Data Report
Bulletin / 97-01
Contributed by CUPWA
Date 1997-01-01
Origin Time 2103 18.36 +- 0.82
Zone 50
Easting 508.81 +- 6.00 Longitude 117.092
Northing 6593.56 +- 8.47 Latitude -30.791
Depth 6.30 +- 13.00
Arrival times = 8 S.D. = 0.198 Seismographs = 4
Nearest recorder = 42.2 km Gap = 205.7 deg Accuracy = A
Effects Code = Imax = 0 Fault =
4 km NW (298 deg) of CAS
WESTERN AUSTRALIA
175 km NE ( 43 deg) of PERTH
4 km SW (237 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 1.7
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BAL e P 25.40 0.20 0.82 25.32 0.08 42.2 298 8.9 8.9
BAL e S 30.00 0.30 0.68 30.15 -0.15 42.2 298 8.9 8.9
KLB e P2 36.50 0.30 0.42 36.33 0.17 109.2 144 -30.8 30.8
KLB e S 48.50 0.30 0.63 48.58 -0.08 109.2 144 3.5 3.5
KLB e SN 51.60 0.30 0.42 51.96 -0.36 109.2 144 -40.3 40.3
MUN e P 43.10 0.20 0.74 42.90 0.20 156.1 212 -30.8 30.8
MUN e S 61.20 0.30 0.61 61.37 -0.17 156.1 212 -23.9 23.9
NWAO e S2 82.20 0.30 0.33 81.81 0.39 237.1 176 -23.9 23.9
8 times used, S = 0.198
Deferred Data
KLB w P 34.00 3.00 0.45 36.21 -2.21 109.2 144 3.5 3.5
Velocity Ratios
BAL MUN
BAL 1.65 1.76
0.09 0.08
MUN 1.76 1.73
0.08 0.03
Date 1997-01-09
Origin Time 1510 51.61 +- 0.31
Zone 50
Easting 562.71 +- 2.59 Longitude 117.660
Northing 6518.34 +- 2.47 Latitude -31.468
Depth 1.90 +- 7.25
Arrival times = 10 S.D. = 0.157 Seismographs = 5
Nearest recorder = 16.7 km Gap = 178.5 deg Accuracy = A
Effects Code = Imax = 0 Fault =
1 km NE ( 41 deg) of KBS
WESTERN AUSTRALIA
180 km E ( 73 deg) of PERTH
19 km N (342 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 2.1
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB i-P 54.40 0.10 1.45 54.35 0.05 16.7 145 7.5 7.5
KLB i S 56.20 0.10 1.30 56.25 -0.05 16.7 145 7.5 7.5
BAL i-P 73.20 0.10 1.23 73.12 0.08 131.9 316 -30.8 30.8
BAL i S 88.00 0.10 1.11 88.04 -0.04 131.9 316 1.0 1.0
MUN i P 75.30 0.10 1.22 75.48 -0.18 148.7 247 -30.8 30.8
MUN i S 92.80 0.10 1.10 92.70 0.10 148.7 247 0.8 0.8
NWAO e P 78.40 0.30 0.68 77.99 0.41 166.6 193 -30.8 30.8
NWAO e S 97.40 0.30 0.61 97.64 -0.24 166.6 193 0.7 0.7
MRWA e P2 96.00 1.00 0.30 96.14 -0.14 296.2 327 -30.8 30.8
MRWA e SMS 130.90 0.20 0.35 131.19 -0.29 296.2 327 -25.5 25.5
10 times used, S = 0.157
Deferred Data
MRWA e S 126.00 0.50 0.52 125.36 0.64 296.2 327 -40.3 40.3
Velocity Ratios
KLB BAL MUN NWAO
KLB 1.64 1.69 1.75 1.72
0.10 0.03 0.03 0.05
BAL 1.69 1.69 0.00 0.00
0.03 0.01 0.00 0.00
MUN 1.75 0.00 1.74 0.00
0.03 0.00 0.01 0.00
NWAO 1.72 0.00 0.00 1.71
0.05 0.00 0.00 0.03
Date 1997-01-11
Origin Time 0750 27.84 +- 26.63
Zone 51
Easting 234.72 +- 193.05 Longitude 120.584
Northing 8954.35 +- 553.35 Latitude -9.451
Depth 5.00 +- 789.40 N
Arrival times = 6 S.D. = 1.127 Seismographs = 4
