Data Report
Bulletin / 1993-04
Contributed by CUPWA
Date 1993-04-03
Origin Time 1005 27.43 +- 80.72
Zone 51
Easting 644.28 +- 844.28 Longitude 124.503
Northing 6628.44 +-1202.43 Latitude -30.467
Depth 5.00 +-1300.91 N
Arrival times = 5 S.D. = 0.496 Seismographs = 3
Nearest recorder = 325.0 km Gap = 236.7 deg Accuracy = D
Effects Code = Imax = 0 Fault =
254 km E ( 76 deg) of KLDM
WESTERN AUSTRALIA
841 km E ( 81 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 2.2
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
COOL e P 72.50 0.30 0.64 72.87 -0.37 325.0 260 -42.2 42.2
COOL e S 107.00 0.50 0.52 106.72 0.28 325.0 260 -40.3 40.3
WARB e P 97.00 1.00 0.48 96.36 0.64 519.2 24 -42.2 42.2
WARB e S 147.00 1.00 0.43 147.61 -0.61 519.2 24 -40.3 40.3
MRWA e S 214.00 1.00 0.41 213.94 0.06 834.5 277 -40.3 40.3
5 times used, S = 0.496
Deferred Data
MEEK w S 195.00 10.00 0.24 188.97 6.03 715.6 305 -40.3 40.3
Velocity Ratios
COOL WARB
COOL 1.77 1.63
0.02 0.16
WARB 1.63 1.72
0.16 0.04
Date 1993-04-04
Origin Time 1835 15.46 +- 1.79
Zone 53
Easting 390.88 +- 27.27 Longitude 133.959
Northing 7822.94 +- 16.13 Latitude -19.686
Depth 5.00 +- 36.30 N
Arrival times = 10 S.D. = 1.001 Seismographs = 5
Nearest recorder = 49.2 km Gap = 147.9 deg Accuracy = C
Effects Code = Imax = 0 Fault =
19 km N ( 18 deg) of TCBY
NORTHERN TERRITORY
868 km SE (158 deg) of DARWIN
24 km W (260 deg) of TENNANT CREEK
Record Dur Sync Unc Resp Seismometer Recorder Pol
ASPA 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 2.8
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
WRA i-P 23.30 0.10 1.34 23.53 -0.23 49.2 125 6.2 6.2
WRA e S 29.60 0.30 0.68 29.13 0.47 49.2 125 6.2 6.2
ASPA i-P 75.20 0.10 1.10 75.13 0.07 442.6 180 -42.2 42.2
ASPA e S 121.10 0.50 0.50 119.52 1.58 442.6 180 -40.3 40.3
KNA e P 107.40 1.00 0.46 106.61 0.79 703.3 307 -42.2 42.2
KNA e S 174.00 2.00 0.36 174.34 -0.34 703.3 307 -40.3 40.3
KNA e SG 210.00 1.00 0.42 209.76 0.24 703.3 307 0.4 0.4
MTN e S 199.00 1.00 0.41 197.92 1.08 815.4 337 -40.3 40.3
WARB e P 145.00 0.30 0.57 147.62 -2.62 1042.2 224 -42.2 42.2
WARB e S 246.70 0.30 0.51 245.74 0.96 1042.2 224 -40.3 40.3
10 times used, S = 1.001
Deferred Data
MTN e SG 246.00 2.00 0.36 240.71 5.29 815.4 337 0.4 0.4
Velocity Ratios
WRA ASPA KNA WARB
WRA 1.80 1.76 1.72 1.78
0.06 0.02 0.05 0.01
ASPA 1.76 1.77 1.64 1.80
0.02 0.01 0.14 0.02
KNA 1.72 1.64 1.72 1.93
0.05 0.14 0.04 0.13
WARB 1.78 1.80 1.93 1.79
0.01 0.02 0.13 0.01
Date 1993-04-05
Origin Time 1754 39.68 +- 5.39
Zone 52
Easting 358.87 +- 32.29 Longitude 127.593
Northing 7149.29 +- 61.43 Latitude -25.768
Depth 5.00 +- 63.26 N
Arrival times = 8 S.D. = 1.254 Seismographs = 6
Nearest recorder = 105.7 km Gap = 155.1 deg Accuracy = C
Effects Code = Imax = 0 Fault =
105 km NE ( 64 deg) of WARB
WESTERN AUSTRALIA
109 km E ( 69 deg) of WARBURTON
Record Dur Sync Unc Resp Seismometer Recorder Pol
ASPA 0.00 Seismograph details unknown
