Data Report
Bulletin / 1998-01
Contributed by CUPWA
Date 1998-01-02
Origin Time 0133 59.19 +- 5.39
Zone 50
Easting 319.47 +- 18.23 Longitude 115.230
Northing 7382.04 +- 13.42 Latitude -23.662
Depth 5.00 +- 51.99 N
Arrival times = 7 S.D. = 0.389 Seismographs = 4
Nearest recorder = 152.2 km Gap = 144.7 deg Accuracy = C
Effects Code = Imax = 0 Fault =
89 km SE (129 deg) of LP03
WESTERN AUSTRALIA
920 km N (356 deg) of PERTH
367 km SW (204 deg) of Dampier
208 km NE ( 50 deg) of CARNARVON
Record Dur Sync Unc Resp Seismometer Recorder Pol
GIRL 0.00 Seismograph details unknown
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
GIRL e P 83.40 0.10 0.85 83.27 0.13 152.2 317 -30.8 30.8
GIRL e S 101.10 0.10 0.77 101.25 -0.15 152.2 317 1.9 1.9
MEEK e P 122.80 0.10 0.76 122.68 0.12 474.3 134 -42.2 42.2
MEEK e S 170.00 0.10 0.69 169.91 0.09 474.3 134 -40.3 40.3
MBL e S 185.00 1.00 0.43 185.57 -0.57 548.9 60 -40.3 40.3
MRWA e P 140.80 0.10 0.74 140.30 0.50 620.2 173 -42.2 42.2
MRWA e S 199.90 0.10 0.67 200.59 -0.69 620.2 173 -40.3 40.3
7 times used, S = 0.389
Deferred Data
MEEK e SG 188.30 0.50 0.50 190.21 -1.91 474.3 134 0.7 0.7
MBL e PMP 145.00 1.00 0.29 139.02 5.98 548.9 60 -31.1 31.1
MBL e SMS 205.00 1.00 0.24 201.85 3.15 548.9 60 -24.3 24.3
Velocity Ratios
GIRL MEEK MRWA
GIRL 1.73 1.75 1.72
0.01 0.01 0.01
MEEK 1.75 1.74 1.66
0.01 0.00 0.03
MRWA 1.72 1.66 1.72
0.01 0.03 0.00
Date 1998-01-03
Origin Time 2042 4.24 +- 0.75
Zone 50
Easting 515.91 +- 5.08 Longitude 117.166
Northing 6592.37 +- 5.00 Latitude -30.802
Depth 1.00 +- 11.48 C
Arrival times = 8 S.D. = 0.133 Seismographs = 4
Nearest recorder = 49.0 km Gap = 180.3 deg Accuracy = A
Effects Code = Imax = 0 Fault =
2 km SE (135 deg) of CA1
WESTERN AUSTRALIA
179 km NE ( 45 deg) of PERTH
5 km SE (135 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 1.8
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BAL i-P 12.20 0.10 1.34 12.24 -0.04 49.0 296 1.5 1.5
BAL i S 17.70 0.10 1.20 17.79 -0.09 49.0 296 1.5 1.5
KLB e P 21.20 0.10 0.88 21.25 -0.05 104.3 147 0.7 0.7
KLB e S 33.00 0.10 0.79 33.05 -0.05 104.3 147 0.7 0.7
MUN e P 29.50 1.00 0.53 29.64 -0.14 159.1 214 -30.8 30.8
MUN e S 48.40 0.10 0.76 48.19 0.21 159.1 214 0.5 0.5
MRWA e P 36.10 0.10 0.83 36.03 0.07 208.6 327 -42.2 42.2
MRWA e S 60.00 0.10 0.74 59.72 0.28 208.6 327 -40.3 40.3
8 times used, S = 0.133
Deferred Data
CMC S-P 1.28 0.10 1.54 0.78 0.50 6.8 279 0.0 0.0
CMC i P 5.93 0.10 1.54 5.37 0.56 6.8 279 11.0 11.0
CMC i S 7.11 0.10 1.38 6.16 0.95 6.8 279 11.0 11.0
NWAO e S 68.20 0.30 0.59 65.40 2.80 235.6 178 -40.3 40.3
NWAO e SMS 68.20 0.30 0.33 68.89 -0.69 235.6 178 -26.7 26.7
