Data Report
Bulletin / 1993-07
Contributed by CUPWA
Date 1993-07-03 Event type = BL
Origin Time 0909 30.27 +- 76.30
Zone 51
Easting 431.24 +-1025.47 Longitude 122.293
Northing 6779.17 +- 916.35 Latitude -29.114
Depth 5.00 +-1057.37 N
Arrival times = 5 S.D. = 0.715 Seismographs = 3
Nearest recorder = 225.2 km Gap = 262.6 deg Accuracy = D
Effects Code = Imax = 0 Fault =
179 km NE ( 22 deg) of KLKB
WESTERN AUSTRALIA
693 km NE ( 65 deg) of PERTH
198 km NE ( 24 deg) of KALGOORLIE
45 km SE (148 deg) of Mt Morgan Mine
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
COOL e P 63.90 0.30 0.66 63.64 0.26 225.2 209 -42.2 42.2
COOL e S 88.80 0.20 0.64 88.56 0.24 225.2 209 -40.3 40.3
MEEK e SG 156.50 0.50 0.50 155.88 0.62 454.7 306 0.7 0.7
MRWA w P 109.00 2.00 0.42 110.60 -1.60 613.7 267 -42.2 42.2
MRWA e S 170.00 0.30 0.54 170.31 -0.31 613.7 267 -40.3 40.3
5 times used, S = 0.715
Deferred Data
MEEK e S 156.50 0.50 0.50 136.87 19.63 454.7 306 -40.3 40.3
Velocity Ratios
COOL MRWA
COOL 1.74 1.80
0.02 0.11
MRWA 1.80 1.77
0.11 0.05
Date 1993-07-06
Origin Time 2359 34.71 +- 4.44
Zone 51
Easting 846.34 +- 12.22 Longitude 126.368
Northing 7500.27 +- 18.35 Latitude -22.569
Depth 5.00 +- 35.73 N
Arrival times = 12 S.D. = 1.157 Seismographs = 7
Nearest recorder = 693.1 km Gap = 96.9 deg Accuracy = C
Effects Code = Imax = 0 Fault =
396 km N (356 deg) of WBN
WESTERN AUSTRALIA
Record Dur Sync Unc Resp Seismometer Recorder Pol
ASPA 0.00 Seismograph details unknown
COOL -0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.3
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBL e P 124.40 0.50 0.53 124.64 -0.24 693.1 281 -42.2 42.2
MBL e S 191.50 0.50 0.48 191.46 0.04 693.1 281 -40.3 40.3
ASPA i-P 137.20 0.10 1.04 135.98 1.22 786.6 100 -42.2 42.2
ASPA e PG 161.40 0.30 0.58 163.04 -1.64 786.6 100 0.4 0.4
KNA e P 137.00 0.30 0.58 137.29 -0.29 797.9 18 -42.2 42.2
KNA e S 215.00 1.00 0.41 213.50 1.50 797.9 18 -40.3 40.3
WRA e P 145.80 0.30 0.58 147.69 -1.89 883.6 72 -42.2 42.2
WRA e S 231.00 0.50 0.47 231.59 -0.59 883.6 72 -40.3 40.3
MEEK e P 150.50 0.50 0.52 150.32 0.18 905.3 238 -42.2 42.2
MEEK e S 236.00 1.00 0.41 236.18 -0.18 905.3 238 -40.3 40.3
FORT e S 241.00 1.00 0.41 241.08 -0.08 928.9 169 -40.3 40.3
COOL e P 168.00 0.50 0.51 168.69 -0.69 1057.2 208 -42.2 42.2
12 times used, S = 1.157
Deferred Data
ASPA e S 205.70 0.30 0.52 211.21 -5.51 786.6 100 -40.3 40.3
COOL e S 264.50 0.50 0.46 268.16 -3.66 1057.2 208 -40.3 40.3
MTN e P 184.50 0.50 0.51 185.17 -0.67 1193.9 25 -42.2 42.2
MTN e S 297.80 1.00 0.40 296.85 0.95 1193.9 25 -40.3 40.3
