Data Report
Bulletin / 2021-10
Contributed by CUPWA
Date 2021-10-17
Origin Time 1601 42.71 +- 0.73
Zone 50
Easting 607.73 +- 6.82 Longitude 118.156
Northing 6326.90 +- 5.19 Latitude -33.191
Depth 2.00 +- 22.72 N
Arrival times = 10 S.D. = 0.259 Seismographs = 7
Nearest recorder = 47.0 km Gap = 124.5 deg Accuracy = C
Effects Code = Imax = 0 Fault =
29 km W (250 deg) of LKGR
WESTERN AUSTRALIA
257 km SE (123 deg) of PERTH
202 km N ( 8 deg) of ALBANY
31 km W (251 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 2.2
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
DBYG P 50.46 0.10 1.34 50.38 0.08 47.0 236 2.8 2.8
AKUL P 51.70 0.10 1.32 52.15 -0.45 57.8 359 2.3 2.3
ONGR P 55.14 0.10 1.29 55.41 -0.27 77.8 163 1.7 1.7
ONGR S 64.40 1.00 0.73 64.22 0.18 77.8 163 1.7 1.7
NWAO P 57.54 0.10 1.27 57.56 -0.02 91.0 288 1.4 1.4
NWAO S 67.90 1.00 0.72 67.85 0.05 91.0 288 1.4 1.4
HYDN P 60.22 0.10 1.25 59.98 0.24 105.8 38 1.1 1.1
HYDN S 72.20 1.00 0.71 71.95 0.25 105.8 38 1.1 1.1
COR2 P 63.80 0.10 1.23 63.63 0.17 128.2 342 1.0 1.0
RKGY P 72.50 0.20 1.04 72.29 0.21 191.3 214 -42.2 42.2
10 times used, S = 0.259
Deferred Data
DBYG S 56.37 1.00 0.76 55.70 0.67 47.0 236 2.8 2.8
AKUL S 57.90 1.00 0.75 58.69 -0.79 57.8 359 2.3 2.3
COR2 S 78.80 1.00 0.70 78.14 0.66 128.2 342 1.0 1.0
PINW P 66.67 0.10 1.23 64.47 2.20 133.8 305 -30.8 30.8
PINW S 82.80 1.00 0.70 79.67 3.13 133.8 305 0.9 0.9
KLBR P 71.70 0.20 1.04 71.09 0.61 181.3 347 -42.2 42.2
KLBR S 92.40 1.00 0.68 92.26 0.14 181.3 347 -40.3 40.3
RKGY S 95.00 1.00 0.68 94.36 0.64 191.3 214 -40.3 40.3
MEKS PG 76.10 0.20 1.03 74.64 1.46 195.7 327 0.7 0.7
MEKS SG 97.10 1.00 0.54 96.77 0.33 195.7 327 0.7 0.7
Velocity Ratios
ONGR NWAO HYDN
ONGR 1.75 0.00 0.00
0.10 0.00 0.00
NWAO 0.00 1.70 0.00
0.00 0.08 0.00
HYDN 0.00 0.00 1.68
0.00 0.00 0.07
Date 2021-10-20
Origin Time 0528 50.35 +- 1.36
Zone 50
Easting 650.37 +- 6.88 Longitude 118.568
Northing 6620.58 +- 11.51 Latitude -30.538
Depth 2.04 +- 18.99
Arrival times = 9 S.D. = 0.216 Seismographs = 6
Nearest recorder = 41.4 km Gap = 210.9 deg Accuracy = B
Effects Code = Imax = 0 Fault =
3 km NW (335 deg) of BR3
WESTERN AUSTRALIA
303 km NE ( 60 deg) of PERTH
19 km E ( 93 deg) of Bonnie Rock
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.4
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
WATG P 57.03 0.10 1.35 57.11 -0.08 41.4 238 3.0 3.0
WATG S 61.70 1.00 0.77 61.81 -0.11 41.4 238 3.0 3.0
