Data Report
Bulletin / 1991 OCT-DEC
Contributed by CUPWA
Start
Date 1991-10-02
Origin Time 0628 4.71 +- 0.98
Zone 50
Easting 503.92 +- 4.41 Longitude 117.041
Northing 6498.88 +- 4.86 Latitude -31.645
Depth 5.00 +- 23.29 N
Arrival times = 8 S.D. = 0.204 Seismographs = 6
Nearest recorder = 33.1 km Gap = 100.7 deg Accuracy = A
Effects Code = Imax = 0 Fault =
33 km SE (147 deg) of GOO
WESTERN AUSTRALIA
118 km E ( 74 deg) of PERTH
3 km SE (119 deg) of Meckering
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 1.9
PHASE INFORMATION
DATA USED
BAL e P 24.00 0.20 0.76 24.21 -0.21 119.4 344 2.5 2.5
BAL e S 37.50 0.20 0.68 37.73 -0.23 119.4 344 2.5 2.5
GOO S-P 4.00 0.50 1.00 3.80 0.20 33.1 327 0.0 0.0
KLB e P 16.00 0.10 0.91 15.90 0.10 68.4 85 4.4 4.4
KLB e S 23.70 0.10 0.82 23.66 0.04 68.4 85 4.4 4.4
MRWA e S 76.50 1.00 0.46 75.98 0.52 287.1 339 -40.3 40.3
MRWA SMS 81.00 0.50 0.42 81.65 -0.65 287.1 339 -25.5 25.5
MUN e S 28.90 0.20 0.70 28.80 0.10 87.1 244 3.5 3.5
NWAO e S 44.20 0.20 0.67 44.29 -0.09 143.2 172 2.1 2.1
Velocity Ratios
KLB BAL
KLB 1.68 1.72
0.02 0.11
BAL 1.72 1.70
0.11 0.03
Start
Date 1991-10-03
Origin Time 1329 33.03 +- 0.80
Zone 50
Easting 497.83 +- 4.26 Longitude 116.977
Northing 6493.34 +- 5.44 Latitude -31.695
Depth 5.00 +- 24.96 N
Arrival times = 7 S.D. = 0.165 Seismographs = 4
Nearest recorder = 75.1 km Gap = 101.6 deg Accuracy = A
Effects Code = Imax = 0 Fault =
29 km NE ( 42 deg) of YORK
WESTERN AUSTRALIA
110 km E ( 75 deg) of PERTH
8 km SW (203 deg) of Meckering
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.7
PHASE INFORMATION
DATA USED
BAL e P 53.30 0.20 0.75 53.09 0.21 123.4 347 -30.8 30.8
BAL e S 67.10 0.20 0.68 67.14 -0.04 123.4 347 2.5 2.5
KLB e P 45.10 0.10 0.90 45.32 -0.22 75.1 81 4.0 4.0
KLB e S 54.00 0.20 0.71 53.83 0.17 75.1 81 4.0 4.0
MRWA e SMS 110.30 0.30 0.29 110.76 -0.46 290.2 340 -25.5 25.5
MUN e P 45.90 0.10 0.90 45.98 -0.08 79.2 246 3.8 3.8
MUN e S 55.00 0.20 0.70 54.97 0.03 79.2 246 3.8 3.8
NWAO e S 71.50 0.50 0.56 71.35 0.15 138.6 170 2.2 2.2
Velocity Ratios
KLB MUN BAL
KLB 1.74 0.00 1.60
0.03 0.00 0.11
MUN 0.00 1.71 1.64
0.00 0.03 0.13
BAL 1.60 1.64 1.68
0.11 0.13 0.03
Start
Date 1991-10-04
Origin Time 1030 27.12 +- 2.97
Zone 50
Easting 556.31 +- 25.21 Longitude 117.607
Northing 6281.25 +- 10.33 Latitude -33.607
Depth 5.00 +- 19.42 N
Arrival times = 9 S.D. = 0.461 Seismographs = 5
Nearest recorder = 83.1 km Gap = 158.3 deg Accuracy = B
Effects Code = Imax = 0 Fault =
55 km E ( 90 deg) of BEAU
WESTERN AUSTRALIA
247 km SE (139 deg) of PERTH
156 km N (351 deg) of ALBANY
10 km NE ( 33 deg) of Katanning
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.9
PHASE INFORMATION
DATA USED
BAL e SG 119.00 1.00 0.45 121.94 -2.94 343.2 345 0.9 0.9
COOL e S 132.00 2.00 0.38 132.72 -0.72 450.0 48 -40.3 40.3
COOL e SG 147.50 0.50 0.50 151.43 -3.93 450.0 48 0.7 0.7
KLB e P 61.00 0.30 0.66 60.31 0.69 223.9 3 -42.2 42.2
KLB e S 85.00 0.50 0.54 85.08 -0.08 223.9 3 -40.3 40.3
KLB e SG 87.90 0.20 0.64 88.98 -1.08 223.9 3 1.4 1.4
MRWA e SG 161.80 0.30 0.55 168.00 -6.20 510.0 342 0.6 0.6
MUN w P 60.60 2.00 0.46 60.20 0.40 223.0 323 -42.2 42.2
MUN e S 85.40 0.30 0.59 84.90 0.50 223.0 323 -40.3 40.3
NWAO e P 40.50 0.50 0.65 40.69 -0.19 83.1 335 3.6 3.6
NWAO e S 49.60 0.20 0.70 50.11 -0.51 83.1 335 3.6 3.6
RKG e P 46.50 0.30 0.70 46.72 -0.22 120.1 206 -30.8 30.8
RKG e S 60.30 0.50 0.57 60.33 -0.03 120.1 206 2.5 2.5
Velocity Ratios
NWAO RKG MUN KLB
NWAO 1.68 0.00 0.00 1.73
0.08 0.00 0.00 0.11
RKG 0.00 1.71 0.00 1.70
0.00 0.05 0.00 0.15
MUN 0.00 0.00 1.74 0.00
0.00 0.00 0.12 0.00
KLB 1.73 1.70 0.00 1.71
0.11 0.15 0.00 0.03
Start
Date 1991-10-04
Origin Time 1746 2.50 +- 13.35
Zone 50
Easting 217.13 +- 56.95 Longitude 114.126
Northing 6908.80 +- 25.50 Latitude -27.916
Depth 5.00 +- 86.08 N
Arrival times = 8 S.D. = 0.714 Seismographs = 5
Nearest recorder = 233.1 km Gap = 216.8 deg Accuracy = C
Effects Code = Imax = 0 Fault =
189 km S (184 deg) of LP01
WESTERN AUSTRALIA
477 km N (339 deg) of PERTH
106 km NW (333 deg) of GERALDTON
25 km S (197 deg) of Kalbarri
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.7
PHASE INFORMATION
DATA USED
BAL e P2 58.00 0.30 0.38 59.86 -1.86 389.7 140 -30.8 30.8
BAL e P 58.00 0.30 0.63 55.74 2.26 389.7 140 -42.2 42.2
BAL e PG 62.30 0.30 0.63 66.07 -3.77 389.7 140 0.8 0.8
BAL w S 97.00 2.00 0.39 95.37 1.63 389.7 140 -40.3 40.3
BAL e SG 110.20 0.20 0.61 110.15 0.05 389.7 140 0.8 0.8
COOL w S 179.00 2.00 0.37 172.61 6.39 756.4 117 -40.3 40.3
COOL w SG 212.00 2.00 0.37 211.45 0.55 756.4 117 0.4 0.4
KLB w S 135.00 2.00 0.38 126.59 8.41 538.0 140 -40.3 40.3
KLB e SG 151.30 0.30 0.55 151.12 0.18 538.0 140 0.6 0.6
MBL w P 127.00 2.00 0.40 122.91 4.09 945.3 38 -42.2 42.2
MBL w S 210.00 3.00 0.33 212.33 -2.33 945.3 38 -40.3 40.3
MRWA e P 37.50 0.50 0.59 36.80 0.70 233.1 128 -42.2 42.2
MRWA e PG 40.70 0.50 0.66 40.53 0.17 233.1 128 1.3 1.3
MRWA PBS 47.40 0.30 0.50 44.89 2.51 233.1 128 -3.7 53.9
MRWA e SG 66.80 0.20 0.64 66.89 -0.09 233.1 128 1.3 1.3
MUN e P2 74.00 0.30 0.37 74.35 -0.35 493.2 156 -30.8 30.8
MUN w S 118.00 2.00 0.38 117.15 0.85 493.2 156 -40.3 40.3
MUN e S2 126.30 0.30 0.31 130.76 -4.46 493.2 156 -23.9 23.9
NANU e P 83.00 1.00 0.47 82.47 0.53 611.0 13 -42.2 42.2
NANU e S 141.00 1.00 0.42 141.92 -0.92 611.0 13 -40.3 40.3
NWAO e SG 173.00 1.00 0.42 176.67 -3.67 630.5 152 0.5 0.5
WARB e S 281.00 5.00 0.29 278.48 2.52 1259.3 84 -40.3 40.3
Velocity Ratios
NANU
NANU 1.72
0.03
Start
Date 1991-10-06
Origin Time 2259 8.29 +- 13.60
Zone 52
Easting 509.49 +- 56.55 Longitude 129.089
Northing 8136.03 +- 37.31 Latitude -16.859
Depth 5.00 +- 86.87 N
Arrival times = 11 S.D. = 1.799 Seismographs = 5
Nearest recorder = 127.4 km Gap = 166.8 deg Accuracy = C
Effects Code = Imax = 0 Fault =
127 km S (164 deg) of KNA
NORTHERN TERRITORY
523 km S (201 deg) of DARWIN
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.2
PHASE INFORMATION
DATA USED
BAL e P 245.00 2.00 0.38 254.46 -9.46 1985.2 217 -42.2 42.2
KNA S-P 14.90 0.20 1.07 14.61 0.29 127.4 344 0.0 0.0
KNA i-P 28.50 0.10 1.23 28.91 -0.41 127.4 344 -30.8 30.8
KNA e S 43.50 0.20 0.68 43.52 -0.02 127.4 344 2.3 2.3
MBL e P 147.30 0.30 0.56 145.94 1.36 1087.8 242 -42.2 42.2
MBL w S 253.00 2.00 0.35 248.12 4.88 1087.8 242 -40.3 40.3
MRWA e P 242.50 1.00 0.44 247.25 -4.75 1925.5 221 -42.2 42.2
MRWA e S 422.00 1.00 0.40 424.51 -2.51 1925.5 221 -40.3 40.3
MTN e P 74.50 0.30 0.61 74.27 0.23 495.2 26 -42.2 42.2
MTN e S 125.00 0.50 0.50 123.35 1.65 495.2 26 -40.3 40.3
NANU w P 212.00 2.00 0.39 204.02 7.98 1568.3 243 -42.2 42.2
NANU w S 351.00 2.00 0.35 349.25 1.75 1568.3 243 -40.3 40.3
WARB e P 142.00 1.00 0.44 142.95 -0.95 1062.8 193 -42.2 42.2
WARB e S 246.00 0.50 0.46 242.92 3.08 1062.8 193 -40.3 40.3
WARB SMS 276.00 1.00 0.32 280.59 -4.59 1062.8 193 -24.0 24.0
Velocity Ratios
KNA MTN WARB MBL MRWA
KNA 1.74 1.77 1.78 1.76 1.77
0.02 0.03 0.02 0.02 0.01
MTN 1.77 1.76 1.79 1.76 1.77
0.03 0.02 0.05 0.05 0.02
WARB 1.78 1.79 1.78 0.00 1.75
0.02 0.05 0.02 0.00 0.05
MBL 1.76 1.76 0.00 1.76 1.78
0.02 0.05 0.00 0.02 0.06
MRWA 1.77 1.77 1.75 1.78 1.77
0.01 0.02 0.05 0.06 0.01
Start
Date 1991-10-08
Origin Time 1429 32.24 +- 0.00
Zone 52
Easting 238.23 +- 0.00 Longitude 126.463
Northing 7554.02 +- 0.00 Latitude -22.099
Depth 5.00 +- 0.00 N
Arrival times = 4 S.D. = 0.894 Seismographs = 3
Nearest recorder = 453.0 km Gap = 253.5 deg Accuracy = C
Effects Code = Imax = 0 Fault =
447 km N (358 deg) of WBN
WESTERN AUSTRALIA
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.1
PHASE INFORMATION
DATA USED
FORR e S 251.00 5.00 0.29 248.83 2.17 977.1 170 -40.3 40.3
MBL e S 190.00 1.00 0.42 189.87 0.13 697.4 277 -40.3 40.3
WARB e P 93.00 0.50 0.56 93.15 -0.15 453.0 177 -42.2 42.2
WARB e S 138.00 0.50 0.50 138.47 -0.47 453.0 177 -40.3 40.3
Velocity Ratios
WARB
WARB 1.74
0.02
Start
Date 1991-10-08
Origin Time 2232 42.82 +- 7.66
Zone 50
Easting 592.64 +- 48.24 Longitude 117.999
Northing 6273.90 +- 15.00 Latitude -33.671
Depth 5.00 +- 55.01 N
Arrival times = 7 S.D. = 0.538 Seismographs = 5
Nearest recorder = 109.0 km Gap = 177.5 deg Accuracy = B
Effects Code = Imax = 0 Fault =
26 km NW (321 deg) of GNOC
WESTERN AUSTRALIA
277 km SE (134 deg) of PERTH
148 km N ( 5 deg) of ALBANY
29 km N (360 deg) of Gnowangerup
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 2.0
PHASE INFORMATION
DATA USED
BAL e S 130.00 1.00 0.45 129.63 0.37 360.8 339 -40.3 40.3
COOL e S 143.00 2.00 0.38 143.87 -0.87 428.3 44 -40.3 40.3
KLB e P 77.80 0.30 0.66 76.94 0.86 231.6 354 -42.2 42.2
KLB SMS 104.50 0.50 0.36 105.98 -1.48 231.6 354 -26.6 26.6
MRWA e S 167.00 2.00 0.37 165.01 1.99 528.9 338 -40.3 40.3
MUN e P 81.00 0.50 0.59 79.36 1.64 251.6 317 -42.2 42.2
MUN SMS 111.00 0.50 0.36 110.93 0.07 251.6 317 -26.1 26.1
NWAO e P 60.10 0.20 0.76 60.63 -0.53 109.0 319 2.8 2.8
NWAO e S 73.00 0.50 0.57 72.98 0.02 109.0 319 2.8 2.8
RKG e P 64.40 0.20 0.75 64.53 -0.13 135.1 222 -30.8 30.8
RKG e S 80.30 0.20 0.67 80.18 0.12 135.1 222 2.2 2.2
Velocity Ratios
NWAO RKG
NWAO 1.75 0.00
0.05 0.00
RKG 0.00 1.74
0.00 0.03
Start
Date 1991-10-09
Origin Time 0547 57.06 +- 10.87
Zone 50
Easting 423.06 +- 51.15 Longitude 116.189
Northing 6510.93 +- 47.19 Latitude -31.534
Depth 5.00 +- 42.66 N
Arrival times = 6 S.D. = 0.431 Seismographs = 3
Nearest recorder = 49.3 km Gap = 274.9 deg Accuracy = C
Effects Code = Imax = 0 Fault =
23 km N ( 5 deg) of PIG4
WESTERN AUSTRALIA
56 km NE ( 35 deg) of PERTH
20 km SE (149 deg) of Bindoon
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
KLB e P 81.00 0.50 0.62 80.74 0.26 149.2 92 -30.8 30.8
KLB e S 98.50 0.50 0.56 98.29 0.21 149.2 92 2.0 2.0
MUN e P 65.40 0.20 0.81 65.14 0.26 49.3 177 6.1 6.1
MUN e S 70.90 0.20 0.73 70.75 0.15 49.3 177 6.1 6.1
NWAO e P 84.50 0.50 0.61 85.31 -0.81 183.0 147 -42.2 42.2
NWAO e S 106.00 0.50 0.55 106.42 -0.42 183.0 147 -40.3 40.3
Velocity Ratios
MUN KLB NWAO
MUN 1.66 1.77 1.84
0.07 0.13 0.11
KLB 1.77 1.73 0.00
0.13 0.06 0.00
NWAO 1.84 0.00 1.78
0.11 0.00 0.05
