Data Report
Bulletin / 1987
Contributed by CUPWA
Start
Date 1987-01-30
Origin Time 0350 33.79 +- 0.61
Zone 50
Easting 497.95 +- 4.03 Longitude 116.978
Northing 6478.70 +- 4.93 Latitude -31.827
Depth 4.35 +- 12.56
Arrival times = 9 S.D. = 0.271 Seismographs = 5
Nearest recorder = 74.7 km Gap = 98.3 deg Accuracy = A
Effects Code = Imax = 0 Fault =
33 km SE (141 deg) of YORK
WESTERN AUSTRALIA
108 km E ( 83 deg) of PERTH
22 km S (188 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 2.7
PHASE INFORMATION
DATA USED
BAL i-P 55.90 0.10 1.23 55.92 -0.02 137.7 349 -30.8 30.8
BAL e S 71.30 0.40 0.59 71.86 -0.56 137.7 349 1.9 1.9
KLB i+P 46.70 0.10 1.29 46.62 0.08 78.5 70 3.4 3.4
KLB e S 55.00 0.50 0.59 55.52 -0.52 78.5 70 3.4 3.4
MRWA PMP 51.90 0.10 0.71 79.57 -27.67 304.1 341 -31.8 31.8
MRWA i-P 77.20 0.20 0.99 76.76 0.44 304.1 341 -42.2 42.2
MUN i-P 46.00 0.10 1.29 46.00 -0.00 74.7 256 3.5 3.5
MUN e S 54.20 0.40 0.62 54.47 -0.27 74.7 256 3.5 3.5
NWAO e P 54.00 0.50 0.63 54.02 -0.02 124.2 168 -30.8 30.8
NWAO e S 68.00 0.50 0.56 68.13 -0.13 124.2 168 2.1 2.1
NWAO e PG 74.00 0.10 0.82 54.07 19.93 124.2 168 2.1 2.1
Velocity Ratios
MUN KLB NWAO BAL
MUN 1.67 0.00 0.00 1.73
0.05 0.00 0.00 0.12
KLB 0.00 1.64 0.00 1.77
0.00 0.05 0.00 0.14
NWAO 0.00 0.00 1.69 0.00
0.00 0.00 0.07 0.00
BAL 1.73 1.77 0.00 1.70
0.12 0.14 0.00 0.03
Start
Date 1987-02-02
Origin Time 1825 38.53 +- 0.59
Zone 50
Easting 497.51 +- 3.55 Longitude 116.974
Northing 6479.34 +- 4.31 Latitude -31.821
Depth 1.00 +- 15.02 C
Arrival times = 9 S.D. = 0.208 Seismographs = 5
Nearest recorder = 74.4 km Gap = 97.6 deg Accuracy = A
Effects Code = Imax = 0 Fault =
32 km SE (141 deg) of YORK
WESTERN AUSTRALIA
107 km E ( 83 deg) of PERTH
22 km S (189 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 2.8
PHASE INFORMATION
DATA USED
BAL i-P 60.80 0.10 1.23 60.84 -0.04 137.0 349 -30.8 30.8
BAL e S 76.00 0.10 0.77 76.38 -0.38 137.0 349 0.5 0.5
KLB i+P 51.50 0.10 1.29 51.38 0.12 78.7 71 0.9 0.9
KLB e S 60.00 1.00 0.51 60.29 -0.29 78.7 71 0.9 0.9
MRWA PMP 51.90 0.10 0.71 84.50 -32.60 303.4 341 -31.8 31.8
MRWA i-P 82.10 0.20 0.99 81.78 0.32 303.4 341 -42.2 42.2
MRWA S 118.50 0.50 0.74 113.96 4.54 303.4 341 -40.3 40.3
MUN i-P 50.70 0.10 1.29 50.68 0.02 74.4 256 1.0 1.0
MUN i S 59.10 0.30 0.93 59.10 0.00 74.4 256 1.0 1.0
NWAO e P 58.60 0.20 0.75 58.91 -0.31 124.9 168 0.6 0.6
NWAO e S 73.00 0.50 0.56 73.04 -0.04 124.9 168 0.6 0.6
NWAO e PG 74.00 0.10 0.82 58.91 15.09 124.9 168 0.6 0.6