MRWA e P 193.10 0.20 0.61 194.90 -1.80 1274.2 232 -42.2 42.2
MRWA e S 312.00 1.00 0.40 313.80 -1.80 1274.2 232 -40.3 40.3
BAL e P 197.00 0.30 0.56 199.35 -2.35 1311.0 224 -42.2 42.2
BAL e S 318.00 0.50 0.46 321.54 -3.54 1311.0 224 -40.3 40.3
KLB e P 197.30 0.30 0.56 199.73 -2.43 1314.1 218 -42.2 42.2
KLB e S 320.00 0.50 0.46 322.20 -2.20 1314.1 218 -40.3 40.3
MUN e P 213.00 1.00 0.44 215.97 -2.97 1448.4 221 -42.2 42.2
MUN e S 346.50 1.00 0.40 350.47 -3.97 1448.4 221 -40.3 40.3
NWAO e P 214.50 1.00 0.44 217.15 -2.65 1458.2 215 -42.2 42.2
NWAO e S 349.40 0.50 0.46 352.52 -3.12 1458.2 215 -40.3 40.3
Velocity Ratios
MBL KNA WRA MEEK
MBL 1.75 0.00 1.85 1.70
0.02 0.00 0.12 0.13
KNA 0.00 1.76 0.00 0.00
0.00 0.01 0.00 0.00
WRA 1.85 0.00 1.77 0.00
0.12 0.00 0.01 0.00
MEEK 1.70 0.00 0.00 1.74
0.13 0.00 0.00 0.02
Date 1993-07-09
Origin Time 1006 27.97 +- 2.12
Zone 50
Easting 369.55 +- 12.39 Longitude 115.713
Northing 7294.42 +- 6.45 Latitude -24.458
Depth 5.00 +- 21.14 N
Arrival times = 19 S.D. = 0.779 Seismographs = 11
Nearest recorder = 213.0 km Gap = 177.1 deg Accuracy = B
Effects Code = Imax = 0 Fault =
108 km NE ( 58 deg) of LP02
WESTERN AUSTRALIA
830 km N (359 deg) of PERTH
212 km E ( 78 deg) of CARNARVON
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.6
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
NANU i+P 59.40 0.10 1.18 59.81 -0.41 213.0 354 -42.2 42.2
MEEK i+P 80.50 0.20 0.97 79.87 0.63 378.4 130 -42.2 42.2
MRWA e P 98.00 0.20 0.66 97.93 0.07 528.0 177 -42.2 42.2
MBL e P 101.50 0.50 0.55 101.64 -0.14 558.7 49 -42.2 42.2
MBL e S 156.00 1.00 0.43 156.42 -0.42 558.7 49 -40.3 40.3
BAL e P 117.50 0.50 0.53 117.30 0.20 688.1 172 -42.2 42.2
BAL e S 184.00 0.50 0.48 183.67 0.33 688.1 172 -40.3 40.3
KLB e P 133.30 0.50 0.52 132.69 0.61 815.4 166 -42.2 42.2
KLB e S 210.30 0.50 0.47 210.47 -0.17 815.4 166 -40.3 40.3
MUN e P 136.10 0.20 0.63 135.00 1.10 834.6 176 -42.2 42.2
MUN e S 214.00 0.50 0.47 214.50 -0.50 834.6 176 -40.3 40.3
MUN e SG 257.00 0.50 0.47 258.52 -1.52 834.6 176 0.4 0.4
COOL e P 141.50 0.50 0.52 141.84 -0.34 890.9 144 -42.2 42.2
COOL e S 225.00 0.50 0.47 226.40 -1.40 890.9 144 -40.3 40.3
NWAO e P 149.90 0.50 0.52 148.94 0.96 949.9 171 -42.2 42.2
NWAO e S 238.40 0.50 0.46 238.77 -0.37 949.9 171 -40.3 40.3
WARB S-P 106.00 2.00 0.55 105.08 0.92 1120.0 102 0.0 0.0
FORT e P 203.00 0.50 0.51 204.62 -1.62 1410.4 122 -42.2 42.2
FORT e S 336.00 1.00 0.40 335.71 0.29 1410.4 122 -40.3 40.3
19 times used, S = 0.779
Deferred Data
MEEK e SG 129.00 1.00 0.44 132.52 -3.52 378.4 130 0.8 0.8