Start
Date 1991-10-09
Origin Time 1645 16.12 +- 46.58
Zone 50
Easting 625.05 +- 366.43 Longitude 118.148
Northing 8699.19 +-2601.54 Latitude -11.765
Depth 5.00 +-3233.44 N
Arrival times = 8 S.D. = 2.199 Seismographs = 7
Nearest recorder = 1225.4 km Gap = 339.4 deg Accuracy = D
Effects Code = Imax = 0 Fault =
330 km SW (225 deg) of WSI
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
BAL e P 279.00 2.00 0.38 275.34 3.66 2090.7 183 -42.6 42.6
COOL w S 480.00 5.00 0.29 480.83 -0.83 2139.8 172 -41.1 41.0
KLB e S 493.00 2.00 0.35 494.85 -1.85 2194.6 180 -41.7 41.6
MRWA e P 256.00 2.00 0.38 257.37 -1.37 1944.5 186 -42.2 42.2
MUN e SN 502.00 2.00 0.23 499.88 2.12 2246.4 184 -40.3 40.3
NANU e P 169.00 0.50 0.51 170.39 -1.39 1225.4 192 -42.2 42.2
NANU e S 286.00 2.00 0.35 284.89 1.11 1225.4 192 -40.3 40.3
NWAO e SN 523.00 2.00 0.23 520.56 2.44 2344.6 182 -40.3 40.3
Velocity Ratios
NANU
NANU 1.77
0.02
Start
Date 1991-10-10
Origin Time 0224 11.13 +- 2.71
Zone 50
Easting 525.24 +- 18.21 Longitude 117.265
Northing 6552.17 +- 16.60 Latitude -31.164
Depth 5.00 +- 74.00 N
Arrival times = 6 S.D. = 0.267 Seismographs = 3
Nearest recorder = 66.8 km Gap = 176.3 deg Accuracy = B
Effects Code = Imax = 0 Fault =
31 km SE (122 deg) of DOW
WESTERN AUSTRALIA
160 km NE ( 57 deg) of PERTH
23 km E ( 80 deg) of Dowerin
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.5
PHASE INFORMATION
DATA USED
BAL e P 24.00 0.50 0.65 24.47 -0.47 81.6 319 3.7 3.7
BAL e S 34.00 0.20 0.70 33.73 0.27 81.6 319 3.7 3.7
KLB e P 22.00 1.00 0.58 22.06 -0.06 66.8 135 4.5 4.5
KLB e S 29.70 0.20 0.71 29.64 0.06 66.8 135 4.5 4.5
MRWA e S 78.00 0.50 0.53 74.14 3.86 247.8 330 -40.3 40.3
MUN e P 33.00 0.20 0.75 32.80 0.20 134.9 227 -30.8 30.8
MUN e S 48.30 0.20 0.67 48.42 -0.12 134.9 227 2.2 2.2
Velocity Ratios
KLB BAL MUN
KLB 1.71 0.00 0.00
0.19 0.00 0.00
BAL 0.00 1.78 1.59
0.00 0.09 0.18
MUN 0.00 1.59 1.70
0.00 0.18 0.02
Start
Date 1991-10-11
Origin Time 1209 22.52 +- 15.65
Zone 50
Easting 500.92 +- 122.25 Longitude 117.010
Northing 6704.78 +- 41.26 Latitude -29.787
Depth 5.00 +- 117.19 N
Arrival times = 6 S.D. = 0.589 Seismographs = 3
Nearest recorder = 95.4 km Gap = 217.9 deg Accuracy = C
Effects Code = Imax = 0 Fault =
44 km NW (313 deg) of KOO3
WESTERN AUSTRALIA
264 km NE ( 25 deg) of PERTH
14 km W (253 deg) of Mt Gibson Mine
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
PHASE INFORMATION
DATA USED
BAL e P 37.50 0.50 0.64 38.10 -0.60 95.4 197 3.2 3.2
BAL e S 49.00 0.50 0.58 48.90 0.10 95.4 197 3.2 3.2
KLB e P 54.50 1.00 0.52 54.33 0.17 212.5 160 -42.2 42.2
KLB e S 78.80 0.50 0.54 78.09 0.71 212.5 160 -40.3 40.3
MRWA e P 41.10 0.10 0.87 41.58 -0.48 116.7 302 2.6 2.6
MRWA e S 55.50 0.20 0.68 54.80 0.70 116.7 302 2.6 2.6
Velocity Ratios
BAL MRWA KLB
BAL 1.77 0.00 0.00
0.10 0.00 0.00
MRWA 0.00 1.77 0.00
0.00 0.02 0.00
KLB 0.00 0.00 1.76
0.00 0.00 0.07
Start
Date 1991-10-15
Origin Time 1617 22.58 +-1464.02
Zone 53
Easting 566.77 +-6545.51 Longitude 135.619
Northing 8409.19 +-1366.14 Latitude -14.389
Depth 5.00 +-7139.80 N
Arrival times = 7 S.D. = 5.150 Seismographs = 7
Nearest recorder = 515.0 km Gap = 287.5 deg Accuracy = D
Effects Code = Imax = 0 Fault =
514 km E (109 deg) of MTN
NORTHERN TERRITORY
561 km SE (113 deg) of DARWIN
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
BAL i P 333.00 0.10 1.00 336.34 -3.34 2637.8 223 -57.9 57.6
COOL i P 319.60 0.30 1.00 311.30 8.30 2351.5 216 -54.7 54.7
COOL S 675.00 1.00 0.45 539.66 135.34 2351.5 216 -51.4 50.8
KLB i P 336.70 0.40 1.00 335.85 0.85 2632.2 220 -57.9 57.6
KLB SG 714.00 1.00 0.45 0.00 714.00 2632.2 220 -55.6 55.2
KLB S 714.00 1.00 0.45 587.72 126.28 2632.2 220 -55.6 55.2
MRWA i P 325.60 0.20 1.00 333.09 -7.49 2600.6 227 -57.9 57.6
MRWA S 684.00 1.00 0.45 582.76 101.24 2600.6 227 -55.6 55.2
MTN e P 94.00 0.10 0.76 90.95 3.05 515.0 288 -42.2 42.2
MUN i P 346.20 0.10 1.00 347.96 -1.76 2771.0 221 -57.9 57.6
NWAO i P 349.50 0.30 1.00 347.81 1.69 2769.2 218 -57.9 57.6
NWAO S 749.00 1.00 0.45 608.80 140.20 2769.2 218 -56.4 56.4
NO VELOCITY RATIOS
Start
Date 1991-10-15
Origin Time 1617 52.72 +- 41.43
Zone 52
Easting 458.90 +-1571.84 Longitude 128.628
Northing 9278.92 +-1774.07 Latitude -6.523
Depth 5.00 +-1381.70 N
Arrival times = 7 S.D. = 2.997 Seismographs = 5
Nearest recorder = 751.1 km Gap = 311.9 deg Accuracy = D
Effects Code = Imax = 0 Fault =
316 km S (170 deg) of AAI
699 km N (340 deg) of DARWIN
ASPA 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
ASPA i-P 296.20 0.20 0.87 298.53 -2.33 1982.0 164 -42.2 42.2
ASPA S 477.70 1.00 0.57 480.88 -3.18 1982.0 164 -40.3 40.3
BAL i P 393.00 0.10 1.00 392.27 0.73 2939.2 203 -59.3 59.5
COOL i P 379.60 0.30 0.80 380.96 -1.36 2804.0 195 -58.7 58.8
COOL S 735.00 1.00 0.57 644.19 90.81 2804.0 195 -57.2 57.5
KLB i P 396.70 0.40 0.76 396.74 -0.04 2993.3 200 -59.3 59.5
KLB S 774.00 1.00 0.57 672.32 101.68 2993.3 200 -58.0 57.7
KLB SG 774.00 1.00 0.57 0.00 774.00 2993.3 200 -58.0 57.7
MRWA i P 385.60 0.20 0.87 383.78 1.82 2837.6 206 -58.7 58.8
MRWA S 744.00 1.00 0.57 649.13 94.87 2837.6 206 -57.2 57.5
MTN e P 154.00 0.10 0.73 149.64 4.36 751.1 158 -42.2 42.2
MUN i P 406.80 0.30 0.80 405.15 1.65 3096.0 202 -59.6 59.9
MUN S 682.00 1.00 0.57 687.28 -5.28 3096.0 202 -58.8 58.4
NWAO i P 409.50 0.30 0.80 409.38 0.12 3148.6 200 -60.1 60.6
NWAO S 692.00 1.00 0.57 694.87 -2.87 3148.6 200 -59.0 58.6
WRA i+P 251.50 0.20 0.87 253.46 -1.96 1609.4 158 -42.2 42.2
WRA S 406.90 1.00 0.57 402.39 4.51 1609.4 158 -40.3 40.3
Velocity Ratios
WRA ASPA
WRA 1.78 1.58
0.01 0.06
ASPA 1.58 1.75
0.06 0.01
Start
Date 1991-10-16
Origin Time 0306 3.39 +- 317.89
Zone 51
Easting 615.16 +-6272.75 Longitude 124.052
Northing 8853.24 +-5711.07 Latitude -10.372
Depth 5.00 +-6030.00 N
Arrival times = 6 S.D. =14.302 Seismographs = 4
Nearest recorder = 2246.0 km Gap = 346.4 deg Accuracy = D
Effects Code = Imax = 0 Fault =
54 km SE (116 deg) of KUPT
775 km W (287 deg) of DARWIN
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
BAL e P 273.50 0.10 0.70 293.21 -19.71 2363.9 197 -54.8 54.7
BAL e S 514.00 1.00 0.40 522.62 -8.62 2363.9 197 -51.4 50.8
COOL e P 296.00 0.50 0.51 286.07 9.93 2288.8 187 -51.3 50.9
KLB e P 305.00 0.50 0.51 299.31 5.69 2434.8 194 -56.2 56.1
MRWA e P 283.00 0.50 0.51 281.81 1.19 2248.7 200 -49.8 49.5
MRWA e S 484.00 1.00 0.40 495.94 -11.94 2248.7 200 -44.7 46.1
Velocity Ratios
MRWA BAL
MRWA 1.72 0.00
0.01 0.00
BAL 0.00 1.89
0.00 0.00
Start
Date 1991-10-18
Origin Time 0907 27.65 +- 4.32
Zone 50
Easting 200.24 +- 79.09 Longitude 114.126
Northing 7730.56 +- 72.00 Latitude -20.500
Depth 5.00 +- 139.30 N
Arrival times = 13 S.D. = 0.780 Seismographs = 8
Nearest recorder = 598.5 km Gap = 286.9 deg Accuracy = C
Effects Code = Imax = 0 Fault =
217 km NW (302 deg) of LP05
WESTERN AUSTRALIA
271 km W (273 deg) of Dampier
157 km N (360 deg) of Exmouth
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 4.3
PHASE INFORMATION
DATA USED
BAL e P 173.00 0.10 0.70 172.73 0.27 1149.2 167 -42.2 42.2
BAL e S 284.00 0.10 0.63 280.42 3.58 1149.2 167 -40.3 40.3
COOL e P 197.00 0.10 0.70 196.81 0.19 1348.2 150 -42.2 42.2
COOL e S 321.00 0.10 0.63 322.35 -1.35 1348.2 150 -40.3 40.3
KLB e P 188.40 0.30 0.56 188.68 -0.28 1281.2 164 -42.2 42.2
KLB e S 310.00 1.00 0.40 308.20 1.80 1281.2 164 -40.3 40.3
MBL i-P 106.30 0.10 1.07 106.12 0.18 598.5 98 -42.2 42.2
MBL e S 165.00 1.00 0.42 164.46 0.54 598.5 98 -40.3 40.3
MRWA e P 152.90 0.20 0.62 152.76 0.14 984.1 169 -42.2 42.2
MRWA e S 245.00 0.50 0.46 245.67 -0.67 984.1 169 -40.3 40.3
MTN e P 273.30 0.30 0.56 277.46 -4.16 2015.5 67 -42.2 42.2
MTN e S 461.00 1.00 0.40 462.80 -1.80 2015.5 67 -40.4 40.4
MUN e P 189.60 0.30 0.56 189.58 0.02 1288.7 171 -42.2 42.2
MUN e S 312.50 0.50 0.46 309.77 2.73 1288.7 171 -40.3 40.3
NWAO e P 203.50 0.50 0.51 204.36 -0.86 1410.9 168 -42.2 42.2
NWAO e S 337.00 1.00 0.40 335.50 1.50 1410.9 168 -40.3 40.3
WARB e P 205.40 0.30 0.56 206.58 -1.18 1429.1 118 -42.2 42.2
WARB e S 340.00 0.50 0.46 339.37 0.63 1429.1 118 -40.3 40.3
Velocity Ratios
MBL KLB COOL NWAO WARB
MBL 1.75 1.77 1.72 1.77 1.77
0.01 0.03 0.02 0.03 0.02
KLB 1.77 1.76 1.28 0.00 1.76
0.03 0.01 0.20 0.00 0.16
COOL 1.72 1.28 1.73 0.00 2.26
0.02 0.20 0.00 0.00 0.19
NWAO 1.77 0.00 0.00 1.76 0.00
0.03 0.00 0.00 0.01 0.00
WARB 1.77 1.76 2.26 0.00 1.76
0.02 0.16 0.19 0.00 0.01
Start
Date 1991-10-20
Origin Time 2347 16.33 +- 1.77
Zone 50
Easting 524.53 +- 11.98 Longitude 117.257
Northing 6551.56 +- 11.39 Latitude -31.170
Depth 5.00 +- 51.08 N
Arrival times = 6 S.D. = 0.276 Seismographs = 3
Nearest recorder = 66.9 km Gap = 174.8 deg Accuracy = B
Effects Code = Imax = 0 Fault =
31 km SE (124 deg) of DOW
WESTERN AUSTRALIA
159 km NE ( 57 deg) of PERTH
22 km E ( 81 deg) of Dowerin
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.6
PHASE INFORMATION
DATA USED
BAL e P 29.50 0.20 0.78 29.67 -0.17 81.6 319 3.7 3.7
BAL e S 39.00 0.20 0.70 38.92 0.08 81.6 319 3.7 3.7
KLB e P 27.70 0.20 0.79 27.27 0.43 66.9 134 4.5 4.5
KLB e S 34.50 0.20 0.71 34.86 -0.36 66.9 134 4.5 4.5
MRWA e S 83.20 0.30 0.59 79.38 3.82 248.0 330 -40.3 40.3
MUN e P 37.80 0.20 0.75 37.87 -0.07 134.0 227 -30.8 30.8
MUN e S 53.40 0.20 0.67 53.36 0.04 134.0 227 2.2 2.2
Velocity Ratios
KLB BAL MUN
KLB 1.60 0.00 1.87
0.05 0.00 0.12
BAL 0.00 1.72 1.73
0.00 0.04 0.14
MUN 1.87 1.73 1.73
0.12 0.14 0.03
Start
Date 1991-10-21
Origin Time 0035 53.84 +- 10.43
Zone 50
Easting 524.46 +- 59.67 Longitude 117.257
Northing 6550.74 +- 75.93 Latitude -31.177
Depth 5.00 +- 256.80 N
Arrival times = 5 S.D. = 0.211 Seismographs = 3
Nearest recorder = 66.4 km Gap = 173.9 deg Accuracy = C
Effects Code = Imax = 0 Fault =
32 km SE (125 deg) of DOW
WESTERN AUSTRALIA
159 km NE ( 58 deg) of PERTH
22 km E ( 83 deg) of Dowerin
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
BAL e S 76.50 0.30 0.65 76.59 -0.09 82.2 320 3.7 3.7
KLB e P 65.00 0.50 0.66 64.70 0.30 66.4 134 4.6 4.6
KLB e S 72.00 0.20 0.72 72.23 -0.23 66.4 134 4.6 4.6
MRWA e S 120.00 0.50 0.53 117.03 2.97 248.7 330 -40.3 40.3
