Data Report
Bulletin / 2021-09
Contributed by CUPWA
Date 2021-09-05
Origin Time 0850 52.76 +- 0.54
Zone 50
Easting 523.74 +- 2.45 Longitude 117.249
Northing 6577.40 +- 2.91 Latitude -30.937
Depth 5.06 +- 26.23
Arrival times = 11 S.D. = 0.142 Seismographs = 8
Nearest recorder = 21.5 km Gap = 93.0 deg Accuracy = A
Effects Code = Imax = 0 Fault =
17 km SE (141 deg) of CAS
WESTERN AUSTRALIA
174 km NE ( 50 deg) of PERTH
17 km SE (124 deg) of Manmanning
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
CADX i P 56.39 0.05 1.63 56.37 0.02 21.5 329 14.0 14.0
CADX S 58.96 0.30 1.03 58.87 0.09 21.5 329 14.0 14.0
KORD i P 56.74 0.05 1.62 56.95 -0.21 25.2 74 11.6 11.6
KORD S 60.01 0.50 0.92 59.86 0.15 25.2 74 11.6 11.6
BLDU P 62.95 0.10 1.31 63.06 -0.11 62.9 304 4.9 4.9
BCON P 66.49 0.10 1.28 66.32 0.17 82.9 36 3.7 3.7
KLBR P 66.92 0.10 1.28 67.00 -0.08 87.1 146 3.5 3.5
MEKS P 67.19 0.10 1.28 67.00 0.19 87.1 193 3.5 3.5
MEKS S 76.90 1.00 0.72 76.88 0.02 87.1 193 3.5 3.5
WATG P 68.13 0.10 1.27 68.05 0.08 93.6 76 3.2 3.2
WLBG P 68.73 0.10 1.26 68.82 -0.09 98.3 286 3.0 3.0
11 times used, S = 0.142
Deferred Data
BCON S 76.20 0.50 0.84 75.72 0.48 82.9 36 3.7 3.7
KLBR S 77.10 1.00 0.72 76.87 0.23 87.1 146 3.5 3.5
WATG S 79.20 1.00 0.72 78.66 0.54 93.6 76 3.2 3.2
WLBG S 80.10 1.00 0.72 79.96 0.14 98.3 286 3.0 3.0
Velocity Ratios
CADX KORD MEKS
CADX 1.71 0.00 1.66
0.11 0.00 0.15
KORD 0.00 1.82 1.62
0.00 0.15 0.17
MEKS 1.66 1.62 1.67
0.15 0.17 0.08
Date 2021-09-16
Origin Time 2138 47.59 +- 0.70
Zone 50
Easting 523.22 +- 4.93 Longitude 117.246
Northing 6463.50 +- 4.31 Latitude -31.964
Depth 4.32 +- 23.62
Arrival times = 9 S.D. = 0.118 Seismographs = 7
Nearest recorder = 35.1 km Gap = 88.2 deg Accuracy = B
Effects Code = Imax = 0 Fault =
3 km NW (318 deg) of QUW
WESTERN AUSTRALIA
132 km E ( 91 deg) of PERTH
34 km NE ( 60 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 53.50 0.10 1.37 53.36 0.14 35.1 326 7.4 7.4
MEKS S 57.25 1.00 0.78 57.36 -0.11 35.1 326 7.4 7.4
COR2 P 55.65 0.10 1.33 55.77 -0.12 49.9 105 5.3 5.3
KLBR P 58.00 0.10 1.31 57.97 0.03 63.5 49 4.2 4.2
KLBR S 65.10 1.00 0.74 65.16 -0.06 63.5 49 4.2 4.2
MUN P 63.40 0.20 1.10 63.60 -0.20 98.0 268 2.7 2.7
NWAO P 65.10 0.10 1.25 65.01 0.09 106.7 180 2.5 2.5
AKUL P 66.55 0.20 1.08 66.49 0.06 115.8 132 2.3 2.3
KORD P 67.63 0.20 1.08 67.63 -0.00 122.9 11 -30.8 30.8
9 times used, S = 0.118
Deferred Data
COR2 S 62.40 1.00 0.76 61.44 0.96 49.9 105 5.3 5.3
MUN S 74.80 1.00 0.72 74.70 0.10 98.0 268 2.7 2.7
NWAO S 77.70 1.00 0.71 77.09 0.61 106.7 180 2.5 2.5
WATG P 73.90 0.20 1.05 73.36 0.54 163.9 33 -30.8 30.8
WATG S 93.10 1.00 0.69 92.75 0.35 163.9 33 -23.9 23.9
Velocity Ratios
MEKS KLBR
MEKS 1.63 0.00
0.20 0.00
KLBR 0.00 1.68
0.00 0.11
Date 2021-09-23
Origin Time 1034 42.41 +- 4.51
Zone 50
Easting 695.47 +- 37.74 Longitude 119.098
Northing 6319.28 +- 12.47 Latitude -33.248
Depth 2.00 +- 25.15 N
Arrival times = 8 S.D. = 0.519 Seismographs = 7
Nearest recorder = 91.2 km Gap = 237.1 deg Accuracy = C
Effects Code = Imax = 0 Fault =
54 km NE ( 56 deg) of PIN
WESTERN AUSTRALIA
337 km SE (116 deg) of PERTH
225 km NE ( 31 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 2.7
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
HYDN P 57.05 0.10 1.27 57.29 -0.24 91.2 346 1.3 1.3
HYDN S 68.10 1.00 0.72 67.61 0.49 91.2 346 1.3 1.3
ONGR P 57.70 0.10 1.27 57.82 -0.12 94.5 223 1.4 1.4
AKUL P 59.40 0.10 1.25 60.22 -0.82 109.2 305 1.2 1.2
NWAO P 71.05 0.20 1.04 70.32 0.73 177.7 281 -30.8 30.8
PINW PG 77.60 0.20 1.03 77.30 0.30 213.9 292 0.6 0.6
KLBR P 76.25 0.20 1.02 75.81 0.44 222.9 325 -42.2 42.2
KORD P 85.50 0.20 0.99 85.46 0.04 302.9 329 -42.2 42.2
8 times used, S = 0.519
Deferred Data
AKUL S 73.40 1.00 0.71 72.58 0.82 109.2 305 1.2 1.2
NWAO S 92.80 1.00 0.68 91.18 1.62 177.7 281 -40.3 40.3
COR2 P 71.35 0.10 1.20 70.64 0.71 180.2 315 -42.2 42.2
COR2 S 94.00 1.00 0.68 91.72 2.28 180.2 315 -40.3 40.3
PINW SG 104.20 1.00 0.67 101.50 2.70 213.9 292 0.6 0.6
KLBR S 102.40 1.00 0.67 100.71 1.69 222.9 325 -40.3 40.3
AALB S 103.00 2.00 0.58 100.74 2.26 223.3 209 -40.3 40.3
RKGY P 80.53 0.20 1.01 78.78 1.75 247.5 231 -42.2 42.2
RKGY S 108.70 1.00 0.66 105.88 2.82 247.5 231 -40.3 40.3
MEKS PG 83.55 0.30 0.83 84.58 -1.03 258.5 311 0.5 0.5
MEKS SG 115.00 1.00 0.52 113.83 1.17 258.5 311 0.5 0.5
Velocity Ratios
HYDN
HYDN 1.75
0.08