Data Report
Bulletin / 1994-09
Contributed by CUPWA
Date 1994-09-01
Origin Time 0625 30.23 +- 12.78
Zone 52
Easting 649.70 +- 23.56 Longitude 130.459
Northing 7469.81 +- 42.59 Latitude -22.873
Depth 5.00 +- 100.00 N
Arrival times = 11 S.D. = 2.420 Seismographs = 6
Nearest recorder = 363.7 km Gap = 120.5 deg Accuracy = D
Effects Code = Imax = 0 Fault =
363 km W (283 deg) of ASPA
NORTHERN TERRITORY
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
ASPA i-P 78.40 0.10 1.12 80.36 -1.96 363.7 105 -42.2 42.2
ASPA i P2 82.00 0.30 0.54 83.98 -1.98 363.7 105 -30.8 30.8
ASPA i S 121.40 0.30 0.81 117.69 3.71 363.7 105 -40.3 40.3
WARB e P 99.50 0.50 0.55 100.79 -1.29 532.8 225 -42.2 42.2
WARB e S 156.50 1.00 0.43 153.26 3.24 532.8 225 -40.3 40.3
FITZ e P 125.30 0.30 0.59 124.48 0.82 729.1 315 -42.2 42.2
FITZ e S 196.20 0.50 0.48 194.51 1.69 729.1 315 -40.3 40.3
KNA w P 133.00 1.00 0.47 134.04 -1.04 808.0 347 -42.2 42.2
KNA w S 213.00 2.00 0.37 211.15 1.85 808.0 347 -40.3 40.3
MTN e P 170.00 1.00 0.44 170.79 -0.79 1112.0 3 -42.2 42.2
MBL e P 171.00 0.50 0.51 171.32 -0.32 1116.3 277 -42.2 42.2
11 times used, S = 2.420
Deferred Data
WR2 e P 106.10 0.30 0.61 99.13 6.97 519.1 51 -42.2 42.2
WR2 e S 160.20 0.50 0.49 150.38 9.82 519.1 51 -40.3 40.3
MBL e S 280.00 1.00 0.40 276.06 3.94 1116.3 277 -40.3 40.3
MEEK e P 187.50 0.50 0.51 190.23 -2.73 1272.4 248 -42.2 42.2
MEEK e S 305.00 1.00 0.40 308.98 -3.98 1272.4 248 -40.3 40.3
MRWA e P 223.00 1.00 0.70 231.78 -8.78 1616.2 240 -42.2 42.2
MRWA e S 377.00 1.00 0.63 381.33 -4.33 1616.2 240 -40.3 40.3
Velocity Ratios
ASPA WARB FITZ KNA
ASPA 1.89 1.66 1.59 1.68
0.01 0.11 0.03 0.08
WARB 1.66 1.82 1.54 1.69
0.11 0.03 0.11 0.17
FITZ 1.59 1.54 1.75 0.00
0.03 0.11 0.01 0.00
KNA 1.68 1.69 0.00 1.78
0.08 0.17 0.00 0.04
Date 1994-09-04
Origin Time 1301 28.51 +- 5.92
Zone 51
Easting 619.97 +- 9.55 Longitude 124.253
Northing 6604.34 +- 18.09 Latitude -30.688
Depth 5.00 +- 48.43 N
Arrival times = 13 S.D. = 0.942 Seismographs = 10
Nearest recorder = 249.8 km Gap = 142.7 deg Accuracy = B
Effects Code = Imax = 0 Fault =
225 km E ( 81 deg) of KLDM
WESTERN AUSTRALIA
812 km E ( 82 deg) of PERTH
Record Dur Sync Unc Resp Seismometer Recorder Pol
ASPA 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 4.3
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
WOOL i+P 65.10 0.10 1.16 64.83 0.27 249.8 259 -42.2 42.2
FORT i-P 78.60 0.10 1.12 78.75 -0.15 365.0 92 -42.2 42.2
FORT i S 116.70 1.00 0.64 116.16 0.54 365.0 92 -40.3 40.3
WARB e P 103.20 0.20 0.66 101.33 1.87 551.5 25 -42.2 42.2
NWAO e P 120.30 0.40 0.56 120.44 -0.14 709.7 247 -42.2 42.2
MEEK e P 121.40 0.10 0.73 120.60 0.80 710.8 307 -42.2 42.2
RKG e P 132.00 0.30 0.58 131.93 0.07 804.7 235 -42.2 42.2
RKG i S 209.00 0.50 0.68 208.75 0.25 804.7 235 -40.3 40.3
MRWA e P 131.10 0.20 0.63 133.09 -1.99 814.3 279 -42.2 42.2
MBL e P 173.00 1.00 0.44 172.97 0.03 1144.2 336 -42.2 42.2
ASPA i P 183.10 0.20 0.87 184.23 -1.13 1237.0 53 -42.2 42.2
NANU e P 186.20 0.20 0.61 186.43 -0.23 1255.7 314 -42.2 42.2
NANU e S 302.00 0.50 0.46 303.65 -1.65 1255.7 314 -40.3 40.3
13 times used, S = 0.942
Deferred Data
WOOL i PG 72.00 0.50 0.84 69.26 2.74 249.8 259 1.2 1.2
FORT i PG 86.90 1.00 0.71 88.06 -1.16 365.0 92 0.8 0.8