Velocity Ratios
BAL KLB MUN MRWA
BAL 1.69 1.70 1.77 1.77
0.03 0.06 0.13 0.02
KLB 1.70 1.70 0.00 1.81
0.06 0.02 0.00 0.04
MUN 1.77 0.00 1.75 0.00
0.13 0.00 0.08 0.00
MRWA 1.77 1.81 0.00 1.75
0.02 0.04 0.00 0.01
Date 1998-01-04
Origin Time 1025 4.14 +- 0.42
Zone 50
Easting 563.82 +- 3.61 Longitude 117.672
Northing 6517.99 +- 2.71 Latitude -31.471
Depth 2.97 +- 7.81
Arrival times = 10 S.D. = 0.135 Seismographs = 5
Nearest recorder = 15.8 km Gap = 181.2 deg Accuracy = A
Effects Code = Imax = 0 Fault =
2 km NE ( 67 deg) of KBS
WESTERN AUSTRALIA
181 km E ( 73 deg) of PERTH
18 km N (345 deg) of Kellerberrin
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
KLB i P 6.80 0.10 1.45 6.77 0.03 15.8 148 11.7 11.7
KLB i S 8.50 0.10 1.31 8.59 -0.09 15.8 148 11.7 11.7
BAL i P 25.60 0.10 1.23 25.71 -0.11 132.9 316 -30.8 30.8
BAL i S 40.90 1.00 0.70 40.86 0.04 132.9 316 1.4 1.4
MUN i P 27.90 0.10 1.22 28.05 -0.15 149.6 247 -30.8 30.8
MUN i S 45.50 0.20 0.95 45.48 0.02 149.6 247 1.2 1.2
NWAO i P 30.70 0.10 1.21 30.42 0.28 166.6 194 -30.8 30.8
NWAO i S 50.10 0.10 1.08 50.15 -0.05 166.6 194 -23.9 23.9
MRWA PG 52.70 0.10 1.14 52.61 0.09 297.1 326 0.6 0.6
MRWA SMS 83.80 0.10 0.57 83.83 -0.03 297.1 326 -25.4 25.4
10 times used, S = 0.135
Deferred Data
MRWA i P 47.50 0.10 1.14 46.41 1.09 297.1 326 -42.2 42.2
MRWA e S 79.00 0.30 0.58 77.89 1.11 297.1 326 -40.3 40.3
Velocity Ratios
KLB BAL MUN NWAO
KLB 1.64 1.72 1.75 1.74
0.10 0.08 0.03 0.02
BAL 1.72 1.71 0.00 0.00
0.08 0.05 0.00 0.00
MUN 1.75 0.00 1.74 0.00
0.03 0.00 0.02 0.00
NWAO 1.74 0.00 0.00 1.73
0.02 0.00 0.00 0.01
Date 1998-01-05
Origin Time 0314 3.04 +- 0.41
Zone 50
Easting 507.45 +- 2.77 Longitude 117.079
Northing 6504.99 +- 2.40 Latitude -31.590
Depth 7.61 +- 8.50
Arrival times = 7 S.D. = 0.102 Seismographs = 4
Nearest recorder = 64.7 km Gap = 108.4 deg Accuracy = A
Effects Code = Imax = 0 Fault =
13 km N ( 7 deg) of ME3
WESTERN AUSTRALIA
123 km E ( 71 deg) of PERTH
8 km NE ( 56 deg) of Meckering
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.7
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB i-P 13.60 0.10 1.31 13.67 -0.07 64.7 90 7.0 7.0
KLB i S 21.10 0.10 1.18 21.04 0.06 64.7 90 7.0 7.0
MUN i-P 18.30 0.10 1.27 18.26 0.04 93.0 242 4.8 4.8
BAL i P 21.70 0.10 1.25 21.66 0.04 114.6 341 -30.8 30.8
BAL i S 34.70 0.10 1.12 34.78 -0.08 114.6 341 3.9 3.9
NWAO i P 26.60 0.10 1.22 26.46 0.14 148.9 174 -30.8 30.8
NWAO i S 43.90 0.10 1.10 44.07 -0.17 148.9 174 -23.9 23.9
7 times used, S = 0.102
Deferred Data
MUN e S 29.20 0.30 0.64 28.81 0.39 93.0 242 4.8 4.8
MRWA e P 43.80 0.20 0.70 43.06 0.74 282.7 338 -42.2 42.2
