Data Report
Bulletin / 2023-08
Contributed by CUPWA
Date 2023-08-05
Origin Time 2134 42.87 +- 1.45
Zone 50
Easting 610.67 +- 13.96 Longitude 118.197
Northing 6251.71 +- 7.24 Latitude -33.869
Depth 0.39 +- 17.38
Arrival times = 8 S.D. = 0.273 Seismographs = 7
Nearest recorder = 65.5 km Gap = 193.7 deg Accuracy = C
Effects Code = Imax = 0 Fault =
0 km NW (323 deg) of GNOW
WESTERN AUSTRALIA
306 km SE (135 deg) of PERTH
129 km N ( 14 deg) of ALBANY
19 km E ( 70 deg) of Gnowangerup
Record Dur Sync Unc Resp Seismometer Recorder Pol
AALB 0.00 Seismograph details unknown
AHAR 0.00 Seismograph details unknown
AJ02 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 5.6
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
DBYG P 53.80 0.10 1.31 53.56 0.24 65.5 319 0.6 0.6
AJ02 P 63.18 0.10 1.24 63.26 -0.08 125.0 297 0.2 0.2
AALB P 63.80 0.10 1.23 63.78 0.02 128.2 191 0.2 0.2
AKUL P 64.50 0.10 1.23 64.57 -0.07 133.0 358 0.3 0.3
AKUL S 79.50 1.00 0.70 79.62 -0.12 133.0 358 0.3 0.3
NWAO P 64.90 0.10 1.23 65.31 -0.41 137.6 319 -30.8 30.8
RKGY P 65.45 0.20 1.07 65.52 -0.07 139.1 233 -30.8 30.8
PINW P 72.97 0.20 1.04 72.46 0.51 190.1 323 -42.2 42.2
8 times used, S = 0.273
Deferred Data
GNOW S-P 5.00 5.00 0.77 0.10 4.90 0.5 143 0.0 0.0
GNOC S-P 5.00 5.00 0.75 0.29 4.71 2.5 305 0.0 0.0
GNOT S-P 2.50 5.00 0.44 2.16 0.34 19.1 246 0.0 0.0
DBYG S 61.90 1.00 0.74 60.97 0.93 65.5 319 0.6 0.6
AJ02 S 78.70 1.00 0.70 77.39 1.31 125.0 297 0.2 0.2
NWAO S 80.70 1.00 0.70 80.89 -0.19 137.6 319 0.3 0.3
AHAR P 78.60 0.20 1.02 77.37 1.23 230.8 291 -42.2 42.2
KLBR P 81.00 0.20 1.01 80.44 0.56 255.9 350 -42.2 42.2
KLBR S 109.00 1.00 0.66 108.40 0.60 255.9 350 -40.3 40.3
STHX P 88.20 0.30 0.91 87.13 1.07 311.2 20 -42.2 42.2
STHX SG 126.80 1.00 0.65 128.85 -2.05 311.2 20 0.1 0.1
Velocity Ratios
AKUL
AKUL 1.69
0.05
Date 2023-08-05
Origin Time 2134 43.13 +- 7.69
Zone 50
Easting 610.89 +- 48.82 Longitude 118.199
Northing 6252.62 +- 23.32 Latitude -33.861
Depth 6.44 +- 75.47
Arrival times = 8 S.D. = 0.138 Seismographs = 7
Nearest recorder = 19.6 km Gap = 193.8 deg Accuracy = C
Effects Code = Imax = 0 Fault =
1 km N (355 deg) of GNOW
WESTERN AUSTRALIA
305 km SE (135 deg) of PERTH
130 km N ( 14 deg) of ALBANY
20 km NE ( 67 deg) of Gnowangerup
Record Dur Sync Unc Resp Seismometer Recorder Pol
AALB 0.00 Seismograph details unknown
AHAR 0.00 Seismograph details unknown
AJ02 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 5.6
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
GNOT S-P 2.70 5.00 0.65 2.35 0.35 19.6 243 0.0 0.0
DBYG P 53.80 0.10 1.31 53.78 0.02 65.0 318 5.9 5.9
AJ02 P 63.18 0.10 1.24 63.24 -0.06 124.7 296 -30.8 30.8
AALB P 63.80 0.10 1.23 63.86 -0.06 129.1 191 -30.8 30.8
AKUL P 64.50 0.10 1.23 64.30 0.20 132.1 358 -30.8 30.8
AKUL S 79.50 1.00 0.70 79.67 -0.17 132.1 358 2.9 2.9
NWAO P 64.90 0.10 1.23 64.99 -0.09 137.1 318 -30.8 30.8