COOL -0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
WARB i-P 56.40 0.20 1.09 56.94 -0.54 105.7 243 3.0 3.0
WARB e S 68.00 1.00 0.50 68.91 -0.91 105.7 243 3.0 3.0
ASPA i+P 129.00 0.10 1.05 127.91 1.09 678.8 71 -42.2 42.2
ASPA i S 191.60 0.30 0.76 193.48 -1.88 678.8 71 -40.3 40.3
COOL e P 151.00 0.50 0.52 148.72 2.28 851.0 226 -42.2 42.2
MEEK e P 156.00 0.20 0.62 155.45 0.55 906.6 261 -42.2 42.2
MBL e P 160.30 0.20 0.62 160.20 0.10 946.2 301 -42.2 42.2
WRA e S 249.70 0.50 0.46 249.80 -0.10 946.6 48 -40.3 40.3
8 times used, S = 1.254
Deferred Data
FORT e P 115.50 0.50 0.55 113.42 2.08 559.4 175 -42.2 42.2
FORT e S 172.00 0.50 0.49 168.25 3.75 559.4 175 -40.3 40.3
COOL e S 235.00 0.50 0.47 229.70 5.30 851.0 226 -40.3 40.3
COOL e SG 275.00 2.00 0.36 274.76 0.24 851.0 226 0.4 0.4
MEEK e S 243.00 0.30 0.52 241.42 1.58 906.6 261 -40.3 40.3
MBL e S 251.00 0.30 0.51 249.69 1.31 946.2 301 -40.3 40.3
WRA e P 156.90 0.30 0.57 160.26 -3.36 946.6 48 -42.2 42.2
KLB e S 297.00 1.00 0.40 295.27 1.73 1162.6 233 -40.3 40.3
BAL e P 188.00 1.00 0.44 191.18 -3.18 1202.4 240 -42.2 42.2
BAL e S 303.00 1.00 0.40 303.64 -0.64 1202.4 240 -40.3 40.3
MRWA e P 191.00 1.00 0.44 192.82 -1.82 1215.9 248 -42.2 42.2
MRWA e S 307.00 0.50 0.46 306.49 0.51 1215.9 248 -40.3 40.3
NWAO e S 324.00 2.00 0.35 321.43 2.57 1286.9 229 -40.3 40.3
NANU e P 201.00 0.50 0.51 201.76 -0.76 1290.0 283 -42.2 42.2
NANU e S 323.00 0.50 0.46 322.05 0.95 1290.0 283 -40.3 40.3
MUN e P 206.00 1.00 0.44 204.65 1.35 1313.8 235 -42.2 42.2
MUN e S 328.00 0.50 0.46 327.09 0.91 1313.8 235 -40.3 40.3
Velocity Ratios
WARB ASPA
WARB 1.69 1.70
0.08 0.03
ASPA 1.70 1.70
0.03 0.01
Date 1993-04-06
Origin Time 1118 40.60 +- 157.32
Zone 50
Easting 416.24 +- 513.08 Longitude 116.178
Northing 7367.43 +- 332.11 Latitude -23.802
Depth 5.00 +-1790.89 N
Arrival times = 5 S.D. = 1.054 Seismographs = 3
Nearest recorder = 155.5 km Gap = 190.8 deg Accuracy = C
Effects Code = Imax = 0 Fault =
98 km SW (241 deg) of LP06
WESTERN AUSTRALIA
903 km N ( 2 deg) of PERTH
353 km S (189 deg) of Dampier
281 km NE ( 65 deg) of CARNARVON
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.1
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
NANU i+P 64.10 0.10 1.21 65.15 -1.05 155.5 333 -30.8 30.8
NANU e S 84.50 0.30 0.61 83.58 0.92 155.5 333 -23.9 23.9
MEEK e P 96.00 0.30 0.62 94.94 1.06 398.5 142 -42.2 42.2
MBL w P 104.00 0.10 0.78 104.33 -0.33 476.5 52 -42.2 42.2
MBL e S 152.00 0.50 0.50 151.73 0.27 476.5 52 -40.3 40.3
5 times used, S = 1.054
Deferred Data
MEEK e S 130.00 5.00 0.32 135.38 -5.38 398.5 142 -40.3 40.3
MRWA w S 176.00 5.00 0.31 177.79 -1.79 600.2 181 -40.3 40.3
MRWA w SG 206.00 2.00 0.38 206.40 -0.40 600.2 181 0.5 0.5
Velocity Ratios
NANU MBL
NANU 1.87 1.69
0.02 0.03
MBL 1.69 1.76
0.03 0.01
Date 1993-04-06
Origin Time 1220 45.91 +- 59.03
Zone 50
Easting 581.38 +- 397.15 Longitude 117.877
Northing 6278.67 +- 115.00 Latitude -33.629