MRWA PMP 46.60 0.10 0.69 45.57 1.03 282.7 338 -31.9 31.9
MRWA e S 74.00 0.20 0.63 72.93 1.07 282.7 338 -40.3 40.3
MRWA e SMS 80.00 0.30 0.32 78.58 1.42 282.7 338 -25.5 25.5
MEEK e P 78.70 0.50 0.54 77.67 1.03 568.7 15 -42.2 42.2
MEEK e S 135.70 1.00 0.43 133.17 2.53 568.7 15 -40.3 40.3
Velocity Ratios
KLB BAL NWAO
KLB 1.71 1.68 1.75
0.03 0.07 0.04
BAL 1.68 1.70 1.88
0.07 0.01 0.12
NWAO 1.75 1.88 1.73
0.04 0.12 0.01
Date 1998-01-06
Origin Time 1246 20.62 +- 0.57
Zone 50
Easting 450.21 +- 6.63 Longitude 116.478
Northing 6570.26 +- 3.02 Latitude -31.000
Depth 1.00 +- 10.10 C
Arrival times = 8 S.D. = 0.238 Seismographs = 4
Nearest recorder = 48.8 km Gap = 153.5 deg Accuracy = A
Effects Code = Imax = 0 Fault =
34 km SW (240 deg) of PIG2
WESTERN AUSTRALIA
121 km NE ( 30 deg) of PERTH
9 km N ( 17 deg) of Calingiri
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 28.30 0.10 1.34 28.57 -0.27 48.8 26 1.5 1.5
BAL i S 34.00 0.10 1.20 34.09 -0.09 48.8 26 1.5 1.5
MUN i P 38.80 0.10 1.25 38.79 0.01 111.4 193 0.6 0.6
MUN i S 51.20 0.10 1.12 51.40 -0.20 111.4 193 0.6 0.6
KLB i-P 43.30 0.10 1.23 43.13 0.17 138.5 118 -30.8 30.8
KLB e S 59.10 0.30 0.62 58.87 0.23 138.5 118 0.5 0.5
MRWA i P 52.10 0.20 1.03 51.71 0.39 202.9 346 -42.2 42.2
MRWA e S 75.10 0.20 0.65 74.88 0.22 202.9 346 -40.3 40.3
8 times used, S = 0.238
Deferred Data
NWAO e S 81.70 0.30 0.59 79.56 2.14 225.1 161 -40.3 40.3
Velocity Ratios
BAL MUN KLB MRWA
BAL 1.74 1.64 1.67 1.73
0.04 0.05 0.05 0.03
MUN 1.64 1.68 1.76 1.80
0.05 0.01 0.17 0.06
KLB 1.67 1.76 1.70 1.82
0.05 0.17 0.02 0.12
MRWA 1.73 1.80 1.82 1.73
0.03 0.06 0.12 0.02
Date 1998-01-07
Origin Time 1734 55.81 +- 36.61
Zone 50
Easting 886.55 +- 298.34 Longitude 120.715
Northing 7682.26 +- 238.31 Latitude -20.920
Depth 5.00 +- 349.64 N
Arrival times = 5 S.D. = 0.343 Seismographs = 4
Nearest recorder = 95.6 km Gap = 166.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
95 km E ( 73 deg) of MBL
WESTERN AUSTRALIA
233 km E (108 deg) of PORT HEDLAND
104 km E ( 75 deg) of Marble Bar
Record Dur Sync Unc Resp Seismometer Recorder Pol
MBL 0.00 Seismograph details unknown
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
MBL i+P 71.40 0.10 1.27 71.43 -0.03 95.6 253 3.1 3.1
FITZ e S 194.10 1.00 0.42 194.32 -0.22 606.7 59 -40.3 40.3
MEEK e P 143.40 0.30 0.59 142.84 0.56 668.9 198 -42.2 42.2
MEEK e S 206.90 0.50 0.48 207.52 -0.62 668.9 198 -40.3 40.3
GIRL e P 146.30 0.30 0.59 146.18 0.12 696.9 252 -42.2 42.2
5 times used, S = 0.343
Deferred Data
FITZ e SG 229.00 1.00 0.42 223.41 5.59 606.7 59 0.5 0.5
MEEK e SG 243.40 1.00 0.42 240.60 2.80 668.9 198 0.5 0.5