MUN e P 75.40 0.20 0.75 75.30 0.10 133.4 227 -30.8 30.8
MUN e S 90.60 0.50 0.56 90.71 -0.11 133.4 227 2.3 2.3
Velocity Ratios
KLB MUN
KLB 1.63 0.00
0.10 0.00
MUN 0.00 1.70
0.00 0.04
Start
Date 1991-10-21
Origin Time 1944 25.61 +- 3.06
Zone 51
Easting 544.90 +- 61.62 Longitude 123.493
Northing 6103.74 +- 45.71 Latitude -35.208
Depth 5.00 +- 101.04 N
Arrival times = 11 S.D. = 0.411 Seismographs = 7
Nearest recorder = 527.2 km Gap = 300.1 deg Accuracy = C
Effects Code = Imax = 0 Fault =
451 km S (161 deg) of KMBL
796 km SE (119 deg) of PERTH
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.8
PHASE INFORMATION
DATA USED
BAL e P 130.00 1.00 0.46 130.28 -0.28 815.0 307 -42.2 42.2
BAL e S 207.50 1.00 0.41 208.02 -0.52 815.0 307 -40.3 40.3
COOL e P 95.40 0.20 0.66 95.50 -0.10 527.2 334 -42.2 42.2
COOL e S 147.90 0.10 0.68 147.48 0.42 527.2 334 -40.3 40.3
KLB e S 176.40 0.50 0.48 176.97 -0.57 667.5 305 -40.3 40.3
MRWA e S 240.00 0.50 0.46 240.80 -0.80 970.7 311 -40.3 40.3
MUN e P 126.00 1.00 0.46 124.33 1.67 765.9 295 -42.2 42.2
MUN e S 198.00 0.30 0.53 197.67 0.33 765.9 295 -40.3 40.3
NWAO e P 108.00 0.50 0.54 108.04 -0.04 631.1 291 -42.2 42.2
NWAO e S 170.00 0.50 0.48 169.31 0.69 631.1 291 -40.3 40.3
RKG e P 104.00 0.10 0.75 103.94 0.06 597.2 274 -42.2 42.2
RKG e S 162.20 0.20 0.59 162.17 0.03 597.2 274 -40.3 40.3
Velocity Ratios
COOL RKG NWAO BAL
COOL 1.75 1.66 1.75 1.72
0.01 0.10 0.15 0.09
RKG 1.66 1.74 0.00 1.74
0.10 0.00 0.00 0.13
NWAO 1.75 0.00 1.75 1.70
0.15 0.00 0.02 0.20
BAL 1.72 1.74 1.70 1.74
0.09 0.13 0.20 0.03
Start
Date 1991-10-23
Origin Time 0503 20.91 +- 9.69
Zone 49
Easting 616.78 +- 323.31 Longitude 112.332
Northing 5780.73 +- 446.27 Latitude -38.114
Depth 5.00 +- 687.73 N
Arrival times = 10 S.D. = 0.641 Seismographs = 7
Nearest recorder = 575.9 km Gap = 331.8 deg Accuracy = C
Effects Code = Imax = 0 Fault =
575 km SW (225 deg) of RKG
755 km SW (204 deg) of PERTH
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.8
PHASE INFORMATION
DATA USED
BAL e P 138.50 0.50 0.52 138.96 -0.46 925.6 26 -42.2 42.2
BAL e S 230.00 2.00 0.35 226.62 3.38 925.6 26 -40.3 40.3
COOL e P 165.40 0.50 0.51 165.26 0.14 1142.9 47 -42.2 42.2
KLB e P 133.80 0.30 0.58 133.26 0.54 878.5 35 -42.2 42.2
KLB e S 220.00 1.00 0.41 216.69 3.31 878.5 35 -40.3 40.3
MRWA e P 152.50 0.30 0.57 153.29 -0.79 1044.2 19 -42.2 42.2
MRWA e S 252.00 0.50 0.46 251.58 0.42 1044.2 19 -40.3 40.3
MUN e P 120.00 0.30 0.58 119.83 0.17 767.5 28 -42.2 42.2
MUN e S 193.00 1.00 0.41 193.32 -0.32 767.5 28 -40.3 40.3
NWAO e P 116.20 0.30 0.59 115.05 1.15 727.9 39 -42.2 42.2
RKG e P 96.00 0.20 0.65 96.66 -0.66 575.9 48 -42.2 42.2
RKG e S 152.80 0.30 0.54 152.98 -0.18 575.9 48 -40.3 40.3
Velocity Ratios
RKG MUN MRWA
RKG 1.76 1.67 1.76
0.01 0.09 0.03
MUN 1.67 1.74 1.82
0.09 0.02 0.08
MRWA 1.76 1.82 1.76
0.03 0.08 0.01
Start
Date 1991-10-24
Origin Time 0457 1.07 +- 0.00
Zone 50
Easting 409.94 +- 0.00 Longitude 116.137
Northing 7750.68 +- 0.00 Latitude -20.340
Depth 5.00 +- 0.00 N
Arrival times = 4 S.D. = 0.217 Seismographs = 2
Nearest recorder = 395.4 km Gap = 340.8 deg Accuracy = D
Effects Code = Imax = 0 Fault =
137 km N ( 10 deg) of LP05
WESTERN AUSTRALIA
88 km NW (299 deg) of Karratha
70 km NW (299 deg) of Dampier
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.7
PHASE INFORMATION
DATA USED
MBL e P 55.10 0.10 0.78 55.00 0.10 395.4 104 -42.2 42.2
MBL e S 95.00 0.50 0.51 95.14 -0.14 395.4 104 -40.3 40.3
WARB e P 159.00 1.00 0.44 159.31 -0.31 1257.9 123 -42.2 42.2
WARB e S 277.00 1.00 0.40 276.75 0.25 1257.9 123 -40.3 40.3
Velocity Ratios
MBL WARB
MBL 1.74 1.75
0.01 0.03
WARB 1.75 1.75
0.03 0.02
Start
Date 1991-10-25
Origin Time 0505 56.05 +- 14.84
Zone 50
Easting 803.30 +- 52.76 Longitude 119.907
Northing 7734.87 +- 101.61 Latitude -20.460
Depth 5.00 +- 37.23 N
Arrival times = 8 S.D. = 0.921 Seismographs = 5
Nearest recorder = 77.9 km Gap = 292.8 deg Accuracy = B
Effects Code = Imax = 0 Fault =
77 km N ( 5 deg) of MBL
WESTERN AUSTRALIA
140 km E ( 98 deg) of PORT HEDLAND
80 km N ( 12 deg) of Marble Bar
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.0
PHASE INFORMATION
DATA USED
BAL e S 313.00 1.00 0.40 312.97 0.03 1168.9 195 -40.3 40.3
COOL e P 201.00 0.50 0.51 202.78 -1.78 1162.6 174 -42.2 42.2
COOL e S 312.50 1.00 0.40 311.69 0.81 1162.6 174 -40.3 40.3
MBL i+P 68.70 0.10 1.29 68.78 -0.08 77.9 185 3.8 3.8
MRWA e P 190.40 0.50 0.51 188.80 1.60 1047.2 201 -42.2 42.2
MRWA e S 287.00 1.00 0.40 287.35 -0.35 1047.2 201 -40.3 40.3
NANU S-P 52.00 5.00 1.08 50.54 1.46 511.6 242 0.0 0.0
NANU P 120.00 10.00 0.27 124.00 -4.00 511.6 242 -42.2 42.2
WARB e P 176.00 0.50 0.52 175.91 0.09 940.5 134 -42.2 42.2
WARB e S 266.00 5.00 0.29 264.92 1.08 940.5 134 -40.3 40.3
Velocity Ratios
WARB MRWA COOL
WARB 1.75 0.00 0.00
0.05 0.00 0.00
MRWA 0.00 1.72 0.00
0.00 0.01 0.00
COOL 0.00 0.00 1.77
0.00 0.00 0.01
Start
Date 1991-10-31
Origin Time 0323 45.28 +- 53.20
Zone 51
Easting 290.37 +- 178.60 Longitude 120.993
Northing 7756.05 +- 557.79 Latitude -20.282
Depth 5.00 +- 379.83 N
Arrival times = 5 S.D. = 0.108 Seismographs = 3
Nearest recorder = 155.1 km Gap = 254.6 deg Accuracy = C
Effects Code = Imax = 0 Fault =
155 km NE ( 51 deg) of MBL
WESTERN AUSTRALIA
252 km E ( 90 deg) of PORT HEDLAND
163 km NE ( 53 deg) of Marble Bar
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.6
PHASE INFORMATION
DATA USED
MBL i-P 69.80 0.10 1.21 69.78 0.02 155.1 230 -30.8 30.8
MBL e S 88.00 1.00 0.48 88.16 -0.16 155.1 230 1.9 1.9
NANU S-P 60.50 1.00 0.67 60.61 -0.11 623.9 245 0.0 0.0
WARB e P 156.80 0.50 0.52 156.92 -0.12 872.5 139 -42.2 42.2
WARB e S 240.00 1.00 0.41 239.82 0.18 872.5 139 -40.3 40.3
Velocity Ratios
MBL WARB
MBL 1.74 1.75
0.05 0.04
WARB 1.75 1.75
0.04 0.02
Start
Date 1991-11-02
Origin Time 0909 18.33 +- 7.89
Zone 50
Easting 594.24 +- 40.64 Longitude 118.017
Northing 6273.68 +- 41.08 Latitude -33.673
Depth 1.00 +- 48.60 G
Arrival times = 7 S.D. = 0.634 Seismographs = 4
Nearest recorder = 110.3 km Gap = 273.3 deg Accuracy = C
Effects Code = Imax = 0 Fault =
25 km NW (324 deg) of GNOC
WESTERN AUSTRALIA
279 km SE (134 deg) of PERTH
148 km N ( 5 deg) of ALBANY
29 km N ( 3 deg) of Gnowangerup
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
PHASE INFORMATION
DATA USED
COOL e S 119.00 0.50 0.50 119.89 -0.89 427.4 44 -40.3 40.3
COOL e SG 133.50 0.50 0.50 136.39 -2.89 427.4 44 0.2 0.2
KLB e P 53.00 0.30 0.66 52.93 0.07 231.9 354 -42.2 42.2
KLB e S 79.70 0.30 0.59 78.71 0.99 231.9 354 -40.3 40.3
MUN e P 56.00 0.30 0.65 55.45 0.55 252.8 317 -42.2 42.2
MUN e S 87.30 0.30 0.59 83.10 4.20 252.8 317 -40.3 40.3
MUN e SG 87.40 0.20 0.64 88.17 -0.77 252.8 317 0.3 0.3
NWAO e P 36.00 0.20 0.76 36.32 -0.32 110.3 318 0.7 0.7
NWAO e S 49.00 0.20 0.69 48.79 0.21 110.3 318 0.7 0.7
Velocity Ratios
NWAO KLB
NWAO 1.74 1.81
0.03 0.09
KLB 1.81 1.77
0.09 0.02
Start
Date 1991-11-03
Origin Time 1536 18.31 +- 1.23
Zone 50
Easting 499.47 +- 4.87 Longitude 116.994
Northing 6492.22 +- 7.51 Latitude -31.705
Depth 3.73 +- 132.42
Arrival times = 7 S.D. = 0.119 Seismographs = 4
Nearest recorder = 73.7 km Gap = 99.7 deg Accuracy = A
Effects Code = Imax = 0 Fault =
29 km NE ( 46 deg) of YORK
WESTERN AUSTRALIA
112 km E ( 76 deg) of PERTH
8 km S (190 deg) of Meckering
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.9
PHASE INFORMATION
DATA USED
BAL e P 38.70 0.20 0.75 38.68 0.02 124.8 347 1.9 1.9
BAL e S 52.70 0.20 0.68 52.80 -0.10 124.8 347 1.9 1.9
KLB i-P 30.30 0.10 1.29 30.34 -0.04 73.7 80 3.1 3.1
KLB e S 38.90 0.20 0.71 38.69 0.21 73.7 80 3.1 3.1
MRWA SMS 95.00 1.00 0.36 96.58 -1.58 291.8 340 -25.5 25.5
MUN S-P 9.30 0.10 1.28 9.09 0.21 80.3 247 0.0 0.0
MUN i-P 31.40 0.10 1.28 31.42 -0.02 80.3 247 2.8 2.8
MUN e S 40.70 0.20 0.70 40.52 0.18 80.3 247 2.8 2.8
NWAO e S 56.00 1.00 0.49 56.23 -0.23 137.2 170 1.7 1.7
Velocity Ratios
KLB MUN BAL
KLB 1.72 0.00 1.64
0.03 0.00 0.11
MUN 0.00 1.71 1.64
0.00 0.03 0.13
BAL 1.64 1.64 1.69
0.11 0.13 0.03
Start
Date 1991-11-05
Origin Time 0926 49.80 +- 3.84
Zone 51
Easting 415.51 +- 54.18 Longitude 122.097
Northing 6366.56 +- 35.40 Latitude -32.836
Depth 5.00 +- 95.07 N
Arrival times = 10 S.D. = 0.336 Seismographs = 7
Nearest recorder = 234.4 km Gap = 269.1 deg Accuracy = D
Effects Code = Imax = 0 Fault =
163 km S (173 deg) of KMBL
WESTERN AUSTRALIA
596 km E (101 deg) of PERTH
77 km SE (157 deg) of NORSEMAN
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.8
PHASE INFORMATION
DATA USED
BAL e P 124.50 0.50 0.54 124.62 -0.12 568.2 294 -42.2 42.2
BAL e S 180.00 1.00 0.43 180.25 -0.25 568.2 294 -40.3 40.3
COOL i+P 84.30 0.10 1.17 84.29 0.01 234.4 337 -42.2 42.2
COOL e S 110.50 1.00 0.46 110.03 0.47 234.4 337 -40.3 40.3
KLB e P 107.70 0.20 0.67 108.13 -0.43 431.8 287 -42.2 42.2
KLB e S 152.00 1.00 0.44 151.55 0.45 431.8 287 -40.3 40.3
MRWA e P 141.00 1.00 0.46 141.56 -0.56 708.3 303 -42.2 42.2
MUN e P 123.80 0.30 0.60 123.98 -0.18 562.9 278 -42.2 42.2
MUN e S 180.50 2.00 0.37 179.13 1.37 562.9 278 -40.3 40.3
NWAO e P 111.30 0.30 0.62 111.02 0.28 455.7 267 -42.2 42.2
NWAO e S 154.00 0.50 0.50 156.56 -2.56 455.7 267 -40.3 40.3
RKG e P 118.00 0.50 0.55 117.56 0.44 509.8 246 -42.2 42.2
RKG e S 171.50 0.50 0.50 167.95 3.55 509.8 246 -40.3 40.3
Velocity Ratios
COOL KLB BAL
COOL 1.76 1.77 1.73
0.03 0.11 0.08
KLB 1.77 1.77 1.67
0.11 0.02 0.20
BAL 1.73 1.67 1.74
0.08 0.20 0.03
Start
Date 1991-11-07
Origin Time 0147 16.66 +- 1.22
Zone 50
Easting 516.73 +- 5.01 Longitude 117.177
Northing 6443.44 +- 4.62 Latitude -32.145
Depth 5.00 +- 107.29 N
Arrival times = 7 S.D. = 0.123 Seismographs = 4
Nearest recorder = 82.5 km Gap = 134.6 deg Accuracy = A
Effects Code = Imax = 0 Fault =
24 km E ( 99 deg) of BEVE
WESTERN AUSTRALIA
127 km E (100 deg) of PERTH
24 km E ( 97 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
PHASE INFORMATION
DATA USED
BAL e PG 45.40 0.10 0.84 45.44 -0.04 176.3 345 1.7 1.7
BAL e S 65.00 0.30 0.61 64.62 0.38 176.3 345 -40.3 40.3
KLB e P 30.10 0.20 0.78 30.15 -0.05 82.5 41 3.7 3.7