Depth 1.00 +- 282.00 C
Arrival times = 5 S.D. = 0.171 Seismographs = 4
Nearest recorder = 98.3 km Gap = 219.9 deg Accuracy = C
Effects Code = Imax = 0 Fault =
37 km NW (312 deg) of GNOC
WESTERN AUSTRALIA
266 km SE (135 deg) of PERTH
152 km N ( 0 deg) of ALBANY
31 km E ( 79 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 1.7
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
NWAO e P 62.00 0.30 0.71 61.94 0.06 98.3 322 0.7 0.7
NWAO e S 72.90 0.30 0.64 73.06 -0.16 98.3 322 0.7 0.7
RKG e S 82.20 1.00 0.49 82.24 -0.04 131.5 217 0.6 0.6
KLB e S 105.00 1.00 0.47 105.06 -0.06 226.1 357 -40.3 40.3
MUN e S 111.20 0.10 0.41 110.84 0.36 240.6 319 -23.9 23.9
5 times used, S = 0.171
Deferred Data
RKG w P 67.00 1.00 0.55 67.37 -0.37 131.5 217 0.6 0.6
KLB e SG 105.00 1.00 0.47 108.37 -3.37 226.1 357 0.3 0.3
MUN e P 82.90 0.50 0.59 81.56 1.34 240.6 319 -42.2 42.2
MRWA e SG 186.00 1.00 0.43 189.70 -3.70 520.5 339 0.1 0.1
Velocity Ratios
NWAO
NWAO 1.68
0.05
Date 1993-04-06
Origin Time 2039 43.57 +- 0.55
Zone 50
Easting 445.97 +- 5.09 Longitude 116.433
Northing 6548.65 +- 3.26 Latitude -31.195
Depth 1.00 +- 7.47 C
Arrival times = 10 S.D. = 0.293 Seismographs = 5
Nearest recorder = 70.2 km Gap = 155.4 deg Accuracy = B
Effects Code = Imax = 0 Fault =
14 km N (340 deg) of PIG3
WESTERN AUSTRALIA
100 km NE ( 34 deg) of PERTH
11 km NW (322 deg) of Bolgart
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 e P 54.80 0.20 0.79 55.03 -0.23 70.2 21 1.1 1.1
BAL e S 62.50 0.30 0.66 62.97 -0.47 70.2 21 1.1 1.1
MUN e P 58.00 0.30 0.71 58.15 -0.15 89.4 193 0.8 0.8
MUN e S 68.00 0.30 0.64 68.27 -0.27 89.4 193 0.8 0.8
KLB e P 65.40 0.20 0.75 65.37 0.03 133.6 109 0.6 0.6
KLB e S 80.70 0.30 0.62 80.48 0.22 133.6 109 0.6 0.6
NWAO e P 75.30 0.20 0.72 75.06 0.24 206.3 158 -42.2 42.2
NWAO e S 98.50 0.30 0.60 98.54 -0.04 206.3 158 -40.3 40.3
MRWA e P 77.50 0.30 0.66 77.10 0.40 223.1 349 -42.2 42.2
MRWA e S 102.50 0.30 0.59 102.08 0.42 223.1 349 -40.3 40.3
10 times used, S = 0.293
Velocity Ratios
BAL MUN KLB NWAO MRWA
BAL 1.69 0.00 1.72 1.76 1.76
0.06 0.00 0.13 0.06 0.07
MUN 0.00 1.69 0.00 1.76 1.77
0.00 0.06 0.00 0.09 0.09
KLB 1.72 0.00 1.70 1.80 1.80
0.13 0.00 0.03 0.14 0.13
NWAO 1.76 1.76 1.80 1.73 0.00
0.06 0.09 0.14 0.02 0.00
MRWA 1.76 1.77 1.80 0.00 1.74
0.07 0.09 0.13 0.00 0.02
Date 1993-04-08
Origin Time 1020 32.53 +- 17.18
Zone 50
Easting 509.70 +- 101.71 Longitude 117.100
Northing 6706.62 +- 44.51 Latitude -29.771
Depth 5.00 +- 102.87 N
Arrival times = 6 S.D. = 0.462 Seismographs = 3
Nearest recorder = 100.1 km Gap = 223.2 deg Accuracy = C
Effects Code = Imax = 0 Fault =
40 km NW (323 deg) of KOO3
WESTERN AUSTRALIA
270 km NE ( 27 deg) of PERTH
5 km SW (245 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 48.50 0.20 0.77 48.88 -0.38 100.1 202 3.0 3.0
BAL e S 60.20 0.10 0.79 60.22 -0.02 100.1 202 3.0 3.0
MRWA i-P 52.30 0.10 1.24 52.59 -0.29 123.3 299 -30.8 30.8