GIRL e S 209.50 1.00 0.42 213.34 -3.84 696.9 252 -40.3 40.3
GIRL e SG 251.30 2.00 0.36 248.34 2.96 696.9 252 0.4 0.4
MRWA e P 185.00 1.00 0.45 187.09 -2.09 1035.0 206 -42.2 42.2
MRWA e S 281.00 1.00 0.40 284.55 -3.55 1035.0 206 -40.3 40.3
Velocity Ratios
MEEK
MEEK 1.72
0.01
Date 1998-01-08
Origin Time 1750 50.46 +- 0.39
Zone 50
Easting 510.80 +- 5.67 Longitude 117.116
Northing 6319.70 +- 2.36 Latitude -33.262
Depth 2.71 +- 6.89
Arrival times = 9 S.D. = 0.177 Seismographs = 4
Nearest recorder = 38.7 km Gap = 165.6 deg Accuracy = A
Effects Code = Imax = 0 Fault =
38 km S (196 deg) of NWAO
WESTERN AUSTRALIA
205 km N (340 deg) of ALBANY
188 km SE (141 deg) of PERTH
13 km NE ( 39 deg) of Arthur River
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 S-P 4.50 0.10 1.36 4.39 0.11 38.7 16 0.0 0.0
NWAO i P 56.70 0.10 1.36 56.79 -0.09 38.7 16 4.4 4.4
NWAO i S 61.20 0.10 1.23 61.19 0.01 38.7 16 4.4 4.4
RKG i P 73.90 0.10 1.22 73.80 0.10 145.4 183 -30.8 30.8
RKG e S 90.50 0.20 0.67 90.63 -0.13 145.4 183 1.2 1.2
MUN i P 76.50 0.10 1.21 76.65 -0.15 165.8 328 -30.8 30.8
MUN i S 96.40 0.20 0.94 96.27 0.13 165.8 328 1.0 1.0
KLB i P 80.70 0.20 1.03 80.38 0.32 194.8 18 -42.2 42.2
KLB e S 102.30 0.20 0.65 102.71 -0.41 194.8 18 -40.3 40.3
9 times used, S = 0.177
Deferred Data
BAL PMP 95.50 0.10 0.69 95.36 0.14 296.8 352 -31.8 31.8
BAL e PG 98.00 0.20 0.70 98.88 -0.88 296.8 352 0.6 0.6
BAL e SMS 131.20 0.30 0.32 130.10 1.10 296.8 352 -25.4 25.4
MRWA e P 113.20 0.50 0.56 112.53 0.67 460.7 346 -42.2 42.2
MRWA e S 161.00 1.00 0.44 158.69 2.31 460.7 346 -40.3 40.3
Velocity Ratios
NWAO RKG MUN KLB
NWAO 1.72 1.70 1.78 1.71
0.04 0.04 0.03 0.03
RKG 1.70 1.71 0.00 1.74
0.04 0.02 0.00 0.14
MUN 1.78 0.00 1.76 0.00
0.03 0.00 0.01 0.00
KLB 1.71 1.74 0.00 1.71
0.03 0.14 0.00 0.02
Date 1998-01-09
Origin Time 1324 33.57 +- 0.47
Zone 50
Easting 505.06 +- 2.47 Longitude 117.053
Northing 6495.06 +- 4.08 Latitude -31.680
Depth 9.33 +- 8.52
Arrival times = 7 S.D. = 0.058 Seismographs = 4
Nearest recorder = 67.7 km Gap = 97.4 deg Accuracy = A
Effects Code = Imax = 0 Fault =
3 km N (353 deg) of ME3
WESTERN AUSTRALIA
118 km E ( 76 deg) of PERTH
7 km SE (143 deg) of Meckering
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB i P 44.70 0.10 1.30 44.73 -0.03 67.7 81 8.1 8.1
KLB i S 52.50 0.10 1.17 52.46 0.04 67.7 81 8.1 8.1
MUN i P 47.70 0.10 1.28 47.77 -0.07 86.6 247 6.3 6.3
MUN i S 57.70 0.10 1.15 57.63 0.07 86.6 247 6.3 6.3
BAL i P 53.30 0.20 1.08 53.28 0.02 123.4 344 -30.8 30.8
NWAO e P 55.40 0.30 0.69 55.49 -0.09 139.3 173 -30.8 30.8
NWAO i S 72.00 0.10 1.10 71.97 0.03 139.3 173 -23.9 23.9