NWAO e S 189.30 0.50 0.48 188.76 0.54 709.7 247 -40.3 40.3
BAL i+P 120.00 0.20 0.91 122.15 -2.15 723.8 268 -42.2 42.2
BAL i S 190.00 1.00 0.59 191.73 -1.73 723.8 268 -40.3 40.3
MUN e P 127.10 0.50 0.53 128.87 -1.77 779.5 257 -42.2 42.2
MUN e S 202.50 1.00 0.41 203.43 -0.93 779.5 257 -40.3 40.3
MBL e S 282.00 1.00 0.40 280.21 1.79 1144.2 336 -40.3 40.3
ASPA i S 301.70 1.00 0.57 299.81 1.89 1237.0 53 -40.3 40.3
ASPA e SG 379.50 2.00 0.35 370.21 9.29 1237.0 53 0.3 0.3
FITZ e P 203.90 0.50 0.51 204.03 -0.13 1401.3 6 -42.2 42.2
FITZ e S 335.90 0.50 0.46 334.29 1.61 1401.3 6 -40.3 40.3
Velocity Ratios
FORT RKG NANU
FORT 1.76 1.73 1.72
0.02 0.04 0.02
RKG 1.73 1.74 1.72
0.04 0.01 0.03
NANU 1.72 1.72 1.73
0.02 0.03 0.01
Date 1994-09-04
Origin Time 2301 53.47 +- 0.58
Zone 50
Easting 512.21 +- 3.55 Longitude 117.128
Northing 6598.65 +- 2.95 Latitude -30.745
Depth 1.00 +- 6.71 C
Arrival times = 8 S.D. = 0.148 Seismographs = 5
Nearest recorder = 2.2 km Gap = 126.2 deg Accuracy = A
Effects Code = Imax = 0 Fault =
2 km W (273 deg) of CAA
WESTERN AUSTRALIA
181 km NE ( 43 deg) of PERTH
3 km N (355 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? 1.9
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
CAA S-P 0.26 0.05 1.87 0.29 -0.03 2.2 93 0.0 0.0
BAL e P 60.40 0.10 0.95 60.51 -0.11 43.1 290 1.7 1.7
BAL e S 65.40 0.10 0.85 65.39 0.01 43.1 290 1.7 1.7
MUN e P 79.20 0.20 0.74 79.31 -0.11 162.3 212 -30.8 30.8
MUN e S 98.30 0.20 0.66 98.30 0.00 162.3 212 0.4 0.4
MRWA e P2 85.30 0.50 0.36 84.79 0.51 201.3 327 -30.8 30.8
MRWA i S2 108.50 0.20 0.52 108.49 0.01 201.3 327 -23.9 23.9
NWAO e P2 91.00 0.30 0.39 90.49 0.51 242.0 177 -30.8 30.8
8 times used, S = 0.148
Deferred Data
CAA P 53.90 1.00 1.03 53.89 0.01 2.2 93 30.0 30.0
CAS S-P 5.00 5.00 0.70 0.83 4.17 7.2 176 0.0 0.0
NWAO S2 119.50 0.30 0.47 118.76 0.74 242.0 177 -23.9 23.9
Velocity Ratios
BAL MUN
BAL 1.72 1.75
0.04 0.04
MUN 1.75 1.74
0.04 0.02
Date 1994-09-05
Origin Time 0758 39.21 +- 31.38
Zone 50
Easting 610.52 +- 199.40 Longitude 118.193
Northing 6270.26 +- 60.24 Latitude -33.702
Depth 5.00 +- 152.09 N
Arrival times = 5 S.D. = 0.163 Seismographs = 3
Nearest recorder = 123.9 km Gap = 272.7 deg Accuracy = B
Effects Code = Imax = 0 Fault =
17 km N ( 5 deg) of GNOC
WESTERN AUSTRALIA
293 km SE (132 deg) of PERTH
147 km N ( 12 deg) of ALBANY
31 km NE ( 35 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
NWAO e P 59.30 0.20 0.75 59.35 -0.05 123.9 313 -30.8 30.8
NWAO e S 73.40 0.30 0.63 73.48 -0.08 123.9 313 2.4 2.4
RKG e PG 63.00 0.30 0.69 62.95 0.05 145.4 228 2.1 2.1
RKG i S2 79.60 0.20 0.53 79.66 -0.06 145.4 228 -23.9 23.9
MUN e S2 110.80 0.50 0.29 110.22 0.58 266.4 315 -23.9 23.9
5 times used, S = 0.163
Deferred Data
NWAO e SG 80.10 0.30 0.63 73.48 6.62 123.9 313 2.4 2.4
MUN e P 78.50 0.50 0.59 77.54 0.96 266.4 315 -42.2 42.2
BAL e S 129.70 0.50 0.51 128.07 1.63 370.6 337 -40.3 40.3
MRWA e P 109.00 1.00 0.48 110.50 -1.50 539.0 336 -42.2 42.2
MRWA e S 165.80 0.50 0.49 163.52 2.28 539.0 336 -40.3 40.3
Velocity Ratios
NWAO
NWAO 1.70
0.03
Date 1994-09-06
Origin Time 1906 33.95 +- 6.69
Zone 50
Easting 506.70 +- 44.78 Longitude 117.070
Northing 6589.82 +- 8.99 Latitude -30.825