KLB e S 39.50 0.50 0.58 39.50 0.00 82.5 41 3.7 3.7
MUN i+P 32.00 0.10 1.27 31.91 0.09 93.3 281 3.2 3.2
MUN e S 42.30 0.20 0.70 42.49 -0.19 93.3 281 3.2 3.2
NWAO e P 31.00 0.30 0.72 30.85 0.15 86.8 176 3.5 3.5
NWAO e S 40.50 0.30 0.65 40.68 -0.18 86.8 176 3.5 3.5
RKG e P 56.50 1.00 0.51 55.34 1.16 269.2 183 -42.2 42.2
RKG e S 87.50 0.50 0.53 84.19 3.31 269.2 183 -40.3 40.3
Velocity Ratios
KLB NWAO MUN
KLB 1.70 0.00 0.00
0.06 0.00 0.00
NWAO 0.00 1.66 0.00
0.00 0.06 0.00
MUN 0.00 0.00 1.67
0.00 0.00 0.02
Start
Date 1991-11-08
Origin Time 0824 54.32 +- 4.23
Zone 50
Easting 409.05 +- 62.05 Longitude 116.021
Northing 6291.07 +- 17.93 Latitude -33.516
Depth 0.00 +- 38.91 G
Arrival times = 6 S.D. = 0.306 Seismographs = 3
Nearest recorder = 148.3 km Gap = 223.5 deg Accuracy = C
Effects Code = Imax = 0 Fault =
91 km W (275 deg) of BEAU
WESTERN AUSTRALIA
174 km S (175 deg) of PERTH
120 km NE ( 42 deg) of AUGUSTA
20 km SW (217 deg) of Collie
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
BAL e S 140.00 1.00 0.45 135.30 4.70 328.9 11 -40.3 40.3
KLB e P 93.90 0.20 0.70 93.47 0.43 268.6 37 -42.2 42.2
KLB e S 122.60 0.30 0.58 122.60 -0.00 268.6 37 -40.3 40.3
MUN e P 81.30 0.30 0.68 81.52 -0.22 171.4 5 -30.8 30.8
MUN e S 101.40 0.50 0.55 101.66 -0.26 171.4 5 0.1 0.1
RKG e P 78.50 0.50 0.62 78.30 0.20 148.3 142 -30.8 30.8
RKG e S 95.00 0.30 0.62 95.29 -0.29 148.3 142 0.1 0.1
Velocity Ratios
RKG MUN KLB
RKG 1.68 0.00 1.79
0.05 0.00 0.13
MUN 0.00 1.74 1.68
0.00 0.04 0.14
KLB 1.79 1.68 1.73
0.13 0.14 0.02
Start
Date 1991-11-09
Origin Time 0024 35.23 +- 1.68
Zone 50
Easting 571.74 +- 9.17 Longitude 117.747
Northing 6635.49 +- 6.76 Latitude -30.410
Depth 0.83 +- 30.04
Arrival times = 7 S.D. = 0.113 Seismographs = 3
Nearest recorder = 102.2 km Gap = 231.8 deg Accuracy = B
Effects Code = Imax = 0 Fault =
1 km N (349 deg) of BEAW
WESTERN AUSTRALIA
249 km NE ( 47 deg) of PERTH
13 km W (290 deg) of Beacon
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
PHASE INFORMATION
DATA USED
BAL S-P 11.50 0.10 1.26 11.56 -0.06 102.2 257 0.0 0.0
BAL e P 51.70 0.20 0.77 51.89 -0.19 102.2 257 0.6 0.6
BAL e S 63.70 0.30 0.64 63.45 0.25 102.2 257 0.6 0.6
KLB S-P 14.80 0.10 1.23 14.81 -0.01 130.9 179 0.0 0.0
KLB e P 56.60 0.20 0.75 56.59 0.01 130.9 179 0.5 0.5
KLB e S 71.40 0.20 0.68 71.40 0.00 130.9 179 0.5 0.5
MRWA e S 92.00 1.00 0.47 92.00 -0.00 214.7 307 -40.3 40.3
Velocity Ratios
BAL KLB
BAL 1.73 0.00
0.04 0.00
KLB 0.00 1.69
0.00 0.03
Start
Date 1991-11-14
Origin Time 1843 52.06 +- 89.25
Zone 50
Easting 700.48 +- 469.59 Longitude 118.930
Northing 7666.55 +-1117.22 Latitude -21.091
Depth 5.00 +- 696.96 N
Arrival times = 5 S.D. = 0.690 Seismographs = 3
Nearest recorder = 94.2 km Gap = 210.0 deg Accuracy = D
Effects Code = Imax = 0 Fault =
55 km SE (157 deg) of RP02
WESTERN AUSTRALIA
95 km SE (157 deg) of PORT HEDLAND
86 km W (276 deg) of Marble Bar
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.7
PHASE INFORMATION
DATA USED
MBL i+P 67.40 0.10 1.27 67.45 -0.05 94.2 94 3.2 3.2
MBL w S 77.00 2.00 0.45 78.12 -1.12 94.2 94 3.2 3.2
NANU S-P 39.00 0.10 1.11 39.59 -0.59 389.3 244 0.0 0.0
WARB e P 177.00 1.00 0.45 175.75 1.25 972.1 127 -42.2 42.2
WARB e S 268.00 1.00 0.40 267.59 0.41 972.1 127 -40.3 40.3
Velocity Ratios
MBL WARB
MBL 1.63 1.74
0.14 0.05
WARB 1.74 1.73
0.05 0.02
Start
Date 1991-11-15
Origin Time 0223 35.02 +- 0.00
Zone 49
Easting 592.19 +- 0.00 Longitude 111.891
Northing 7611.40 +- 0.00 Latitude -21.598
Depth 5.00 +- 0.00 N
Arrival times = 4 S.D. = 0.835 Seismographs = 3
Nearest recorder = 387.3 km Gap = 293.2 deg Accuracy = D
Effects Code = Imax = 0 Fault =
323 km NW (301 deg) of LP03
WESTERN AUSTRALIA
234 km W (278 deg) of Exmouth
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.6
PHASE INFORMATION
DATA USED
MBL e SG 263.50 0.50 0.47 263.73 -0.23 827.9 88 0.4 0.4
MBL e S 263.50 0.50 0.47 220.13 43.37 827.9 88 -40.3 40.3
MRWA w P 156.00 2.00 0.40 154.84 1.16 940.3 154 -42.2 42.2
MRWA e S 243.00 1.00 0.40 243.82 -0.82 940.3 154 -40.3 40.3
NANU S-P 40.00 0.50 0.81 39.40 0.60 387.3 106 0.0 0.0
Velocity Ratios
MRWA
MRWA 1.72
0.04
Start
Date 1991-11-15
Origin Time 2239 42.16 +- 0.93
Zone 50
Easting 504.68 +- 4.63 Longitude 117.049
Northing 6500.71 +- 9.76 Latitude -31.629
Depth 7.37 +- 39.54
Arrival times = 6 S.D. = 0.068 Seismographs = 3
Nearest recorder = 67.5 km Gap = 157.0 deg Accuracy = A
Effects Code = Imax = 0 Fault =
32 km SE (144 deg) of GOO
WESTERN AUSTRALIA
119 km E ( 73 deg) of PERTH
4 km E ( 88 deg) of Meckering
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
PHASE INFORMATION
DATA USED
BAL e P 61.30 0.30 0.70 61.26 0.04 117.9 343 -30.8 30.8
BAL e S 74.80 0.20 0.68 74.80 0.00 117.9 343 3.7 3.7
GOO S 51.60 0.40 0.94 51.27 0.33 32.1 324 13.5 13.5
KLB i-P 53.20 0.10 1.30 53.25 -0.05 67.5 86 6.5 6.5
KLB i S 61.00 0.10 1.17 60.94 0.06 67.5 86 6.5 6.5
MRWA e P 83.00 2.00 0.44 82.57 0.43 285.7 339 -42.2 42.2
MRWA e S 114.00 2.00 0.40 112.72 1.28 285.7 339 -40.3 40.3
MUN i+P 56.60 0.10 1.27 56.66 -0.06 88.5 243 4.9 4.9
MUN i S 66.80 0.20 1.00 66.71 0.09 88.5 243 4.9 4.9
Velocity Ratios
KLB MUN BAL
KLB 1.71 0.00 1.70
0.02 0.00 0.13
MUN 0.00 1.71 0.00
0.00 0.03 0.00
BAL 1.70 0.00 1.71
0.13 0.00 0.04
Start
Date 1991-11-16
Origin Time 0452 10.41 +- 9.15
Zone 50
Easting 513.61 +- 56.11 Longitude 117.142
Northing 6597.46 +- 37.88 Latitude -30.756
Depth 3.56 +- 111.39
Arrival times = 5 S.D. = 0.043 Seismographs = 3
Nearest recorder = 44.9 km Gap = 216.3 deg Accuracy = A
Effects Code = Imax = 0 Fault =
1 km SW (218 deg) of CAA
WESTERN AUSTRALIA
181 km NE ( 43 deg) of PERTH
2 km NE ( 36 deg) of Cadoux
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.6
PHASE INFORMATION
DATA USED
BAL i-P 17.80 0.10 1.35 17.75 0.05 44.9 291 4.9 4.9
BAL i S 22.80 0.10 1.21 22.85 -0.05 44.9 291 4.9 4.9
COOL e P 62.50 0.30 0.63 63.06 -0.56 383.3 93 -42.2 42.2
COOL e PG 71.80 0.30 0.63 72.95 -1.15 383.3 93 0.6 0.6
COOL e S 102.00 0.20 0.61 102.25 -0.25 383.3 93 -40.3 40.3
COOL e SG 116.00 1.00 0.44 116.31 -0.31 383.3 93 0.6 0.6
KLB w P 29.00 1.00 0.56 28.33 0.67 109.8 147 2.0 2.0
KLB e S 40.70 0.30 0.63 40.76 -0.06 109.8 147 2.0 2.0
MRWA e P 42.30 0.30 0.67 41.25 1.05 203.1 326 -42.2 42.2
MRWA e S 65.60 0.20 0.65 64.27 1.33 203.1 326 -40.3 40.3
MUN i-P 36.00 0.10 1.21 36.00 -0.00 162.0 212 -30.8 30.8
MUN i S 55.20 0.20 0.95 55.18 0.02 162.0 212 1.3 1.3
Velocity Ratios
BAL MUN
BAL 1.68 1.78
0.04 0.04
MUN 1.78 1.75
0.04 0.01
Start
Date 1991-11-17
Origin Time 1504 29.14 +- 8.20
Zone 51
Easting 535.99 +- 26.82 Longitude 123.395
Northing 6107.46 +- 27.15 Latitude -35.175
Depth 5.00 +- 25.26 N
Arrival times = 9 S.D. = 0.684 Seismographs = 6
Nearest recorder = 520.1 km Gap = 299.1 deg Accuracy = D
Effects Code = Imax = 0 Fault =
444 km S (162 deg) of KMBL
786 km SE (119 deg) of PERTH
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.3
PHASE INFORMATION
DATA USED
BAL e S 210.50 2.00 0.36 209.59 0.91 805.7 307 -40.3 40.3
COOL e P 98.00 0.20 0.66 98.18 -0.18 520.1 335 -42.2 42.2
COOL e S 150.00 1.00 0.43 149.52 0.48 520.1 335 -40.3 40.3
KLB e S 178.00 1.00 0.42 178.53 -0.53 658.1 305 -40.3 40.3
KLB e SG 210.00 0.50 0.48 210.94 -0.94 658.1 305 0.5 0.5
MRWA e S 242.50 2.00 0.35 242.41 0.09 961.6 311 -40.3 40.3
MUN e P 134.00 0.50 0.53 126.70 7.30 756.2 296 -42.2 42.2
MUN e S 200.50 1.00 0.41 199.17 1.33 756.2 296 -40.3 40.3
RKG e P 106.00 0.50 0.54 106.36 -0.36 588.0 274 -42.2 42.2
RKG e S 164.00 1.00 0.42 163.76 0.24 588.0 274 -40.3 40.3
Velocity Ratios
COOL RKG
COOL 1.76 0.00
0.02 0.00
RKG 0.00 1.75
0.00 0.02
Start
Date 1991-11-18
Origin Time 0449 29.17 +- 29.99
Zone 50
Easting 752.58 +- 89.71 Longitude 119.420
Northing 7742.62 +- 148.97 Latitude -20.398
Depth 5.00 +- 66.07 N
Arrival times = 6 S.D. = 0.271 Seismographs = 4
Nearest recorder = 94.8 km Gap = 253.7 deg Accuracy = C
Effects Code = Imax = 0 Fault =
76 km E ( 70 deg) of RP02
WESTERN AUSTRALIA
92 km N (338 deg) of Marble Bar
88 km E ( 97 deg) of PORT HEDLAND
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.4
PHASE INFORMATION
DATA USED
BAL e S 286.00 1.00 0.40 284.86 1.14 1163.1 192 -40.3 40.3
COOL e S 285.00 1.00 0.40 287.51 -2.51 1175.5 171 -40.3 40.3
KLB e S 304.00 0.50 0.46 303.40 0.60 1251.2 187 -40.3 40.3
MBL i+P 44.70 0.10 1.27 44.65 0.05 94.8 153 3.1 3.1
MBL w S 55.00 2.00 0.45 55.38 -0.38 94.8 153 3.1 3.1
MRWA e S 258.00 0.50 0.46 258.14 -0.14 1036.2 198 -40.3 40.3
MUN e S 318.00 0.50 0.46 318.34 -0.34 1322.1 193 -40.3 40.3
NANU S-P 47.00 2.00 0.60 46.87 0.13 470.6 238 0.0 0.0
WARB e P 153.80 0.50 0.51 154.08 -0.28 982.2 132 -42.2 42.2
WARB e S 247.50 1.00 0.40 246.82 0.68 982.2 132 -40.3 40.3
Velocity Ratios
MBL WARB
MBL 1.66 1.76
0.14 0.04
WARB 1.76 1.75
0.04 0.02
Start
Date 1991-11-19
Origin Time 0553 3.38 +- 8.81
Zone 50
Easting 605.16 +- 26.89 Longitude 118.130
Northing 6314.92 +- 14.11 Latitude -33.300
Depth 5.00 +- 60.60 N
Arrival times = 7 S.D. = 0.534 Seismographs = 4
Nearest recorder = 174.7 km Gap = 168.4 deg Accuracy = B
Effects Code = Imax = 0 Fault =
51 km NW (297 deg) of PIN
WESTERN AUSTRALIA
261 km SE (126 deg) of PERTH
190 km N ( 7 deg) of ALBANY
37 km E ( 87 deg) of Dumbleyung
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.6
PHASE INFORMATION
DATA USED
BAL e S 82.00 0.50 0.52 83.14 -1.14 327.4 335 -40.3 40.3
BAL e SG 91.00 1.00 0.45 93.83 -2.83 327.4 335 0.9 0.9
COOL e P 60.00 0.50 0.56 56.81 3.19 391.1 47 -42.2 42.2
COOL e S 97.00 0.50 0.51 96.58 0.42 391.1 47 -40.3 40.3
KLB e P 32.00 0.50 0.60 32.78 -0.78 192.5 349 -42.2 42.2
KLB e S 54.50 0.50 0.54 54.74 -0.24 192.5 349 -40.3 40.3
MRWA e P 71.00 1.00 0.48 69.46 1.54 495.9 335 -42.2 42.2
MRWA e SG 137.00 1.00 0.43 140.36 -3.36 495.9 335 0.6 0.6
MUN e P 38.30 0.20 0.71 37.57 0.73 232.2 308 -42.2 42.2
MUN e S 63.00 1.00 0.46 63.09 -0.09 232.2 308 -40.3 40.3
RKG e P 30.30 0.30 0.67 30.63 -0.33 174.7 215 -42.2 42.2
RKG e S 51.10 0.20 0.66 51.00 0.10 174.7 215 -40.3 40.3
Velocity Ratios
RKG KLB MUN
RKG 1.77 0.00 0.00
