Data Report
Bulletin / 2021-12
Contributed by CUPWA
Date 2021-12-05
Origin Time 1346 9.85 +- 0.79
Zone 50
Easting 574.04 +- 6.10 Longitude 117.771
Northing 6638.02 +- 5.75 Latitude -30.387
Depth 2.00 +- 20.64 N
Arrival times = 10 S.D. = 0.260 Seismographs = 6
Nearest recorder = 5.7 km Gap = 138.7 deg Accuracy = B
Effects Code = Imax = 0 Fault =
4 km NE ( 30 deg) of BEAW
WESTERN AUSTRALIA
252 km NE ( 47 deg) of PERTH
12 km NW (306 deg) of Beacon
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
BCON P 10.80 0.05 1.78 10.85 -0.05 5.7 354 21.9 21.9
WATG P 18.98 0.10 1.32 19.00 -0.02 56.1 133 2.1 2.1
WATG S 25.50 1.00 0.75 25.35 0.15 56.1 133 2.1 2.1
KORD P 19.44 0.10 1.31 19.64 -0.20 60.0 205 2.0 2.0
KORD S 26.10 1.00 0.75 26.44 -0.34 60.0 205 2.0 2.0
CADX i P 22.40 0.10 1.29 21.94 0.46 74.1 234 1.8 1.8
BLDU P 26.70 0.20 1.09 26.96 -0.26 104.9 255 1.3 1.3
BLDU S 38.50 1.00 0.71 38.82 -0.32 104.9 255 1.3 1.3
WLBG P 33.90 0.10 1.22 33.66 0.24 148.5 256 -30.8 30.8
WLBG S 50.90 1.00 0.69 50.86 0.04 148.5 256 0.8 0.8
10 times used, S = 0.260
Deferred Data
CADX S 30.15 1.00 0.73 30.33 -0.18 74.1 234 1.8 1.8
MORW P 44.50 0.30 0.94 43.18 1.32 222.3 310 -42.2 42.2
MORW S 68.40 1.00 0.67 68.02 0.38 222.3 310 -40.3 40.3
MUN P 44.73 0.20 1.02 44.19 0.54 230.8 219 -42.2 42.2
Velocity Ratios
WATG KORD BLDU WLBG
WATG 1.71 0.00 0.00 1.70
0.13 0.00 0.00 0.16
KORD 0.00 1.69 0.00 1.72
0.00 0.12 0.00 0.16
BLDU 0.00 0.00 1.70 0.00
0.00 0.00 0.08 0.00
WLBG 1.70 1.72 0.00 1.71
0.16 0.16 0.00 0.05
Date 2021-12-07
Origin Time 0932 24.25 +- 2.93
Zone 50
Easting 567.25 +- 7.33 Longitude 117.699
Northing 6651.23 +- 21.32 Latitude -30.269
Depth -0.38 +- 20.36
Arrival times = 8 S.D. = 0.061 Seismographs = 5
Nearest recorder = 9.8 km Gap = 249.4 deg Accuracy = A
Effects Code = Imax = 0 Fault =
5 km SE (151 deg) of BCN1
WESTERN AUSTRALIA
257 km NE ( 44 deg) of PERTH
26 km NW (321 deg) of Beacon
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.9
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BCON P 25.84 0.10 1.50 25.85 -0.01 9.8 139 -0.4 -0.4
BCON S 26.84 0.50 0.98 26.96 -0.11 9.8 139 -0.4 -0.4
KORD P 35.71 0.10 1.30 35.67 0.04 70.0 195 -0.2 -0.2
WATG P 35.77 0.10 1.30 35.71 0.06 70.3 137 -0.2 -0.2
WATG S 43.71 1.00 0.74 43.66 0.05 70.3 137 -0.2 -0.2
BLDU P 40.88 0.20 1.09 40.96 -0.08 102.4 247 -0.0 -0.0
BLDU S 52.58 1.00 0.71 52.54 0.04 102.4 247 -0.0 -0.0
MUN P 59.60 0.30 0.94 59.60 0.00 236.9 216 -42.2 42.2
8 times used, S = 0.061
Deferred Data
KORD S 43.12 1.00 0.74 43.59 -0.48 70.0 195 -0.2 -0.2
MORW P 56.71 0.20 1.03 56.18 0.53 208.6 309 -42.2 42.2
MORW S 80.55 1.00 0.67 79.96 0.59 208.6 309 -40.3 40.3
Velocity Ratios
BCON WATG BLDU
BCON 1.63 1.70 1.71
0.44 0.19 0.14
WATG 1.70 1.69 0.00
0.19 0.10 0.00
BLDU 1.71 0.00 1.70
0.14 0.00 0.08
Date 2021-12-07
Origin Time 0932 23.86 +- 20.91
Zone 50
Easting 566.73 +- 60.93 Longitude 117.694
Northing 6650.39 +- 166.40 Latitude -30.276
Depth 3.41 +- 166.72
