1.76 1.78
0.07 0.07 0.15 0.02 0.08
COOL 1.78 1.79 1.78 1.78 1.77
0.04 0.04 0.05 0.08 0.02
Date 1994-03-23
Origin Time 1150 37.01 +- 2.56
Zone 50
Easting 574.53 +- 8.03 Longitude 117.714
Northing 7756.06 +- 24.57 Latitude -20.292
Depth 5.00 +- 44.24 N
Arrival times = 16 S.D. = 0.697 Seismographs = 9
Nearest recorder = 240.8 km Gap = 252.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
66 km N ( 6 deg) of RP01
WESTERN AUSTRALIA
111 km E ( 69 deg) of Dampier
90 km W (270 deg) of PORT HEDLAND
Record Dur Sync Unc Resp Seismometer Recorder Pol
MRWA -0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.7
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBL i+P 72.10 0.10 1.17 72.24 -0.14 240.8 114 -42.2 42.2
NANU i+P 84.00 0.10 1.13 84.09 -0.09 338.9 222 -42.2 42.2
NANU e S 119.00 0.50 0.52 119.15 -0.15 338.9 222 -40.3 40.3
MEEK i-P 129.70 0.10 1.05 128.85 0.85 708.7 172 -42.2 42.2
MRWA i-P 164.70 0.20 0.88 164.48 0.22 1003.5 189 -42.2 42.2
MRWA e S 258.90 0.20 0.55 259.12 -0.22 1003.5 189 -40.3 40.3
BAL e P 182.20 0.20 0.61 181.80 0.40 1146.7 184 -42.2 42.2
BAL e S 290.30 0.30 0.51 289.27 1.03 1146.7 184 -40.3 40.3
COOL e P 191.50 0.30 0.56 191.07 0.43 1223.2 164 -42.2 42.2
COOL e S 305.00 0.50 0.46 305.40 -0.40 1223.2 164 -40.3 40.3
KLB e P 194.40 0.30 0.56 194.47 -0.07 1251.5 179 -42.2 42.2
KLB e S 311.70 0.30 0.51 311.33 0.37 1251.5 179 -40.3 40.3
MUN e P 199.00 0.50 0.51 200.68 -1.68 1303.0 186 -42.2 42.2
MUN e S 321.50 0.30 0.51 322.15 -0.65 1303.0 186 -40.3 40.3
NWAO e P 210.90 0.20 0.61 212.45 -1.55 1400.2 181 -42.2 42.2
NWAO e S 341.90 0.30 0.51 342.63 -0.73 1400.2 181 -40.3 40.3
16 times used, S = 0.697
Deferred Data
MEEK e S 199.50 0.50 0.48 197.09 2.41 708.7 172 -40.3 40.3
Velocity Ratios
NANU MRWA BAL COOL KLB MUN NWAO
NANU 1.74 1.73 1.74 1.73 1.75 1.76 1.76
0.01 0.02 0.01 0.02 0.01 0.02 0.01
MRWA 1.73 1.74 1.79 1.72 1.78 1.83 1.80
0.02 0.00 0.07 0.06 0.05 0.05 0.03
BAL 1.74 1.79 1.74 1.58 1.75 1.86 1.80
0.01 0.07 0.00 0.18 0.13 0.12 0.05
COOL 1.73 1.72 1.58 1.73 0.00 0.00 1.90
0.02 0.06 0.18 0.01 0.00 0.00 0.09
KLB 1.75 1.78 1.75 0.00 1.75 0.00 1.83
0.01 0.05 0.13 0.00 0.01 0.00 0.09
MUN 1.76 1.83 1.86 0.00 0.00 1.76 1.71
0.02 0.05 0.12 0.00 0.00 0.01 0.16
NWAO 1.76 1.80 1.80 1.90 1.83 1.71 1.75
0.01 0.03 0.05 0.09 0.09 0.16 0.00
Date 1994-03-24
Origin Time 0810 46.94 +- 16.70
Zone 50
Easting 527.90 +- 79.34 Longitude 117.288
Northing 6724.95 +- 28.07 Latitude -29.605
Depth 5.00 +- 88.33 N
Arrival times = 8 S.D. = 1.303 Seismographs = 4
Nearest recorder = 124.3 km Gap = 239.9 deg Accuracy = C
Effects Code = Imax = 0 Fault =
50 km N (353 deg) of KOO3
WESTERN AUSTRALIA
294 km NE ( 28 deg) of PERTH
21 km NE ( 40 deg) of Mt Gibson Mine
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
BAL e P 65.30 0.20 0.75 67.14 -1.84 124.3 206 -30.8 30.8
BAL e S 81.50 0.30 0.63 81.32 0.18 124.3 206 2.4 2.4
