Data Report
Bulletin / 1995-07
Contributed by CUPWA
Date 1995-07-01
Origin Time 1843 31.71 +- 2.08
Zone 51
Easting 437.99 +- 15.43 Longitude 122.416
Northing 8066.92 +- 18.42 Latitude -17.483
Depth 36.50 +- 286.38
Arrival times = 11 S.D. = 0.741 Seismographs = 6
Nearest recorder = 489.3 km Gap = 212.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
348 km W (280 deg) of FITZ
WESTERN AUSTRALIA
57 km N ( 20 deg) of BROOME
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 3.2
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBL e P 94.50 0.50 0.55 94.21 0.29 489.3 213 0.0 42.2
MBL e S 139.00 2.00 0.38 140.59 -1.59 489.3 213 0.0 40.3
WARB e P 163.80 0.20 0.61 162.98 0.82 1057.7 156 0.0 42.2
WARB e S 260.10 0.30 0.51 260.31 -0.21 1057.7 156 0.0 40.3
MEEK e P 167.20 0.20 0.61 166.57 0.63 1087.4 200 0.0 42.2
MEEK e S 267.10 0.30 0.51 266.57 0.53 1087.4 200 0.0 40.3
KAKA e P 180.90 0.30 0.56 180.62 0.28 1204.0 65 0.0 42.2
KAKA e S 290.70 0.50 0.46 291.04 -0.34 1204.0 65 0.0 40.3
WRA e P 191.30 0.50 0.51 191.44 -0.14 1293.2 104 0.0 42.2
WRA e S 309.30 1.00 0.40 309.86 -0.56 1293.2 104 0.0 40.3
MRWA e P 210.00 0.50 0.51 211.33 -1.33 1457.7 205 0.0 42.2
11 times used, S = 0.741
Deferred Data
MRWA e S 340.00 0.50 0.46 344.49 -4.49 1457.7 205 0.0 40.3
KLB e P 232.00 1.00 0.44 232.54 -0.54 1633.2 195 0.0 42.2
KLB e S 379.50 1.00 0.40 381.43 -1.93 1633.2 195 0.0 40.3
MUN e S 400.30 1.00 0.40 400.90 -0.60 1725.7 200 0.0 40.3
Velocity Ratios
MBL WARB MEEK KAKA WRA
MBL 1.71 1.75 1.76 1.76 1.76
0.05 0.05 0.05 0.05 0.05
WARB 1.75 1.73 0.00 1.79 1.79
0.05 0.00 0.00 0.10 0.10
MEEK 1.76 0.00 1.74 1.72 1.75
0.05 0.00 0.00 0.13 0.11
KAKA 1.76 1.79 1.72 1.74 0.00
0.05 0.10 0.13 0.01 0.00
WRA 1.76 1.79 1.75 0.00 1.74
0.05 0.10 0.11 0.00 0.01
Date 1995-07-03
Origin Time 1249 42.30 +- 0.53
Zone 50
Easting 504.09 +- 3.39 Longitude 117.043
Northing 6497.95 +- 3.49 Latitude -31.654
Depth 5.21 +- 9.12
Arrival times = 12 S.D. = 0.231 Seismographs = 5
Nearest recorder = 68.3 km Gap = 99.9 deg Accuracy = A
Effects Code = Imax = 0 Fault =
6 km N (347 deg) of ME3
WESTERN AUSTRALIA
118 km E ( 74 deg) of PERTH
4 km SE (130 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 1.7
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB e P 53.40 0.10 0.91 53.48 -0.08 68.3 84 4.6 4.6
KLB e S 61.40 0.10 0.82 61.24 0.16 68.3 84 4.6 4.6
MUN e P 56.50 0.20 0.78 56.49 0.01 86.8 245 3.6 3.6
MUN e S 66.50 0.30 0.65 66.33 0.17 86.8 245 3.6 3.6
BAL e P 62.00 1.00 0.55 61.92 0.08 120.4 344 -30.8 30.8
BAL e PN 63.40 0.30 0.49 62.95 0.45 120.4 344 -42.2 42.2
BAL e S 75.30 0.30 0.63 75.58 -0.28 120.4 344 2.6 2.6
BAL e SN 78.00 0.20 0.45 78.44 -0.44 120.4 344 -40.3 40.3
NWAO e P 64.70 0.30 0.69 64.98 -0.28 142.2 172 -30.8 30.8
NWAO e S 81.60 0.30 0.62 81.62 -0.02 142.2 172 2.2 2.2
MRWA e S 114.00 0.50 0.52 113.73 0.27 288.0 339 -40.3 40.3
MRWA e S2 119.00 1.00 0.25 118.74 0.26 288.0 339 -23.9 23.9