7 times used, S = 0.058
Deferred Data
BAL e S 66.60 0.20 0.68 67.77 -1.17 123.4 344 4.5 4.5
MRWA SMS 110.50 0.10 0.57 110.99 -0.49 291.1 339 -25.3 25.3
Velocity Ratios
KLB MUN NWAO
KLB 1.70 1.73 1.82
0.02 0.20 0.09
MUN 1.73 1.71 1.86
0.20 0.02 0.13
NWAO 1.82 1.86 1.76
0.09 0.13 0.03
Date 1998-01-15
Origin Time 0135 51.00 +- 14.11
Zone 50
Easting 298.68 +- 291.49 Longitude 114.963
Northing 6960.93 +- 145.64 Latitude -27.460
Depth 5.00 +- 317.14 N
Arrival times = 6 S.D. = 0.303 Seismographs = 4
Nearest recorder = 219.5 km Gap = 269.8 deg Accuracy = D
Effects Code = Imax = 0 Fault =
84 km E ( 70 deg) of KBAR
WESTERN AUSTRALIA
505 km N (350 deg) of PERTH
149 km N ( 13 deg) of GERALDTON
80 km E ( 71 deg) of Kalbarri
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 -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MRWA e P 83.70 0.30 0.66 83.67 0.03 219.5 152 -42.2 42.2
MRWA e S 108.50 0.30 0.59 108.06 0.44 219.5 152 -40.3 40.3
MEEK e P 102.40 0.50 0.57 102.30 0.10 373.4 76 -42.2 42.2
MEEK e S 140.40 0.50 0.51 140.50 -0.10 373.4 76 -40.3 40.3
BAL e S 143.00 1.00 0.44 143.49 -0.49 387.8 154 -40.3 40.3
MUN e S 170.00 0.50 0.49 170.26 -0.26 515.0 166 -40.3 40.3
6 times used, S = 0.303
Deferred Data
MEEK e SG 158.20 1.00 0.44 154.17 4.03 373.4 76 0.8 0.8
BAL e P 111.00 0.50 0.56 104.02 6.98 387.8 154 -42.2 42.2
BAL e SG 156.00 1.00 0.44 158.15 -2.15 387.8 154 0.8 0.8
KLB e SG 194.00 0.50 0.49 197.98 -3.98 532.0 150 0.6 0.6
Velocity Ratios
MRWA MEEK
MRWA 1.76 1.71
0.03 0.12
MEEK 1.71 1.74
0.12 0.03
Date 1998-01-15
Origin Time 1540 1.55 +- 7.45
Zone 50
Easting 469.49 +- 30.03 Longitude 116.673
Northing 6350.02 +- 27.88 Latitude -32.988
Depth 2.03 +- 67.08
Arrival times = 5 S.D. = 0.041 Seismographs = 4
Nearest recorder = 52.8 km Gap = 168.6 deg Accuracy = A
Effects Code = Imax = 0 Fault =
52 km W (262 deg) of NWAO
WESTERN AUSTRALIA
249 km NW (333 deg) of ALBANY
139 km SE (146 deg) of PERTH
28 km SE (138 deg) of Boddington
Record Dur Sync Unc Resp Seismometer Recorder Pol
NWAO 0.00 Seismograph details unknown
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 i P 10.20 0.10 1.33 10.16 0.04 52.8 82 2.5 2.5
NWAO i S 16.10 0.10 1.20 16.13 -0.03 52.8 82 2.5 2.5
MUN e S 34.70 0.20 0.68 34.74 -0.04 120.1 338 1.1 1.1
RKG e S 50.40 0.10 0.75 50.42 -0.02 178.2 170 -40.3 40.3
KLB e S 52.00 0.30 0.60 51.97 0.03 185.5 33 -40.3 40.3
5 times used, S = 0.041
Deferred Data
MUN e SMS 39.00 0.30 0.35 38.39 0.61 120.1 338 -35.4 35.4
BAL e SMS 72.60 0.20 0.35 73.08 -0.48 263.9 0 -26.0 26.0
Velocity Ratios
NWAO
NWAO 1.68
0.03
Date 1998-01-17
Origin Time 0611 16.65 +- 0.39
Zone 50