Depth 5.00 +- 50.43 N
Arrival times = 6 S.D. = 0.181 Seismographs = 3
Nearest recorder = 42.4 km Gap = 242.6 deg Accuracy = B
Effects Code = Imax = 0 Fault =
6 km W (254 deg) of CAS
WESTERN AUSTRALIA
170 km NE ( 43 deg) of PERTH
4 km NW (314 deg) of Manmanning
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.4
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BAL e P 40.70 0.10 0.95 40.91 -0.21 42.4 304 7.1 7.1
BAL e S 45.80 0.10 0.85 45.74 0.06 42.4 304 7.1 7.1
MUN e P 58.00 0.10 0.85 58.00 -0.00 151.9 212 -30.8 30.8
MUN e S 76.00 0.20 0.67 75.93 0.07 151.9 212 2.0 2.0
MRWA e P2 66.00 0.20 0.43 65.58 0.42 206.0 329 -30.8 30.8
MRWA e SG 91.00 0.50 0.54 90.87 0.13 206.0 329 1.5 1.5
6 times used, S = 0.181
Deferred Data
NWAO e P 67.50 0.50 0.59 68.30 -0.80 233.5 176 -42.2 42.2
NWAO e S 93.10 0.30 0.59 93.94 -0.84 233.5 176 -40.3 40.3
NWAO e SG 97.40 0.30 0.59 98.47 -1.07 233.5 176 1.3 1.3
Velocity Ratios
BAL MUN
BAL 1.76 1.75
0.04 0.04
MUN 1.75 1.75
0.04 0.02
Date 1994-09-11
Origin Time 0412 0.20 +- 376.18
Zone 50
Easting 608.83 +-1977.49 Longitude 118.174
Northing 6274.47 +- 80.32 Latitude -33.664
Depth 5.00 +-2092.56 N
Arrival times = 5 S.D. = 0.385 Seismographs = 3
Nearest recorder = 119.8 km Gap = 271.4 deg Accuracy = C
Effects Code = Imax = 0 Fault =
21 km N (359 deg) of GNOC
WESTERN AUSTRALIA
289 km SE (132 deg) of PERTH
151 km N ( 11 deg) of ALBANY
34 km NE ( 29 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 2.2
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
NWAO e P 19.60 0.10 0.87 19.76 -0.16 119.8 312 -30.8 30.8
NWAO e S 33.20 0.20 0.68 33.33 -0.13 119.8 312 2.5 2.5
RKG e P 23.40 0.10 0.85 23.57 -0.17 147.0 226 -30.8 30.8
RKG e SG 41.00 0.30 0.62 40.83 0.17 147.0 226 2.1 2.1
MUN e P2 40.70 0.10 0.49 39.71 0.99 262.2 315 -30.8 30.8
5 times used, S = 0.385
Deferred Data
MUN e PG 40.70 0.10 0.81 42.99 -2.29 262.2 315 1.1 1.1
MUN e S 67.00 0.50 0.53 66.23 0.77 262.2 315 -40.3 40.3
BAL e S 90.00 0.50 0.51 88.10 1.90 366.0 337 -40.3 40.3
MRWA e S 125.00 1.00 0.43 123.55 1.45 534.4 336 -40.3 40.3
Velocity Ratios
NWAO
NWAO 1.70
0.02
Date 1994-09-12
Origin Time 0326 0.42 +- 7.14
Zone 50
Easting 610.64 +- 41.10 Longitude 118.194
Northing 6272.81 +- 12.33 Latitude -33.679
Depth 1.00 +- 31.67 C
Arrival times = 6 S.D. = 0.297 Seismographs = 3
Nearest recorder = 122.3 km Gap = 272.4 deg Accuracy = C
Effects Code = Imax = 0 Fault =
19 km N ( 5 deg) of GNOC
WESTERN AUSTRALIA
291 km SE (132 deg) of PERTH
150 km N ( 12 deg) of ALBANY
33 km NE ( 33 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 2.5
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
NWAO e P 20.20 0.10 0.87 20.37 -0.17 122.3 312 0.6 0.6
NWAO e S 34.20 0.20 0.68 34.20 0.00 122.3 312 0.6 0.6
RKG i-P 24.30 0.10 1.22 24.16 0.14 147.2 227 -30.8 30.8
RKG e S 40.80 0.30 0.62 41.08 -0.28 147.2 227 0.5 0.5
MUN e P2 40.00 0.10 0.49 40.61 -0.61 264.7 315 -30.8 30.8
MUN S2 71.90 0.10 0.58 71.43 0.47 264.7 315 -23.9 23.9
6 times used, S = 0.297
Deferred Data
MUN e P 40.00 0.10 0.81 38.98 1.02 264.7 315 -42.2 42.2
MUN e S 69.30 0.50 0.53 67.69 1.61 264.7 315 -40.3 40.3
BAL e P 52.00 1.00 0.49 51.51 0.49 368.3 337 -42.2 42.2
BAL e S 90.00 0.50 0.51 89.50 0.50 368.3 337 -40.3 40.3