Nearest recorder = 1616.3 km Gap = 317.8 deg Accuracy = D
Effects Code = Imax = 0 Fault =
39 km NE ( 52 deg) of WSI
Place names undefined for this area
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
GIRL e P 230.40 0.10 0.70 229.38 1.02 1616.3 204 -42.2 42.2
MEEK e P 266.00 0.10 0.70 265.66 0.34 1915.9 185 -42.2 42.2
MEEK e S 441.10 0.10 0.63 442.07 -0.97 1915.9 185 -40.3 40.3
WARB e P 270.00 0.20 0.61 270.90 -0.90 1959.4 161 -42.2 42.2
WARB e S 453.70 1.00 0.40 451.21 2.49 1959.4 161 -40.3 40.3
MRWA e P 304.80 0.10 0.70 305.50 -0.70 2241.6 191 -49.6 49.2
6 times used, S = 1.127
Deferred Data
GIRL e S 382.70 0.10 0.63 378.92 3.78 1616.3 204 -40.3 40.3
MRWA e S 506.00 0.10 0.63 518.74 -12.74 2241.6 191 -44.6 45.9
MUN e P 338.70 0.50 0.51 332.32 6.38 2531.8 189 -57.4 56.9
MUN e S 569.00 0.10 0.63 576.96 -7.96 2531.8 189 -54.4 53.9
Velocity Ratios
MEEK WARB
MEEK 1.74 0.00
0.00 0.00
WARB 0.00 1.76
0.00 0.01
Date 1997-01-16
Origin Time 0543 24.80 +- 7.00
Zone 50
Easting 254.20 +- 57.99 Longitude 114.580
Northing 7321.60 +- 46.58 Latitude -24.199
Depth 5.00 +- 38.81 N
Arrival times = 8 S.D. = 1.202 Seismographs = 4
Nearest recorder = 176.0 km Gap = 182.2 deg Accuracy = D
Effects Code = Imax = 0 Fault =
87 km N (345 deg) of LP02
WESTERN AUSTRALIA
868 km N (351 deg) of PERTH
119 km NE ( 51 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 2.5
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
GIRL e P 52.00 0.10 0.84 52.18 -0.18 176.0 348 -42.2 42.2
GIRL e PG 53.70 0.20 0.73 53.52 0.18 176.0 348 1.7 1.7
MEEK e P 92.20 0.50 0.55 89.88 2.32 487.4 124 -42.2 42.2
MEEK e P2 95.40 0.50 0.33 95.87 -0.47 487.4 124 -30.8 30.8
MEEK e S 139.00 0.50 0.50 138.29 0.71 487.4 124 -40.3 40.3
MEEK e SG 159.00 0.50 0.50 159.45 -0.45 487.4 124 0.7 0.7
MRWA e S 155.70 0.50 0.49 156.40 -0.70 573.6 166 -40.3 40.3
WARB e P 178.60 0.50 0.51 180.69 -2.09 1238.4 102 -42.2 42.2
8 times used, S = 1.202
Deferred Data
GIRL e PMP 54.30 0.20 0.44 52.90 1.40 176.0 348 -34.1 34.1
GIRL e S 76.10 1.00 0.48 72.66 3.44 176.0 348 -40.3 40.3
GIRL e SMS 76.10 1.00 0.27 74.33 1.77 176.0 348 -28.9 28.9
MRWA e P 101.00 0.50 0.54 100.28 0.72 573.6 166 -42.2 42.2
WARB e S 286.70 0.50 0.46 296.39 -9.69 1238.4 102 -40.3 40.3
Velocity Ratios
MEEK
MEEK 1.69
0.02
Date 1997-01-16
Origin Time 2234 7.72 +- 0.54
Zone 50
Easting 526.99 +- 4.00 Longitude 117.283
Northing 6548.90 +- 3.05 Latitude -31.194
Depth 6.74 +- 8.64
Arrival times = 9 S.D. = 0.177 Seismographs = 4
Nearest recorder = 63.3 km Gap = 164.2 deg Accuracy = B
Effects Code = F Imax = 0 Fault =
26 km W (280 deg) of WYAL
WESTERN AUSTRALIA
160 km NE ( 59 deg) of PERTH
24 km E ( 88 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 18.00 0.50 0.66 18.11 -0.11 63.3 134 6.4 6.4