Arrival times = 5 S.D. = 0.085 Seismographs = 4
Nearest recorder = 9.5 km Gap = 246.0 deg Accuracy = A
Effects Code = Imax = 0 Fault =
5 km S (159 deg) of BCN1
WESTERN AUSTRALIA
256 km NE ( 44 deg) of PERTH
26 km NW (319 deg) of Beacon
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.9
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
BCON P 25.84 0.10 1.50 25.77 0.07 9.5 134 11.2 38.1
BCON S 26.84 0.50 0.98 26.97 -0.13 9.5 134 13.3 30.5
KORD P 35.71 0.10 1.30 35.65 0.06 69.0 195 -13.5 38.8
WATG P 35.77 0.10 1.30 35.80 -0.03 70.0 136 -13.5 38.8
BLDU P 40.88 0.20 1.10 40.96 -0.08 101.6 248 -13.5 38.8
5 times used, S = 0.085
Deferred Data
KORD S 43.12 1.00 0.74 43.83 -0.71 69.0 195 1.1 27.7
WATG S 43.71 1.00 0.74 44.10 -0.38 70.0 136 1.1 27.7
BLDU S 52.58 1.00 0.71 53.08 -0.49 101.6 248 -10.2 29.4
MORW P 56.71 0.20 1.03 57.27 -0.56 208.7 309 -39.9 52.0
MORW S 80.55 1.00 0.67 81.74 -1.19 208.7 309 -37.9 45.7
MUN P 59.60 0.30 0.94 60.74 -1.14 235.9 216 -39.9 52.0
Velocity Ratios
BCON
BCON 1.50
0.34
Date 2021-12-08
Origin Time 1313 36.76 +- 3.08
Zone 50
Easting 565.62 +- 11.97 Longitude 117.682
Northing 6649.30 +- 23.44 Latitude -30.286
Depth -1.68 +- 54.62
Arrival times = 7 S.D. = 0.153 Seismographs = 5
Nearest recorder = 9.7 km Gap = 236.4 deg Accuracy = C
Effects Code = Imax = 0 Fault =
6 km S (172 deg) of BCN1
WESTERN AUSTRALIA
254 km NE ( 44 deg) of PERTH
26 km NW (315 deg) of Beacon
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
BCON P 38.21 0.10 1.50 38.35 -0.15 9.7 124 -8.1 -8.1
KORD P 47.70 0.10 1.30 47.81 -0.11 67.7 194 -1.3 -1.3
KORD S 55.34 1.00 0.74 55.47 -0.13 67.7 194 -1.3 -1.3
WATG P 48.25 0.10 1.30 48.18 0.07 70.0 135 -1.3 -1.3
WATG S 56.40 1.00 0.74 56.10 0.30 70.0 135 -1.3 -1.3
BLDU P 53.20 0.20 1.10 53.10 0.10 100.2 248 -0.8 -0.8
KLBR P 60.54 0.20 1.06 60.39 0.15 144.8 177 -0.5 -0.5
7 times used, S = 0.153
Deferred Data
BLDU S 65.13 1.00 0.72 64.43 0.70 100.2 248 -0.8 -0.8
KLBR S 76.50 1.00 0.69 76.77 -0.27 144.8 177 -0.5 -0.5
MORW P 70.07 0.20 1.03 68.83 1.24 208.6 310 -42.2 42.2
MORW S 92.90 1.00 0.67 92.70 0.20 208.6 310 -40.3 40.3
Velocity Ratios
KORD WATG
KORD 1.70 0.00
0.11 0.00
WATG 0.00 1.71
0.00 0.10
Date 2021-12-08
Origin Time 1313 36.45 +- 10.23
Zone 50
Easting 565.30 +- 6.31 Longitude 117.679
Northing 6647.55 +- 10.05 Latitude -30.302
Depth 2.12 +- 73.81
Arrival times = 9 S.D. = 0.098 Seismographs = 6
Nearest recorder = 9.1 km Gap = 164.2 deg Accuracy = B
Effects Code = Imax = 0 Fault =
8 km S (175 deg) of BCN1
WESTERN AUSTRALIA
253 km NE ( 44 deg) of PERTH
25 km NW (312 deg) of Beacon
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
BCON P 38.21 0.10 1.51 38.27 -0.06 9.1 114 -36.7 36.7
KORD P 47.70 0.10 1.30 47.72 -0.02 65.9 194 -36.7 36.7
KORD S 55.34 1.00 0.74 55.53 -0.19 65.9 194 -27.7 27.7
WATG P 48.25 0.10 1.30 48.23 0.02 69.0 134 -36.7 36.7
WATG S 56.40 1.00 0.74 56.40 0.00 69.0 134 -27.7 27.7