RKG e P 82.50 0.40 0.60 81.94 0.56 304.7 179 -42.2 42.2
Velocity Ratios
MUN KLB NWAO BAL
MUN 1.69 0.00 1.76 1.67
0.04 0.00 0.17 0.07
KLB 0.00 1.66 0.00 1.72
0.00 0.09 0.00 0.16
NWAO 1.76 0.00 1.72 0.00
0.17 0.00 0.04 0.00
BAL 1.67 1.72 0.00 1.68
0.07 0.16 0.00 0.01
Start
Date 1987-02-09
Origin Time 0758 22.24 +- 4.44
Zone 50
Easting 508.68 +- 36.76 Longitude 117.091
Northing 6502.96 +- 33.93 Latitude -31.608
Depth 12.30 +- 76.09
Arrival times = 12 S.D. = 3.451 Seismographs = 6
Nearest recorder = 63.4 km Gap = 106.8 deg Accuracy = B
Effects Code = Imax = 0 Fault =
31 km E ( 93 deg) of YORK
WESTERN AUSTRALIA
124 km E ( 72 deg) of PERTH
8 km E ( 73 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 3.2
PHASE INFORMATION
DATA USED
BAL i PG 41.00 0.10 1.24 41.42 -0.42 116.9 341 6.2 6.2
BAL i PN 42.10 0.20 0.76 41.70 0.40 116.9 341 -42.2 42.2
BAL e S 54.00 0.20 0.68 54.67 -0.67 116.9 341 -23.9 23.9
KLB i P 32.50 0.10 1.31 32.79 -0.29 63.4 88 11.2 11.2
KLB e S 40.00 0.20 0.72 40.11 -0.11 63.4 88 11.2 11.2
MEKA e P 97.20 0.20 0.65 96.60 0.60 570.8 14 -42.2 42.2
MRWA e P 62.40 0.10 0.80 62.02 0.38 285.0 338 -42.2 42.2
MRWA PG 66.20 0.20 1.00 68.78 -2.58 285.0 338 2.5 2.5
MRWA e S 93.00 1.00 0.46 91.77 1.23 285.0 338 -40.3 40.3
MUN i-P 37.00 0.10 1.27 37.45 -0.45 93.1 243 -30.8 30.8
MUN e S 47.50 0.20 0.70 48.20 -0.70 93.1 243 7.7 7.7
NWAO i P 45.10 0.10 1.22 44.96 0.14 146.7 174 -30.8 30.8
NWAO e P 58.60 0.20 0.75 44.96 13.64 146.7 174 -30.8 30.8
NWAO e S 62.60 0.20 0.67 62.20 0.40 146.7 174 -23.9 23.9
RKG P 62.00 1.00 0.51 67.27 -5.27 328.4 181 -42.2 42.2
RKG e P 69.50 0.10 0.79 67.27 2.23 328.4 181 -42.2 42.2
RKG PG 73.30 0.10 1.13 75.85 -2.55 328.4 181 2.2 2.2
Velocity Ratios
KLB MUN
KLB 1.73 1.67
0.04 0.17
MUN 1.67 1.71
0.17 0.03
Start
Date 1987-06-04
Origin Time 0333 8.37 +- 21.01
Zone 51
Easting 448.20 +- 98.87 Longitude 122.448
Northing 6397.64 +- 64.43 Latitude -32.557
Depth 10.26 +- 84.79
Arrival times = 9 S.D. = 2.715 Seismographs = 5
Nearest recorder = 225.4 km Gap = 269.9 deg Accuracy = B
Effects Code = Imax = 0 Fault =
142 km S (158 deg) of KMBL
WESTERN AUSTRALIA
625 km E ( 98 deg) of PERTH
74 km SE (122 deg) of NORSEMAN
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.5
PHASE INFORMATION
DATA USED
KLGA e P 42.60 0.10 0.82 41.18 1.42 225.4 334 -42.2 42.2
KLGA e PG 43.70 0.10 0.82 45.18 -1.48 225.4 334 2.7 2.7
KLGA e S 70.00 0.50 0.54 65.74 4.26 225.4 334 -40.3 40.3