Easting 565.77 +- 3.78 Longitude 117.692
Northing 6519.76 +- 2.94 Latitude -31.455
Depth 4.22 +- 5.62
Arrival times = 11 S.D. = 0.187 Seismographs = 5
Nearest recorder = 16.5 km Gap = 190.8 deg Accuracy = A
Effects Code = Imax = 0 Fault =
5 km NE ( 56 deg) of KBS
WESTERN AUSTRALIA
183 km E ( 73 deg) of PERTH
20 km N (352 deg) of Kellerberrin
Record Dur Sync Unc Resp Seismometer Recorder Pol
KLB 0.00 Seismograph details unknown
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
KLB i-P 19.30 0.10 1.45 19.44 -0.14 16.5 157 15.3 15.3
KLB i S 21.50 0.10 1.31 21.37 0.13 16.5 157 15.3 15.3
BAL e P 38.20 0.20 0.75 38.13 0.07 133.0 314 -30.8 30.8
BAL e PN 39.10 0.10 0.60 38.94 0.16 133.0 314 -42.2 42.2
BAL e S 53.30 0.20 0.67 53.41 -0.11 133.0 314 1.9 1.9
BAL e S2 54.30 0.20 0.37 54.05 0.25 133.0 314 -23.9 23.9
MUN i-P 40.60 0.10 1.22 40.80 -0.20 152.1 247 -30.8 30.8
MUN e S 59.00 0.30 0.61 58.69 0.31 152.1 247 1.7 1.7
NWAO e P 43.30 0.10 0.84 43.14 0.16 168.8 194 -30.8 30.8
NWAO e S 63.00 0.20 0.66 63.09 -0.09 168.8 194 -23.9 23.9
MRWA e P 59.00 0.50 0.58 58.73 0.27 296.7 326 -42.2 42.2
11 times used, S = 0.187
Deferred Data
MRWA e PMP 62.00 0.50 0.35 61.41 0.59 296.7 326 -31.8 31.8
MRWA e S 91.50 0.50 0.52 90.09 1.41 296.7 326 -40.3 40.3
MRWA e SMS 96.90 0.30 0.32 96.08 0.82 296.7 326 -25.4 25.4
Velocity Ratios
KLB BAL MUN NWAO
KLB 1.83 1.68 1.76 1.73
0.11 0.04 0.04 0.03
BAL 1.68 1.70 0.00 0.00
0.04 0.03 0.00 0.00
MUN 1.76 0.00 1.77 0.00
0.04 0.00 0.02 0.00
NWAO 1.73 0.00 0.00 1.74
0.03 0.00 0.00 0.01
Date 1998-01-17
Origin Time 0917 15.00 +- 0.59
Zone 50
Easting 565.94 +- 7.63 Longitude 117.694
Northing 6520.34 +- 5.25 Latitude -31.450
Depth 1.58 +- 14.22
Arrival times = 8 S.D. = 0.087 Seismographs = 4
Nearest recorder = 16.9 km Gap = 192.1 deg Accuracy = A
Effects Code = Imax = 0 Fault =
5 km NE ( 52 deg) of KBS
WESTERN AUSTRALIA
183 km E ( 73 deg) of PERTH
20 km N (353 deg) of Kellerberrin
Record Dur Sync Unc Resp Seismometer Recorder Pol
KLB 0.00 Seismograph details unknown
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 17.80 0.10 1.45 17.79 0.01 16.9 158 6.3 6.3
KLB i S 19.70 0.10 1.30 19.71 -0.01 16.9 158 6.3 6.3
BAL e P 36.70 0.20 0.75 36.65 0.05 132.7 314 0.8 0.8
BAL e S 51.60 0.30 0.62 51.66 -0.06 132.7 314 0.8 0.8
MUN e P 39.30 0.50 0.62 39.43 -0.13 152.5 246 -30.8 30.8
MUN e S 57.20 0.30 0.61 57.13 0.07 152.5 246 0.7 0.7
MRWA e S 89.00 0.50 0.52 88.83 0.17 296.3 326 -40.3 40.3
MRWA e SMS 94.30 0.30 0.32 94.65 -0.35 296.3 326 -25.5 25.5
8 times used, S = 0.087
Deferred Data
MRWA e SG 102.00 0.30 0.58 96.86 5.14 296.3 326 0.4 0.4
Velocity Ratios