BCON P 63.72 0.10 1.28 63.44 0.28 80.2 286 1.7 1.7
BCON S 71.90 1.00 0.73 72.52 -0.62 80.2 286 1.7 1.7
STHX P 67.48 0.10 1.25 67.59 -0.11 105.7 136 1.3 1.3
KORD P 68.20 0.10 1.25 68.08 0.12 108.7 249 1.1 1.1
KLBR P 73.10 0.10 1.22 73.02 0.08 140.2 213 -30.8 30.8
KLBR S 89.20 1.00 0.70 89.08 0.12 140.2 213 1.0 1.0
BLDU P 78.26 0.20 1.04 78.37 -0.11 178.4 266 -42.2 42.2
9 times used, S = 0.216
Deferred Data
STHX S 80.00 1.00 0.71 79.54 0.46 105.7 136 1.3 1.3
KORD S 80.70 1.00 0.71 80.37 0.33 108.7 249 1.1 1.1
BLDU S 99.70 1.00 0.68 99.28 0.42 178.4 266 -40.3 40.3
COR2 P 80.49 0.10 1.19 79.55 0.94 188.2 203 -42.2 42.2
COR2 SG 102.23 1.00 0.68 102.34 -0.11 188.2 203 0.7 0.7
MEKS P 81.98 0.10 1.19 80.32 1.66 194.7 227 -42.2 42.2
AKUL S 114.30 1.00 0.66 112.17 2.13 239.6 189 -40.3 40.3
MUN P 91.40 0.30 0.92 90.11 1.29 275.6 233 -42.2 42.2
NWAO P 94.12 0.30 0.92 92.27 1.85 293.4 205 -42.2 42.2
NWAO S 128.30 1.00 0.65 123.48 4.82 293.4 205 -40.3 40.3
MORW P 92.01 0.30 0.92 92.30 -0.29 293.6 303 -42.2 42.2
MORW S 125.30 1.00 0.65 123.53 1.77 293.6 303 -40.3 40.3
Velocity Ratios
WATG BCON KLBR
WATG 1.70 0.00 1.71
0.18 0.00 0.15
BCON 0.00 1.61 0.00
0.00 0.09 0.00
KLBR 1.71 0.00 1.71
0.15 0.00 0.05
Date 2021-10-21
Origin Time 0331 22.79 +- 1.05
Zone 50
Easting 521.09 +- 9.78 Longitude 117.223
Northing 6461.17 +- 7.93 Latitude -31.985
Depth 5.52 +- 22.16
Arrival times = 8 S.D. = 0.282 Seismographs = 6
Nearest recorder = 36.0 km Gap = 151.5 deg Accuracy = C
Effects Code = Imax = 0 Fault =
4 km W (275 deg) of QUW
WESTERN AUSTRALIA
130 km E ( 92 deg) of PERTH
31 km NE ( 62 deg) of Beverley
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
MEKS P 29.02 0.10 1.37 28.73 0.29 36.0 330 9.1 9.1
MEKS S 32.40 1.00 0.78 32.85 -0.45 36.0 330 9.1 9.1
COR2 P 31.52 0.10 1.33 31.24 0.28 51.4 102 6.5 6.5
COR2 S 37.10 1.00 0.76 37.09 0.01 51.4 102 6.5 6.5
KLBR P 33.40 0.10 1.30 33.70 -0.30 66.6 49 5.0 5.0
NWAO P 39.64 0.10 1.26 39.84 -0.20 104.4 179 3.2 3.2
BLDU P 48.10 0.20 1.05 47.93 0.17 159.9 342 -30.8 30.8
BCON P 51.70 0.20 1.04 51.82 -0.12 189.9 15 -42.2 42.2
8 times used, S = 0.282
Deferred Data
KLBR S 41.80 1.00 0.74 41.26 0.54 66.6 49 5.0 5.0
MUN P 31.38 0.20 1.10 38.46 -7.08 95.9 270 3.4 3.4
MUN S 48.80 1.00 0.72 49.33 -0.53 95.9 270 3.4 3.4
NWAO S 53.00 1.00 0.71 51.67 1.33 104.4 179 3.2 3.2
BLDU S 66.10 1.00 0.69 66.84 -0.74 159.9 342 -23.9 23.9