MRWA i-P 68.60 0.10 1.23 68.28 0.32 132.5 288 -30.8 30.8
MRWA e S 83.50 0.20 0.67 83.57 -0.07 132.5 288 2.3 2.3
KLB e P 81.00 0.50 0.60 80.24 0.76 224.8 168 -42.2 42.2
KLB e S 106.00 0.50 0.54 105.10 0.90 224.8 168 -40.3 40.3
MUN e P 85.00 1.00 0.51 87.23 -2.23 282.6 201 -42.2 42.2
MUN e S 120.00 1.00 0.46 117.26 2.74 282.6 201 -40.3 40.3
8 times used, S = 1.303
Velocity Ratios
BAL MRWA KLB MUN
BAL 1.88 0.00 1.56 1.95
0.04 0.00 0.13 0.20
MRWA 0.00 1.69 1.81 0.00
0.00 0.02 0.15 0.00
KLB 1.56 1.81 1.73 0.00
0.13 0.15 0.04 0.00
MUN 1.95 0.00 0.00 1.92
0.20 0.00 0.00 0.08
Date 1994-03-27
Origin Time 0251 52.61 +- 5.37
Zone 52
Easting 543.70 +- 24.64 Longitude 129.425
Northing 7506.75 +- 36.67 Latitude -22.545
Depth 24.76 +- 76.17
Arrival times = 6 S.D. = 0.128 Seismographs = 3
Nearest recorder = 475.8 km Gap = 207.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
475 km W (284 deg) of ASPA
NORTHERN TERRITORY
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 2.4
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
ASPA e P 114.30 0.30 0.61 114.35 -0.05 475.8 106 -30.3 42.2
ASPA e S 160.40 0.50 0.50 160.36 0.04 475.8 106 -33.5 40.3
WARB e P 116.50 0.30 0.61 116.28 0.22 491.9 214 -30.3 42.2
WARB e S 163.70 0.50 0.50 163.72 -0.02 491.9 214 -33.5 40.3
WRA e P 127.60 0.30 0.60 127.70 -0.10 586.4 61 -30.3 42.2
WRA e S 183.70 0.50 0.49 183.61 0.09 586.4 61 -33.5 40.3
6 times used, S = 0.128
Deferred Data
FORT e S 251.50 1.00 0.41 254.68 -3.18 924.2 188 -33.5 40.3
Velocity Ratios
ASPA WARB WRA
ASPA 1.75 0.00 1.75
0.02 0.00 0.16
WARB 0.00 1.74 1.80
0.00 0.02 0.20
WRA 1.75 1.80 1.75
0.16 0.20 0.01
Date 1994-03-28
Origin Time 0631 9.57 +- 10.28
Zone 50
Easting 561.70 +- 103.27 Longitude 117.667
Northing 6248.56 +- 19.37 Latitude -33.901
Depth 5.00 +- 60.11 N
Arrival times = 6 S.D. = 0.567 Seismographs = 4
Nearest recorder = 95.7 km Gap = 217.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
31 km W (277 deg) of GNOT
WESTERN AUSTRALIA
275 km SE (142 deg) of PERTH
123 km N (351 deg) of ALBANY
27 km SE (156 deg) of Katanning
Record Dur Sync Unc Resp Seismometer Recorder Pol
NWAO -0.00 Seismograph details unknown
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
RKG e P 25.00 0.10 0.89 25.20 -0.20 95.7 218 3.2 3.2
RKG e S 36.30 0.20 0.69 36.04 0.26 95.7 218 3.2 3.2
NWAO i+P 27.95 0.05 1.43 28.41 -0.46 115.4 339 2.6 2.6
NWAO i S 41.70 0.10 1.12 41.48 0.22 115.4 339 2.6 2.6
MUN e P 47.00 0.20 0.71 46.29 0.71 253.1 327 -42.2 42.2
KLB e P 48.00 1.00 0.51 46.67 1.33 256.2 1 -42.2 42.2
6 times used, S = 0.567
Deferred Data
MUN e S 75.50 0.30 0.59 73.68 1.82 253.1 327 -40.3 40.3
MUN e SMS 78.50 0.30 0.33 78.05 0.45 253.1 327 -26.1 26.1
KLB e S 77.00 0.50 0.53 74.35 2.65 256.2 1 -40.3 40.3
KLB e S2 79.00 0.50 0.29 78.00 1.00 256.2 1 -23.9 23.9
Velocity Ratios
RKG NWAO
RKG 1.73 0.00
0.02 0.00
NWAO 0.00 1.75
0.00 0.01
Date 1994-03-31