MRWA e S 148.00 0.50 0.49 149.96 -1.96 528.0 177 -40.3 40.3
KLB e SG 251.00 1.00 0.41 253.23 -2.23 815.4 166 0.4 0.4
RKG e SG 332.00 3.00 0.32 339.42 -7.42 1127.5 173 0.3 0.3
Velocity Ratios
MBL BAL KLB MUN COOL NWAO FORT
MBL 1.74 0.00 1.71 1.68 1.73 1.70 1.77
0.03 0.00 0.10 0.08 0.08 0.07 0.04
BAL 0.00 1.74 1.66 1.61 1.71 1.68 1.78
0.00 0.02 0.18 0.12 0.12 0.09 0.04
KLB 1.71 1.66 1.73 0.00 0.00 1.69 1.80
0.10 0.18 0.01 0.00 0.00 0.17 0.05
MUN 1.68 1.61 0.00 1.72 0.00 1.77 1.82
0.08 0.12 0.00 0.01 0.00 0.17 0.04
COOL 1.73 1.71 0.00 0.00 1.74 0.00 1.80
0.08 0.12 0.00 0.00 0.01 0.00 0.05
NWAO 1.70 1.68 1.69 1.77 0.00 1.73 1.84
0.07 0.09 0.17 0.17 0.00 0.01 0.06
FORT 1.77 1.78 1.80 1.82 1.80 1.84 1.76
0.04 0.04 0.05 0.04 0.05 0.06 0.01
Date 1993-07-10
Origin Time 1231 7.08 +- 6.79
Zone 49
Easting 769.02 +- 178.53 Longitude 113.561
Northing 7856.40 +- 184.11 Latitude -19.368
Depth 5.00 +- 303.46 N
Arrival times = 8 S.D. = 0.843 Seismographs = 4
Nearest recorder = 405.9 km Gap = 300.2 deg Accuracy = C
Effects Code = Imax = 0 Fault =
343 km NW (314 deg) of LP05
WESTERN AUSTRALIA
360 km W (293 deg) of Dampier
289 km N (348 deg) of Exmouth
Record Dur Sync Unc Resp Seismometer Recorder Pol
MRWA -0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.5
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
NANU i+P 63.00 0.10 1.11 62.26 0.74 405.9 150 -42.2 42.2
NANU e S 103.00 0.50 0.51 103.34 -0.34 405.9 150 -40.3 40.3
MBL e P 95.00 1.00 0.46 96.33 -1.33 687.6 108 -42.2 42.2
MBL e S 163.00 1.00 0.42 162.66 0.34 687.6 108 -40.3 40.3
MEEK e P 129.40 0.30 0.57 129.31 0.09 960.0 148 -42.2 42.2
MEEK e S 221.30 0.50 0.46 220.07 1.23 960.0 148 -40.3 40.3
MRWA e P 148.30 0.50 0.51 148.65 -0.35 1120.1 167 -42.2 42.2
MRWA e S 253.00 0.50 0.46 253.73 -0.73 1120.1 167 -40.3 40.3
8 times used, S = 0.843
Deferred Data
BAL e P 169.00 0.50 0.51 168.81 0.19 1286.8 166 -42.2 42.2
BAL e S 291.00 1.00 0.40 288.83 2.17 1286.8 166 -40.3 40.3
KLB e S 316.30 0.50 0.46 317.14 -0.84 1421.3 163 -40.3 40.3
MUN e P 184.00 0.50 0.51 185.38 -1.38 1423.9 169 -42.2 42.2
MUN e S 319.00 1.00 0.40 317.69 1.31 1423.9 169 -40.3 40.3
COOL e P 193.00 1.00 0.44 193.81 -0.81 1493.4 150 -42.2 42.2
COOL e S 329.00 1.00 0.40 332.36 -3.36 1493.4 150 -40.3 40.3
WARB S-P 146.80 1.00 0.63 144.31 2.49 1557.7 121 0.0 0.0
Velocity Ratios
NANU MBL MEEK MRWA
NANU 1.72 1.88 1.78 1.76
0.01 0.12 0.03 0.02
MBL 1.88 1.77 1.69 1.69
0.12 0.03 0.11 0.08
MEEK 1.78 1.69 1.75 1.68
0.03 0.11 0.01 0.13
MRWA 1.76 1.69 1.68 1.74
0.02 0.08 0.13 0.01
Date 1993-07-11
Origin Time 0114 35.59 +- 1.61