KLB BAL MUN
KLB 1.68 1.69 1.74
0.10 0.05 0.07
BAL 1.69 1.69 0.00
0.05 0.03 0.00
MUN 1.74 0.00 1.74
0.07 0.00 0.05
Date 1998-01-17
Origin Time 1412 5.46 +- 1.06
Zone 50
Easting 558.11 +- 10.01 Longitude 117.626
Northing 6292.60 +- 2.84 Latitude -33.504
Depth 1.00 +- 10.27 C
Arrival times = 9 S.D. = 0.126 Seismographs = 4
Nearest recorder = 73.8 km Gap = 202.0 deg Accuracy = B
Effects Code = Imax = 0 Fault =
7 km SW (206 deg) of WDN1
WESTERN AUSTRALIA
240 km SE (136 deg) of PERTH
167 km N (352 deg) of ALBANY
21 km N ( 20 deg) of Katanning
Record Dur Sync Unc Resp Seismometer Recorder Pol
NWAO 0.00 Seismograph details unknown
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 i P 17.40 0.10 1.29 17.49 -0.09 73.8 330 1.0 1.0
NWAO i S 25.90 0.10 1.16 25.84 0.06 73.8 330 1.0 1.0
RKG e P 26.80 0.30 0.69 26.84 -0.04 131.1 205 0.6 0.6
RKG e S 41.70 0.30 0.62 41.67 0.03 131.1 205 0.6 0.6
KLB e P 37.70 0.30 0.66 37.70 -0.00 212.4 3 -42.2 42.2
KLB e S2 63.30 0.30 0.33 63.27 0.03 212.4 3 -23.9 23.9
MUN e P 38.30 0.30 0.66 38.02 0.28 215.1 321 -42.2 42.2
MUN e S2 63.70 0.30 0.33 63.94 -0.24 215.1 321 -23.9 23.9
MUN e SG 64.80 0.20 0.65 64.87 -0.07 215.1 321 0.3 0.3
9 times used, S = 0.126
Deferred Data
BAL e PG 59.00 0.50 0.57 59.73 -0.73 332.7 344 0.2 0.2
BAL e S2 94.50 0.50 0.29 93.65 0.85 332.7 344 -23.9 23.9
MRWA e SG 140.60 0.30 0.55 143.50 -2.90 499.7 341 0.1 0.1
Velocity Ratios
NWAO RKG
NWAO 1.71 1.68
0.02 0.12
RKG 1.68 1.70
0.12 0.04
Date 1998-01-18
Origin Time 1837 46.58 +- 5.14
Zone 50
Easting 502.33 +- 22.10 Longitude 117.024
Northing 6625.25 +- 22.11 Latitude -30.505
Depth 3.42 +- 47.64
Arrival times = 8 S.D. = 0.082 Seismographs = 4
Nearest recorder = 32.5 km Gap = 185.1 deg Accuracy = A
Effects Code = Imax = 0 Fault =
2 km W (280 deg) of CA3
WESTERN AUSTRALIA
195 km NE ( 35 deg) of PERTH
14 km W (277 deg) of Burakin
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
BAL i P 51.90 0.10 1.38 51.91 -0.01 32.5 249 6.5 6.5
BAL i S 55.60 0.10 1.24 55.61 -0.01 32.5 249 6.5 6.5
KLB e P 69.00 0.30 0.69 69.02 -0.02 139.4 150 -30.8 30.8
KLB e S 85.00 0.30 0.62 85.10 -0.10 139.4 150 1.5 1.5
MRWA i P 73.90 0.10 1.20 73.83 0.07 173.8 325 -30.8 30.8
MRWA i S 94.20 0.10 1.08 94.28 -0.08 173.8 325 -40.3 40.3
MUN i P 75.00 5.00 0.55 74.73 0.27 180.8 205 -42.2 42.2
MUN SMS 97.50 0.10 0.60 97.51 -0.01 180.8 205 -28.8 28.8
8 times used, S = 0.082
Velocity Ratios
BAL KLB MRWA
BAL 1.70 1.72 1.75
0.05 0.07 0.03
KLB 1.72 1.71 0.00
0.07 0.04 0.00
MRWA 1.75 0.00 1.74
0.03 0.00 0.01
Date 1998-01-30
Origin Time 1637 38.13 +- 0.54
Zone 50
Easting 564.19 +- 4.63 Longitude 117.676
