Data Report
Bulletin / 2023-08
Contributed by CUPWA
Date 2023-08-04 Event type = A
Origin Time 1543 41.99 +- 0.00
Zone 55
Easting 681.22 +- 0.00 Longitude 148.729
Northing 7818.59 +- 0.00 Latitude -19.720
Depth 10.00 +- 0.00 N
Arrival times = 4 S.D. = 0.008 Seismographs = 2
Nearest recorder = 60.5 km Gap = 358.8 deg Accuracy = Z
Effects Code = Imax = 0 Fault =
60 km NE ( 58 deg) of BW1H
AUSTRALIA
QUEENSLAND
963 km NW (332 deg) of BRISBANE
261 km E ( 82 deg) of CHARTERS TOWERS
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
BW1H 61 1.1
BW2S 62 1.3
Mean 1.2 Assign ML 1.3
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BW1H P 51.89 0.10 1.31 51.88 0.01 60.5 238 -28.7 28.7
BW1H S 59.41 0.10 1.18 59.42 -0.01 60.5 238 -29.7 29.7
BW2S P 52.00 0.10 1.31 52.01 -0.01 61.3 239 -28.7 28.7
BW2S S 59.64 0.10 1.18 59.63 0.01 61.3 239 -29.7 29.7
4 times used, S = 0.008
Velocity Ratios
BW1H BW2S
BW1H 1.76 0.00
0.03 0.00
BW2S 0.00 1.76
0.00 0.03
Date 2023-08-07 Event type = AB
Origin Time 0107 51.31 +- 3.69
Zone 55
Easting 587.65 +- 123.82 Longitude 147.841
Northing 7733.79 +- 372.89 Latitude -20.492
Depth 10.00 +- 363.96 N
Arrival times = 6 S.D. = 0.054 Seismographs = 3
Nearest recorder = 67.7 km Gap = 283.9 deg Accuracy = Q
Effects Code = Imax = 0 Fault =
16 km W (268 deg) of BOW4
AUSTRALIA
QUEENSLAND
935 km NW (325 deg) of BRISBANE
170 km E (106 deg) of CHARTERS TOWERS
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
BW1H 68 1.9
BW2S 68 1.7
TV1H 175 1.2
Mean 1.6 Assign ML 1.6
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BW2S P 62.20 0.10 1.30 62.29 -0.09 67.7 36 -28.7 28.7
BW2S S 70.63 0.10 1.17 70.64 -0.01 67.7 36 -29.7 29.7
BW1H P 62.38 0.10 1.30 62.33 0.05 68.0 37 -28.7 28.7
BW1H S 70.74 0.10 1.17 70.71 0.03 68.0 37 -29.7 29.7
TV1H P 77.82 0.10 1.20 77.78 0.04 174.7 321 -42.6 42.6
TV1H S 97.45 0.10 1.08 97.47 -0.02 174.7 321 -44.2 44.2
6 times used, S = 0.054
Velocity Ratios
BW2S BW1H TV1H
BW2S 1.77 0.00 1.72
0.03 0.00 0.04
BW1H 0.00 1.76 1.73
0.00 0.03 0.04
TV1H 1.72 1.73 1.74
0.04 0.04 0.01
Date 2023-08-07 Event type = A
Origin Time 1121 2.21 +- 9.26
Zone 55
Easting 604.44 +- 493.82 Longitude 148.002
Northing 7729.44 +- 817.23 Latitude -20.531
Depth 10.00 +- 927.49 N
Arrival times = 6 S.D. = 0.372 Seismographs = 3
Nearest recorder = 63.2 km Gap = 295.3 deg Accuracy = Q
Effects Code = Imax = 0 Fault =
4 km S (180 deg) of BOW4
AUSTRALIA
QUEENSLAND
922 km NW (325 deg) of BRISBANE
188 km E (106 deg) of CHARTERS TOWERS
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
BW1H 63 1.6
BW2S 64 1.6
TV1H 189 0.9
Mean 1.4 Assign ML 1.4
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BW1H P 12.20 0.10 1.31 12.51 -0.31 63.2 22 -28.7 28.7
BW1H S 20.45 0.10 1.18 20.35 0.10 63.2 22 -29.7 29.7
BW2S P 12.36 0.10 1.31 12.53 -0.17 63.3 21 -28.7 28.7
BW2S S 20.61 0.10 1.18 20.38 0.23 63.3 21 -29.7 29.7
TV1H P 31.06 0.10 1.19 30.47 0.59 188.9 318 -42.6 42.6
TV1H S 51.03 0.10 1.07 51.46 -0.43 188.9 318 -44.2 44.2
6 times used, S = 0.372
Velocity Ratios
BW1H BW2S TV1H
BW1H 1.83 0.00 1.62
0.03 0.00 0.03
BW2S 0.00 1.81 1.63
0.00 0.03 0.03
TV1H 1.62 1.63 1.69
0.03 0.03 0.01
Date 2023-08-19 Event type = E
Origin Time 1246 10.97 +- 3.28
Zone 55
Easting 617.30 +- 34.87 Longitude 148.119
Northing 7831.64 +- 30.51 Latitude -19.607
Depth 10.00 +- 35.07 N
Arrival times = 8 S.D. = 0.462 Seismographs = 4
Nearest recorder = 44.7 km Gap = 239.2 deg Accuracy = Q
Effects Code = Imax = 0 Fault =
38 km NE ( 49 deg) of BOW2
AUSTRALIA
QUEENSLAND
201 km E ( 75 deg) of CHARTERS TOWERS
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
BW1H 46 0.8
BW2S 45 1.2
CTAO 202 0.6
TV1H 144 0.6
Mean 0.8 Assign ML 0.8
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BW2S P 18.41 0.10 1.35 18.50 -0.09 44.7 165 -28.7 28.7
BW2S S 24.35 0.10 1.21 24.25 0.10 44.7 165 -29.7 29.7
BW1H P 18.43 0.10 1.34 18.65 -0.22 45.7 164 -28.7 28.7
BW1H S 24.41 0.10 1.21 24.51 -0.10 45.7 164 -29.7 29.7
TV1H P 33.84 0.10 1.22 33.45 0.39 144.1 285 -28.7 28.7
TV1H S 49.54 0.10 1.10 50.47 -0.93 144.1 285 -44.2 44.2
CTAO P 41.62 0.10 1.18 40.88 0.74 202.3 254 -42.6 42.6
CTAO S 63.11 0.10 1.07 63.07 0.04 202.3 254 -44.2 44.2
8 times used, S = 0.462
Velocity Ratios
BW2S BW1H TV1H CTAO
BW2S 1.80 0.00 1.63 1.67
0.04 0.00 0.03 0.02
BW1H 0.00 1.80 1.63 1.67
0.00 0.04 0.03 0.02
TV1H 1.63 1.63 1.69 1.74
0.03 0.03 0.01 0.07
CTAO 1.67 1.67 1.74 1.70
0.02 0.02 0.07 0.01