MEKA e S 181.50 1.00 0.41 178.37 3.13 760.3 329 -40.3 40.3
MEKA e SG 213.00 1.00 0.41 218.42 -5.42 760.3 329 0.8 0.8
MRWA e P 103.00 0.10 0.73 101.04 1.96 720.5 299 -42.2 42.2
MRWA e S 170.00 1.00 0.42 169.95 0.05 720.5 299 -40.3 40.3
MRWA e SG 202.00 1.00 0.42 207.42 -5.42 720.5 299 0.8 0.8
MUN e P 87.50 0.10 0.75 85.52 1.98 592.2 274 -42.2 42.2
MUN e S 148.00 1.00 0.42 142.93 5.07 592.2 274 -40.3 40.3
RKG e P 81.30 0.10 0.75 80.72 0.58 552.5 244 -42.2 42.2
RKG e S 138.00 1.00 0.43 134.58 3.42 552.5 244 -40.3 40.3
RKG e SG 157.00 1.00 0.43 161.02 -4.02 552.5 244 1.1 1.1
WBN e P 116.10 0.20 0.63 112.66 3.44 816.4 30 -42.2 42.2
WBN e S 199.00 0.10 0.65 190.18 8.82 816.4 30 -40.3 40.3
WBN e SG 235.00 1.00 0.41 233.93 1.07 816.4 30 0.8 0.8
Velocity Ratios
RKG
RKG 1.78
0.02
Start
Date 1987-06-11
Origin Time 1218 42.65 +- 2.41
Zone 50
Easting 549.14 +- 25.94 Longitude 117.516
Northing 6547.48 +- 16.67 Latitude -31.206
Depth 10.01 +- 38.26
Arrival times = 12 S.D. = 1.905 Seismographs = 8
Nearest recorder = 48.7 km Gap = 105.3 deg Accuracy = A
Effects Code = Imax = 0 Fault =
48 km NW (331 deg) of KLB
WESTERN AUSTRALIA
178 km NE ( 63 deg) of PERTH
13 km E (102 deg) of WYALKATCHEM
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.5
PHASE INFORMATION
DATA USED
BAL i+P 58.70 0.10 1.26 59.29 -0.59 101.9 310 -30.8 30.8
KLB i-P 50.60 0.10 1.34 50.76 -0.16 48.7 151 12.0 12.0
KLGA e P 94.30 0.30 0.63 94.03 0.27 378.8 82 -42.2 42.2
KLGA PG 103.60 0.20 0.97 104.47 -0.87 378.8 82 1.6 1.6
KLGA SN 133.00 0.20 0.58 132.35 0.65 378.8 82 -40.3 40.3
MRWA i P 70.10 0.10 1.16 80.19 -10.09 264.4 326 -42.2 42.2
MRWA e P 80.30 0.10 0.81 80.19 0.11 264.4 326 -42.2 42.2
MRWA i PG 82.90 0.10 1.16 85.81 -2.91 264.4 326 2.2 2.2
MRWA i SG 113.20 0.30 0.75 115.74 -2.54 264.4 326 2.2 2.2
MUN i-P 66.40 0.10 1.22 66.12 0.28 150.7 234 -30.8 30.8
MUN e S 83.50 0.30 0.62 83.88 -0.38 150.7 234 -23.9 23.9
NWAO e PG 72.20 0.10 0.83 74.11 -1.91 192.6 187 3.1 3.1
NWAO e SG 94.00 0.50 0.46 95.93 -1.93 192.6 187 3.1 3.1
NWAO e SN 94.00 0.50 0.36 93.13 0.87 192.6 187 -40.3 40.3
RKG e P 95.10 0.20 0.68 93.68 1.42 375.9 187 -42.2 42.2
RKG PG 100.00 0.20 0.97 104.00 -4.00 375.9 187 1.6 1.6
RKG e S 133.30 0.30 0.57 131.73 1.57 375.9 187 -40.3 40.3
RKG e SG 144.00 0.20 0.61 146.53 -2.53 375.9 187 1.6 1.6
WA4 e P 54.30 0.20 0.79 54.58 -0.28 72.4 337 8.1 8.1
WA4 e S 60.00 0.40 0.62 62.86 -2.86 72.4 337 8.1 8.1
Velocity Ratios
MUN
MUN 1.72
0.02
EXPECTED ARRIVAL TIMES