BLDU P 53.20 0.20 1.10 53.22 -0.02 99.3 249 -38.8 38.8
BLDU S 65.13 1.00 0.72 65.05 0.08 99.3 249 -27.7 27.7
KLBR P 60.54 0.20 1.06 60.33 0.21 143.1 177 -38.8 38.8
MORW P 70.07 0.20 1.03 70.09 -0.02 209.5 310 -52.0 52.0
9 times used, S = 0.098
Deferred Data
KLBR S 76.50 1.00 0.69 77.34 -0.84 143.1 177 -29.4 29.4
MORW S 92.90 1.00 0.67 94.73 -1.83 209.5 310 -45.7 45.7
Velocity Ratios
KORD WATG BLDU
KORD 1.68 0.00 0.00
0.10 0.00 0.00
WATG 0.00 1.69 0.00
0.00 0.10 0.00
BLDU 0.00 0.00 1.71
0.00 0.00 0.08
Date 2021-12-10
Origin Time 1809 23.42 +- 0.89
Zone 50
Easting 562.90 +- 13.24 Longitude 117.677
Northing 6301.21 +- 7.67 Latitude -33.426
Depth 5.34 +- 16.04
Arrival times = 7 S.D. = 0.134 Seismographs = 5
Nearest recorder = 5.3 km Gap = 117.4 deg Accuracy = A
Effects Code = Imax = 0 Fault =
2 km NE ( 36 deg) of WDN1
WESTERN AUSTRALIA
237 km SE (134 deg) of PERTH
175 km N (354 deg) of ALBANY
13 km S (203 deg) of Dumbleyung
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
DBYG P 24.61 0.05 1.79 24.68 -0.07 5.3 85 46.9 46.9
DBYG i S 25.66 0.20 1.22 25.56 0.10 5.3 85 46.9 46.9
NWAO P 34.90 0.10 1.30 34.74 0.16 69.1 323 4.6 4.6
NWAO S 42.20 1.00 0.74 42.58 -0.38 69.1 323 4.6 4.6
ONGR P 36.84 0.10 1.28 36.90 -0.06 82.4 126 3.9 3.9
AKUL P 38.96 0.10 1.27 38.93 0.03 94.9 27 3.4 3.4
RKGY P 46.70 0.20 1.06 46.65 0.05 146.2 205 -30.8 30.8
7 times used, S = 0.134
Deferred Data
AKUL S 50.20 1.00 0.72 49.69 0.51 94.9 27 3.4 3.4
RKGY S 63.02 1.00 0.69 63.84 -0.82 146.2 205 2.2 2.2
MUN P 54.80 0.30 0.95 55.07 -0.27 211.5 319 -42.2 42.2
MUN S 78.90 1.00 0.67 78.71 0.19 211.5 319 -40.3 40.3
Velocity Ratios
DBYG NWAO
DBYG 1.88 1.61
0.26 0.14
NWAO 1.61 1.64
0.14 0.10
Date 2021-12-27
Origin Time 0326 10.17 +- 1.67
Zone 50
Easting 593.97 +- 9.74 Longitude 118.016
Northing 6252.89 +- 9.63 Latitude -33.860
Depth 5.46 +- 36.82
Arrival times = 7 S.D. = 0.165 Seismographs = 4
Nearest recorder = 35.1 km Gap = 137.8 deg Accuracy = B
Effects Code = Imax = 0 Fault =
8 km N ( 4 deg) of GNOT
WESTERN AUSTRALIA
293 km SE (137 deg) of PERTH
127 km N ( 6 deg) of ALBANY
8 km N ( 11 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 2.3
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
ONGR P 15.93 0.10 1.37 15.98 -0.05 35.1 90 9.3 9.3
NWAO P 30.40 0.10 1.24 30.63 -0.23 126.5 324 -30.8 30.8
NWAO S 45.20 1.00 0.70 45.16 0.04 126.5 324 2.6 2.6
RKGY P 30.80 0.20 1.08 30.66 0.14 126.7 228 -30.8 30.8
RKGY S 45.20 1.00 0.70 45.21 -0.01 126.7 228 2.6 2.6
AKUL P 31.65 0.20 1.07 31.49 0.16 132.6 5 -30.8 30.8
AKUL S 47.00 1.00 0.70 46.82 0.18 132.6 5 2.5 2.5
7 times used, S = 0.165
Deferred Data
KLBR P 48.60 0.20 1.01 46.80 1.80 252.7 354 -42.2 42.2
KLBR S 75.80 1.00 0.66 74.13 1.67 252.7 354 -40.3 40.3
MUN P 49.75 0.30 0.93 48.70 1.05 268.5 320 -42.2 42.2
MUN S 79.80 1.00 0.66 77.44 2.36 268.5 320 -40.3 40.3
Velocity Ratios
NWAO RKGY AKUL
NWAO 1.73 0.00 0.00
0.06 0.00 0.00
RKGY 0.00 1.70 0.00
0.00 0.07 0.00
AKUL 0.00 0.00 1.71
0.00 0.00 0.06