MRWA e S 67.40 0.20 0.68 66.63 0.77 123.3 299 2.5 2.5
KLB e P 64.50 0.50 0.60 64.22 0.28 211.5 162 -42.2 42.2
KLB e S 88.50 0.30 0.60 87.89 0.61 211.5 162 -40.3 40.3
6 times used, S = 0.462
Deferred Data
MUN e P 72.00 0.50 0.59 69.97 2.03 259.1 198 -42.2 42.2
MUN e S 101.00 0.50 0.53 97.91 3.09 259.1 198 -40.3 40.3
Velocity Ratios
BAL MRWA KLB
BAL 1.73 0.00 1.77
0.03 0.00 0.11
MRWA 0.00 1.76 1.73
0.00 0.02 0.13
KLB 1.77 1.73 1.75
0.11 0.13 0.04
Date 1993-04-08
Origin Time 1241 22.18 +- 0.48
Zone 50
Easting 492.59 +- 5.72 Longitude 116.922
Northing 6568.03 +- 2.35 Latitude -31.021
Depth 3.56 +- 9.09
Arrival times = 11 S.D. = 0.173 Seismographs = 5
Nearest recorder = 50.4 km Gap = 152.9 deg Accuracy = A
Effects Code = Imax = 0 Fault =
5 km W (257 deg) of DOW
WESTERN AUSTRALIA
145 km NE ( 45 deg) of PERTH
22 km NW (333 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? 1.9
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BAL i+P 30.50 0.10 1.33 30.42 0.08 50.4 335 4.4 4.4
BAL i S 36.00 0.10 1.20 36.13 -0.13 50.4 335 4.4 4.4
KLB e P 38.70 0.20 0.77 38.79 -0.09 101.7 128 2.2 2.2
KLB e S 50.40 0.30 0.64 50.30 0.10 101.7 128 2.2 2.2
MUN e P 42.80 0.20 0.75 42.71 0.09 125.9 212 -30.8 30.8
MUN e S 57.00 0.30 0.62 56.97 0.03 125.9 212 1.7 1.7
NWAO e P 54.00 1.00 0.52 54.24 -0.24 213.2 172 -42.2 42.2
NWAO e S 78.00 0.50 0.54 78.16 -0.16 213.2 172 -40.3 40.3
NWAO e SG 81.00 0.50 0.54 81.09 -0.09 213.2 172 1.0 1.0
MRWA i+P 56.10 0.10 0.71 55.73 0.37 218.8 335 -30.8 30.8
MRWA e S 81.00 0.10 0.41 81.33 -0.33 218.8 335 -23.9 23.9
11 times used, S = 0.173
Velocity Ratios
BAL KLB MUN NWAO
BAL 1.66 1.76 1.71 1.79
0.03 0.12 0.08 0.11
KLB 1.76 1.71 0.00 0.00
0.12 0.04 0.00 0.00
MUN 1.71 0.00 1.69 0.00
0.08 0.00 0.03 0.00
NWAO 1.79 0.00 0.00 1.75
0.11 0.00 0.00 0.07
Date 1993-04-08
Origin Time 1438 47.35 +- 44.59
Zone 50
Easting 609.26 +- 238.46 Longitude 118.181
Northing 6249.99 +- 26.83 Latitude -33.885
Depth 5.00 +- 226.44 N
Arrival times = 6 S.D. = 0.258 Seismographs = 4
Nearest recorder = 131.9 km Gap = 243.3 deg Accuracy = B
Effects Code = Imax = 0 Fault =
2 km SW (232 deg) of GNOW
WESTERN AUSTRALIA
306 km SE (135 deg) of PERTH
127 km N ( 13 deg) of ALBANY
18 km E ( 73 deg) of Gnowangerup
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
RKG i-P 68.60 0.10 1.23 68.62 -0.02 131.9 234 -30.8 30.8
RKG e S 84.00 0.30 0.62 83.83 0.17 131.9 234 2.3 2.3
NWAO i+P 69.30 0.10 1.23 69.47 -0.17 138.1 320 -30.8 30.8
NWAO e S 85.50 0.20 0.67 85.52 -0.02 138.1 320 2.2 2.2
KLB e S 113.00 1.00 0.46 112.35 0.65 257.3 351 -40.3 40.3
MUN e P 90.00 0.30 0.39 89.42 0.58 280.5 318 -30.8 30.8
6 times used, S = 0.258
Deferred Data
KLB e P 88.00 0.50 0.59 84.58 3.42 257.3 351 -42.2 42.2
MUN e S 118.50 0.50 0.52 117.24 1.26 280.5 318 -40.3 40.3
Velocity Ratios
RKG NWAO
RKG 1.72 0.00
0.02 0.00
NWAO 0.00 1.74
0.00 0.02
Date 1993-04-11
Origin Time 1542 58.26 +- 276.61
Zone 50
Easting 631.89 +- 911.12 Longitude 118.427