Code Dist Delta P PG S SG
KLB 48.7 0.44 50.8 50.8 56.4 56.4
Start
Date 1987-06-11
Origin Time 1711 53.21 +- 10.91
Zone 50
Easting 549.74 +- 198.39 Longitude 117.522
Northing 6548.48 +- 142.38 Latitude -31.197
Depth 3.08 +- 158.03
Arrival times = 10 S.D. = 6.537 Seismographs = 6
Nearest recorder = 49.3 km Gap = 186.9 deg Accuracy = A
Effects Code = Imax = 0 Fault =
24 km NW (325 deg) of KBN
WESTERN AUSTRALIA
179 km NE ( 63 deg) of PERTH
41 km S (174 deg) of Koorda
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.2
PHASE INFORMATION
DATA USED
BAL i P 69.90 0.10 1.26 69.82 0.08 101.7 309 1.9 1.9
BAL e S 81.20 0.30 0.64 81.33 -0.13 101.7 309 1.9 1.9
KLB i P 61.10 0.10 1.34 61.27 -0.17 49.3 152 3.9 3.9
KLB i S 67.00 0.20 1.05 66.86 0.14 49.3 152 3.9 3.9
MEKA e S 181.50 1.00 0.41 173.31 8.19 517.1 11 -40.3 40.3
MRWA e P 91.20 0.10 0.81 91.46 -0.26 263.9 325 -42.2 42.2
MRWA e PMP 93.80 0.20 0.42 93.53 0.27 263.9 325 -32.2 32.2
MUN i-P 77.30 0.10 1.22 77.42 -0.12 151.8 234 -30.8 30.8
MUN e S 94.70 0.30 0.61 95.16 -0.46 151.8 234 1.3 1.3
NWAO i-P 83.10 0.10 1.19 82.96 0.14 193.7 187 -42.2 42.2
NWAO e S 105.10 0.40 0.57 105.16 -0.06 193.7 187 -40.3 40.3
RKG e P 81.30 0.10 0.75 105.13 -23.83 377.0 187 -42.2 42.2
RKG e S 138.00 1.00 0.43 143.76 -5.76 377.0 187 -40.3 40.3
RKG e S 144.00 0.40 0.53 143.76 0.24 377.0 187 -40.3 40.3
Velocity Ratios
KLB BAL NWAO RKG
KLB 1.75 1.61 1.73 3.51
0.05 0.10 0.04 0.10
BAL 1.61 1.68 1.81 0.00
0.10 0.03 0.08 0.00
NWAO 1.73 1.81 1.74 0.00
0.04 0.08 0.02 0.00
RKG 3.51 0.00 0.00 3.02
0.10 0.00 0.00 0.05
Start
Date 1987-07-05
Origin Time 0528 39.91 +- 3.88
Zone 50
Easting 419.35 +- 49.75 Longitude 116.148
Northing 6479.51 +- 12.36 Latitude -31.817
Depth 23.06 +- 28.74
Arrival times = 9 S.D. = 0.867 Seismographs = 5
Nearest recorder = 18.8 km Gap = 194.7 deg Accuracy = C
Effects Code = Imax = 0 Fault =
7 km S (193 deg) of PIG4
WESTERN AUSTRALIA
32 km NE ( 62 deg) of PERTH
9 km N (347 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 2.7
PHASE INFORMATION
DATA USED
BAL i-PG 63.20 0.10 1.22 61.74 1.46 144.3 21 2.1 30.9
BAL e SG 77.60 0.20 0.67 78.53 -0.93 144.3 21 2.3 24.0
KLB e P 62.50 0.10 0.85 62.92 -0.42 154.8 81 -30.3 42.2
KLB e S 78.70 0.20 0.67 80.26 -1.56 154.8 81 -33.5 40.3
KLGA S 157.60 0.30 0.78 156.84 0.76 518.5 77 -33.5 40.3
KLGA SG 172.50 0.30 0.78 173.01 -0.51 518.5 77 0.5 23.9
MRWA e PG 83.00 0.10 0.80 81.92 1.08 288.4 357 0.9 30.9