BAL e SG 100.00 1.00 0.45 102.15 -2.15 368.3 337 0.2 0.2
MRWA e P 73.70 0.20 0.66 71.87 1.83 536.7 336 -42.2 42.2
MRWA e S 126.30 0.20 0.59 124.96 1.34 536.7 336 -40.3 40.3
MRWA e SG 146.00 1.00 0.43 148.67 -2.67 536.7 336 0.1 0.1
Velocity Ratios
NWAO RKG
NWAO 1.71 0.00
0.02 0.00
RKG 0.00 1.69
0.00 0.02
Date 1994-09-12
Origin Time 1203 3.85 +- 9.51
Zone 53
Easting 645.58 +- 26.92 Longitude 136.415
Northing 7512.61 +- 28.17 Latitude -22.487
Depth 5.00 +- 73.33 N
Arrival times = 10 S.D. = 1.518 Seismographs = 5
Nearest recorder = 289.6 km Gap = 162.6 deg Accuracy = D
Effects Code = Imax = 0 Fault =
281 km NE ( 63 deg) of AS06
NORTHERN TERRITORY
Record Dur Sync Unc Resp Seismometer Recorder Pol
ASPA 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
ASPA i+P 43.50 0.10 1.15 45.02 -1.52 289.6 242 -42.2 42.2
ASPA i S 76.90 0.10 1.03 75.71 1.19 289.6 242 -40.3 40.3
WR2 i+P 52.80 0.10 1.12 52.58 0.22 352.3 322 -42.2 42.2
WR2 e S 88.90 0.50 0.51 88.87 0.03 352.3 322 -40.3 40.3
QIS e P 57.00 0.30 0.63 57.59 -0.59 393.9 57 -42.2 42.2
QIS e S 99.60 0.30 0.56 97.60 2.00 393.9 57 -40.3 40.3
WARB e P 138.00 1.00 0.44 139.94 -1.94 1074.7 245 -42.2 42.2
WARB w S 242.00 2.00 0.35 240.97 1.03 1074.7 245 -40.3 40.3
FORT e P 158.60 0.30 0.56 160.08 -1.48 1241.6 220 -42.2 42.2
FORT e S 279.20 0.50 0.46 276.04 3.16 1241.6 220 -40.3 40.3
10 times used, S = 1.518
Deferred Data
MTN e P 147.00 0.50 0.51 155.66 -8.66 1205.1 331 -42.2 42.2
MTN e S 257.00 1.00 0.40 268.35 -11.35 1205.1 331 -40.3 40.3
Velocity Ratios
ASPA WR2 QIS WARB FORT
ASPA 1.84 1.29 1.68 1.75 1.76
0.01 0.09 0.08 0.04 0.01
WR2 1.29 1.74 0.00 1.80 1.80
0.09 0.01 0.00 0.05 0.02
QIS 1.68 0.00 1.80 1.76 1.77
0.08 0.00 0.02 0.06 0.02
WARB 1.75 1.80 1.76 1.78 0.00
0.04 0.05 0.06 0.03 0.00
FORT 1.76 1.80 1.77 0.00 1.78
0.01 0.02 0.02 0.00 0.01
Date 1994-09-15
Origin Time 0927 20.07 +- 7.15
Zone 50
Easting 835.04 +- 34.56 Longitude 120.382
Northing 6985.24 +- 26.16 Latitude -27.215
Depth 5.00 +- 22.97 N
Arrival times = 10 S.D. = 0.597 Seismographs = 4
Nearest recorder = 484.4 km Gap = 325.3 deg Accuracy = C
Effects Code = Imax = 0 Fault =
186 km E (110 deg) of MEEK
WESTERN AUSTRALIA
684 km NE ( 41 deg) of PERTH
200 km E (111 deg) of MEEKATHARRA
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
MRWA e P 84.10 0.10 0.76 84.76 -0.66 484.4 241 -42.2 42.2
MRWA e S 133.60 0.20 0.60 132.88 0.72 484.4 241 -40.3 40.3
BAL e P 89.00 1.00 0.48 88.99 0.01 519.4 222 -42.2 42.2
BAL e S 141.00 2.00 0.37 140.25 0.75 519.4 222 -40.3 40.3
BAL e SG 163.00 1.00 0.43 163.55 -0.55 519.4 222 0.6 0.6
KLB w P 93.00 2.00 0.42 92.44 0.56 547.9 206 -42.2 42.2
KLB e S 146.00 0.50 0.49 146.25 -0.25 547.9 206 -40.3 40.3
KLB e SG 171.70 0.50 0.49 171.43 0.27 547.9 206 0.6 0.6
MUN e P 107.00 0.30 0.59 106.58 0.42 664.9 216 -42.2 42.2
MUN e SG 203.00 1.00 0.42 203.75 -0.75 664.9 216 0.5 0.5
10 times used, S = 0.597
Deferred Data
MUN e S 173.20 0.50 0.48 170.88 2.32 664.9 216 -40.3 40.3
Velocity Ratios
MRWA BAL KLB
MRWA 1.77 0.00 0.00
0.01 0.00 0.00
BAL 0.00 1.75 0.00
0.00 0.06 0.00
KLB 0.00 0.00 1.73
0.00 0.00 0.06
Date 1994-09-15
Origin Time 1431 42.73 +- 31.36
Zone 51
Easting 646.17 +- 192.62 Longitude 124.336