Northing 6243.32 +- 445.19 Latitude -33.942
Depth 5.00 +-2078.99 N
Arrival times = 5 S.D. = 0.274 Seismographs = 3
Nearest recorder = 147.9 km Gap = 255.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
22 km E (110 deg) of GNOW
WESTERN AUSTRALIA
327 km SE (133 deg) of PERTH
128 km NE ( 24 deg) of ALBANY
40 km E ( 92 deg) of Gnowangerup
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.5
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
RKG e P 81.50 0.30 0.68 81.75 -0.25 147.9 241 -30.8 30.8
RKG e S 99.40 0.50 0.56 99.13 0.27 147.9 241 2.1 2.1
NWAO e P 83.30 0.20 0.74 83.19 0.11 158.1 315 -30.8 30.8
NWAO e S 101.70 0.30 0.61 101.91 -0.21 158.1 315 -23.9 23.9
KLB w S 126.00 5.00 0.34 125.52 0.48 268.0 346 -40.3 40.3
5 times used, S = 0.274
Deferred Data
MUN w SG 140.00 2.00 0.42 141.33 -1.33 300.7 315 1.0 1.0
Velocity Ratios
RKG NWAO
RKG 1.77 0.00
0.04 0.00
NWAO 0.00 1.73
0.00 0.03
Date 1993-04-11
Origin Time 1707 17.71 +- 7.58
Zone 50
Easting 597.64 +- 47.02 Longitude 118.053
Northing 6276.23 +- 14.15 Latitude -33.649
Depth 5.00 +- 48.62 N
Arrival times = 7 S.D. = 0.605 Seismographs = 4
Nearest recorder = 110.6 km Gap = 229.8 deg Accuracy = C
Effects Code = Imax = 0 Fault =
25 km NW (333 deg) of GNOC
WESTERN AUSTRALIA
279 km SE (133 deg) of PERTH
151 km N ( 6 deg) of ALBANY
32 km N ( 9 deg) of Gnowangerup
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.5
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
NWAO e P 35.70 0.30 0.70 35.78 -0.08 110.6 316 2.7 2.7
NWAO e S 49.00 0.30 0.63 48.31 0.69 110.6 316 2.7 2.7
RKG w P 40.00 1.00 0.55 40.14 -0.14 140.2 222 -30.8 30.8
RKG e S 56.50 0.30 0.62 56.48 0.02 140.2 222 2.2 2.2
KLB e S 78.00 1.00 0.47 76.92 1.08 229.8 353 -40.3 40.3
KLB e SG 80.50 0.50 0.53 81.20 -0.70 229.8 353 1.3 1.3
MUN e SG 87.00 0.30 0.59 87.68 -0.68 253.2 316 1.2 1.2
7 times used, S = 0.605
Deferred Data
MUN e S 87.00 0.30 0.59 81.85 5.15 253.2 316 -40.3 40.3
Velocity Ratios
NWAO RKG
NWAO 1.74 0.00
0.05 0.00
RKG 0.00 1.74
0.00 0.10
Date 1993-04-12
Origin Time 1322 56.08 +- 6.68
Zone 53
Easting 133.15 +- 28.71 Longitude 131.347
Northing 7160.81 +- 30.34 Latitude -25.625
Depth 5.00 +- 56.83 N
Arrival times = 9 S.D. = 1.615 Seismographs = 4
Nearest recorder = 336.3 km Gap = 157.9 deg Accuracy = D
Effects Code = Imax = 0 Fault =
336 km SW (229 deg) of ASPA
NORTHERN TERRITORY
45 km NW (315 deg) of MULGA PARK HS
44 km SE (134 deg) of AYERS ROCK
Record Dur Sync Unc Resp Seismometer Recorder Pol
ASPA 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 2.5
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
ASPA e P 103.30 0.30 0.63 102.90 0.40 336.3 50 -42.2 42.2
WARB w P 122.00 2.00 0.43 119.95 2.05 477.5 261 -42.2 42.2
WARB e S 165.00 1.00 0.43 167.46 -2.46 477.5 261 -40.3 40.3
WARB e SG 189.00 0.50 0.50 187.98 1.02 477.5 261 0.7 0.7
FORT w P 139.00 2.00 0.41 141.98 -2.98 659.9 208 -42.2 42.2
FORT e S 206.00 1.00 0.42 205.82 0.18 659.9 208 -40.3 40.3