Origin Time 2030 11.47 +- 12.66
Zone 50
Easting 624.73 +- 32.68 Longitude 118.343
Northing 6288.45 +- 37.84 Latitude -33.536
Depth 5.00 +- 55.53 N
Arrival times = 10 S.D. = 1.767 Seismographs = 4
Nearest recorder = 123.6 km Gap = 317.3 deg Accuracy = C
Effects Code = Imax = 0 Fault =
25 km W (264 deg) of PIN
WESTERN AUSTRALIA
292 km SE (128 deg) of PERTH
168 km N ( 15 deg) of ALBANY
50 km S (194 deg) of Lake Grace
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 1.5
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
NWAO S-P 14.70 0.10 1.24 14.08 0.62 123.6 302 0.0 0.0
NWAO i P 30.80 0.10 1.24 31.55 -0.75 123.6 302 -30.8 30.8
NWAO i S 45.50 0.10 1.11 45.63 -0.13 123.6 302 2.4 2.4
KLB e PG 48.00 1.00 0.52 47.76 0.24 222.4 345 1.4 1.4
KLB e P 48.00 1.00 0.52 44.48 3.52 222.4 345 -42.2 42.2
KLB e SG 70.70 0.30 0.59 72.93 -2.23 222.4 345 1.4 1.4
KLB e S 70.70 0.30 0.59 69.13 1.57 222.4 345 -40.3 40.3
MUN e S 82.30 0.30 0.58 77.93 4.37 264.2 310 -40.3 40.3
MUN e SG 82.30 0.30 0.58 84.48 -2.18 264.2 310 1.1 1.1
BAL e SG 110.00 0.50 0.51 110.81 -0.81 359.6 334 0.8 0.8
10 times used, S = 1.767
Deferred Data
RKG e P 49.30 0.50 0.61 37.80 11.50 168.1 226 -30.8 30.8
RKG e S 68.30 0.30 0.61 57.66 10.64 168.1 226 -23.9 23.9
BAL e S 110.00 0.50 0.51 98.01 11.99 359.6 334 -40.3 40.3
Velocity Ratios
NWAO KLB
NWAO 1.76 1.47
0.01 0.12
KLB 1.47 1.62
0.12 0.05
Date 1994-03-31
Origin Time 2316 1.90 +- 0.21
Zone 50
Easting 527.04 +- 3.22 Longitude 117.284
Northing 6553.59 +- 2.59 Latitude -31.151
Depth 7.84 +- 4.14
Arrival times = 12 S.D. = 0.105 Seismographs = 5
Nearest recorder = 66.6 km Gap = 167.7 deg Accuracy = A
Effects Code = Imax = 0 Fault =
42 km S (162 deg) of CA1
WESTERN AUSTRALIA
162 km NE ( 57 deg) of PERTH
25 km E ( 77 deg) of Dowerin
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 13.00 0.30 0.73 12.84 0.16 66.6 137 7.0 7.0
KLB e S 20.30 0.20 0.72 20.43 -0.13 66.6 137 7.0 7.0
BAL i-P 15.30 0.10 1.28 15.30 0.00 81.7 317 5.7 5.7
BAL e PMP 17.70 0.20 0.47 17.62 0.08 81.7 317 -44.9 44.9
BAL i S 24.60 0.10 1.15 24.59 0.01 81.7 317 5.7 5.7
BAL e SMS 29.30 0.30 0.36 29.46 -0.16 81.7 317 -42.3 42.3
MUN i-P 23.60 0.10 1.23 23.65 -0.05 137.2 227 -30.8 30.8
MUN e SMS 42.00 0.20 0.37 41.79 0.21 137.2 227 -31.8 31.8
NWAO e P 31.60 0.10 0.83 31.51 0.09 196.8 181 -42.2 42.2
NWAO e P2 31.80 0.10 0.50 32.01 -0.21 196.8 181 -30.8 30.8
NWAO e S2 55.20 0.30 0.33 55.01 0.19 196.8 181 -23.9 23.9
MRWA e SMS 68.60 0.10 0.41 68.65 -0.05 247.5 329 -26.1 26.1
12 times used, S = 0.105
Deferred Data
MUN e S 38.80 0.20 0.67 39.86 -1.06 137.2 227 3.4 3.4
NWAO e SN 53.30 0.30 0.40 53.66 -0.36 196.8 181 -40.3 40.3
MRWA e PMP 40.00 0.20 0.43 39.54 0.46 247.5 329 -32.3 32.3
COOL e S 92.00 1.00 0.44 90.16 1.84 370.0 86 -40.3 40.3
COOL e SG 102.00 1.00 0.44 104.13 -2.13 370.0 86 1.3 1.3
Velocity Ratios
KLB BAL
KLB 1.66 0.00
0.06 0.00
BAL 0.00 1.69
0.00 0.02