RKGY P 65.45 0.20 1.07 65.38 0.07 139.8 233 -30.8 30.8
8 times used, S = 0.138
Deferred Data
GNOW S-P 5.00 5.00 0.76 0.78 4.22 1.3 175 0.0 0.0
GNOC S-P 5.00 5.00 0.75 0.81 4.19 2.3 283 0.0 0.0
DBYG S 61.90 1.00 0.74 61.17 0.73 65.0 318 5.9 5.9
AJ02 S 78.70 1.00 0.70 77.63 1.07 124.7 296 3.0 3.0
NWAO S 80.70 1.00 0.70 81.04 -0.34 137.1 318 2.8 2.8
PINW P 72.97 0.20 1.04 71.99 0.98 189.5 323 -42.2 42.2
AHAR P 78.60 0.20 1.02 76.96 1.64 230.7 291 -42.2 42.2
KLBR P 81.00 0.20 1.01 79.93 1.07 255.0 350 -42.2 42.2
KLBR S 109.00 1.00 0.66 107.40 1.60 255.0 350 -40.3 40.3
STHX P 88.20 0.30 0.91 86.61 1.59 310.3 20 -42.2 42.2
STHX SG 126.80 1.00 0.65 128.87 -2.07 310.3 20 1.2 1.2
Velocity Ratios
AKUL
AKUL 1.70
0.06
Date 2023-08-16
Origin Time 0826 41.22 +- 0.00
Zone 50
Easting 616.00 +- 0.00 Longitude 118.254
Northing 6255.19 +- 0.00 Latitude -33.837
Depth 2.00 +- 0.00 N
Arrival times = 3 S.D. = 0.000 Seismographs = 2
Nearest recorder = 25.4 km Gap = 290.0 deg Accuracy = D
Effects Code = Imax = 0 Fault =
4 km N ( 5 deg) of GNOB
WESTERN AUSTRALIA
307 km SE (134 deg) of PERTH
134 km N ( 15 deg) of ALBANY
26 km NE ( 66 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
GNOT S-P 2.88 0.20 1.22 2.88 0.00 25.4 243 0.0 0.0
GNOT i P 45.37 0.05 1.61 45.37 -0.00 25.4 243 5.2 5.2
DBYG P 52.09 0.10 1.30 52.09 0.00 66.6 313 2.0 2.0
3 times used, S = 0.000
Deferred Data
ONGR S-P 1.00 0.10 1.48 1.54 -0.54 13.5 102 0.0 0.0
DBYG S 59.90 0.50 0.85 59.63 0.27 66.6 313 2.0 2.0
AJ02 P 65.20 0.10 1.23 62.13 3.07 128.2 294 0.9 0.9
AJ02 S 79.40 1.00 0.70 76.63 2.77 128.2 294 0.9 0.9
PINW P 72.50 0.10 1.19 70.68 1.82 190.5 321 -42.2 42.2
PINW S 95.20 1.00 0.68 92.66 2.54 190.5 321 -40.3 40.3
NO VELOCITY RATIOS
Date 2023-08-25
Origin Time 1901 10.94 +- 0.53
Zone 50
Easting 498.05 +- 6.31 Longitude 116.979
Northing 6310.27 +- 5.90 Latitude -33.347
Depth 3.10 +- 7.39
Arrival times = 8 S.D. = 0.038 Seismographs = 7
Nearest recorder = 2.2 km Gap = 184.1 deg Accuracy = C
Effects Code = Imax = 0 Fault =
1 km N ( 13 deg) of AJ01
WESTERN AUSTRALIA
201 km NW (336 deg) of ALBANY
188 km SE (146 deg) of PERTH
5 km W (274 deg) of Arthur River
Record Dur Sync Unc Resp Seismometer Recorder Pol
AJ02 0.00 Seismograph details unknown
ARV4 0.00 Seismograph details unknown
ARV5 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
AJ02 S-P 0.39 0.30 1.31 0.38 0.01 2.2 91 0.0 0.0
ARV4 i P 11.91 0.03 2.02 11.91 0.01 3.9 202 29.4 45.2
ARV4 i S 12.38 0.30 1.15 12.40 -0.02 3.9 202 34.5 41.3
NWAO P 19.90 0.10 1.33 19.91 -0.01 52.3 26 -20.5 41.3
DBYG P 22.83 0.20 1.13 22.79 0.04 70.7 97 -20.5 41.3
GNOT P 29.75 0.20 1.08 29.84 -0.09 115.8 124 -20.5 41.3
RKGY P 33.65 0.20 1.07 33.62 0.03 140.0 180 -20.5 41.3
ONGR P 34.20 0.20 1.06 34.15 0.05 143.4 114 -20.5 41.3
8 times used, S = 0.038
Deferred Data
ARV5 S-P 3.00 3.00 0.82 0.40 2.60 2.5 254 0.0 0.0