Northing 8818.63 +-1420.55 Latitude -10.684
Depth 5.00 +-1600.32 N
Arrival times = 10 S.D. = 4.070 Seismographs = 7
Nearest recorder = 739.1 km Gap = 280.7 deg Accuracy = C
Effects Code = Imax = 0 Fault =
99 km SE (126 deg) of KUPT
735 km W (285 deg) of DARWIN
Place names undefined for this area
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
KNA e P 137.30 0.50 0.53 138.21 -0.91 739.1 140 -42.2 42.2
KNA e S 208.70 1.00 0.42 209.15 -0.45 739.1 140 -40.3 40.3
MBL e P 203.00 1.00 0.44 200.61 2.39 1255.1 201 -42.2 42.2
WRA e P 235.20 1.00 0.44 229.38 5.82 1492.9 135 -42.2 42.2
WRA e S 373.60 3.00 0.32 367.87 5.73 1492.9 135 -40.3 40.3
NANU e P 249.00 5.00 0.32 244.43 4.57 1617.6 214 -42.2 42.2
ASPA e P 259.00 0.50 0.51 262.93 -3.93 1770.1 146 -42.2 42.2
ASPA e S 425.50 2.00 0.35 426.28 -0.78 1770.1 146 -40.3 40.3
MEEK e P 274.70 1.00 0.44 274.50 0.20 1865.9 197 -42.2 42.2
FORT e P 315.60 1.00 0.44 322.33 -6.73 2259.7 170 -50.3 49.9
10 times used, S = 4.070
Deferred Data
WARB e P 196.00 3.00 0.35 258.49 -62.49 1733.6 172 -42.2 42.2
WARB e S 360.00 5.00 0.29 418.56 -58.56 1733.6 172 -40.3 40.3
Velocity Ratios
KNA WRA ASPA
KNA 1.76 1.68 1.78
0.02 0.07 0.04
WRA 1.68 1.72 0.00
0.07 0.02 0.00
ASPA 1.78 0.00 1.77
0.04 0.00 0.01
Date 1994-09-17
Origin Time 1535 35.85 +- 0.40
Zone 50
Easting 508.62 +- 3.44 Longitude 117.090
Northing 6588.61 +- 4.18 Latitude -30.836
Depth 4.32 +- 7.52
Arrival times = 10 S.D. = 0.136 Seismographs = 6
Nearest recorder = 11.5 km Gap = 112.7 deg Accuracy = A
Effects Code = Imax = 0 Fault =
4 km SW (234 deg) of CAS
WESTERN AUSTRALIA
171 km NE ( 44 deg) of PERTH
2 km NW (330 deg) of Manmanning
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.1
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
CAA S-P 1.30 0.20 1.29 1.40 -0.10 11.5 30 0.0 0.0
BAL e P 43.20 0.20 0.82 43.17 0.03 44.6 304 5.9 5.9
BAL i S 48.20 0.20 1.05 48.24 -0.04 44.6 304 5.9 5.9
KLB e P 53.10 0.20 0.76 53.05 0.05 105.3 143 2.5 2.5
KLB i S 65.00 0.20 0.98 64.98 0.02 105.3 143 2.5 2.5
MUN e P 60.10 0.20 0.74 59.96 0.14 151.9 213 -30.8 30.8
MUN i S2 77.80 0.20 0.53 78.01 -0.21 151.9 213 -23.9 23.9
MRWA e P2 68.30 0.20 0.43 67.82 0.48 208.0 329 -30.8 30.8
NWAO i P 70.00 0.10 1.17 70.12 -0.12 232.2 176 -42.2 42.2
NWAO e P2 71.40 0.30 0.39 71.21 0.19 232.2 176 -30.8 30.8
10 times used, S = 0.136
Deferred Data
MRWA i S 92.20 0.20 0.93 90.60 1.60 208.0 329 -40.3 40.3
NWAO i S2 98.90 0.20 0.51 98.28 0.62 232.2 176 -23.9 23.9
Velocity Ratios
BAL KLB
BAL 1.68 1.70
0.07 0.11
KLB 1.70 1.69
0.11 0.03
Date 1994-09-18
Origin Time 0450 26.19 +- 2.13
Zone 50
Easting 508.20 +- 6.69 Longitude 117.086
Northing 6501.85 +- 8.84 Latitude -31.618
Depth 5.00 +- 154.97 N
Arrival times = 6 S.D. = 0.166 Seismographs = 4
Nearest recorder = 64.0 km Gap = 105.4 deg Accuracy = A
Effects Code = Imax = 0 Fault =
10 km N ( 14 deg) of ME3
WESTERN AUSTRALIA
123 km E ( 73 deg) of PERTH
7 km E ( 80 deg) of Meckering
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.3
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB e P 36.70 0.10 0.92 36.66 0.04 64.0 87 4.7 4.7
KLB e S 44.00 0.20 0.72 43.92 0.08 64.0 87 4.7 4.7
MUN e P 41.10 0.10 0.89 41.26 -0.16 92.2 244 3.3 3.3
MUN e S 52.00 0.20 0.70 51.70 0.30 92.2 244 3.3 3.3