12 times used, S = 0.231
Deferred Data
NWAO e PG 66.30 0.50 0.62 65.52 0.78 142.2 172 2.2 2.2
Velocity Ratios
KLB MUN BAL NWAO
KLB 1.72 0.00 0.00 1.79
0.02 0.00 0.00 0.10
MUN 0.00 1.70 0.00 1.84
0.00 0.05 0.00 0.20
BAL 0.00 0.00 1.68 0.00
0.00 0.00 0.11 0.00
NWAO 1.79 1.84 0.00 1.75
0.10 0.20 0.00 0.04
Date 1995-07-04
Origin Time 0639 20.19 +- 2.30
Zone 50
Easting 537.29 +- 25.65 Longitude 117.396
Northing 6422.52 +- 12.57 Latitude -32.333
Depth 13.05 +- 53.06
Arrival times = 7 S.D. = 0.111 Seismographs = 4
Nearest recorder = 67.5 km Gap = 170.3 deg Accuracy = A
Effects Code = Imax = 0 Fault =
35 km S (179 deg) of QUAI
WESTERN AUSTRALIA
299 km N (351 deg) of ALBANY
152 km E (107 deg) of PERTH
37 km E ( 89 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 1.2
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
NWAO e P 31.30 0.20 0.79 31.41 -0.11 67.5 192 11.2 11.2
NWAO e S 39.30 0.30 0.66 39.19 0.11 67.5 192 11.2 11.2
KLB e P 34.70 1.00 0.56 34.78 -0.08 89.1 22 -30.8 30.8
KLB e S 45.20 0.50 0.58 45.08 0.12 89.1 22 8.5 8.5
MUN e P 39.00 0.30 0.70 38.92 0.08 118.7 289 -30.8 30.8
MUN e S 53.00 0.30 0.63 52.99 0.01 118.7 289 -23.9 23.9
BAL e SG 76.00 2.00 0.41 76.19 -0.19 202.3 341 3.8 3.8
7 times used, S = 0.111
Deferred Data
MUN e SN 56.00 0.30 0.42 54.57 1.43 118.7 289 -40.3 40.3
BAL w S 76.00 2.00 0.42 72.17 3.83 202.3 341 -40.3 40.3
Velocity Ratios
NWAO KLB MUN
NWAO 1.72 0.00 0.00
0.06 0.00 0.00
KLB 0.00 1.72 0.00
0.00 0.16 0.00
MUN 0.00 0.00 1.74
0.00 0.00 0.04
Date 1995-07-07
Origin Time 0928 41.68 +- 7.91
Zone 50
Easting 557.17 +- 33.17 Longitude 117.624
Northing 6161.51 +- 55.92 Latitude -34.687
Depth 5.00 +- 38.57 N
Arrival times = 8 S.D. = 1.068 Seismographs = 4
Nearest recorder = 57.7 km Gap = 280.7 deg Accuracy = C
Effects Code = Imax = 0 Fault =
57 km E (103 deg) of RKG
WESTERN AUSTRALIA
346 km SE (152 deg) of PERTH
41 km NW (327 deg) of ALBANY
8 km SW (214 deg) of Mt Barker
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 50.90 0.10 1.32 51.14 -0.24 57.7 282 5.2 5.2
RKG i S 57.90 0.10 1.19 57.70 0.20 57.7 282 5.2 5.2
NWAO e PG 76.50 1.00 0.52 74.07 2.43 198.5 349 1.5 1.5
NWAO e S 92.00 1.00 0.47 94.30 -2.30 198.5 349 -40.3 40.3
MUN e S 121.00 1.00 0.45 121.54 -0.54 327.9 336 -40.3 40.3
MUN e S2 127.00 2.00 0.22 128.21 -1.21 327.9 336 -23.9 23.9
KLB e S 125.00 2.00 0.39 124.81 0.19 343.4 2 -40.3 40.3
KLB e SG 137.00 1.00 0.45 136.55 0.45 343.4 2 0.9 0.9
8 times used, S = 1.068
Velocity Ratios
RKG
RKG 1.76
0.03
Date 1995-07-14
Origin Time 1928 14.57 +- 6.89
Zone 51
Easting 521.01 +- 21.86 Longitude 123.256
Northing 5297.65 +- 196.34 Latitude -42.473
Depth 5.00 +- 266.37 N
Arrival times = 11 S.D. = 0.470 Seismographs = 10
Nearest recorder = 1032.7 km Gap = 306.5 deg Accuracy = C
Effects Code = Imax = 0 Fault =
1025 km S (165 deg) of RAVT
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 ML 3.8
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