MRWA SMP 86.00 0.50 0.33 84.82 1.18 288.4 357 -56.4 31.1
MRWA i SG 114.30 0.30 0.83 114.91 -0.61 288.4 357 1.0 23.9
MUN i+P 44.60 0.10 1.44 44.66 -0.06 18.8 162 45.0 52.6
MUN e S 47.70 0.20 0.79 48.04 -0.34 18.8 162 47.6 52.0
NWAO i+PG 64.50 0.10 1.21 63.91 0.59 159.9 140 1.8 30.9
NWAO e SG 82.80 0.20 0.66 82.45 0.35 159.9 140 2.0 24.0
RKG e P 87.50 0.10 0.80 82.37 5.13 315.6 165 -30.3 42.2
RKG e PG 91.00 0.20 0.69 85.72 5.28 315.6 165 0.8 30.9
RKG e SG 124.50 0.40 0.54 121.77 2.73 315.6 165 0.9 23.9
WBN e P 190.50 0.30 0.56 189.12 1.38 1198.3 60 -30.3 42.2
Velocity Ratios
MUN
MUN 1.66
0.08
Start
Date 1987-07-08
Origin Time 1038 5.13 +- 13.60
Zone 51
Easting 429.11 +- 49.61 Longitude 122.246
Northing 6409.00 +- 45.00 Latitude -32.454
Depth 18.74 +- 95.09
Arrival times = 10 S.D. = 2.463 Seismographs = 6
Nearest recorder = 207.2 km Gap = 210.2 deg Accuracy = B
Effects Code = Imax = 0 Fault =
124 km S (164 deg) of KMBL
WESTERN AUSTRALIA
606 km E ( 97 deg) of PERTH
52 km SE (123 deg) of NORSEMAN
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 4.7
PHASE INFORMATION
DATA USED
ASPA e P 190.30 0.20 0.61 192.02 -1.72 1507.1 52 -42.2 42.2
BAL e P 78.00 0.30 0.60 78.08 -0.08 565.2 289 -42.2 42.2
KLGA e P 37.00 0.10 0.83 34.81 2.19 207.2 338 -42.2 42.2
KLGA e PG 39.00 1.00 0.52 39.08 -0.08 207.2 338 5.3 5.3
KLGA SG 172.50 0.30 0.78 62.62 109.88 207.2 338 5.3 5.3
MBL i-P 164.10 0.20 0.87 163.81 0.29 1274.2 348 -42.2 42.2
MEKA e P 101.00 0.20 0.64 99.34 1.66 740.8 330 -42.2 42.2
MRWA e P 95.00 0.20 0.64 94.18 0.82 698.3 299 -42.2 42.2
MRWA e S 166.00 1.00 0.42 160.51 5.49 698.3 299 -40.3 40.3
MRWA SG 194.00 1.00 0.60 198.09 -4.09 698.3 299 1.6 1.6
MUN e P 79.80 0.20 0.65 78.95 0.85 572.4 273 -42.2 42.2
MUN e PG 98.00 0.50 0.54 98.55 -0.55 572.4 273 1.9 1.9
MUN e S 140.00 1.00 0.43 134.00 6.00 572.4 273 -40.3 40.3
MUN SG 160.00 1.00 0.61 163.33 -3.33 572.4 273 1.9 1.9
RKG i-P 76.70 0.10 1.08 75.10 1.60 540.5 242 -42.2 42.2
RKG e PG 91.00 1.00 0.48 93.36 -2.36 540.5 242 2.0 2.0
RKG e S 133.00 1.00 0.43 127.30 5.70 540.5 242 -40.3 40.3
WARB i+P 110.40 0.10 1.03 108.38 2.02 815.6 32 -42.2 42.2
WARB e S 190.00 1.00 0.41 185.23 4.77 815.6 32 -40.3 40.3
Velocity Ratios
WARB
WARB 1.76
0.01
Start
Date 1987-09-10
Origin Time 2350 45.02 +- 0.47
Zone 50
Easting 468.80 +- 4.13 Longitude 116.672
Northing 6524.93 +- 2.92 Latitude -31.410
Depth 5.43 +- 10.40
Arrival times = 8 S.D. = 0.122 Seismographs = 4
Nearest recorder = 76.8 km Gap = 147.5 deg Accuracy = B