WATG P 49.50 0.20 1.05 48.91 0.59 167.0 33 -30.8 30.8
WATG S 68.80 1.00 0.68 68.61 0.19 167.0 33 -23.9 23.9
Velocity Ratios
MEKS COR2
MEKS 1.54 0.00
0.19 0.00
COR2 0.00 1.64
0.00 0.13
Date 2021-10-31
Origin Time 1520 27.37 +- 1.43
Zone 50
Easting 638.00 +- 11.80 Longitude 118.487
Northing 6280.94 +- 6.26 Latitude -33.602
Depth 3.82 +- 14.13
Arrival times = 10 S.D. = 0.194 Seismographs = 6
Nearest recorder = 30.2 km Gap = 213.1 deg Accuracy = B
Effects Code = Imax = 0 Fault =
15 km SW (231 deg) of PIN
WESTERN AUSTRALIA
308 km SE (127 deg) of PERTH
165 km N ( 20 deg) of ALBANY
Record Dur Sync Unc Resp Seismometer Recorder Pol
AALB 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
ONGR P 32.45 0.10 1.39 32.34 0.11 30.2 196 7.8 7.8
DBYG P 39.25 0.10 1.29 39.27 -0.02 72.8 285 3.2 3.2
DBYG S 48.00 1.00 0.74 47.51 0.49 72.8 285 3.2 3.2
TMBL P 42.31 0.10 1.27 42.49 -0.18 92.6 237 2.4 2.4
AKUL P 44.90 0.10 1.25 45.00 -0.10 108.0 343 2.2 2.2
AKUL S 57.50 1.00 0.71 57.22 0.28 108.0 343 2.2 2.2
NWAO P 49.75 0.20 1.07 49.69 0.06 138.8 302 -30.8 30.8
NWAO S 65.30 1.00 0.70 65.72 -0.42 138.8 302 1.7 1.7
RKGY P 55.20 0.30 0.96 55.21 -0.01 178.5 230 -42.2 42.2
RKGY S 76.00 1.00 0.68 76.00 -0.00 178.5 230 -40.3 40.3
10 times used, S = 0.194
Deferred Data
AALB P 53.50 0.30 0.97 53.20 0.30 164.0 198 -30.8 30.8
COR2 e PG 57.20 1.00 0.42 57.00 0.20 181.6 337 1.3 1.3
COR2 SG 77.50 1.00 0.54 77.55 -0.05 181.6 337 1.3 1.3
KLBR P 63.20 0.30 0.94 61.83 1.37 233.3 342 -42.2 42.2
Velocity Ratios
DBYG AKUL NWAO RKGY
DBYG 1.74 0.00 0.00 1.76
0.10 0.00 0.00 0.17
AKUL 0.00 1.72 0.00 0.00
0.00 0.07 0.00 0.00
NWAO 0.00 0.00 1.69 0.00
0.00 0.00 0.06 0.00
RKGY 1.76 0.00 0.00 1.75
0.17 0.00 0.00 0.06
Date 2021-10-31
Origin Time 1655 40.47 +- 2.20
Zone 50
Easting 658.33 +- 16.33 Longitude 118.699
Northing 6324.35 +- 8.76 Latitude -33.208
Depth 2.34 +- 25.36
Arrival times = 9 S.D. = 0.053 Seismographs = 5
Nearest recorder = 78.0 km Gap = 241.6 deg Accuracy = C
Effects Code = Imax = 0 Fault =
25 km SE (117 deg) of LKGR
WESTERN AUSTRALIA
302 km SE (118 deg) of PERTH
213 km N ( 21 deg) of ALBANY
24 km SE (119 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 2.5
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
ONGR P 53.24 0.20 1.12 53.20 0.04 78.0 200 1.9 1.9
AKUL P 53.31 0.10 1.29 53.30 0.01 78.6 319 2.0 2.0
AKUL S 62.10 1.00 0.73 62.19 -0.09 78.6 319 2.0 2.0
DBYG P 55.60 0.20 1.10 55.65 -0.05 93.0 254 1.6 1.6