BAL e S 58.70 0.20 0.68 58.77 -0.07 117.8 342 2.6 2.6
NWAO e S 66.30 0.30 0.62 66.46 -0.16 145.7 174 2.1 2.1
6 times used, S = 0.166
Velocity Ratios
KLB MUN
KLB 1.69 1.82
0.04 0.18
MUN 1.82 1.73
0.18 0.03
Date 1994-09-20
Origin Time 2127 20.97 +- 15.09
Zone 51
Easting 621.75 +- 38.36 Longitude 124.272
Northing 6598.90 +- 169.82 Latitude -30.736
Depth 5.00 +- 116.18 N
Arrival times = 8 S.D. = 0.940 Seismographs = 6
Nearest recorder = 250.7 km Gap = 165.6 deg Accuracy = C
Effects Code = Imax = 0 Fault =
226 km E ( 82 deg) of KLDM
WESTERN AUSTRALIA
812 km E ( 83 deg) of PERTH
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.7
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
WOOL e P 58.90 0.50 0.59 57.40 1.50 250.7 260 -42.2 42.2
WOOL e S 85.20 0.50 0.53 84.58 0.62 250.7 260 -40.3 40.3
FORT e P 70.70 0.50 0.57 70.96 -0.26 362.9 92 -42.2 42.2
FORT e S 108.40 2.00 0.39 108.19 0.21 362.9 92 -40.3 40.3
WARB S-P 55.00 5.00 0.49 54.51 0.49 555.6 25 0.0 0.0
BAL e P 114.00 1.00 0.46 114.82 -0.82 725.6 269 -42.2 42.2
MUN e S 195.00 0.50 0.47 196.02 -1.02 780.1 257 -40.3 40.3
MRWA e P 125.00 0.50 0.52 125.88 -0.88 817.0 279 -42.2 42.2
8 times used, S = 0.940
Deferred Data
KLB e P 106.00 1.00 0.47 103.05 2.95 628.2 259 -42.2 42.2
KLB e S 163.00 1.00 0.42 164.06 -1.06 628.2 259 -40.3 40.3
NWAO e SG 213.70 1.00 0.42 216.94 -3.24 709.4 248 0.4 0.4
BAL e S 182.50 0.50 0.48 184.56 -2.06 725.6 269 -40.3 40.3
MUN e P 124.50 0.50 0.53 121.41 3.09 780.1 257 -42.2 42.2
RKG e S 203.00 2.00 0.36 200.89 2.11 803.2 235 -40.3 40.3
MRWA e S 201.00 0.50 0.47 203.80 -2.80 817.0 279 -40.3 40.3
Velocity Ratios
WOOL FORT
WOOL 1.69 0.00
0.04 0.00
FORT 0.00 1.76
0.00 0.06
Date 1994-09-21
Origin Time 0516 59.27 +- 21.06
Zone 51
Easting 292.68 +- 768.57 Longitude 120.904
Northing 6972.45 +- 675.71 Latitude -27.355
Depth 5.00 +-1291.26 N
Arrival times = 7 S.D. = 0.601 Seismographs = 4
Nearest recorder = 525.0 km Gap = 326.6 deg Accuracy = C
Effects Code = Imax = 0 Fault =
240 km E (109 deg) of MEEK
WESTERN AUSTRALIA
706 km NE ( 45 deg) of PERTH
174 km N (346 deg) of Leonora
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
MRWA e P 128.40 0.30 0.61 128.88 -0.48 525.0 245 -42.2 42.2
MRWA e S 181.00 1.00 0.43 180.63 0.37 525.0 245 -40.3 40.3
BAL e P 131.50 0.50 0.55 131.42 0.08 546.0 227 -42.2 42.2
BAL e S 185.50 1.00 0.43 185.07 0.43 546.0 227 -40.3 40.3
KLB e P 133.90 0.40 0.57 133.17 0.73 560.5 212 -42.2 42.2
KLB e S 187.00 2.00 0.37 188.11 -1.11 560.5 212 -40.3 40.3
MUN e P 148.00 1.00 0.46 148.37 -0.37 686.2 220 -42.2 42.2
7 times used, S = 0.601
Velocity Ratios
MRWA BAL KLB
MRWA 1.76 0.00 0.00
0.02 0.00 0.00
BAL 0.00 1.75 0.00
0.00 0.03 0.00
KLB 0.00 0.00 1.71
0.00 0.00 0.04
Date 1994-09-23
Origin Time 0922 23.31 +- 8.91
Zone 49
Easting 563.75 +- 35.90 Longitude 111.676
Northing 6446.49 +- 46.73 Latitude -32.116
Depth 5.00 +- 33.30 N
Arrival times = 8 S.D. = 0.611 Seismographs = 3
Nearest recorder = 507.5 km Gap = 327.4 deg Accuracy = D
Effects Code = Imax = 0 Fault =
386 km NW (295 deg) of ABUS
395 km W (266 deg) of PERTH
Place names undefined for this area
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BAL e P 90.00 1.00 0.48 90.79 -0.79 507.5 71 -42.2 42.2