KLB e S 25.30 0.20 0.72 25.31 -0.01 63.3 134 6.4 6.4
BAL e P 21.90 0.20 0.78 21.68 0.22 85.2 319 4.7 4.7
BAL e PMP 23.70 0.50 0.39 23.98 -0.28 85.2 319 -44.3 44.3
BAL e S 31.20 0.20 0.70 31.35 -0.15 85.2 319 4.7 4.7
BAL SMS 36.00 0.30 0.51 36.20 -0.20 85.2 319 -41.6 41.6
MUN e P 29.30 0.10 0.86 29.13 0.17 134.0 229 -30.8 30.8
MUN e S 44.70 0.10 0.77 44.80 -0.10 134.0 229 3.0 3.0
MRWA e S2 75.00 0.30 0.33 74.78 0.22 251.5 330 -23.9 23.9
9 times used, S = 0.177
Velocity Ratios
KLB BAL MUN
KLB 1.71 0.00 1.72
0.11 0.00 0.12
BAL 0.00 1.66 1.82
0.00 0.04 0.12
MUN 1.72 1.82 1.71
0.12 0.12 0.01
Date 1997-01-19
Origin Time 0928 15.82 +- 0.33
Zone 50
Easting 526.69 +- 2.71 Longitude 117.280
Northing 6547.95 +- 1.65 Latitude -31.202
Depth 6.35 +- 6.29
Arrival times = 9 S.D. = 0.140 Seismographs = 5
Nearest recorder = 62.8 km Gap = 163.2 deg Accuracy = A
Effects Code = Imax = 0 Fault =
27 km W (277 deg) of WYAL
WESTERN AUSTRALIA
159 km NE ( 59 deg) of PERTH
24 km E ( 91 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 2.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB e P 26.10 0.10 0.92 26.12 -0.02 62.8 133 6.0 6.0
KLB e S 33.30 0.10 0.83 33.27 0.03 62.8 133 6.0 6.0
BAL i P 30.00 0.10 1.28 29.85 0.15 85.8 320 4.4 4.4
BAL i S 39.40 0.10 1.15 39.58 -0.18 85.8 320 4.4 4.4
MUN i P 37.20 0.10 1.23 37.14 0.06 133.2 229 -30.8 30.8
MUN i S 52.70 0.10 1.11 52.66 0.04 133.2 229 2.8 2.8
NWAO e S 66.50 0.30 0.60 66.66 -0.16 191.2 181 -40.3 40.3
NWAO e SG 68.40 0.30 0.60 68.67 -0.27 191.2 181 2.0 2.0
MRWA e S2 83.20 0.50 0.29 83.09 0.11 252.2 330 -23.9 23.9
9 times used, S = 0.140
Deferred Data
KLB e SMS 37.00 0.20 0.40 40.02 -3.02 62.8 133 -49.4 49.4
BAL e SMS 44.00 0.10 0.45 44.48 -0.48 85.8 320 -41.6 41.6
MRWA e S 80.50 0.50 0.53 79.51 0.99 252.2 330 -40.3 40.3
Velocity Ratios
KLB BAL MUN
KLB 1.70 1.56 1.75
0.03 0.14 0.05
BAL 1.56 1.66 1.85
0.14 0.02 0.08
MUN 1.75 1.85 1.72
0.05 0.08 0.01
Date 1997-01-22
Origin Time 1504 28.30 +- 4.72
Zone 49
Easting 607.15 +- 27.15 Longitude 112.051
Northing 7383.08 +- 20.96 Latitude -23.659
Depth 17.20 +- 29.72
Arrival times = 8 S.D. = 0.425 Seismographs = 3
Nearest recorder = 250.4 km Gap = 275.2 deg Accuracy = D
Effects Code = Imax = 0 Fault =
250 km SW (242 deg) of GIRL
WESTERN AUSTRALIA
992 km NW (337 deg) of PERTH
213 km NW (309 deg) of CARNARVON
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 2.8
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
GIRL e P 63.50 0.20 0.71 63.34 0.16 250.4 63 -42.2 42.2
GIRL e PG 69.20 0.50 0.59 69.24 -0.04 250.4 63 4.0 4.0
GIRL e S2 93.10 0.50 0.29 93.87 -0.77 250.4 63 -23.9 23.9
GIRL e SG 97.80 1.00 0.46 97.63 0.17 250.4 63 4.0 4.0