FORT e SG 239.00 1.00 0.42 238.38 0.62 659.9 208 0.4 0.4
WRA e P 145.50 0.50 0.53 146.88 -1.38 700.2 26 -42.2 42.2
WRA e S 215.50 0.50 0.48 214.35 1.15 700.2 26 -40.3 40.3
9 times used, S = 1.615
Deferred Data
ASPA e S 133.30 0.50 0.52 137.77 -4.47 336.3 50 -40.3 40.3
Velocity Ratios
WARB FORT WRA
WARB 1.65 0.00 0.00
0.07 0.00 0.00
FORT 0.00 1.81 0.00
0.00 0.06 0.00
WRA 0.00 0.00 1.78
0.00 0.00 0.02
Date 1993-04-15
Origin Time 0005 28.55 +- 14.69
Zone 51
Easting 294.35 +- 54.42 Longitude 121.082
Northing 8269.88 +- 100.77 Latitude -15.641
Depth 5.00 +- 121.44 N
Arrival times = 7 S.D. = 0.607 Seismographs = 4
Nearest recorder = 625.3 km Gap = 235.4 deg Accuracy = B
Effects Code = Imax = 0 Fault =
605 km NE ( 24 deg) of RP02
WESTERN AUSTRALIA
285 km NW (334 deg) of BROOME
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.3
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBL e P 110.00 0.30 0.60 110.26 -0.26 625.3 191 -42.2 42.2
MBL e S 170.50 0.50 0.49 171.00 -0.50 625.3 191 -40.3 40.3
KNA e P 134.00 2.00 0.40 134.35 -0.35 824.5 91 -42.2 42.2
KNA e S 213.50 2.00 0.36 212.94 0.56 824.5 91 -40.3 40.3
NANU e P 151.00 1.00 0.45 151.50 -0.50 966.4 216 -42.2 42.2
NANU e S 244.00 1.00 0.40 242.79 1.21 966.4 216 -40.3 40.3
WARB e P 192.50 0.50 0.51 192.16 0.34 1302.3 154 -42.2 42.2
7 times used, S = 0.607
Deferred Data
MTN w P 170.00 5.00 0.31 171.27 -1.27 1129.9 75 -42.2 42.2
MTN w S 277.00 5.00 0.28 277.23 -0.23 1129.9 75 -40.3 40.3
WARB e S 318.00 2.00 0.26 313.58 4.42 1302.3 154 -40.3 40.3
Velocity Ratios
MBL KNA NANU
MBL 1.74 0.00 1.79
0.01 0.00 0.10
KNA 0.00 1.75 0.00
0.00 0.05 0.00
NANU 1.79 0.00 1.76
0.10 0.00 0.02
Date 1993-04-16
Origin Time 1739 4.06 +- 65.43
Zone 50
Easting 289.17 +- 156.54 Longitude 114.892
Northing 7113.73 +- 142.45 Latitude -26.080
Depth 5.00 +- 319.41 N
Arrival times = 6 S.D. = 3.435 Seismographs = 4
Nearest recorder = 364.3 km Gap = 206.1 deg Accuracy = D
Effects Code = Imax = 0 Fault =
62 km E ( 76 deg) of LP01
WESTERN AUSTRALIA
657 km N (352 deg) of PERTH
181 km SE (138 deg) of CARNARVON
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MRWA e P 56.00 0.30 0.63 54.23 1.77 364.3 162 -42.2 42.2
MRWA e S 86.40 0.30 0.57 91.60 -5.20 364.3 162 -40.3 40.3
MEEK e S 94.00 0.10 0.70 94.19 -0.19 376.5 100 -40.3 40.3
MEEK e SG 108.50 0.50 0.51 108.07 0.43 376.5 100 0.8 0.8
NANU e S 97.00 2.00 0.38 98.31 -1.31 396.4 9 -40.3 40.3
BAL e S 133.00 1.00 0.43 126.92 6.08 532.1 160 -40.3 40.3
6 times used, S = 3.435
Velocity Ratios
MRWA
MRWA 1.59
0.02
Date 1993-04-23
Origin Time 0858 32.07 +- 0.52
Zone 50
Easting 506.85 +- 4.72 Longitude 117.072
Northing 6592.86 +- 2.61 Latitude -30.797
Depth 1.00 +- 8.26 C
Arrival times = 9 S.D. = 0.195 Seismographs = 5
Nearest recorder = 40.8 km Gap = 174.4 deg Accuracy = A
Effects Code = Imax = 0 Fault =
5 km W (283 deg) of CAS
WESTERN AUSTRALIA
173 km NE ( 43 deg) of PERTH