BAL P2 97.50 1.00 0.41 97.17 0.33 507.5 71 -30.8 30.8
BAL S2 154.00 1.00 0.34 155.19 -1.19 507.5 71 -23.9 23.9
MRWA e P 93.00 0.50 0.55 92.83 0.17 524.4 53 -42.2 42.2
MRWA e S 145.00 0.50 0.49 144.53 0.47 524.4 53 -40.3 40.3
MRWA e SG 168.00 1.00 0.43 168.16 -0.16 524.4 53 0.6 0.6
KLB e P 99.40 1.00 0.47 99.50 -0.10 579.5 85 -42.2 42.2
KLB e S 157.00 1.00 0.43 156.15 0.85 579.5 85 -40.3 40.3
8 times used, S = 0.611
Deferred Data
BAL e S 149.00 1.00 0.43 140.99 8.01 507.5 71 -40.3 40.3
Velocity Ratios
MRWA KLB
MRWA 1.75 0.00
0.02 0.00
KLB 0.00 1.76
0.00 0.04
Date 1994-09-23
Origin Time 2259 30.54 +- 9.75
Zone 50
Easting 445.07 +- 85.99 Longitude 116.393
Northing 6049.00 +- 37.42 Latitude -35.701
Depth 5.00 +- 42.52 N
Arrival times = 7 S.D. = 0.541 Seismographs = 4
Nearest recorder = 137.5 km Gap = 332.7 deg Accuracy = C
Effects Code = Imax = 0 Fault =
137 km SW (203 deg) of RKG
WESTERN AUSTRALIA
419 km S (173 deg) of PERTH
155 km SW (239 deg) of ALBANY
Record Dur Sync Unc Resp Seismometer Recorder Pol
MUN -0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML? 2.3
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
RKG e P 52.20 0.10 0.86 52.58 -0.38 137.5 24 -30.8 30.8
RKG e S 68.50 0.20 0.67 68.55 -0.05 137.5 24 2.2 2.2
NWAO i+P 75.60 0.20 0.99 75.01 0.59 317.2 14 -42.2 42.2
NWAO e S 107.50 0.30 0.57 108.15 -0.65 317.2 14 -40.3 40.3
NWAO e SG 118.70 0.30 0.57 118.18 0.52 317.2 14 1.0 1.0
MUN e P 86.00 1.00 0.49 86.61 -0.61 413.2 357 -42.2 42.2
MRWA e P 123.40 0.50 0.53 123.68 -0.28 719.7 356 -42.2 42.2
7 times used, S = 0.541
Deferred Data
MUN e S 127.00 0.50 0.51 128.35 -1.35 413.2 357 -40.3 40.3
KLB e S 142.00 0.50 0.50 140.94 1.06 472.9 15 -40.3 40.3
KLB e SG 165.00 1.00 0.43 161.19 3.81 472.9 15 0.6 0.6
BAL e S 159.00 1.00 0.43 160.44 -1.44 565.6 3 -40.3 40.3
BAL e SG 186.00 1.00 0.43 186.78 -0.78 565.6 3 0.5 0.5
MRWA e S 191.00 1.00 0.42 192.89 -1.89 719.7 356 -40.3 40.3
Velocity Ratios
RKG NWAO
RKG 1.75 1.67
0.02 0.04
NWAO 1.67 1.71
0.04 0.01
Date 1994-09-27
Origin Time 0803 31.50 +- 0.49
Zone 50
Easting 526.73 +- 2.48 Longitude 117.281
Northing 6520.24 +- 3.62 Latitude -31.452
Depth 5.00 +- 13.13 N
Arrival times = 8 S.D. = 0.136 Seismographs = 5
Nearest recorder = 48.0 km Gap = 135.7 deg Accuracy = A
Effects Code = Imax = 0 Fault =
26 km W (264 deg) of KBW
WESTERN AUSTRALIA
146 km E ( 68 deg) of PERTH
22 km N ( 13 deg) of Cunderdin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.7
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB i-P 39.30 0.10 1.34 39.38 -0.08 48.0 109 6.3 6.3
KLB e S 45.00 0.10 0.84 44.84 0.16 48.0 109 6.3 6.3
BAL e P 49.20 0.10 0.88 49.23 -0.03 108.6 329 2.8 2.8
BAL e S 61.40 0.20 0.69 61.53 -0.13 108.6 329 2.8 2.8
MUN e P 50.60 0.10 0.87 50.64 -0.04 117.2 239 2.6 2.6
MUN e S 64.00 0.20 0.68 63.91 0.09 117.2 239 2.6 2.6
NWAO e S 76.50 0.50 0.55 76.51 -0.01 163.5 181 -23.9 23.9
MRWA S2 105.50 0.20 0.50 105.10 0.40 276.7 333 -23.9 23.9
8 times used, S = 0.136
Deferred Data
MRWA e S 103.00 0.20 0.63 100.59 2.41 276.7 333 -40.3 40.3
Velocity Ratios
KLB BAL MUN
KLB 1.73 1.66 1.68
0.04 0.07 0.06
BAL 1.66 1.69 0.00
0.07 0.02 0.00
MUN 1.68 0.00 1.70
0.06 0.00 0.02
Date 1994-09-27