Effects Code = Imax = 0 Fault =
20 km SE (120 deg) of PIG3
WESTERN AUSTRALIA
98 km NE ( 53 deg) of PERTH
19 km SW (229 deg) of Goomalling
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.6
PHASE INFORMATION
DATA USED
BAL i P 59.70 0.10 1.27 59.58 0.12 89.1 2 3.7 3.7
BAL e S 69.50 0.10 0.80 69.67 -0.17 89.1 2 3.7 3.7
KLB i P 62.20 0.10 1.25 62.22 -0.02 105.3 101 3.1 3.1
KLB e S 74.20 0.30 0.63 74.15 0.05 105.3 101 3.1 3.1
MRWA e P 83.20 0.10 0.81 81.49 1.71 251.4 344 -42.2 42.2
MRWA e S 111.50 0.40 0.55 108.71 2.79 251.4 344 -40.3 40.3
MUN i+P 57.50 0.10 1.29 57.58 -0.08 76.8 214 4.2 4.2
MUN e S 66.50 0.30 0.65 66.30 0.20 76.8 214 4.2 4.2
NWAO e P 72.30 0.20 0.73 72.40 -0.10 176.3 162 -42.2 42.2
NWAO e S 93.00 0.50 0.55 92.88 0.12 176.3 162 -40.3 40.3
Velocity Ratios
MUN BAL KLB NWAO
MUN 1.72 0.00 0.00 1.79
0.04 0.00 0.00 0.09
BAL 0.00 1.67 0.00 1.87
0.00 0.02 0.00 0.09
KLB 0.00 0.00 1.70 1.86
0.00 0.00 0.03 0.14
NWAO 1.79 1.87 1.86 1.76
0.09 0.09 0.14 0.03
Start
Date 1987-09-25
Origin Time 0918 31.03 +- 1.60
Zone 50
Easting 579.38 +- 9.26 Longitude 117.829
Northing 6601.99 +- 4.88 Latitude -30.712
Depth 0.09 +- 6.73
Arrival times = 11 S.D. = 0.348 Seismographs = 5
Nearest recorder = 0.0 km Gap = 231.0 deg Accuracy = B
Effects Code = Imax = 0 Fault =
11 km N (345 deg) of BENC
WESTERN AUSTRALIA
233 km NE ( 54 deg) of PERTH
12 km N (350 deg) of Bencubbin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.8
PHASE INFORMATION
DATA USED
BAL i-P 48.80 0.10 1.25 48.68 0.12 108.2 275 0.2 0.2
BAL e S 61.00 0.40 0.60 60.91 0.09 108.2 275 0.2 0.2
KLB e P 47.00 0.30 0.71 46.97 0.03 97.7 183 0.2 0.2
KLB e S 57.90 0.30 0.64 58.02 -0.12 97.7 183 0.2 0.2
KLGA e P 80.00 0.50 0.57 79.52 0.48 345.9 91 -42.2 42.2
KLGA e SG 126.00 1.00 0.45 126.58 -0.58 345.9 91 0.1 0.1
MEKA e P 95.00 0.50 0.56 93.24 1.76 459.2 8 -42.2 42.2
MRWA e P 66.30 0.10 0.82 66.98 -0.68 242.3 312 -42.2 42.2
MRWA e PMP 69.30 0.10 0.49 68.63 0.67 242.3 312 -32.5 32.5
MRWA e S 93.80 0.10 0.73 93.75 0.05 242.3 312 -40.3 40.3
MRWA e SG 97.20 0.50 0.53 97.95 -0.75 242.3 312 0.1 0.1
MUN e P 60.40 0.30 0.66 62.89 -2.49 208.5 227 -42.2 42.2
MUN e S 87.00 0.50 0.54 86.63 0.37 208.5 227 -40.3 40.3
NWAO e P 68.00 0.40 0.62 68.14 -0.14 251.8 192 -42.2 42.2
NWAO e SG 100.50 0.10 0.73 100.60 -0.10 251.8 192 0.1 0.1
RKG e P 91.30 0.30 0.62 90.23 1.07 434.5 189 -42.2 42.2
RKG e SG 150.00 0.10 0.69 151.05 -1.05 434.5 189 0.1 0.1
Velocity Ratios