0.03 0.00 0.00
KLB 0.00 1.79 0.00
0.00 0.05 0.00
MUN 0.00 0.00 1.71
0.00 0.00 0.04
Start
Date 1991-11-20
Origin Time 0356 26.43 +- 44.62
Zone 50
Easting 296.94 +- 497.12 Longitude 114.907
Northing 6746.10 +-3763.18 Latitude -29.398
Depth 5.00 +-3295.52 N
Arrival times = 5 S.D. = 0.287 Seismographs = 3
Nearest recorder = 107.6 km Gap = 307.1 deg Accuracy = D
Effects Code = Imax = 0 Fault =
107 km W (259 deg) of MRWA
WESTERN AUSTRALIA
297 km N (342 deg) of PERTH
75 km S (158 deg) of GERALDTON
17 km S (188 deg) of Dongara
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
BAL e P 59.50 0.50 0.60 59.06 0.44 219.3 128 -42.2 42.2
BAL e S 83.00 0.50 0.54 83.42 -0.42 219.3 128 -40.3 40.3
COOL e S 167.00 5.00 0.31 168.48 -1.48 623.1 106 -40.3 40.3
KLB e S 114.50 1.00 0.45 114.35 0.15 366.1 132 -40.3 40.3
MRWA i+P 43.90 0.10 1.25 44.00 -0.10 107.6 79 2.8 2.8
MRWA e S 56.40 0.20 0.69 56.19 0.21 107.6 79 2.8 2.8
MUN e S 124.00 0.50 0.51 102.94 21.06 312.0 156 -40.3 40.3
MUN e SG 124.00 0.50 0.51 112.63 11.37 312.0 156 1.0 1.0
Velocity Ratios
MRWA BAL
MRWA 1.72 1.71
0.02 0.11
BAL 1.71 1.71
0.11 0.04
Start
Date 1991-11-20
Origin Time 1625 41.57 +- 9.38
Zone 50
Easting 642.94 +- 70.59 Longitude 118.536
Northing 6308.79 +- 25.00 Latitude -33.351
Depth 5.00 +- 123.89 N
Arrival times = 7 S.D. = 0.742 Seismographs = 4
Nearest recorder = 195.3 km Gap = 183.1 deg Accuracy = C
Effects Code = Imax = 0 Fault =
19 km N (338 deg) of PIN
WESTERN AUSTRALIA
296 km SE (122 deg) of PERTH
193 km N ( 19 deg) of ALBANY
28 km S (167 deg) of Lake Grace
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.7
PHASE INFORMATION
DATA USED
BAL e S 132.00 0.50 0.51 126.05 5.95 349.8 330 -40.3 40.3
COOL w P 105.00 1.00 0.51 92.24 12.76 368.2 42 -42.2 42.2
COOL e SG 143.00 0.50 0.51 143.30 -0.30 368.2 42 0.9 0.9
KLB e P 73.50 1.00 0.52 72.86 0.64 208.2 339 -42.2 42.2
KLB e S 95.50 0.50 0.54 96.24 -0.74 208.2 339 -40.3 40.3
MUN e P 81.00 0.30 0.65 79.86 1.14 266.1 304 -42.2 42.2
MUN e S 108.00 0.20 0.63 108.41 -0.41 266.1 304 -40.3 40.3
RKG e P 71.00 1.00 0.52 71.31 -0.31 195.3 225 -42.2 42.2
RKG e S 93.00 1.00 0.47 93.53 -0.53 195.3 225 -40.3 40.3
Velocity Ratios
RKG KLB MUN
RKG 1.75 0.00 0.00
0.10 0.00 0.00
KLB 0.00 1.69 0.00
0.00 0.07 0.00
MUN 0.00 0.00 1.68
0.00 0.00 0.02
Start
Date 1991-11-20
Origin Time 1904 21.19 +- 0.57
Zone 50
Easting 499.76 +- 2.96 Longitude 116.998
Northing 6491.11 +- 4.54 Latitude -31.715
Depth 3.60 +- 12.56
Arrival times = 8 S.D. = 0.111 Seismographs = 5
Nearest recorder = 73.6 km Gap = 169.0 deg Accuracy = A
Effects Code = Imax = 0 Fault =
29 km NE ( 48 deg) of YORK
WESTERN AUSTRALIA
112 km E ( 77 deg) of PERTH
10 km S (187 deg) of Meckering
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
PHASE INFORMATION
DATA USED
BAL e P 41.70 0.10 0.86 41.73 -0.03 126.0 347 -30.8 30.8
BAL e S 56.00 0.20 0.68 56.00 0.00 126.0 347 1.8 1.8
COOL e SG 133.00 0.50 0.51 133.23 -0.23 405.6 77 0.6 0.6
KLB e P 33.40 0.20 0.79 33.21 0.19 73.6 79 3.0 3.0
KLB e S 41.50 0.20 0.71 41.54 -0.04 73.6 79 3.0 3.0
MRWA e S 94.00 0.50 0.52 93.95 0.05 293.0 340 -40.3 40.3
MUN e P 34.20 0.10 0.90 34.28 -0.08 80.2 248 2.8 2.8
MUN e S 43.40 0.10 0.81 43.36 0.04 80.2 248 2.8 2.8
Velocity Ratios
KLB MUN BAL
KLB 1.66 0.00 1.75
0.04 0.00 0.12
MUN 0.00 1.71 1.68
0.00 0.02 0.09
BAL 1.75 1.68 1.70
0.12 0.09 0.02
Start
Date 1991-11-20
Origin Time 1940 9.00 +- 0.78
Zone 50
Easting 497.89 +- 4.05 Longitude 116.978
Northing 6493.44 +- 6.06 Latitude -31.694
Depth 1.00 +- 18.33 G
Arrival times = 7 S.D. = 0.194 Seismographs = 4
Nearest recorder = 75.0 km Gap = 164.9 deg Accuracy = A
Effects Code = Imax = 0 Fault =
29 km NE ( 42 deg) of YORK
WESTERN AUSTRALIA
110 km E ( 75 deg) of PERTH
8 km SW (203 deg) of Meckering
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
PHASE INFORMATION
DATA USED
BAL e P 29.00 0.20 0.75 29.11 -0.11 123.3 347 0.6 0.6
BAL e S 43.00 0.20 0.68 43.06 -0.06 123.3 347 0.6 0.6
KLB e P 21.00 0.20 0.79 21.25 -0.25 75.0 81 1.0 1.0
KLB e S 30.00 0.20 0.71 29.74 0.26 75.0 81 1.0 1.0
MRWA e S 82.00 0.50 0.52 81.64 0.36 290.2 340 -40.3 40.3
MUN e P 21.90 0.10 0.90 21.95 -0.05 79.3 246 0.9 0.9
MUN e S 31.00 0.10 0.81 30.92 0.08 79.3 246 0.9 0.9
Velocity Ratios
KLB MUN BAL
KLB 1.75 0.00 1.62
0.05 0.00 0.14
MUN 0.00 1.71 1.69
0.00 0.02 0.12
BAL 1.62 1.69 1.70
0.14 0.12 0.03
Start
Date 1991-11-23
Origin Time 0615 9.41 +- 12.83
Zone 49
Easting 640.25 +- 364.87 Longitude 112.596
Northing 5799.54 +- 525.54 Latitude -37.941
Depth 5.00 +- 808.20 N
Arrival times = 8 S.D. = 0.643 Seismographs = 5
Nearest recorder = 545.8 km Gap = 331.1 deg Accuracy = D
Effects Code = Imax = 0 Fault =
545 km SW (225 deg) of RKG
728 km SW (203 deg) of PERTH
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.5
PHASE INFORMATION
DATA USED
BAL e P 124.30 0.30 0.57 124.13 0.17 898.1 26 -42.2 42.2
COOL w P 151.00 1.00 0.45 150.12 0.88 1112.9 47 -42.2 42.2
KLB e P 118.30 0.30 0.58 118.24 0.06 849.4 35 -42.2 42.2
KLB e S 200.50 0.50 0.47 199.07 1.43 849.4 35 -40.3 40.3
MRWA i+P 138.20 0.10 1.01 138.67 -0.47 1018.4 18 -42.2 42.2
MRWA e S 234.50 0.30 0.51 234.65 -0.15 1018.4 18 -40.3 40.3
MUN e P 105.50 0.30 0.59 104.97 0.53 739.7 27 -42.2 42.2
MUN e S 177.00 0.30 0.53 175.97 1.03 739.7 27 -40.3 40.3
RKG e P 82.10 0.20 0.66 81.53 0.57 545.8 47 -42.2 42.2
RKG e S 134.00 0.50 0.49 135.15 -1.15 545.8 47 -40.3 40.3
Velocity Ratios
RKG MUN MRWA
RKG 1.71 1.84 1.79
0.01 0.08 0.02
MUN 1.84 1.74 1.76
0.08 0.01 0.04
MRWA 1.79 1.76 1.75
0.02 0.04 0.00
Start
Date 1991-11-24
Origin Time 1438 46.69 +- 17.45
Zone 50
Easting 500.07 +- 361.23 Longitude 117.001
Northing 7857.63 +- 787.88 Latitude -19.375
Depth 5.00 +- 988.99 N
Arrival times = 6 S.D. = 0.416 Seismographs = 3
Nearest recorder = 355.8 km Gap = 299.3 deg Accuracy = D
Effects Code = Imax = 0 Fault =
180 km N (338 deg) of RP01
WESTERN AUSTRALIA
151 km N ( 5 deg) of Karratha
144 km N ( 12 deg) of Dampier
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.1
PHASE INFORMATION
DATA USED
BAL e S 322.00 4.00 0.30 319.43 2.57 1244.0 181 -40.3 40.3
COOL e P 216.00 2.00 0.38 215.05 0.95 1341.5 162 -42.2 42.2
COOL e S 339.00 2.00 0.35 340.00 -1.00 1341.5 162 -40.3 40.3
KNA e S 311.00 1.00 0.40 335.33 -24.33 1319.7 73 -40.3 40.3
MBL e P 96.00 0.10 0.79 95.82 0.18 355.8 124 -42.2 42.2
MBL e S 131.80 0.50 0.51 132.41 -0.61 355.8 124 -40.3 40.3
MBL e SG 147.00 1.00 0.44 144.99 2.01 355.8 124 0.8 0.8
MRWA e P 185.00 1.00 0.44 185.17 -0.17 1094.6 185 -42.2 42.2
MRWA e S 288.00 0.40 0.48 287.96 0.04 1094.6 185 -40.3 40.3
MRWA e SG 353.00 2.00 0.35 349.06 3.94 1094.6 185 0.3 0.3
NANU S-P 44.00 1.00 0.70 39.11 4.89 383.9 203 0.0 0.0
WARB e P 203.50 0.50 0.51 203.74 -0.24 1248.0 129 -42.2 42.2
WARB e S 321.00 0.50 0.46 320.29 0.71 1248.0 129 -40.3 40.3
Velocity Ratios
MBL MRWA WARB
MBL 1.73 1.76 1.76
0.01 0.03 0.02
MRWA 1.76 1.74 0.00
0.03 0.02 0.00
WARB 1.76 0.00 1.75
0.02 0.00 0.01
Start
Date 1991-11-24
Origin Time 1704 34.36 +- 0.48
Zone 50
Easting 515.69 +- 3.63 Longitude 117.166
Northing 6444.72 +- 2.72 Latitude -32.134
Depth 1.00 +- 12.20 C
Arrival times = 12 S.D. = 0.336 Seismographs = 6
Nearest recorder = 82.2 km Gap = 105.1 deg Accuracy = A
Effects Code = Imax = 0 Fault =
22 km E ( 96 deg) of BEVE
WESTERN AUSTRALIA
126 km E (100 deg) of PERTH
22 km E ( 94 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.4
PHASE INFORMATION
DATA USED
BAL e P 61.30 0.30 0.67 61.96 -0.66 174.8 345 -30.8 30.8
BAL e PG 62.90 0.30 0.67 62.88 0.02 174.8 345 0.4 0.4
BAL e S 82.00 0.50 0.55 82.65 -0.65 174.8 345 0.4 0.4
BAL e SG 82.50 0.30 0.61 82.65 -0.15 174.8 345 0.4 0.4
COOL e P 88.80 0.20 0.68 89.63 -0.83 402.6 70 -42.2 42.2
COOL SMP 98.50 0.50 0.40 100.41 -1.91 402.6 70 -59.6 31.0
COOL e S 130.50 0.50 0.51 130.72 -0.22 402.6 70 -40.3 40.3
KLB i-P 47.60 0.10 1.28 47.78 -0.18 82.2 43 0.9 0.9
KLB i S 57.50 0.10 1.15 57.08 0.42 82.2 43 0.9 0.9
MRWA e P 82.20 0.20 0.69 82.28 -0.08 342.0 340 -42.2 42.2
MRWA e S 115.40 0.30 0.57 117.92 -2.52 342.0 340 -40.3 40.3
MUN i-P 49.50 0.20 1.10 49.38 0.12 92.1 280 0.8 0.8
MUN e S 60.30 0.20 0.70 59.80 0.50 92.1 280 0.8 0.8
NWAO w P 49.00 0.50 0.66 48.74 0.26 88.1 175 0.8 0.8
NWAO i S 58.60 0.10 1.15 58.70 -0.10 88.1 175 0.8 0.8
RKG e P 75.00 0.10 0.81 73.62 1.38 270.5 183 -42.2 42.2
RKG e S 104.60 0.10 0.73 102.85 1.75 270.5 183 -40.3 40.3
Velocity Ratios
KLB NWAO MUN BAL
KLB 1.75 0.00 0.00 1.79
0.02 0.00 0.00 0.10
NWAO 0.00 1.66 0.00 1.90
0.00 0.07 0.00 0.18
MUN 0.00 0.00 1.71 1.84
0.00 0.00 0.04 0.14
BAL 1.79 1.90 1.84 1.77
0.10 0.18 0.14 0.04
Start
Date 1991-11-24
Origin Time 1957 48.47 +- 637.32
Zone 51
Easting 342.16 +-5917.65 Longitude 121.518
Northing 8127.90 +-11661.19 Latitude -16.927
Depth 5.00 +-10062.26 N
Arrival times = 6 S.D. =57.402 Seismographs = 2
Nearest recorder = 501.1 km Gap = 313.3 deg Accuracy = D
Effects Code = Imax = 0 Fault =
500 km N ( 21 deg) of MBL
WESTERN AUSTRALIA
138 km NW (327 deg) of BROOME
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
MBL S-P 102.40 0.10 1.09 49.62 52.78 501.1 200 0.0 0.0
MBL e P 125.60 0.20 0.66 115.18 10.42 501.1 200 -42.2 42.2
MBL e S 168.00 0.50 0.50 164.79 3.21 501.1 200 -40.3 40.3
MRWA e SG 308.00 1.00 0.40 456.34-148.34 1476.5 201 0.2 0.2
MRWA e S 308.00 1.00 0.40 370.15 -62.15 1476.5 201 -40.3 40.3
WARB S-P 176.50 0.10 1.00 108.12 68.38 1153.9 153 0.0 0.0
WARB e P 179.50 0.30 0.56 194.13 -14.63 1153.9 153 -42.2 42.2
WARB e S 296.00 1.00 0.40 302.26 -6.26 1153.9 153 -40.3 40.3
Velocity Ratios
MBL WARB
MBL 1.55 2.37
0.01 0.05
WARB 2.37 1.89
0.05 0.01
Start
Date 1991-11-25
Origin Time 0133 7.03 +- 0.81
Zone 50
Easting 512.13 +- 6.93 Longitude 117.127
Northing 6594.57 +- 6.66 Latitude -30.782
Depth 1.25 +- 15.53
Arrival times = 7 S.D. = 0.159 Seismographs = 4
Nearest recorder = 44.7 km Gap = 178.7 deg Accuracy = A
Effects Code = Imax = 0 Fault =
1 km W (265 deg) of CAR
WESTERN AUSTRALIA
178 km NE ( 43 deg) of PERTH
1 km S (194 deg) of Cadoux
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.6