6 km SW (242 deg) of Cadoux
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.1
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BAL i-P 38.80 0.10 1.36 38.74 0.06 40.8 301 1.8 1.8
BAL e S 43.00 0.30 0.69 43.36 -0.36 40.8 301 1.8 1.8
KLB e P 50.10 0.20 0.76 49.98 0.12 109.8 143 0.7 0.7
KLB i S 62.20 0.20 0.98 62.41 -0.21 109.8 143 0.7 0.7
MUN e P 57.00 0.50 0.62 56.83 0.17 154.5 211 -30.8 30.8
MUN i S 74.70 0.20 0.95 74.76 -0.06 154.5 211 0.5 0.5
MRWA e P 63.50 0.50 0.60 63.23 0.27 203.4 329 -42.2 42.2
MRWA i S 86.40 0.20 0.93 86.45 -0.05 203.4 329 -40.3 40.3
NWAO i S 96.40 0.20 0.51 95.97 0.43 236.5 176 -23.9 23.9
9 times used, S = 0.195
Velocity Ratios
BAL KLB MUN MRWA
BAL 1.62 1.70 1.74 1.76
0.07 0.09 0.09 0.06
KLB 1.70 1.67 0.00 1.81
0.09 0.03 0.00 0.13
MUN 1.74 0.00 1.71 0.00
0.09 0.00 0.04 0.00
MRWA 1.76 1.81 0.00 1.73
0.06 0.13 0.00 0.03
Date 1993-04-23
Origin Time 1018 25.10 +- 629.56
Zone 51
Easting 844.99 +-14552.29 Longitude 126.140
Northing 8973.80 +-27429.77 Latitude -9.270
Depth 5.00 +-39853.58 N
Arrival times = 5 S.D. = 1.481 Seismographs = 3
Nearest recorder = 773.6 km Gap = 345.6 deg Accuracy = D
Effects Code = Imax = 0 Fault =
294 km E ( 70 deg) of KUPT
622 km NW (304 deg) of DARWIN
Place names undefined for this area
Record Dur Sync Unc Resp Seismometer Recorder Pol
ASPA 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KNA e P 126.50 0.50 0.53 124.74 1.76 773.6 158 -42.2 42.2
KNA e S 198.30 0.20 0.57 198.76 -0.46 773.6 158 -40.3 40.3
WB2 e P 211.40 0.50 0.51 210.94 0.46 1486.2 144 -42.2 42.2
ASPA e P 247.80 0.50 0.51 249.94 -2.14 1808.5 153 -42.2 42.2
ASPA e S 417.20 0.50 0.39 416.73 0.47 1808.5 153 -40.3 40.3
5 times used, S = 1.481
Deferred Data
WB2 e S 352.90 1.00 0.32 348.83 4.07 1486.2 144 -40.3 40.3
WARB e P 246.00 1.00 0.45 257.96 -11.96 1875.1 178 -42.2 42.2
WARB e S 417.00 1.00 0.32 430.71 -13.71 1875.1 178 -40.3 40.3
Velocity Ratios
KNA ASPA
KNA 1.71 1.80
0.01 0.02
ASPA 1.80 1.76
0.02 0.01
Date 1993-04-24
Origin Time 1606 15.62 +- 20.31
Zone 50
Easting 775.70 +- 92.00 Longitude 119.643
Northing 7734.73 +- 100.34 Latitude -20.466
Depth 5.00 +- 69.58 N
Arrival times = 6 S.D. = 0.874 Seismographs = 3
Nearest recorder = 79.4 km Gap = 304.5 deg Accuracy = C
Effects Code = Imax = 0 Fault =
77 km N (353 deg) of MBWA
WESTERN AUSTRALIA
112 km E (100 deg) of PORT HEDLAND
79 km N (352 deg) of Marble Bar
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.5
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBL i+P 28.20 0.10 1.29 28.60 -0.40 79.4 165 3.7 3.7
MBL e S 37.70 0.50 0.59 37.60 0.10 79.4 165 3.7 3.7
MEEK e P 106.00 0.50 0.53 105.41 0.59 691.7 188 -42.2 42.2
MEEK e S 174.00 1.00 0.42 172.12 1.88 691.7 188 -40.3 40.3
MEEK e SG 206.00 2.00 0.36 206.71 -0.71 691.7 188 0.5 0.5
WARB e S 230.00 1.00 0.40 228.60 1.40 960.1 132 -40.3 40.3
6 times used, S = 0.874
Deferred Data
NANU e SG 145.00 1.00 0.43 150.15 -5.15 487.0 240 0.6 0.6