Origin Time 1200 0.45 +- 15.67
Zone 50
Easting 606.55 +- 85.40 Longitude 118.150
Northing 6271.38 +- 16.30 Latitude -33.692
Depth 5.00 +- 83.59 N
Arrival times = 6 S.D. = 0.100 Seismographs = 4
Nearest recorder = 120.3 km Gap = 248.7 deg Accuracy = B
Effects Code = Imax = 0 Fault =
18 km N (352 deg) of GNOC
WESTERN AUSTRALIA
289 km SE (133 deg) of PERTH
147 km N ( 10 deg) of ALBANY
30 km NE ( 28 deg) of Gnowangerup
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
NWAO e P 20.10 0.10 0.87 20.08 0.02 120.3 314 -30.8 30.8
NWAO e S 33.70 0.20 0.68 33.72 -0.02 120.3 314 2.5 2.5
RKG w P 23.30 0.30 0.70 23.29 0.01 143.2 226 -30.8 30.8
RKG e S 40.00 0.30 0.62 40.03 -0.03 143.2 226 2.1 2.1
MUN e S2 71.00 1.00 0.26 70.55 0.45 262.9 315 -23.9 23.9
BAL e SG 102.00 1.00 0.45 102.13 -0.13 368.1 338 0.8 0.8
6 times used, S = 0.100
Deferred Data
KLB e S2 63.00 1.00 0.26 63.70 -0.70 235.7 351 -23.9 23.9
Velocity Ratios
NWAO RKG
NWAO 1.69 0.00
0.02 0.00
RKG 0.00 1.73
0.00 0.04
Date 1994-09-27
Origin Time 1559 11.43 +- 0.65
Zone 50
Easting 436.17 +- 9.34 Longitude 116.326
Northing 6482.43 +- 4.42 Latitude -31.792
Depth 9.38 +- 16.96
Arrival times = 8 S.D. = 0.096 Seismographs = 5
Nearest recorder = 23.5 km Gap = 145.5 deg Accuracy = A
Effects Code = F Imax = 3 Fault =
7 km N (349 deg) of LAK
WESTERN AUSTRALIA
48 km E ( 69 deg) of PERTH
10 km N (342 deg) of Atlas Quarry
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
MUN e P 15.60 0.10 0.99 15.57 0.03 23.5 208 22.3 22.3
MUN e S 18.40 0.20 0.78 18.44 -0.04 23.5 208 22.3 22.3
BAL e S 49.00 0.20 0.67 49.08 -0.08 136.3 15 -23.9 23.9
KLB e S 49.50 0.20 0.67 49.45 0.05 137.7 81 -23.9 23.9
NWAO e P 35.10 0.20 0.74 35.14 -0.04 152.0 146 -30.8 30.8
NWAO e S 53.00 0.50 0.55 53.06 -0.06 152.0 146 -23.9 23.9
MRWA e P 52.00 0.50 0.58 51.77 0.23 287.0 353 -42.2 42.2
MRWA S2 87.00 0.20 0.50 87.14 -0.14 287.0 353 -23.9 23.9
8 times used, S = 0.096
Deferred Data
KLB w P 34.00 1.00 0.55 33.14 0.86 137.7 81 -30.8 30.8
Velocity Ratios
MUN NWAO
MUN 1.67 1.77
0.09 0.06
NWAO 1.77 1.76
0.06 0.04
Date 1994-09-29
Origin Time 1127 41.71 +- 9.55
Zone 50
Easting 645.33 +- 26.23 Longitude 118.389
Northing 7786.83 +- 159.58 Latitude -20.010
Depth 5.00 +- 186.77 N
Arrival times = 6 S.D. = 0.478 Seismographs = 3
Nearest recorder = 197.2 km Gap = 264.4 deg Accuracy = C
Effects Code = Imax = 0 Fault =
76 km NW (332 deg) of RP02
WESTERN AUSTRALIA
188 km E ( 68 deg) of Dampier
38 km NW (328 deg) of PORT HEDLAND
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.5
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MBL i-P 71.80 0.10 1.19 71.67 0.13 197.2 130 -42.2 42.2
MBL e S 94.00 0.20 0.65 94.05 -0.05 197.2 130 -40.3 40.3
NANU i-P 97.00 0.20 0.96 97.46 -0.46 410.6 226 -42.2 42.2
NANU e S 140.00 0.50 0.51 138.95 1.05 410.6 226 -40.3 40.3
MRWA e P 174.50 0.30 0.57 174.55 -0.05 1047.9 192 -42.2 42.2
MRWA e S 272.50 0.50 0.46 273.17 -0.67 1047.9 192 -40.3 40.3
6 times used, S = 0.478
Deferred Data
WARB S-P 115.00 5.00 0.46 102.52 12.48 1091.3 130 0.0 0.0
MUN e S 338.00 1.00 0.40 335.34 2.66 1343.3 188 -40.3 40.3
Velocity Ratios
MBL NANU MRWA
MBL 1.74 1.83 1.74
0.01 0.05 0.01
NANU 1.83 1.78 1.71
0.05 0.02 0.02
MRWA 1.74 1.71 1.74
0.01 0.02 0.01