PHASE INFORMATION
DATA USED
BAL i-P 14.30 0.10 1.35 14.32 -0.02 44.7 295 2.0 2.0
BAL e S 19.30 0.10 0.85 19.37 -0.07 44.7 295 2.0 2.0
COOL e P 58.30 0.30 0.63 60.10 -1.80 384.7 92 -42.2 42.2
COOL e S 98.50 0.50 0.51 99.56 -1.06 384.7 92 -40.3 40.3
KLB i-P 24.80 0.10 1.25 24.68 0.12 108.2 146 0.8 0.8
KLB e S 36.50 0.30 0.63 36.91 -0.41 108.2 146 0.8 0.8
MRWA e P 38.50 0.50 0.60 38.32 0.18 204.7 327 -42.2 42.2
MRWA e PG 38.50 0.50 0.60 40.43 -1.93 204.7 327 0.4 0.4
MRWA e S 62.00 0.10 0.75 61.64 0.36 204.7 327 -40.3 40.3
MUN i+P 32.30 0.10 1.21 32.36 -0.06 158.8 212 -30.8 30.8
MUN e S 51.10 0.20 0.66 50.90 0.20 158.8 212 0.5 0.5
NWAO e SG 72.00 0.50 0.53 72.76 -0.76 238.0 177 0.4 0.4
RKG e P 65.50 0.50 0.56 64.35 1.15 420.1 181 -42.2 42.2
RKG SMS 118.40 0.30 0.44 117.71 0.69 420.1 181 -24.6 24.6
RKG e S 118.40 0.30 0.56 106.97 11.43 420.1 181 -40.3 40.3
Velocity Ratios
BAL KLB MUN
BAL 1.69 1.64 1.77
0.04 0.07 0.04
KLB 1.64 1.66 1.95
0.07 0.03 0.12
MUN 1.77 1.95 1.74
0.04 0.12 0.01
Start
Date 1991-11-25
Origin Time 0142 54.29 +- 0.54
Zone 50
Easting 513.05 +- 5.69 Longitude 117.136
Northing 6596.08 +- 5.08 Latitude -30.768
Depth 1.69 +- 12.17
Arrival times = 8 S.D. = 0.164 Seismographs = 4
Nearest recorder = 44.9 km Gap = 180.0 deg Accuracy = A
Effects Code = Imax = 0 Fault =
0 km N ( 21 deg) of CADX
WESTERN AUSTRALIA
179 km NE ( 43 deg) of PERTH
1 km E ( 71 deg) of Cadoux
CAS 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.2
PHASE INFORMATION
DATA USED
BAL i-P 61.60 0.10 1.35 61.62 -0.02 44.9 293 2.5 2.5
BAL w S 66.60 0.20 0.75 66.70 -0.10 44.9 293 2.5 2.5
CAS S-P 0.53 0.30 1.13 0.57 -0.04 4.7 185 0.0 0.0
COOL e P 106.00 0.30 0.63 107.20 -1.20 383.8 92 -42.2 42.2
COOL e PG 116.60 0.30 0.63 116.90 -0.30 383.8 92 0.3 0.3
COOL e S 145.50 0.50 0.51 146.56 -1.06 383.8 92 -40.3 40.3
COOL e SG 160.20 0.30 0.56 160.32 -0.12 383.8 92 0.3 0.3
GOO S 75.70 0.50 0.84 74.87 0.83 74.5 201 1.5 1.5
KLB i-P 72.20 0.10 1.25 72.06 0.14 108.9 147 1.0 1.0
KLB e S 83.90 0.30 0.63 84.38 -0.48 108.9 147 1.0 1.0
MBL e P 193.00 0.50 0.43 193.53 -0.53 1098.0 14 -42.2 42.2
MBL e S 295.00 1.00 0.32 296.87 -1.87 1098.0 14 -40.3 40.3
MRWA e P 85.40 0.20 0.72 85.43 -0.03 204.0 327 -42.2 42.2
MRWA i P2 86.00 0.10 0.71 85.92 0.08 204.0 327 -30.8 30.8
MRWA i S 109.00 0.10 1.07 108.66 0.34 204.0 327 -40.3 40.3
MUN S-P 19.00 0.30 0.97 18.81 0.19 160.6 212 0.0 0.0
MUN i-P 79.80 0.30 0.97 79.83 -0.03 160.6 212 -30.8 30.8
MUN e S 98.80 0.30 0.61 98.64 0.16 160.6 212 0.7 0.7
NWAO w P 89.00 2.00 0.46 89.72 -0.72 239.4 177 -42.2 42.2
NWAO S2 119.30 0.50 0.42 118.84 0.46 239.4 177 -23.9 23.9
RKG e P 111.50 0.50 0.56 111.75 -0.25 421.6 181 -42.2 42.2
RKG e S 154.50 0.50 0.50 154.47 0.03 421.6 181 -40.3 40.3
WARB e P 188.50 0.50 0.43 189.40 -0.90 1063.6 63 -42.2 42.2
WARB e S 288.00 1.00 0.32 289.67 -1.67 1063.6 63 -40.3 40.3
WARB e SG 345.00 0.50 0.39 348.11 -3.11 1063.6 63 0.1 0.1
Velocity Ratios
BAL KLB MUN
BAL 1.68 1.63 1.77
0.05 0.08 0.07
KLB 1.63 1.65 1.96
0.08 0.03 0.19
MUN 1.77 1.96 1.74
0.07 0.19 0.03
Start
Date 1991-11-25
Origin Time 0530 46.02 +- 0.00
Zone 49
Easting 699.65 +- 0.00 Longitude 113.159
Northing 6245.78 +- 0.00 Latitude -33.909
Depth 5.00 +- 0.00 N
Arrival times = 4 S.D. = 0.000 Seismographs = 2
Nearest recorder = 357.0 km Gap = 334.2 deg Accuracy = D
Effects Code = Imax = 0 Fault =
356 km SW (232 deg) of MUN
WESTERN AUSTRALIA
332 km SW (228 deg) of PERTH
189 km W (283 deg) of AUGUSTA
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
MRWA e SG 208.00 1.00 0.43 208.00 -0.00 586.3 28 0.5 0.5
MUN S-P 36.70 0.10 1.12 36.70 -0.00 357.0 53 0.0 0.0
MUN e P 95.30 0.10 0.79 95.30 -0.00 357.0 53 -42.2 42.2
MUN e S 132.00 0.50 0.51 132.00 -0.00 357.0 53 -40.3 40.3
RKG e SG 190.00 2.00 0.38 146.24 43.76 362.8 102 0.8 0.8
Velocity Ratios
MUN
MUN 1.74
0.01
Start
Date 1991-11-28
Origin Time 0419 2.43 +- 9.21
Zone 53
Easting 211.68 +- 14.61 Longitude 132.186
Northing 7444.63 +- 29.54 Latitude -23.082
Depth 5.00 +- 65.12 N
Arrival times = 7 S.D. = 0.603 Seismographs = 4
Nearest recorder = 187.6 km Gap = 135.6 deg Accuracy = C
Effects Code = Imax = 0 Fault =
187 km W (290 deg) of ASPA
NORTHERN TERRITORY
182 km W (288 deg) of ALICE SPRINGS
99 km SE (156 deg) of YUENDUMU
ASPA 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.1
PHASE INFORMATION
DATA USED
ASPA i P 31.40 0.20 1.04 31.27 0.13 187.6 111 -42.2 42.2
ASPA e S 52.40 0.20 0.65 52.81 -0.41 187.6 111 -40.3 40.3
KNA e P 119.80 0.30 0.57 116.11 3.69 889.7 335 -42.2 42.2
KNA e S 201.00 0.50 0.47 200.54 0.46 889.7 335 -40.3 40.3
MBL e P 167.00 1.00 0.44 166.63 0.37 1307.4 277 -42.2 42.2
MBL e S 287.00 0.50 0.46 288.50 -1.50 1307.4 277 -40.3 40.3
MTN e S 265.00 1.00 0.32 253.16 11.84 1139.7 354 -40.3 40.3
MTN e SG 326.00 1.00 0.32 317.27 8.73 1139.7 354 0.3 0.3
WARB e P 88.50 0.50 0.54 88.43 0.07 660.4 237 -42.2 42.2
WARB e S 153.00 0.30 0.53 152.33 0.67 660.4 237 -40.3 40.3
Velocity Ratios
ASPA WARB MBL
ASPA 1.72 1.76 1.73
0.02 0.03 0.02
WARB 1.76 1.75 1.71
0.03 0.01 0.04
MBL 1.73 1.71 1.73
0.02 0.04 0.01
Start
Date 1991-12-04
Origin Time 0121 25.12 +- 0.00
Zone 50
Easting 525.67 +- 0.00 Longitude 117.279
Northing 6210.76 +- 0.00 Latitude -34.244
Depth 5.00 +- 0.00 N
Arrival times = 4 S.D. = 0.340 Seismographs = 3
Nearest recorder = 43.8 km Gap = 205.3 deg Accuracy = D
Effects Code = Imax = 0 Fault =
43 km NE ( 34 deg) of RKG
WESTERN AUSTRALIA
287 km SE (153 deg) of PERTH
100 km NW (327 deg) of ALBANY
26 km W (284 deg) of Cranbrook
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.2
PHASE INFORMATION
DATA USED
KLB PG 76.70 2.00 0.63 73.65 3.05 297.4 8 1.0 1.0
KLB SG 107.00 1.00 0.65 107.30 -0.30 297.4 8 1.0 1.0
MUN SG 100.00 2.00 0.57 99.80 0.20 270.3 338 1.1 1.1
MUN S2 100.00 2.00 0.32 97.10 2.90 270.3 338 -23.9 23.9
RKG i-P 32.60 0.30 1.08 32.31 0.29 43.8 214 6.9 6.9
RKG i S 37.00 0.30 0.97 37.29 -0.29 43.8 214 6.9 6.9
Velocity Ratios
RKG
RKG 1.59
0.11
Start
Date 1991-12-04
Origin Time 1602 28.65 +- 2.85
Zone 50
Easting 601.01 +- 14.74 Longitude 118.090
Northing 6274.86 +- 6.30 Latitude -33.661
Depth 1.00 +- 17.05 C
Arrival times = 9 S.D. = 0.259 Seismographs = 6
Nearest recorder = 114.0 km Gap = 180.5 deg Accuracy = C
Effects Code = Imax = 0 Fault =
22 km N (339 deg) of GNOC
WESTERN AUSTRALIA
283 km SE (133 deg) of PERTH
150 km N ( 8 deg) of ALBANY
31 km N ( 16 deg) of Gnowangerup
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 1.9
PHASE INFORMATION
DATA USED
BAL e S 116.50 0.50 0.51 116.58 -0.08 362.8 338 -40.3 40.3
COOL w S 129.00 1.00 0.45 129.03 -0.03 421.8 43 -40.3 40.3
KLB e S 89.30 0.30 0.59 88.94 0.36 231.5 352 -40.3 40.3
MRWA e P 98.50 0.50 0.55 99.42 -0.92 531.1 337 -42.2 42.2
MRWA e S 153.00 1.00 0.43 152.01 0.99 531.1 337 -40.3 40.3
MUN e P 66.00 1.00 0.51 66.22 -0.22 256.5 316 -42.2 42.2
MUN e S 94.60 0.50 0.53 94.20 0.40 256.5 316 -40.3 40.3
NWAO e P 47.00 0.30 0.70 47.24 -0.24 114.0 315 0.6 0.6
NWAO e S 60.00 0.30 0.63 60.13 -0.13 114.0 315 0.6 0.6
RKG e P 51.40 0.50 0.62 51.60 -0.20 141.6 224 -30.8 30.8
RKG e S 68.00 0.30 0.62 67.77 0.23 141.6 224 0.5 0.5
Velocity Ratios
NWAO RKG MUN
NWAO 1.71 0.00 1.82
0.05 0.00 0.18
RKG 0.00 1.73 0.00
0.00 0.05 0.00
MUN 1.82 0.00 1.77
0.18 0.00 0.06
Start
Date 1991-12-04
Origin Time 1955 27.71 +- 4.69
Zone 50
Easting 595.34 +- 25.90 Longitude 118.028
Northing 6276.10 +- 6.10 Latitude -33.651
Depth 1.00 +- 33.99 C
Arrival times = 8 S.D. = 0.220 Seismographs = 5
Nearest recorder = 109.2 km Gap = 177.8 deg Accuracy = B
Effects Code = Imax = 0 Fault =
26 km NW (329 deg) of GNOC
WESTERN AUSTRALIA
278 km SE (133 deg) of PERTH
150 km N ( 6 deg) of ALBANY
31 km N ( 5 deg) of Gnowangerup
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.1
PHASE INFORMATION
DATA USED
BAL w S 113.00 1.00 0.46 114.98 -1.98 359.7 339 -40.3 40.3
COOL e S 129.00 1.00 0.44 128.74 0.26 424.9 44 -40.3 40.3
KLB e P 62.00 0.50 0.59 62.03 -0.03 229.6 353 -42.2 42.2
KLB e S 87.50 0.50 0.53 87.60 -0.10 229.6 353 -40.3 40.3
MRWA e P 97.00 1.00 0.48 98.09 -1.09 527.9 338 -42.2 42.2
MRWA e S 149.00 1.00 0.43 150.39 -1.39 527.9 338 -40.3 40.3
MUN e P 65.00 0.50 0.59 64.70 0.30 251.8 317 -42.2 42.2
MUN e S 93.40 0.50 0.53 92.25 1.15 251.8 317 -40.3 40.3
NWAO e P 45.20 0.50 0.63 45.52 -0.32 109.2 317 0.7 0.7
NWAO e S 58.00 0.30 0.63 57.87 0.13 109.2 317 0.7 0.7
RKG e P 50.00 0.20 0.75 50.23 -0.23 138.6 222 -30.8 30.8
RKG S 66.10 0.30 0.89 65.99 0.11 138.6 222 0.5 0.5
Velocity Ratios
NWAO RKG KLB
NWAO 1.73 0.00 1.76
0.07 0.00 0.16
RKG 0.00 1.72 1.78
0.00 0.03 0.18
KLB 1.76 1.78 1.74
0.16 0.18 0.04
Start
Date 1991-12-04
Origin Time 2234 33.84 +- 14.83
Zone 50
Easting 418.89 +- 73.34 Longitude 116.127
Northing 6295.33 +- 31.12 Latitude -33.478
Depth 1.00 +- 155.50 C
Arrival times = 6 S.D. = 0.322 Seismographs = 4
Nearest recorder = 119.9 km Gap = 216.2 deg Accuracy = C
Effects Code = Imax = 0 Fault =
82 km W (279 deg) of BEAU
WESTERN AUSTRALIA
171 km S (171 deg) of PERTH
130 km NE ( 44 deg) of AUGUSTA
12 km S (190 deg) of Collie
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
KLB w P 72.00 2.00 0.45 71.75 0.25 259.3 36 -42.2 42.2
KLB e S 102.00 2.00 0.40 99.99 2.01 259.3 36 -40.3 40.3
MUN w P 60.50 0.10 0.86 60.27 0.23 166.5 2 -30.8 30.8
MUN e S 79.00 2.00 0.42 79.83 -0.83 166.5 2 0.4 0.4
NWAO w S 67.00 0.50 0.58 66.96 0.04 119.9 59 0.6 0.6
RKG e P 57.20 0.20 0.74 57.40 -0.20 145.9 146 -30.8 30.8
RKG e S 74.20 0.30 0.62 74.16 0.04 145.9 146 0.5 0.5
Velocity Ratios
RKG MUN
RKG 1.73 0.00
0.03 0.00
MUN 0.00 1.69
0.00 0.08
Start
Date 1991-12-06
Origin Time 1458 41.94 +- 26.37
Zone 49
Easting 616.05 +- 550.20 Longitude 112.167
Northing 7039.24 +- 71.50 Latitude -26.763
Depth 5.00 +- 656.28 N
Arrival times = 7 S.D. = 0.452 Seismographs = 5
Nearest recorder = 465.0 km Gap = 249.4 deg Accuracy = C
Effects Code = Imax = 0 Fault =
220 km W (253 deg) of LP01
WESTERN AUSTRALIA
677 km NW (327 deg) of PERTH
257 km SW (216 deg) of CARNARVON
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.3
PHASE INFORMATION