Zone 50
Easting 510.96 +- 9.34 Longitude 117.115
Northing 6598.58 +- 9.94 Latitude -30.746
Depth 2.35 +- 20.72
Arrival times = 8 S.D. = 0.388 Seismographs = 4
Nearest recorder = 42.0 km Gap = 179.7 deg Accuracy = A
Effects Code = Imax = 0 Fault =
3 km NW (321 deg) of CADX
WESTERN AUSTRALIA
180 km NE ( 42 deg) of PERTH
3 km NW (331 deg) of Cadoux
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.5
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BAL e P 42.20 0.20 0.82 42.45 -0.25 42.0 291 3.6 3.6
BAL e S 47.30 0.20 0.74 47.21 0.09 42.0 291 3.6 3.6
KLB e P 54.70 0.50 0.63 53.89 0.81 112.2 147 1.4 1.4
KLB e S 66.00 0.30 0.63 66.58 -0.58 112.2 147 1.4 1.4
MUN e P 61.00 1.00 0.53 61.22 -0.22 161.5 211 -30.8 30.8
MUN e S 80.40 0.30 0.61 80.22 0.18 161.5 211 0.9 0.9
MRWA e P 66.30 0.20 0.72 66.27 0.03 200.7 327 -42.2 42.2
MRWA e S 89.20 0.20 0.65 89.16 0.04 200.7 327 -40.3 40.3
8 times used, S = 0.388
Velocity Ratios
BAL KLB MUN MRWA
BAL 1.77 1.50 1.76 1.74
0.09 0.13 0.15 0.05
KLB 1.50 1.59 0.00 2.00
0.13 0.06 0.00 0.17
MUN 1.76 0.00 1.76 0.00
0.15 0.00 0.08 0.00
MRWA 1.74 2.00 0.00 1.75
0.05 0.17 0.00 0.02
Date 1993-07-16
Origin Time 2208 39.28 +- 10.46
Zone 50
Easting 600.85 +- 56.29 Longitude 118.091
Northing 6243.77 +- 15.37 Latitude -33.942
Depth 5.00 +- 51.35 N
Arrival times = 8 S.D. = 0.894 Seismographs = 4
Nearest recorder = 121.5 km Gap = 241.4 deg Accuracy = B
Effects Code = Imax = 0 Fault =
1 km E (105 deg) of GNOT
WESTERN AUSTRALIA
304 km SE (137 deg) of PERTH
119 km N ( 10 deg) of ALBANY
9 km E ( 99 deg) of Gnowangerup
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
RKG e P 58.80 0.20 0.76 59.08 -0.28 121.5 234 -30.8 30.8
RKG e S 73.70 0.50 0.57 72.87 0.83 121.5 234 2.5 2.5
NWAO e P 60.30 0.10 0.86 61.39 -1.09 137.9 324 -30.8 30.8
NWAO e S 77.30 0.20 0.67 77.42 -0.12 137.9 324 2.2 2.2
KLB e P 78.00 0.50 0.59 77.13 0.87 262.4 353 -42.2 42.2
KLB e S 107.00 1.00 0.46 105.36 1.64 262.4 353 -40.3 40.3
MUN e P 79.00 0.30 0.65 79.24 -0.24 279.9 320 -42.2 42.2
MUN e S 110.00 1.00 0.46 109.04 0.96 279.9 320 -40.3 40.3
8 times used, S = 0.894
Velocity Ratios
RKG NWAO KLB MUN
RKG 1.76 0.00 1.73 1.80
0.04 0.00 0.15 0.12
NWAO 0.00 1.81 1.68 1.75
0.00 0.02 0.13 0.10
KLB 1.73 1.68 1.75 0.00
0.15 0.13 0.05 0.00
MUN 1.80 1.75 0.00 1.78
0.12 0.10 0.00 0.04
Date 1993-07-17
Origin Time 1350 39.26 +- 3.61
Zone 50
Easting 473.58 +- 53.65 Longitude 116.726
Northing 6660.01 +- 11.91 Latitude -30.191
Depth 1.00 +- 46.85 G
Arrival times = 6 S.D. = 0.205 Seismographs = 4
Nearest recorder = 46.1 km Gap = 181.2 deg Accuracy = B