KLB BAL MRWA
KLB 1.68 0.00 1.86
0.05 0.00 0.06
BAL 0.00 1.69 1.87
0.00 0.03 0.05
MRWA 1.86 1.87 1.78
0.06 0.05 0.01
Start
Date 1987-10-09
Origin Time 0358 48.32 +- 1.97
Zone 51
Easting 328.41 +- 20.51 Longitude 121.204
Northing 6578.39 +- 35.19 Latitude -30.915
Depth 6.80 +- 25.10
Arrival times = 14 S.D. = 1.324 Seismographs = 8
Nearest recorder = 31.4 km Gap = 177.5 deg Accuracy = B
Effects Code = Imax = 0 Fault =
2 km NE ( 22 deg) of KLFM
WESTERN AUSTRALIA
522 km E ( 79 deg) of PERTH
31 km SW (234 deg) of KALGOORLIE
6 km NE ( 54 deg) of Coolgardie
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 4.5
PHASE INFORMATION
DATA USED
ASP i+P 232.70 0.20 0.87 235.03 -2.33 1494.9 60 -42.2 42.2
BAL i+P 107.30 0.10 1.10 106.56 0.74 432.7 273 -42.2 42.2
BAL i PG 119.50 0.20 0.90 118.91 0.59 432.7 273 0.9 0.9
BAL S 152.00 1.00 0.63 149.92 2.08 432.7 273 -40.3 40.3
BAL i SG 170.30 0.40 0.65 167.85 2.45 432.7 273 0.9 0.9
CMS i+P 331.60 0.30 0.80 336.39 -4.79 2347.8 97 -55.2 55.1
KLB i+P 96.50 0.10 1.13 94.98 1.52 336.9 256 -42.2 42.2
KLB i PG 102.20 0.10 1.13 103.29 -1.09 336.9 256 1.2 1.2
KLB SG 143.50 1.00 0.64 141.40 2.10 336.9 256 1.2 1.2
KLGA i+P 53.60 0.10 1.38 53.57 0.03 31.4 45 12.9 12.9
KNA i+P 275.50 0.30 0.80 277.83 -2.33 1849.2 26 -42.2 42.2
KNA e S 456.00 1.00 0.40 448.11 7.89 1849.2 26 -40.3 40.3
MEKA e P 122.00 0.50 0.55 120.01 1.99 543.7 330 -42.2 42.2
MRWA i+P 120.00 0.10 1.08 119.22 0.78 537.3 289 -42.2 42.2
MUN i+P 114.70 0.10 1.09 113.51 1.19 490.2 254 -42.2 42.2
MUN PG 129.00 0.20 0.95 128.29 0.71 490.2 254 0.8 0.8
MUN S 164.50 1.00 0.62 162.02 2.48 490.2 254 -40.3 40.3
MUN i SG 183.80 0.20 0.85 183.74 0.06 490.2 254 0.8 0.8
NWAO i+P 107.80 0.10 1.10 107.12 0.68 437.3 238 -42.2 42.2
NWAO S 152.50 1.00 0.63 150.89 1.61 437.3 238 -40.3 40.3
RKG e P 123.90 0.20 0.65 122.59 1.31 565.2 222 -42.2 42.2
RKG PG 143.50 1.00 0.68 140.53 2.97 565.2 222 0.7 0.7
RKG S 181.00 1.00 0.61 177.83 3.17 565.2 222 -40.3 40.3
RKG SG 204.00 1.00 0.61 204.47 -0.47 565.2 222 0.7 0.7
WARB i+P 145.40 0.20 0.91 144.58 0.82 746.9 46 -42.2 42.2
WARB S 216.00 1.00 0.59 216.11 -0.11 746.9 46 -40.3 40.3
WB2 e P 267.70 0.10 0.70 272.13 -4.43 1801.9 50 -42.2 42.2
WB2 e S 436.80 1.00 0.40 438.19 -1.39 1801.9 50 -40.3 40.3
Velocity Ratios
BAL NWAO MUN RKG
BAL 1.76 0.00 0.00 1.75
0.02 0.00 0.00 0.15
NWAO 0.00 1.75 0.00 1.77
0.00 0.02 0.00 0.16
MUN 0.00 0.00 1.75 0.00
0.00 0.00 0.02 0.00
RKG 1.75 1.77 0.00 1.76
0.15 0.16 0.00 0.02