DATA USED
BAL e P 123.00 0.30 0.60 122.50 0.50 615.6 135 -42.2 42.2
BAL e S 182.50 0.50 0.49 182.38 0.12 615.6 135 -40.3 40.3
COOL e P 167.00 0.40 0.54 167.98 -0.98 991.6 119 -42.2 42.2
COOL e S 258.00 1.00 0.40 261.56 -3.56 991.6 119 -40.3 40.3
COOL SG 313.00 0.50 0.66 315.85 -2.85 991.6 119 0.3 0.3
KLB w P 141.00 2.00 0.41 140.45 0.55 764.1 136 -42.2 42.2
KLB e S 212.00 0.50 0.48 213.64 -1.64 764.1 136 -40.3 40.3
MBL e P 168.50 0.30 0.57 168.97 -0.47 1000.1 52 -42.2 42.2
MBL e S 262.00 0.50 0.46 263.30 -1.30 1000.1 52 -40.3 40.3
MRWA e P 104.30 0.30 0.61 104.28 0.02 465.0 126 -42.2 42.2
MRWA e S 150.50 2.00 0.38 150.66 -0.16 465.0 126 -40.3 40.3
MUN e P 132.00 0.50 0.53 132.58 -0.58 699.1 146 -42.2 42.2
MUN e S 198.00 0.30 0.53 199.94 -1.94 699.1 146 -40.3 40.3
NANU i-P 118.30 5.00 0.49 117.76 0.54 576.7 36 -42.2 42.2
NWAO e P 149.10 0.30 0.58 149.78 -0.68 841.3 145 -42.2 42.2
NWAO e S 230.00 1.00 0.41 229.89 0.11 841.3 145 -40.3 40.3
RKG w P 164.00 2.00 0.40 166.90 -2.90 982.9 153 -42.2 42.2
RKG e S 259.00 0.50 0.46 259.69 -0.69 982.9 153 -40.3 40.3
Velocity Ratios
MRWA BAL
MRWA 1.74 1.71
0.04 0.19
BAL 1.71 1.73
0.19 0.01
Start
Date 1991-12-06
Origin Time 2117 33.05 +- 0.00
Zone 49
Easting 706.24 +- 0.00 Longitude 113.029
Northing 7336.33 +- 0.00 Latitude -24.072
Depth 5.00 +- 0.00 N
Arrival times = 4 S.D. = 1.664 Seismographs = 2
Nearest recorder = 642.9 km Gap = 273.1 deg Accuracy = D
Effects Code = Imax = 0 Fault =
185 km SW (236 deg) of LP03
WESTERN AUSTRALIA
916 km N (342 deg) of PERTH
111 km NW (324 deg) of CARNARVON
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.5
PHASE INFORMATION
DATA USED
MBL w P 135.00 2.00 0.41 132.66 2.34 773.3 66 -42.2 42.2
MBL w S 205.00 2.00 0.37 206.66 -1.66 773.3 66 -40.3 40.3
MRWA e P 115.80 0.30 0.60 116.90 -1.10 642.9 153 -42.2 42.2
MRWA e S 180.00 0.30 0.54 179.22 0.78 642.9 153 -40.3 40.3
NANU S-P 40.00 4.00 0.54 31.98 8.02 304.4 56 0.0 0.0
Velocity Ratios
MRWA MBL
MRWA 1.78 0.00
0.01 0.00
MBL 0.00 1.69
0.00 0.05
Start
Date 1991-12-08
Origin Time 2143 39.37 +- 0.42
Zone 50
Easting 501.09 +- 3.34 Longitude 117.012
Northing 6488.42 +- 2.58 Latitude -31.740
Depth 1.31 +- 8.58
Arrival times = 13 S.D. = 0.283 Seismographs = 6
Nearest recorder = 41.2 km Gap = 94.0 deg Accuracy = A
Effects Code = Imax = 0 Fault =
28 km NE ( 53 deg) of YORK
WESTERN AUSTRALIA
112 km E ( 78 deg) of PERTH
12 km S (179 deg) of Meckering
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.2
PHASE INFORMATION
DATA USED
BAL e P 60.30 0.10 0.86 60.39 -0.09 128.9 346 0.7 0.7
BAL e S 75.00 0.10 0.78 74.97 0.03 128.9 346 0.7 0.7
GOO e P 46.10 0.30 0.76 46.09 0.01 41.2 338 2.2 2.2
GOO S 50.70 0.50 0.88 50.75 -0.05 41.2 338 2.2 2.2
KLB e P 51.00 0.10 0.91 51.25 -0.25 72.8 77 1.3 1.3
KLB e S 59.80 0.30 0.65 59.49 0.31 72.8 77 1.3 1.3
MRWA e P 82.20 0.20 0.70 81.68 0.52 295.9 340 -42.2 42.2
MRWA e S 112.80 0.20 0.63 113.17 -0.37 295.9 340 -40.3 40.3
MRWA e S2 118.00 0.50 0.29 118.25 -0.25 295.9 340 -23.9 23.9
MUN e P 52.90 0.10 0.90 52.50 0.40 80.5 250 1.1 1.1
MUN e S 61.20 0.30 0.65 61.60 -0.40 80.5 250 1.1 1.1
NWAO e P 61.10 0.20 0.75 61.10 -0.00 133.2 171 0.7 0.7
NWAO e S 76.00 0.20 0.67 76.18 -0.18 133.2 171 0.7 0.7
NWAO e SN 125.50 0.50 0.35 78.91 46.59 133.2 171 -40.3 40.3
RKG e PG 89.30 0.50 0.49 90.56 -1.26 313.8 180 0.3 0.3
RKG e S2 124.00 0.50 0.25 122.75 1.25 313.8 180 -23.9 23.9
Velocity Ratios
GOO KLB MUN BAL NWAO MRWA
GOO 1.68 0.00 0.00 1.71 1.69 1.72
0.16 0.00 0.00 0.09 0.11 0.04
KLB 0.00 1.76 0.00 1.63 1.60 1.70
0.00 0.04 0.00 0.08 0.10 0.03
MUN 0.00 0.00 1.61 1.86 1.80 1.76
0.00 0.00 0.03 0.11 0.13 0.04
BAL 1.71 1.63 1.86 1.70 0.00 1.73
0.09 0.08 0.11 0.01 0.00 0.04
NWAO 1.69 1.60 1.80 0.00 1.69 1.74
0.11 0.10 0.13 0.00 0.02 0.05
MRWA 1.72 1.70 1.76 1.73 1.74 1.71
0.04 0.03 0.04 0.04 0.05 0.01
Start
Date 1991-12-09
Origin Time 0721 30.47 +- 560.78
Zone 49
Easting 728.95 +-1888.77 Longitude 113.461
Northing 6305.38 +-1064.72 Latitude -33.366
Depth 5.00 +-1648.38 N
Arrival times = 5 S.D. = 3.677 Seismographs = 4
Nearest recorder = 300.5 km Gap = 305.1 deg Accuracy = D
Effects Code = Imax = 0 Fault =
300 km SW (238 deg) of MUN
WESTERN AUSTRALIA
274 km SW (234 deg) of PERTH
189 km NW (304 deg) of AUGUSTA
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.2
PHASE INFORMATION
DATA USED
BAL SG 149.00 1.00 0.63 150.34 -1.34 433.9 45 0.7 0.7
MRWA w SG 182.00 5.00 0.32 174.13 7.87 520.0 28 0.6 0.6
MUN e P 73.50 0.30 0.64 72.93 0.57 300.5 59 -42.2 42.2
MUN e S 100.00 0.50 0.52 104.57 -4.57 300.5 59 -40.3 40.3
NWAO e SG 131.60 0.50 0.51 128.81 2.79 355.9 83 0.8 0.8
Velocity Ratios
MUN
MUN 1.62
0.02
Start
Date 1991-12-11
Origin Time 0839 38.23 +- 1.11
Zone 50
Easting 479.51 +- 9.95 Longitude 116.786
Northing 6621.55 +- 6.74 Latitude -30.538
Depth 5.00 +- 12.77 N
Arrival times = 7 S.D. = 0.272 Seismographs = 4
Nearest recorder = 10.8 km Gap = 169.5 deg Accuracy = B
Effects Code = Imax = 0 Fault =
10 km NE ( 45 deg) of BAL
WESTERN AUSTRALIA
180 km NE ( 30 deg) of PERTH
7 km N ( 13 deg) of Ballidu
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.9
PHASE INFORMATION
DATA USED
BAL i-P 40.20 0.10 1.49 40.19 0.01 10.8 225 26.2 26.2
KLB e P 62.00 0.30 0.68 61.91 0.09 149.2 141 -30.8 30.8
KLB e S 79.30 0.20 0.67 79.47 -0.17 149.2 141 2.0 2.0
MRWA e P 64.50 0.30 0.68 64.12 0.38 165.0 332 -30.8 30.8
MRWA e S 83.10 0.30 0.61 83.62 -0.52 165.0 332 -23.9 23.9
MUN e P 65.00 0.50 0.61 64.66 0.34 168.8 198 -30.8 30.8
MUN e S 84.30 0.30 0.61 84.59 -0.29 168.8 198 -23.9 23.9
NWAO e SG 110.60 0.30 0.52 112.30 -1.70 268.1 171 1.1 1.1
Velocity Ratios
KLB MRWA MUN
KLB 1.73 0.00 0.00
0.03 0.00 0.00
MRWA 0.00 1.71 0.00
0.00 0.03 0.00
MUN 0.00 0.00 1.72
0.00 0.00 0.04
Start
Date 1991-12-11
Origin Time 1759 55.50 +- 1.03
Zone 50
Easting 571.48 +- 5.52 Longitude 117.744
Northing 6637.67 +- 7.00 Latitude -30.391
Depth 1.00 +- 13.76 C
Arrival times = 10 S.D. = 0.300 Seismographs = 7
Nearest recorder = 102.4 km Gap = 116.7 deg Accuracy = B
Effects Code = Imax = 0 Fault =
3 km N (351 deg) of BEAW
WESTERN AUSTRALIA
250 km NE ( 47 deg) of PERTH
14 km NW (298 deg) of Beacon
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.2
PHASE INFORMATION
DATA USED
BAL S-P 11.90 0.20 1.09 11.58 0.32 102.4 256 0.0 0.0
BAL i-P 71.90 0.20 1.09 72.20 -0.30 102.4 256 0.7 0.7
COOL e P 101.70 0.30 0.64 102.06 -0.36 330.7 100 -42.2 42.2
COOL e PG 109.50 0.30 0.64 109.44 0.06 330.7 100 0.3 0.3
COOL e S 135.00 0.50 0.52 136.71 -1.71 330.7 100 -40.3 40.3
FORR i+P 182.90 0.10 1.01 182.43 0.47 995.3 95 -42.2 42.2
FORR e S 276.00 0.10 0.64 276.62 -0.62 995.3 95 -40.3 40.3
KLB S-P 15.00 0.50 0.89 15.06 -0.06 133.1 179 0.0 0.0
KLB i+P 77.30 0.30 0.99 77.22 0.08 133.1 179 0.6 0.6
MRWA S-P 24.00 0.30 0.95 24.09 -0.09 213.1 307 0.0 0.0
MRWA e P 88.30 0.30 0.66 87.83 0.47 213.1 307 -42.2 42.2
MUN S-P 25.00 0.50 0.85 25.50 -0.50 228.8 219 0.0 0.0
MUN e P 90.30 0.30 0.66 89.72 0.58 228.8 219 -42.2 42.2
NWAO e P 96.50 0.30 0.64 96.54 -0.04 285.2 189 -42.2 42.2
NWAO e SN 125.50 0.50 0.35 127.09 -1.59 285.2 189 -40.3 40.3
NWAO S2 132.00 0.50 0.42 131.70 0.30 285.2 189 -23.9 23.9
NWAO i SG 134.50 0.30 0.83 134.29 0.21 285.2 189 0.3 0.3
RKG e P 120.00 0.20 0.67 118.69 1.31 468.4 188 -42.2 42.2
RKG SMP 129.00 0.30 0.44 130.72 -1.72 468.4 188 -59.6 30.9
RKG e S 165.00 0.50 0.50 165.65 -0.65 468.4 188 -40.3 40.3
WARB e P 182.00 0.30 0.57 182.13 -0.13 992.9 63 -42.2 42.2
WARB e S 276.00 0.50 0.46 276.11 -0.11 992.9 63 -40.3 40.3
WARB e SG 329.00 2.00 0.35 329.78 -0.78 992.9 63 0.1 0.1
Velocity Ratios
WARB
WARB 1.74
0.01
Start
Date 1991-12-13
Origin Time 0448 17.64 +- 3.44
Zone 50
Easting 533.10 +- 9.74 Longitude 117.360
Northing 6194.60 +- 11.92 Latitude -34.389
Depth 1.00 +- 19.24 G
Arrival times = 10 S.D. = 0.338 Seismographs = 7
Nearest recorder = 162.6 km Gap = 266.6 deg Accuracy = B
Effects Code = Imax = 0 Fault =
37 km NE ( 58 deg) of RKG
WESTERN AUSTRALIA
305 km SE (153 deg) of PERTH
82 km NW (325 deg) of ALBANY
20 km SW (240 deg) of Cranbrook
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 4.3
PHASE INFORMATION
DATA USED
BAL i+P 75.40 0.10 1.10 75.44 -0.04 423.8 351 -42.2 42.2
BAL e S 119.90 0.50 0.50 118.41 1.49 423.8 351 -40.3 40.3
COOL i+P 87.60 0.10 1.08 87.91 -0.31 526.7 43 -42.2 42.2
COOL e S 141.60 1.00 0.43 140.11 1.49 526.7 43 -40.3 40.3
FORR i+P 155.10 0.10 1.00 155.44 -0.34 1085.1 71 -42.2 42.2
FORR e S 258.50 0.10 0.63 257.69 0.81 1085.1 71 -40.3 40.3
KLB i-P 62.40 0.10 1.14 61.98 0.42 312.4 6 -42.2 42.2
KLB e S 95.00 0.30 0.58 94.96 0.04 312.4 6 -40.3 40.3
MBL e P 202.00 0.20 0.61 203.88 -1.88 1486.0 9 -42.2 42.2
MBL e S 342.00 1.00 0.40 342.03 -0.03 1486.0 9 -40.3 40.3
MBL SG 430.00 1.00 0.57 428.15 1.85 1486.0 9 0.0 0.0
MRWA i-P 95.60 0.10 1.07 95.25 0.35 587.6 346 -42.2 42.2
MRWA e S 156.00 1.00 0.42 152.89 3.11 587.6 346 -40.3 40.3
MUN i-P 59.00 0.10 1.15 59.03 -0.03 288.1 337 -42.2 42.2
MUN PMP 61.50 5.00 0.21 61.48 0.02 288.1 337 -31.9 31.9
MUN e S 91.60 0.30 0.58 89.83 1.77 288.1 337 -40.3 40.3
MUN SMS 95.30 5.00 0.18 95.30 0.00 288.1 337 -25.6 25.6
MUN SG 97.20 5.00 0.32 97.22 -0.02 288.1 337 0.2 0.2
NWAO i P 43.20 0.10 1.21 43.53 -0.33 162.6 355 -30.8 30.8
NWAO i S 62.50 0.10 1.09 62.56 -0.06 162.6 355 0.4 0.4
RKG S-P 4.40 10.00 0.54 4.28 0.12 37.8 237 0.0 0.0
WARB e P 177.00 0.40 0.53 178.76 -1.76 1278.1 46 -42.2 42.2
WARB e S 297.00 2.00 0.35 298.29 -1.29 1278.1 46 -40.3 40.3
WARB e SG 369.00 2.00 0.35 370.71 -1.71 1278.1 46 0.1 0.1
Velocity Ratios
NWAO KLB FORR
NWAO 1.76 1.69 1.75
0.01 0.04 0.00
KLB 1.69 1.73 1.76
0.04 0.01 0.01
FORR 1.75 1.76 1.75
0.00 0.01 0.00
Start
Date 1991-12-14
Origin Time 1643 6.69 +- 0.00
Zone 52
Easting 521.50 +- 0.00 Longitude 129.216
Northing 7063.94 +- 0.00 Latitude -26.545
Depth 5.00 +- 0.00 N
Arrival times = 4 S.D. = 1.149 Seismographs = 2
Nearest recorder = 259.8 km Gap = 274.7 deg Accuracy = D
Effects Code = Imax = 0 Fault =
259 km E ( 99 deg) of WARB
SOUTH AUSTRALIA
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