DBYG S 66.20 1.00 0.72 66.17 0.03 93.0 254 1.6 1.6
TMBL P 62.34 0.10 1.23 62.39 -0.05 135.1 226 -30.8 30.8
TMBL S 77.80 1.00 0.70 77.81 -0.01 135.1 226 1.0 1.0
NWAO P 63.20 0.20 1.07 63.13 0.07 140.3 282 -30.8 30.8
NWAO S 79.30 1.00 0.69 79.24 0.06 140.3 282 1.1 1.1
9 times used, S = 0.053
Deferred Data
COR2 P 66.10 0.10 1.21 64.87 1.23 152.7 324 -30.8 30.8
COR2 S 83.60 1.00 0.69 82.67 0.93 152.7 324 1.0 1.0
KLBR PG 73.00 0.20 0.96 73.11 -0.11 200.0 333 0.8 0.8
KLBR SG 95.70 1.00 0.53 95.73 -0.03 200.0 333 0.8 0.8
RKGY P 75.00 0.30 0.94 73.78 1.22 222.4 225 -42.2 42.2
RKGY S 100.60 1.00 0.67 98.62 1.98 222.4 225 -40.3 40.3
MUN P 80.95 0.30 0.93 79.60 1.35 270.6 299 -42.2 42.2
MUN S 111.20 1.00 0.65 108.74 2.46 270.6 299 -40.3 40.3
WATG P 82.10 0.30 0.92 80.54 1.56 278.5 350 -42.2 42.2
KORD P 82.40 0.30 0.92 80.96 1.44 282.0 336 -42.2 42.2
Velocity Ratios
AKUL DBYG TMBL NWAO
AKUL 1.68 0.00 0.00 0.00
0.09 0.00 0.00 0.00
DBYG 0.00 1.70 0.00 0.00
0.00 0.09 0.00 0.00
TMBL 0.00 0.00 1.71 0.00
0.00 0.00 0.05 0.00
NWAO 0.00 0.00 0.00 1.71
0.00 0.00 0.00 0.06
Date 2021-10-31
Origin Time 1939 35.22 +- 0.96
Zone 50
Easting 559.54 +- 8.27 Longitude 117.641
Northing 6298.76 +- 8.15 Latitude -33.449
Depth 2.00 +- 25.44 N
Arrival times = 8 S.D. = 0.161 Seismographs = 5
Nearest recorder = 9.1 km Gap = 121.6 deg Accuracy = C
Effects Code = Imax = 0 Fault =
1 km W (257 deg) of WDN1
WESTERN AUSTRALIA
236 km SE (135 deg) of PERTH
173 km N (353 deg) of ALBANY
17 km SW (210 deg) of Dumbleyung
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
DBYG i P 36.66 0.05 1.73 36.74 -0.08 9.1 71 14.2 14.2
DBYG i S 37.88 0.40 1.03 37.80 0.08 9.1 71 14.2 14.2
NWAO P 46.35 0.10 1.30 46.52 -0.17 69.2 326 1.9 1.9
NWAO S 54.36 1.00 0.74 54.36 0.00 69.2 326 1.9 1.9
ONGR P 48.95 0.10 1.28 48.89 0.06 83.8 123 1.6 1.6
ONGR S 58.20 1.00 0.73 58.37 -0.17 83.8 123 1.6 1.6
RKGY P 58.30 0.30 0.98 58.21 0.09 142.5 205 -30.8 30.8
COR2 P 59.80 0.20 1.06 59.48 0.32 151.5 4 -30.8 30.8
8 times used, S = 0.161
Deferred Data
AKUL P 50.20 0.20 1.10 51.32 -1.12 98.7 28 1.4 1.4
AKUL S 61.60 1.00 0.72 62.49 -0.89 98.7 28 1.4 1.4
RKGY S 76.00 1.00 0.69 74.59 1.41 142.5 205 0.9 0.9
COR2 S 77.30 1.00 0.69 77.08 0.22 151.5 4 0.9 0.9
KLBR P 67.10 0.20 1.03 66.60 0.50 206.2 2 -42.2 42.2
Velocity Ratios
DBYG NWAO ONGR
DBYG 1.85 1.70 1.65
0.35 0.17 0.14
NWAO 1.70 1.72 0.00
0.17 0.11 0.00
ONGR 1.65 0.00 1.67
0.14 0.00 0.09