MRWA e P 122.00 0.30 0.59 121.51 0.49 731.3 148 -42.2 42.2
MRWA e S 190.70 0.10 0.66 190.92 -0.22 731.3 148 -40.3 40.3
MEEK e P 122.10 0.20 0.64 122.71 -0.61 741.0 117 -42.2 42.2
MEEK e S 193.50 0.30 0.53 193.00 0.50 741.0 117 -40.3 40.3
8 times used, S = 0.425
Deferred Data
BAL w S 229.00 2.00 0.36 226.08 2.92 898.3 150 -40.3 40.3
Velocity Ratios
MRWA MEEK
MRWA 1.73 0.00
0.01 0.00
MEEK 0.00 1.76
0.00 0.01
Date 1997-01-23
Origin Time 2345 56.34 +- 251.14
Zone 53
Easting 397.63 +-2410.52 Longitude 134.022
Northing 7807.61 +- 189.54 Latitude -19.825
Depth 5.00 +-3870.86 N
Arrival times = 5 S.D. = 0.329 Seismographs = 3
Nearest recorder = 37.0 km Gap = 162.8 deg Accuracy = D
Effects Code = Imax = 0 Fault =
7 km NE ( 44 deg) of TCCY
NORTHERN TERRITORY
885 km SE (158 deg) of DARWIN
25 km SW (220 deg) of TENNANT CREEK
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 -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
WB2 e P 62.50 0.20 0.83 62.44 0.06 37.0 111 8.3 8.3
KNA e P 149.00 1.00 0.46 149.27 -0.27 718.0 308 -42.2 42.2
KNA e S 219.00 1.00 0.42 218.31 0.69 718.0 308 -40.3 40.3
WARB e P 187.60 0.10 0.71 187.76 -0.16 1036.1 225 -42.2 42.2
WARB e S 285.70 0.30 0.51 285.32 0.38 1036.1 225 -40.3 40.3
5 times used, S = 0.329
Deferred Data
ASPA e P 116.20 0.20 0.67 114.16 2.04 427.3 181 -42.2 42.2
ASPA e S 155.50 0.20 0.60 157.19 -1.69 427.3 181 -40.3 40.3
MEEK e P 270.10 0.30 0.56 276.05 -5.95 1766.2 241 -42.2 42.2
MEEK e S 435.90 0.50 0.46 439.05 -3.15 1766.2 241 -40.3 40.3
WOOL e P 270.00 2.00 0.38 276.30 -6.30 1768.5 222 -42.2 42.2
WOOL e S 437.00 1.00 0.40 439.49 -2.49 1768.5 222 -40.3 40.3
Velocity Ratios
KNA WARB
KNA 1.76 1.73
0.03 0.09
WARB 1.73 1.75
0.09 0.00
Date 1997-01-26
Origin Time 2153 25.43 +- 1.79
Zone 50
Easting 400.97 +- 26.07 Longitude 115.974
Northing 6691.05 +- 8.42 Latitude -29.907
Depth 8.59 +- 22.82
Arrival times = 7 S.D. = 0.312 Seismographs = 3
Nearest recorder = 76.4 km Gap = 187.1 deg Accuracy = B
Effects Code = F Imax = 3 Fault =
76 km S (181 deg) of MRWA
WESTERN AUSTRALIA
227 km N ( 3 deg) of PERTH
182 km SE (134 deg) of GERALDTON
47 km W (248 deg) of Latham
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 1.7
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MRWA e P 38.20 0.10 0.90 37.97 0.23 76.4 1 6.6 6.6
MRWA i P2 38.70 0.10 0.77 38.61 0.09 76.4 1 -30.8 30.8
MRWA i S 46.50 0.10 1.16 46.67 -0.17 76.4 1 6.6 6.6
BAL i+P 42.90 0.10 1.26 42.58 0.32 104.8 138 4.8 4.8
BAL i S 54.30 0.10 1.13 54.47 -0.17 104.8 138 4.8 4.8
MUN e S 83.30 1.00 0.47 84.17 -0.87 230.6 174 -40.3 40.3
MUN e SG 89.00 0.50 0.53 89.19 -0.19 230.6 174 2.2 2.2
7 times used, S = 0.312
Velocity Ratios
MRWA BAL
MRWA 1.65 1.66
0.02 0.12
BAL 1.66 1.65
0.12 0.02