Velocity Ratios
MBL MEEK
MBL 1.76 1.75
0.05 0.03
MEEK 1.75 1.75
0.03 0.02
Date 1993-04-27
Origin Time 1155 18.84 +- 3.58
Zone 50
Easting 449.02 +- 38.70 Longitude 116.497
Northing 7307.75 +- 21.02 Latitude -24.343
Depth 5.00 +- 47.46 N
Arrival times = 10 S.D. = 0.570 Seismographs = 7
Nearest recorder = 331.5 km Gap = 219.5 deg Accuracy = B
Effects Code = Imax = 0 Fault =
119 km SW (206 deg) of LP06
WESTERN AUSTRALIA
845 km N ( 4 deg) of PERTH
292 km E ( 79 deg) of CARNARVON
96 km NW (335 deg) of Landor
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 2.8
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MEEK P 65.40 0.10 1.13 65.07 0.33 331.5 140 -42.2 42.2
MBL w P 85.00 1.00 0.49 84.37 0.63 491.4 44 -42.2 42.2
MBL e PG 98.50 0.50 0.55 99.01 -0.51 491.4 44 0.6 0.6
MRWA e P 90.30 0.20 0.66 90.54 -0.24 542.3 185 -42.2 42.2
MRWA e S 144.50 0.50 0.49 143.85 0.65 542.3 185 -40.3 40.3
BAL e P 109.00 1.00 0.46 108.90 0.10 694.2 178 -42.2 42.2
BAL e S 175.50 0.50 0.48 175.82 -0.32 694.2 178 -40.3 40.3
KLB e S 200.00 1.00 0.41 200.74 -0.74 812.6 171 -40.3 40.3
MUN e S 208.00 0.30 0.52 207.86 0.14 846.4 181 -40.3 40.3
COOL e P 127.50 0.50 0.52 128.69 -1.19 857.7 148 -42.2 42.2
10 times used, S = 0.570
Deferred Data
MEEK S 102.00 0.50 0.74 99.50 2.50 331.5 140 -40.3 40.3
MBL e SG 153.00 1.00 0.43 154.60 -1.60 491.4 44 0.6 0.6
MUN e P 126.00 0.50 0.52 127.30 -1.30 846.4 181 -42.2 42.2
COOL e S 207.00 0.50 0.47 210.28 -3.28 857.7 148 -40.3 40.3
WARB w P 150.00 1.00 0.45 151.37 -1.37 1045.2 103 -42.2 42.2
WARB e S 247.00 1.00 0.40 249.75 -2.75 1045.2 103 -40.3 40.3
Velocity Ratios
MRWA BAL
MRWA 1.76 1.66
0.01 0.17
BAL 1.66 1.74
0.17 0.03
Date 1993-04-28
Origin Time 1450 31.69 +- 10.60
Zone 51
Easting 121.94 +- 120.96 Longitude 119.434
Northing 8025.89 +- 510.62 Latitude -17.822
Depth 5.00 +- 648.93 N
Arrival times = 7 S.D. = 0.624 Seismographs = 4
Nearest recorder = 372.3 km Gap = 316.3 deg Accuracy = C
Effects Code = Imax = 0 Fault =
319 km N ( 13 deg) of RP02
WESTERN AUSTRALIA
289 km N ( 18 deg) of PORT HEDLAND
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.9
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBL e P 82.90 0.20 0.68 82.82 0.08 372.3 173 -42.2 42.2
MBL e S 120.80 0.30 0.57 120.89 -0.09 372.3 173 -40.3 40.3
NANU e P 118.00 0.50 0.54 118.52 -0.52 667.7 217 -42.2 42.2
NANU e S 184.00 2.00 0.37 183.05 0.95 667.7 217 -40.3 40.3
MEEK e P 157.50 0.50 0.51 156.52 0.98 981.5 184 -42.2 42.2
MRWA e P 196.00 0.50 0.51 196.70 -0.70 1314.0 194 -42.2 42.2
MRWA e S 318.70 0.50 0.46 319.16 -0.46 1314.0 194 -40.3 40.3
7 times used, S = 0.624
Deferred Data
MEEK e S 252.00 0.50 0.46 249.20 2.80 981.5 184 -40.3 40.3
WARB w P 190.00 2.00 0.39 181.43 8.57 1187.6 142 -42.2 42.2
WARB e S 298.00 1.00 0.40 292.57 5.43 1187.6 142 -40.3 40.3
Velocity Ratios
MBL NANU MRWA
MBL 1.74 1.80 1.75
0.01 0.10 0.02
NANU 1.80 1.76 1.73
0.10 0.03 0.05
MRWA 1.75 1.73 1.75
0.02 0.05 0.01