RKG e P 145.40 0.10 0.71 145.57 -0.17 1032.7 326 -42.2 42.2
NWAO e P 164.40 0.20 0.61 164.02 0.38 1185.3 331 -42.2 42.2
WOOL e P 175.60 0.50 0.51 174.56 1.04 1272.4 353 -42.2 42.2
KLB e P 178.00 0.10 0.70 178.23 -0.23 1302.8 336 -42.2 42.2
MUN e P 180.70 0.10 0.70 180.60 0.10 1322.5 329 -42.2 42.2
FORT e P 185.90 0.30 0.56 185.74 0.16 1365.1 19 -42.2 42.2
BAL e P 195.00 0.10 0.70 195.04 -0.04 1441.8 334 -42.2 42.2
MRWA e P 215.80 0.10 0.70 215.50 0.30 1611.1 333 -42.2 42.2
MEEK e P 238.20 0.30 0.56 239.27 -1.07 1807.4 345 -42.2 42.2
MEEK e S 405.90 0.50 0.46 405.96 -0.06 1807.4 345 -40.3 40.3
WARB e S 411.50 1.00 0.40 411.46 0.04 1833.6 10 -40.3 40.3
11 times used, S = 0.470
Deferred Data
RKG e S 246.40 0.50 0.46 242.83 3.57 1032.7 326 -40.3 40.3
NWAO e S 280.70 0.20 0.55 274.94 5.76 1185.3 331 -40.3 40.3
WOOL i S 294.90 0.20 0.78 293.29 1.61 1272.4 353 -40.3 40.3
KLB e S 302.70 0.10 0.63 299.69 3.01 1302.8 336 -40.3 40.3
MUN e S 308.50 0.10 0.63 303.82 4.68 1322.5 329 -40.3 40.3
FORT e S 315.60 0.50 0.46 312.77 2.83 1365.1 19 -40.3 40.3
BAL e S 331.50 0.10 0.63 328.95 2.55 1441.8 334 -40.3 40.3
MRWA e S 368.90 0.10 0.63 364.59 4.31 1611.1 333 -40.3 40.3
WARB e P 240.10 0.50 0.51 242.42 -2.32 1833.6 10 -42.2 42.2
Velocity Ratios
MEEK
MEEK 1.75
0.00
Date 1995-07-15
Origin Time 0222 31.40 +- 1.91
Zone 50
Easting 359.81 +- 18.04 Longitude 115.546
Northing 6673.92 +- 6.72 Latitude -30.058
Depth 5.00 +- 19.14 N
Arrival times = 9 S.D. = 0.392 Seismographs = 5
Nearest recorder = 102.8 km Gap = 221.4 deg Accuracy = C
Effects Code = Imax = 0 Fault =
102 km SW (204 deg) of MRWA
WESTERN AUSTRALIA
212 km N (352 deg) of PERTH
169 km SE (148 deg) of GERALDTON
37 km SE (135 deg) of Eneabba
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
MRWA i P 48.20 0.10 1.26 48.18 0.02 102.8 25 3.0 3.0
MRWA i S 59.90 0.10 1.13 59.82 0.08 102.8 25 3.0 3.0
BAL i P 52.10 0.10 1.23 51.99 0.11 127.1 119 -30.8 30.8
MUN i P 64.30 0.10 1.17 64.37 -0.07 222.1 163 -42.2 42.2
MUN e S 89.30 0.10 0.74 88.98 0.32 222.1 163 -40.3 40.3
MEEK e P 95.00 0.20 0.66 96.03 -1.03 483.7 39 -42.2 42.2
MEEK e S 145.00 0.30 0.55 144.10 0.90 483.7 39 -40.3 40.3
WOOL e S 167.80 2.00 0.37 168.35 -0.55 599.0 102 -40.3 40.3
WOOL e SG 196.50 0.50 0.49 196.88 -0.38 599.0 102 0.5 0.5
9 times used, S = 0.392
Deferred Data
BAL e S 67.50 0.10 0.78 66.55 0.95 127.1 119 2.4 2.4
KLB e PG 73.80 0.50 0.59 75.71 -1.91 271.6 129 1.1 1.1
KLB e S 97.80 0.30 0.58 99.41 -1.61 271.6 129 -40.3 40.3
KLB e SG 105.00 0.30 0.58 106.43 -1.43 271.6 129 1.1 1.1
Velocity Ratios
MRWA MUN MEEK
MRWA 1.70 1.83 1.82
0.02 0.04 0.02
MUN 1.83 1.76 1.81
0.04 0.01 0.03
MEEK 1.82 1.81 1.79
0.02 0.03 0.01
Date 1995-07-15
Origin Time 0331 22.26 +- 5.65
Zone 50
Easting 357.09 +- 31.29 Longitude 115.518
Northing 6674.54 +- 18.41 Latitude -30.052
Depth 5.00 +- 46.97 N
Arrival times = 6 S.D. = 0.200 Seismographs = 3
Nearest recorder = 103.4 km Gap = 223.5 deg Accuracy = C