Northing 6518.92 +- 4.47 Latitude -31.463
Depth 1.73 +- 12.85
Arrival times = 7 S.D. = 0.144 Seismographs = 4
Nearest recorder = 16.4 km Gap = 184.2 deg Accuracy = A
Effects Code = Imax = 0 Fault =
3 km NE ( 54 deg) of KBS
WESTERN AUSTRALIA
181 km E ( 73 deg) of PERTH
19 km N (347 deg) of Kellerberrin
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
KLB e P 40.90 0.10 1.02 40.83 0.07 16.4 150 7.1 7.1
KLB e S 42.60 0.10 0.91 42.70 -0.10 16.4 150 7.1 7.1
BAL e P 60.00 0.30 0.69 59.74 0.26 132.5 315 -30.8 30.8
BAL e S 74.50 0.20 0.67 74.73 -0.23 132.5 315 0.9 0.9
MUN e P 62.20 0.10 0.85 62.24 -0.04 150.3 247 -30.8 30.8
MUN e S 79.70 0.10 0.77 79.66 0.04 150.3 247 0.8 0.8
MRWA e SMS 117.80 0.20 0.35 117.82 -0.02 296.5 326 -25.5 25.5
7 times used, S = 0.144
Velocity Ratios
KLB BAL MUN
KLB 1.61 1.67 1.74
0.10 0.05 0.03
BAL 1.67 1.66 0.00
0.05 0.03 0.00
MUN 1.74 0.00 1.73
0.03 0.00 0.01
Date 1998-01-31
Origin Time 1322 38.91 +- 17.26
Zone 50
Easting 852.88 +- 43.42 Longitude 120.399
Northing 7650.36 +- 51.57 Latitude -21.214
Depth 5.00 +- 131.14 N
Arrival times = 6 S.D. = 0.716 Seismographs = 3
Nearest recorder = 627.9 km Gap = 163.8 deg Accuracy = C
Effects Code = Imax = 0 Fault =
59 km E ( 95 deg) of MBL
WESTERN AUSTRALIA
215 km SE (118 deg) of PORT HEDLAND
68 km E ( 94 deg) of Marble Bar
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 3.7
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
MEEK e P 121.60 0.10 0.74 120.98 0.62 627.9 196 -42.2 42.2
MEEK e S 181.20 0.20 0.58 181.97 -0.77 627.9 196 -40.3 40.3
FITZ e P 124.40 0.30 0.59 123.80 0.60 651.7 58 -42.2 42.2
FITZ e S 185.90 0.50 0.48 186.89 -0.99 651.7 58 -40.3 40.3
GIRL e P 124.40 0.30 0.59 124.36 0.04 656.2 254 -42.2 42.2
GIRL e S 187.30 1.00 0.42 187.87 -0.57 656.2 254 -40.3 40.3
6 times used, S = 0.716
Deferred Data
MRWA e P 163.80 0.30 0.57 164.89 -1.09 991.2 205 -42.2 42.2
MRWA e S 254.40 0.20 0.56 258.42 -4.02 991.2 205 -40.3 40.3
WOOL e P 178.20 0.50 0.51 178.22 -0.02 1101.5 173 -42.2 42.2
WOOL e S 280.30 1.00 0.40 281.64 -1.34 1101.5 173 -40.3 40.3
BAL e P 178.00 0.50 0.51 178.55 -0.55 1104.2 198 -42.2 42.2
BAL e S 280.00 0.10 0.63 282.22 -2.22 1104.2 198 -40.3 40.3
KLB e P 187.50 0.30 0.56 187.68 -0.18 1179.7 192 -42.2 42.2
KLB e S 294.00 0.50 0.46 298.11 -4.11 1179.7 192 -40.3 40.3
MUN e P 197.00 0.20 0.61 197.78 -0.78 1263.3 198 -42.2 42.2
MUN e S 313.50 0.30 0.51 315.69 -2.19 1263.3 198 -40.3 40.3
NWAO e P 205.90 0.50 0.51 206.48 -0.58 1335.2 192 -42.2 42.2
Velocity Ratios
MEEK FITZ GIRL
MEEK 1.72 0.00 0.00
0.00 0.00 0.00
FITZ 0.00 1.72 0.00
0.00 0.01 0.00
GIRL 0.00 0.00 1.74
0.00 0.00 0.02