Effects Code = Imax = 0 Fault =
29 km NW (332 deg) of DAM
WESTERN AUSTRALIA
212 km NE ( 23 deg) of PERTH
11 km NE ( 28 deg) of Dalwallinu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.5
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BAL e P 46.60 0.30 0.75 46.78 -0.18 46.1 182 1.6 1.6
BAL i S 51.90 0.10 1.21 52.00 -0.10 46.1 182 1.6 1.6
MRWA i P 60.30 0.10 1.23 60.28 0.02 128.9 326 0.6 0.6
MRWA e S 74.80 0.30 0.62 74.85 -0.05 128.9 326 0.6 0.6
KLB e S 89.80 0.50 0.55 89.55 0.25 184.0 147 -40.3 40.3
MUN e SG 96.20 0.50 0.54 95.65 0.55 204.1 193 0.4 0.4
6 times used, S = 0.205
Deferred Data
MUN e S 96.20 0.50 0.54 93.78 2.42 204.1 193 -40.3 40.3
Velocity Ratios
BAL MRWA
BAL 1.72 1.67
0.09 0.08
MRWA 1.67 1.69
0.08 0.02
Date 1993-07-20
Origin Time 1951 11.18 +- 34.68
Zone 50
Easting 882.02 +- 632.69 Longitude 120.560
Northing 8283.42 +-1631.23 Latitude -15.498
Depth 5.00 +-2213.71 N
Arrival times = 8 S.D. = 0.984 Seismographs = 4
Nearest recorder = 632.0 km Gap = 333.5 deg Accuracy = D
Effects Code = Imax = 0 Fault =
600 km N ( 19 deg) of RP02
WESTERN AUSTRALIA
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.8
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBL e P 93.00 0.30 0.60 93.71 -0.71 632.0 186 -42.2 42.2
MBL e S 155.00 0.50 0.48 155.06 -0.06 632.0 186 -40.3 40.3
NANU e P 132.00 1.00 0.45 131.47 0.53 944.4 213 -42.2 42.2
NANU e S 221.00 1.00 0.40 220.79 0.21 944.4 213 -40.3 40.3
MEEK e P 169.50 0.30 0.56 168.54 0.96 1250.5 188 -42.2 42.2
MEEK e S 287.00 1.00 0.40 285.33 1.67 1250.5 188 -40.3 40.3
MRWA e P 209.00 0.30 0.56 209.56 -0.56 1590.0 196 -42.2 42.2
MRWA e S 355.00 1.00 0.40 356.76 -1.76 1590.0 196 -40.3 40.3
8 times used, S = 0.984
Deferred Data
WARB e S-P 118.00 1.00 0.44 125.58 -7.58 1348.7 153 0.0 0.0
Velocity Ratios
MBL NANU MEEK MRWA
MBL 1.76 1.69 1.73 1.72
0.01 0.10 0.03 0.02
NANU 1.69 1.74 1.76 1.74
0.10 0.02 0.12 0.06
MEEK 1.73 1.76 1.74 1.72
0.03 0.12 0.01 0.08
MRWA 1.72 1.74 1.72 1.74
0.02 0.06 0.08 0.01
Date 1993-07-21
Origin Time 1255 59.17 +- 19.55
Zone 51
Easting 267.27 +- 93.85 Longitude 120.762
Northing 7680.97 +- 145.94 Latitude -20.957
Depth 5.00 +- 79.90 N
Arrival times = 6 S.D. = 1.180 Seismographs = 3
Nearest recorder = 99.1 km Gap = 302.0 deg Accuracy = D
Effects Code = Imax = 0 Fault =
99 km E ( 77 deg) of MBL
WESTERN AUSTRALIA
239 km E (108 deg) of PORT HEDLAND
108 km E ( 78 deg) of Marble Bar
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBL e P 74.40 0.50 0.64 75.36 -0.96 99.1 256 3.0 3.0
NANU e P 134.00 1.00 0.47 134.63 -0.63 573.7 251 -42.2 42.2