Effects Code = Imax = 0 Fault =
103 km SW (206 deg) of MRWA
WESTERN AUSTRALIA
213 km N (351 deg) of PERTH
167 km SE (149 deg) of GERALDTON
35 km SE (137 deg) of Eneabba
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
MRWA i P 39.20 0.10 1.26 39.14 0.06 103.4 26 2.9 2.9
MRWA e S 50.90 0.10 0.79 50.85 0.05 103.4 26 2.9 2.9
BAL i P 43.00 0.10 1.23 43.22 -0.22 129.8 118 -30.8 30.8
BAL e S 58.30 0.10 0.78 58.15 0.15 129.8 118 2.3 2.3
MUN e P 55.30 0.10 0.82 55.39 -0.09 223.5 163 -42.2 42.2
MUN e S 80.50 0.10 0.74 80.13 0.37 223.5 163 -40.3 40.3
6 times used, S = 0.200
Deferred Data
KLB e P 66.00 0.10 0.81 61.52 4.48 274.1 129 -42.2 42.2
KLB e S 89.00 0.10 0.73 90.80 -1.80 274.1 129 -40.3 40.3
Velocity Ratios
MRWA BAL MUN
MRWA 1.69 1.95 1.84
0.02 0.16 0.04
BAL 1.95 1.74 1.80
0.16 0.01 0.05
MUN 1.84 1.80 1.76
0.04 0.05 0.01
Date 1995-07-16
Origin Time 0923 13.21 +- 14.04
Zone 50
Easting 434.14 +- 36.36 Longitude 116.291
Northing 6298.93 +- 66.38 Latitude -33.447
Depth 5.00 +- 88.54 N
Arrival times = 6 S.D. = 0.328 Seismographs = 3
Nearest recorder = 105.1 km Gap = 300.4 deg Accuracy = C
Effects Code = Imax = 0 Fault =
68 km W (284 deg) of BEAU
WESTERN AUSTRALIA
171 km S (166 deg) of PERTH
143 km NE ( 48 deg) of AUGUSTA
16 km SE (123 deg) of Collie
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
NWAO e P 30.00 0.20 0.76 30.37 -0.37 105.1 56 2.9 2.9
NWAO i S 42.40 0.50 0.82 42.27 0.13 105.1 56 2.9 2.9
MUN e P 39.10 0.10 0.85 38.82 0.28 163.0 357 -30.8 30.8
MUN i S 57.80 1.00 0.69 58.10 -0.30 163.0 357 -23.9 23.9
KLB e P2 50.50 0.50 0.35 50.68 -0.18 247.6 34 -30.8 30.8
KLB e S 76.60 1.00 0.46 76.18 0.42 247.6 34 -40.3 40.3
6 times used, S = 0.328
Deferred Data
KLB e SG 80.50 1.00 0.46 81.63 -1.13 247.6 34 1.2 1.2
MRWA e P 77.00 0.10 0.77 76.11 0.89 469.6 356 -42.2 42.2
Velocity Ratios
NWAO MUN
NWAO 1.74 0.00
0.05 0.00
MUN 0.00 1.72
0.00 0.05
Date 1995-07-22
Origin Time 2318 52.56 +- 651.24
Zone 50
Easting 617.19 +-3258.73 Longitude 118.267
Northing 6250.32 +- 428.39 Latitude -33.881
Depth 5.00 +-3606.59 N
Arrival times = 5 S.D. = 0.111 Seismographs = 2
Nearest recorder = 138.7 km Gap = 278.5 deg Accuracy = D
Effects Code = Imax = 0 Fault =
1 km E ( 94 deg) of GNOB
WESTERN AUSTRALIA
311 km SE (134 deg) of PERTH
129 km N ( 16 deg) of ALBANY
25 km E ( 78 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 1.8
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
RKG S-P 16.20 0.10 1.23 16.13 0.07 138.7 236 0.0 0.0
RKG i P 74.70 0.10 1.23 74.77 -0.07 138.7 236 -30.8 30.8
RKG i S 90.90 0.10 1.10 90.90 0.00 138.7 236 2.2 2.2
NWAO i P 75.50 0.10 1.22 75.36 0.14 143.0 317 -30.8 30.8
NWAO e S 91.90 0.10 0.77 92.08 -0.18 143.0 317 2.1 2.1
5 times used, S = 0.111
Deferred Data
MUN e P 91.00 0.10 0.80 93.20 -2.20 285.5 317 -42.2 42.2
MUN e S 129.00 0.10 0.72 123.50 5.50 285.5 317 -40.3 40.3
Velocity Ratios
RKG NWAO
RKG 1.73 0.00
0.01 0.00
NWAO 0.00 1.71
0.00 0.01