PHASE INFORMATION
DATA USED
FORR w P 85.00 2.00 0.43 71.42 13.58 484.5 193 -42.2 42.2
FORR w S 122.00 5.00 0.32 119.56 2.44 484.5 193 -40.3 40.3
FORR w SG 139.00 3.00 0.35 140.53 -1.53 484.5 193 0.7 0.7
WARB e P 44.00 0.20 0.71 44.24 -0.24 259.8 278 -42.2 42.2
WARB e S 72.50 0.30 0.59 72.25 0.25 259.8 278 -40.3 40.3
Velocity Ratios
WARB
WARB 1.76
0.02
Start
Date 1991-12-17
Origin Time 0546 49.18 +- 9.79
Zone 51
Easting 541.35 +- 155.19 Longitude 123.454
Northing 6105.36 +- 116.31 Latitude -35.194
Depth 5.00 +- 271.21 N
Arrival times = 8 S.D. = 0.372 Seismographs = 6
Nearest recorder = 524.3 km Gap = 299.7 deg Accuracy = C
Effects Code = Imax = 0 Fault =
448 km S (161 deg) of KMBL
792 km SE (119 deg) of PERTH
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.6
PHASE INFORMATION
DATA USED
BAL e S 230.50 1.00 0.41 230.79 -0.29 811.2 307 -40.3 40.3
COOL e P 118.70 0.30 0.61 118.71 -0.01 524.3 335 -42.2 42.2
COOL e S 170.60 0.30 0.55 170.42 0.18 524.3 335 -40.3 40.3
KLB e S 200.00 1.00 0.42 199.73 0.27 663.7 305 -40.3 40.3
MRWA e S 262.50 2.00 0.35 263.58 -1.08 967.0 311 -40.3 40.3
MUN e S 220.80 0.50 0.48 220.41 0.39 761.9 296 -40.3 40.3
RKG e P 127.00 0.50 0.54 127.06 -0.06 593.5 274 -42.2 42.2
RKG e S 185.00 1.00 0.42 184.96 0.04 593.5 274 -40.3 40.3
WARB e S 80.00 1.00 0.40 279.96-199.96 1044.6 17 -40.3 40.3
Velocity Ratios
COOL RKG
COOL 1.75 0.00
0.01 0.00
RKG 0.00 1.75
0.00 0.02
Start
Date 1991-12-20
Origin Time 0110 26.78 +- 132.25
Zone 52
Easting 487.94 +-1187.35 Longitude 128.873
Northing 6535.02 +- 912.88 Latitude -31.319
Depth 5.00 +- 978.05 N
Arrival times = 5 S.D. = 0.176 Seismographs = 2
Nearest recorder = 96.1 km Gap = 328.2 deg Accuracy = D
Effects Code = Imax = 0 Fault =
96 km SE (127 deg) of FORR
WESTERN AUSTRALIA
69 km NE ( 55 deg) of EUCLA
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.3
PHASE INFORMATION
DATA USED
FORR S-P 10.80 2.00 0.69 10.89 -0.09 96.1 306 0.0 0.0
FORR i-P 42.50 0.10 1.26 42.48 0.02 96.1 306 3.3 3.3
WARB w P 106.00 5.00 0.35 106.59 -0.59 609.3 338 -42.2 42.2
WARB e S 166.00 0.50 0.49 165.91 0.09 609.3 338 -40.3 40.3
WARB e SG 195.00 2.00 0.37 195.09 -0.09 609.3 338 0.5 0.5
Velocity Ratios
WARB
WARB 1.76
0.13
Start
Date 1991-12-20
Origin Time 1139 32.38 +- 1.22
Zone 50
Easting 509.67 +- 10.29 Longitude 117.101
Northing 6591.94 +- 8.34 Latitude -30.805
Depth 5.15 +- 23.45
Arrival times = 6 S.D. = 0.060 Seismographs = 4
Nearest recorder = 43.7 km Gap = 175.9 deg Accuracy = A
Effects Code = Imax = 0 Fault =
2 km W (279 deg) of CAS
WESTERN AUSTRALIA
174 km NE ( 43 deg) of PERTH
5 km SW (215 deg) of Cadoux
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 1.8
PHASE INFORMATION
DATA USED
BAL e P 39.60 0.10 0.94 39.57 0.03 43.7 300 7.1 7.1
BAL e S 44.50 0.20 0.74 44.55 -0.05 43.7 300 7.1 7.1
KLB e P 50.00 0.30 0.70 49.92 0.08 107.4 144 2.9 2.9
KLB e S 62.00 0.20 0.69 62.08 -0.08 107.4 144 2.9 2.9
MRWA e P 64.30 0.20 0.72 63.35 0.95 205.7 328 -42.2 42.2
MRWA i S2 88.00 0.20 0.51 88.03 -0.03 205.7 328 -23.9 23.9
MUN e P 58.00 0.30 0.68 56.89 1.11 155.3 212 -30.8 30.8
MUN e S 75.30 0.20 0.67 75.29 0.01 155.3 212 -23.9 23.9
NWAO e SG 97.20 0.50 0.53 97.43 -0.23 235.4 177 1.3 1.3
Velocity Ratios
BAL KLB
BAL 1.68 1.68
0.05 0.11
KLB 1.68 1.68
0.11 0.04
Start
Date 1991-12-21
Origin Time 0631 17.25 +- 3.57
Zone 51
Easting 353.52 +- 32.93 Longitude 121.464
Northing 6555.12 +- 49.47 Latitude -31.129
Depth 5.00 +- 72.79 N
Arrival times = 7 S.D. = 0.317 Seismographs = 4
Nearest recorder = 40.8 km Gap = 232.2 deg Accuracy = C
Effects Code = Imax = 0 Fault =
21 km W (285 deg) of KLLS
WESTERN AUSTRALIA
541 km E ( 82 deg) of PERTH
42 km S (181 deg) of KALGOORLIE
20 km W (286 deg) of Kambalda
COOL -0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.2
PHASE INFORMATION
DATA USED
BAL e SG 144.00 1.00 0.44 144.13 -0.13 459.3 276 0.7 0.7
COOL S-P 4.50 0.10 1.36 4.66 -0.16 40.8 311 0.0 0.0
COOL i-P 24.10 0.10 1.36 23.97 0.13 40.8 311 7.7 7.7
COOL e S 28.60 0.20 0.74 28.62 -0.02 40.8 311 7.7 7.7
KLB w S 79.50 2.00 0.40 103.13 -23.63 356.4 260 -40.3 40.3
KLB e SG 107.00 1.00 0.45 115.72 -8.72 356.4 260 0.9 0.9
MRWA e P 93.00 1.00 0.47 92.13 0.87 568.7 290 -42.2 42.2
MRWA w S 149.00 2.00 0.38 147.81 1.19 568.7 290 -40.3 40.3
WARB w P 113.00 1.00 0.47 113.58 -0.58 745.9 43 -42.2 42.2
WARB w S 185.00 4.00 0.32 185.15 -0.15 745.9 43 -40.3 40.3
Velocity Ratios
COOL WARB
COOL 1.66 1.76
0.05 0.07
WARB 1.76 1.75
0.07 0.06
Start
Date 1991-12-22
Origin Time 0412 19.49 +- 8.99
Zone 50
Easting 516.21 +- 20.10 Longitude 117.172
Northing 6439.79 +- 83.00 Latitude -32.178
Depth 5.00 +- 49.42 N
Arrival times = 6 S.D. = 0.363 Seismographs = 3
Nearest recorder = 85.5 km Gap = 242.9 deg Accuracy = B
Effects Code = Imax = 0 Fault =
24 km E (108 deg) of BEVE
WESTERN AUSTRALIA
127 km E (102 deg) of PERTH
24 km E (106 deg) of Beverley
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
PHASE INFORMATION
DATA USED
BAL e P 48.50 1.00 0.53 47.34 1.16 179.7 345 -42.2 42.2
BAL i S 68.00 0.20 0.94 68.16 -0.16 179.7 345 -40.3 40.3
KLB e P 33.50 0.30 0.72 33.47 0.03 85.5 40 3.5 3.5
KLB e S 43.00 1.00 0.51 43.17 -0.17 85.5 40 3.5 3.5
MUN i+P 34.60 0.10 1.27 34.79 -0.19 93.6 283 3.2 3.2
MUN i S 45.50 0.10 1.14 45.39 0.11 93.6 283 3.2 3.2
Velocity Ratios
KLB MUN BAL
KLB 1.68 0.00 0.00
0.11 0.00 0.00
MUN 0.00 1.72 1.62
0.00 0.02 0.16
BAL 0.00 1.62 1.67
0.00 0.16 0.07
Start
Date 1991-12-22
Origin Time 1601 45.07 +- 21.64
Zone 52
Easting 451.59 +- 257.74 Longitude 128.547
Northing 8188.62 +- 109.94 Latitude -16.383
Depth 5.00 +- 393.85 N
Arrival times = 6 S.D. = 1.064 Seismographs = 3
Nearest recorder = 73.9 km Gap = 171.4 deg Accuracy = C
Effects Code = Imax = 0 Fault =
73 km S (198 deg) of KNA
WESTERN AUSTRALIA
70 km S (196 deg) of Kununurra
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.8
PHASE INFORMATION
DATA USED
KNA S-P 9.50 0.50 0.94 8.38 1.12 73.9 18 0.0 0.0
KNA e P 56.50 0.10 0.90 57.15 -0.65 73.9 18 4.0 4.0
KNA e S 66.00 0.50 0.59 65.53 0.47 73.9 18 4.0 4.0
MBL e P 180.00 1.00 0.44 179.76 0.24 1063.4 238 -42.2 42.2
MBL e S 280.00 1.00 0.40 279.75 0.25 1063.4 238 -40.3 40.3
WARB e P 193.00 1.00 0.44 184.56 8.44 1102.8 189 -42.2 42.2
WARB e S 290.00 1.00 0.40 288.10 1.90 1102.8 189 -40.3 40.3
Velocity Ratios
KNA MBL
KNA 1.83 1.73
0.06 0.03
MBL 1.73 1.74
0.03 0.02
Start
Date 1991-12-24
Origin Time 2006 23.32 +- 56.44
Zone 52
Easting 201.96 +- 191.61 Longitude 126.197
Northing 8086.34 +- 171.67 Latitude -17.289
Depth 5.00 +- 407.80 N
Arrival times = 7 S.D. = 4.113 Seismographs = 4
Nearest recorder = 322.9 km Gap = 171.5 deg Accuracy = D
Effects Code = Imax = 0 Fault =
322 km SW (237 deg) of KNA
WESTERN AUSTRALIA
117 km NE ( 33 deg) of FITZROY CROSSING
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.5
PHASE INFORMATION
DATA USED
KNA e P 67.00 0.20 0.69 68.47 -1.47 322.9 58 -42.2 42.2
KNA e S 103.00 0.50 0.52 102.11 0.89 322.9 58 -40.3 40.3
MBL w P 125.00 3.00 0.37 125.95 -0.95 798.3 236 -42.2 42.2
MBL e S 201.00 1.00 0.41 202.20 -1.20 798.3 236 -40.3 40.3
MTN w S 185.00 5.00 0.31 186.31 -1.31 722.9 47 -40.3 40.3
WARB w P 153.00 0.10 0.72 148.74 4.26 986.5 177 -42.2 42.2
WARB w S 232.00 2.00 0.36 241.87 -9.87 986.5 177 -40.3 40.3
Velocity Ratios
KNA MBL WARB
KNA 1.82 1.69 1.50
0.02 0.13 0.03
MBL 1.69 1.75 0.00
0.13 0.06 0.00
WARB 1.50 0.00 1.61
0.03 0.00 0.02
Start
Date 1991-12-26
Origin Time 1314 41.15 +- 1.89
Zone 50
Easting 574.03 +- 7.55 Longitude 117.771
Northing 6636.20 +- 10.68 Latitude -30.404
Depth 8.30 +- 25.82
Arrival times = 7 S.D. = 0.270 Seismographs = 5
Nearest recorder = 104.5 km Gap = 153.1 deg Accuracy = B
Effects Code = Imax = 0 Fault =
2 km NE ( 49 deg) of BEAW
WESTERN AUSTRALIA
251 km NE ( 47 deg) of PERTH
11 km NW (298 deg) of Beacon
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.2
PHASE INFORMATION
DATA USED
BAL i-P 58.20 0.10 1.26 58.26 -0.06 104.5 257 4.7 4.7
BAL i S 70.20 0.10 1.13 70.13 0.07 104.5 257 4.7 4.7
COOL w P 87.00 2.00 0.44 86.58 0.42 327.9 100 -42.2 42.2
COOL e PG 95.30 0.50 0.57 94.66 0.64 327.9 100 1.5 1.5
COOL e SG 131.50 1.00 0.45 131.76 -0.26 327.9 100 1.5 1.5
KLB i P 62.00 0.10 1.23 62.10 -0.10 131.7 180 -30.8 30.8
KLB i S 77.90 0.20 0.96 77.60 0.30 131.7 180 3.7 3.7
MRWA e P 73.40 0.40 0.62 73.03 0.37 216.0 307 -42.2 42.2
MRWA e S 97.90 0.50 0.54 96.88 1.02 216.0 307 -40.3 40.3
MRWA e SG 100.00 0.50 0.54 100.88 -0.88 216.0 307 2.3 2.3
MUN e P 76.00 0.20 0.71 74.64 1.36 229.4 219 -42.2 42.2
MUN e SG 103.80 0.50 0.53 104.55 -0.75 229.4 219 2.1 2.1
Velocity Ratios
BAL KLB
BAL 1.70 2.03
0.02 0.20
KLB 2.03 1.76
0.20 0.02
Start
Date 1991-12-30
Origin Time 0357 47.80 +- 3.28
Zone 50
Easting 597.93 +- 20.75 Longitude 118.056
Northing 6274.91 +- 4.84 Latitude -33.661
Depth 1.00 +- 16.41 C
Arrival times = 8 S.D. = 0.234 Seismographs = 5
Nearest recorder = 111.8 km Gap = 230.3 deg Accuracy = B
Effects Code = Imax = 0 Fault =
24 km NW (333 deg) of GNOC
WESTERN AUSTRALIA
281 km SE (133 deg) of PERTH
150 km N ( 7 deg) of ALBANY
30 km N ( 10 deg) of Gnowangerup
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.2
PHASE INFORMATION
DATA USED
BAL e PG 106.50 1.00 0.50 106.80 -0.30 361.7 339 0.2 0.2
BAL e SG 145.00 2.00 0.39 147.71 -2.71 361.7 339 0.2 0.2
KLB e P 82.50 0.20 0.71 82.30 0.20 231.1 353 -42.2 42.2
KLB e S 108.20 0.30 0.59 108.00 0.20 231.1 353 -40.3 40.3
MRWA w P 121.00 2.00 0.42 118.43 2.57 529.9 337 -42.2 42.2
MRWA e S 171.20 0.20 0.59 170.91 0.29 529.9 337 -40.3 40.3
MRWA e SG 191.50 0.50 0.49 194.18 -2.68 529.9 337 0.1 0.1
MUN e P 87.50 0.30 0.65 85.11 2.39 254.4 316 -42.2 42.2
MUN e S 113.80 0.30 0.59 112.90 0.90 254.4 316 -40.3 40.3
NWAO e P 65.70 0.20 0.76 66.04 -0.34 111.8 316 0.6 0.6
NWAO e S 78.70 0.20 0.68 78.69 0.01 111.8 316 0.6 0.6
RKG i P 70.30 0.20 1.07 70.45 -0.15 139.5 223 -30.8 30.8
RKG i S 86.50 0.20 0.96 86.33 0.17 139.5 223 0.5 0.5
Velocity Ratios
NWAO RKG KLB
NWAO 1.73 0.00 1.76
0.03 0.00 0.07
RKG 0.00 1.72 1.78
0.00 0.02 0.10
KLB 1.76 1.78 1.74
0.07 0.10 0.02