NWAO S 26.03 1.00 0.76 25.68 0.35 52.3 26 1.3 24.2
PINW P 27.50 0.20 1.10 26.74 0.76 96.1 1 -20.5 41.3
AKUL S 48.00 1.00 0.70 47.14 0.86 132.8 55 -16.6 29.0
RKGY S 49.60 1.00 0.70 49.04 0.56 140.0 180 -16.6 29.0
ONGR S 50.60 1.00 0.69 49.94 0.66 143.4 114 -16.6 29.0
Velocity Ratios
ARV4
ARV4 1.48
0.37
Date 2023-08-27
Origin Time 1138 13.38 +- 1.04
Zone 50
Easting 614.84 +- 12.34 Longitude 118.234
Northing 6314.39 +- 7.05 Latitude -33.303
Depth 2.00 +- 20.79 C
Arrival times = 8 S.D. = 0.263 Seismographs = 6
Nearest recorder = 48.4 km Gap = 172.7 deg Accuracy = C
Effects Code = Imax = 0 Fault =
30 km SW (222 deg) of LKGR
WESTERN AUSTRALIA
269 km SE (124 deg) of PERTH
191 km N ( 10 deg) of ALBANY
32 km SW (224 deg) of Lake Grace
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
DBYG P 21.37 0.20 1.16 21.29 0.08 48.4 253 2.7 2.7
ONGR P 23.72 0.10 1.31 23.82 -0.10 63.9 166 2.1 2.1
ONGR S 30.80 1.00 0.74 31.06 -0.26 63.9 166 2.1 2.1
AKUL P 24.80 0.10 1.30 24.91 -0.11 70.6 353 1.9 1.9
NWAO P 29.80 0.10 1.26 30.07 -0.27 102.2 293 1.3 1.3
NWAO S 41.54 1.00 0.71 41.64 -0.10 102.2 293 1.3 1.3
RKGY P 42.70 0.20 1.04 42.27 0.43 185.6 218 -42.2 42.2
KLBR P 43.80 0.20 1.03 43.42 0.38 195.0 346 -42.2 42.2
8 times used, S = 0.263
Deferred Data
AKUL S 33.50 1.00 0.74 32.91 0.59 70.6 353 1.9 1.9
PINW P 37.97 0.20 1.06 37.00 0.97 147.1 308 -30.8 30.8
RKGY S 64.40 1.00 0.68 63.83 0.57 185.6 218 -40.3 40.3
Velocity Ratios
ONGR NWAO
ONGR 1.68 0.00
0.11 0.00
NWAO 0.00 1.72
0.00 0.07
Date 2023-08-31
Origin Time 1551 48.14 +- 0.86
Zone 50
Easting 497.41 +- 13.19 Longitude 116.972
Northing 6308.41 +- 16.39 Latitude -33.363
Depth 1.69 +- 10.54
Arrival times = 7 S.D. = 0.166 Seismographs = 5
Nearest recorder = 1.9 km Gap = 149.6 deg Accuracy = C
Effects Code = Imax = 0 Fault =
0 km SW (208 deg) of AJ01
WESTERN AUSTRALIA
199 km NE ( 58 deg) of AUGUSTA
189 km SE (146 deg) of PERTH
6 km W (255 deg) of Arthur River
Record Dur Sync Unc Resp Seismometer Recorder Pol
AHAR 0.00 Seismograph details unknown
AJ02 0.00 Seismograph details unknown
ARV4 0.00 Seismograph details unknown
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
ARV4 i P 48.80 0.10 1.64 48.67 0.13 1.9 206 41.6 41.6
ARV4 i S 48.80 0.03 1.88 48.91 -0.11 1.9 206 41.6 41.6
AJ02 i P 48.97 0.03 2.03 48.92 0.05 3.4 57 26.7 26.7
NWAO P 57.20 0.10 1.33 57.51 -0.31 54.2 26 -36.7 36.7
NWAO S 63.50 1.00 0.75 63.45 0.05 54.2 26 -24.2 24.2
AHAR P 65.60 0.20 1.09 65.43 0.17 105.1 286 -41.3 41.3
AKUL P 70.20 0.20 1.07 70.05 0.15 134.4 55 -41.3 41.3
7 times used, S = 0.166
Deferred Data
AKUL S 85.30 1.00 0.70 84.89 0.41 134.4 55 -29.0 29.0
RKGY P 70.50 0.20 1.07 70.64 -0.14 138.2 179 -41.3 41.3
ONGR P 71.00 0.20 1.06 71.43 -0.43 143.2 113 -41.3 41.3
ONGR S 87.50 1.00 0.69 87.22 0.28 143.2 113 -29.0 29.0
Velocity Ratios
ARV4 NWAO
ARV4 1.00 1.75
0.23 0.17
NWAO 1.75 1.70
0.17 0.13