NANU e S 190.50 0.50 0.49 190.74 -0.24 573.7 251 -40.3 40.3
NANU e SG 218.00 0.50 0.49 217.64 0.36 573.7 251 0.5 0.5
MEEK e P 147.70 0.50 0.54 145.94 1.76 666.8 198 -42.2 42.2
MEEK e S 209.00 0.50 0.48 210.43 -1.43 666.8 198 -40.3 40.3
6 times used, S = 1.180
Velocity Ratios
NANU MEEK
NANU 1.76 0.00
0.03 0.00
MEEK 0.00 1.69
0.00 0.02
Date 1993-07-22
Origin Time 1928 56.94 +- 0.86
Zone 50
Easting 450.36 +- 6.63 Longitude 116.481
Northing 6595.33 +- 4.38 Latitude -30.774
Depth 5.12 +- 8.76
Arrival times = 10 S.D. = 0.341 Seismographs = 6
Nearest recorder = 28.5 km Gap = 153.9 deg Accuracy = A
Effects Code = Imax = 0 Fault =
28 km SW (229 deg) of BAL
WESTERN AUSTRALIA
144 km NE ( 25 deg) of PERTH
34 km SW (235 deg) of Ballidu
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.2
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BAL i-P 61.60 0.10 1.39 61.67 -0.07 28.5 49 10.8 10.8
BAL e S 65.00 0.20 0.76 64.94 0.06 28.5 49 10.8 10.8
MUN e P 79.00 0.30 0.69 78.76 0.24 136.0 190 -30.8 30.8
MUN e S 94.00 0.30 0.62 94.54 -0.54 136.0 190 2.3 2.3
KLB e P 81.00 0.50 0.62 80.99 0.01 151.9 127 -30.8 30.8
KLB e S 99.50 0.50 0.55 98.92 0.58 151.9 127 2.0 2.0
MRWA e P 85.00 0.20 0.73 84.65 0.35 178.7 344 -42.2 42.2
MRWA e S 105.20 0.30 0.61 105.37 -0.17 178.7 344 -40.3 40.3
NWAO e S 120.50 1.00 0.46 120.17 0.33 249.0 163 -40.3 40.3
COOL e S 161.00 0.50 0.50 161.77 -0.77 446.4 92 -40.3 40.3
10 times used, S = 0.341
Velocity Ratios
BAL MUN KLB MRWA
BAL 1.73 1.67 1.78 1.72
0.08 0.07 0.09 0.04
MUN 1.67 1.68 0.00 0.00
0.07 0.04 0.00 0.00
KLB 1.78 0.00 1.77 0.00
0.09 0.00 0.06 0.00
MRWA 1.72 0.00 0.00 1.72
0.04 0.00 0.00 0.02
Date 1993-07-27
Origin Time 1118 24.38 +- 3.89
Zone 50
Easting 461.61 +- 19.58 Longitude 116.622
Northing 7305.05 +- 14.09 Latitude -24.367
Depth 5.00 +- 35.67 N
Arrival times = 11 S.D. = 1.311 Seismographs = 5
Nearest recorder = 232.0 km Gap = 143.9 deg Accuracy = C
Effects Code = Imax = 0 Fault =
116 km S (200 deg) of LP06
WESTERN AUSTRALIA
844 km N ( 5 deg) of PERTH
304 km E ( 80 deg) of CARNARVON
89 km N (342 deg) of Landor
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.6
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
NANU i+P 58.40 0.10 1.17 58.53 -0.13 232.0 330 -42.2 42.2
NANU e PG 62.50 0.50 0.59 62.24 0.26 232.0 330 1.3 1.3
NANU e SG 86.80 0.50 0.53 88.49 -1.69 232.0 330 1.3 1.3
MEEK e P 70.30 0.30 0.64 69.40 0.90 321.5 142 -42.2 42.2
MEEK e S 104.50 0.50 0.52 102.93 1.57 321.5 142 -40.3 40.3
MBL e PG 103.70 0.30 0.61 103.45 0.25 484.6 43 0.6 0.6
MBL e S 135.00 1.00 0.43 137.23 -2.23 484.6 43 -40.3 40.3
MBL e SG 158.00 1.00 0.43 158.26 -0.26 484.6 43 0.6 0.6
MRWA e P 95.00 1.00 0.48 95.90 -0.90 540.9 186 -42.2 42.2
MRWA e S 146.00 1.00 0.43 149.09 -3.09 540.9 186 -40.3 40.3
WARB e S-P 95.00 2.00 0.39 97.23 -2.23 1032.4 103 0.0 0.0
11 times used, S = 1.311
Deferred Data
NANU e S 86.80 0.50 0.53 84.02 2.78 232.0 330 -40.3 40.3
MRWA e SG 166.00 1.00 0.43 173.80 -7.80 540.9 186 0.6 0.6
Velocity Ratios
MEEK MRWA
MEEK 1.74 1.68
0.02 0.16
MRWA 1.68 1.72
0.16 0.04
Date 1993-07-30
Origin Time 0409 51.57 +- 1.57
Zone 50
Easting 548.32 +- 10.06 Longitude 117.507
Northing 6548.10 +- 5.76 Latitude -31.200
Depth 3.64 +- 15.36
Arrival times = 7 S.D. = 0.195 Seismographs = 4
Nearest recorder = 49.6 km Gap = 200.6 deg Accuracy = B
Effects Code = Imax = 0 Fault =
24 km NW (321 deg) of KBN
WESTERN AUSTRALIA
178 km NE ( 63 deg) of PERTH
41 km S (176 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 1.9
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB e S 65.40 0.30 0.68 65.32 0.08 49.6 151 4.5 4.5
BAL e P 67.80 0.20 0.77 68.04 -0.24 100.9 310 2.2 2.2
BAL e S 79.60 0.30 0.64 79.46 0.14 100.9 310 2.2 2.2
MUN i-P 75.70 0.10 1.22 75.54 0.16 150.4 234 -30.8 30.8
MUN e S 93.00 0.20 0.67 93.14 -0.14 150.4 234 1.5 1.5
NWAO e P 81.10 0.30 0.67 81.19 -0.09 193.1 187 -42.2 42.2
NWAO e S 103.00 0.50 0.54 103.30 -0.30 193.1 187 -40.3 40.3
7 times used, S = 0.195
Deferred Data
KLB w P 59.00 0.50 0.69 59.69 -0.69 49.6 151 4.5 4.5
MRWA e P 92.50 0.50 0.59 89.70 2.80 263.4 326 -42.2 42.2
MRWA e S 122.50 0.30 0.58 118.11 4.39 263.4 326 -40.3 40.3
Velocity Ratios
BAL MUN NWAO
BAL 1.73 1.70 1.76
0.04 0.13 0.13
MUN 1.70 1.72 0.00
0.13 0.02 0.00
NWAO 1.76 0.00 1.74
0.13 0.00 0.03
Date 1993-07-31
Origin Time 1747 14.18 +-3259.93
Zone 52
Easting 688.50 +-17340.42 Longitude 130.899
Northing 7017.02 +-11658.65 Latitude -26.956
Depth 5.00 +-22539.31 N
Arrival times = 5 S.D. =32.515 Seismographs = 3
Nearest recorder = 432.5 km Gap = 171.9 deg Accuracy = D
Effects Code = Imax = 0 Fault =
432 km E (102 deg) of WARB
SOUTH AUSTRALIA
Record Dur Sync Unc Resp Seismometer Recorder Pol
ASPA 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
WARB e S-P 16.50 0.50 0.56 43.48 -59.98 432.5 280 0.0 0.0
ASPA e P 80.30 0.30 0.61 77.46 2.84 472.5 40 -42.2 42.2
ASPA e S 121.00 1.00 0.43 124.54 -3.54 472.5 40 -40.3 40.3
FORT e P 78.50 0.50 0.55 81.70 -3.20 507.9 212 -42.2 42.2
FORT e S 134.00 1.00 0.43 131.92 2.08 507.9 212 -40.3 40.3
5 times used, S =32.515
Velocity Ratios
ASPA FORT
ASPA 1.62 0.00
0.02 0.00
FORT 0.00 1.86
0.00 0.03