Data Report
Bulletin / 2021-06
Contributed by CUPWA
Date 2021-06-06
Origin Time 1725 20.30 +- 1.26
Zone 50
Easting 504.92 +- 14.80 Longitude 117.052
Northing 6499.16 +- 8.10 Latitude -31.643
Depth 5.49 +- 21.86
Arrival times = 9 S.D. = 0.029 Seismographs = 6
Nearest recorder = 6.7 km Gap = 135.1 deg Accuracy = A
Effects Code = Imax = 0 Fault =
4 km E (106 deg) of MECK
WESTERN AUSTRALIA
119 km E ( 74 deg) of PERTH
4 km E (109 deg) of Meckering
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 i P 21.70 0.10 1.54 21.73 -0.03 6.7 190 40.5 40.5
MEKS S 22.76 0.20 1.21 22.72 0.04 6.7 190 40.5 40.5
MEKN S-P 1.00 2.00 0.84 1.00 -0.00 6.8 326 0.0 0.0
COR2 P 33.80 0.10 1.28 33.81 -0.01 82.7 126 4.0 4.0
KORD P 35.87 0.10 1.27 35.84 0.03 95.1 26 3.4 3.4
KORD S 46.60 1.00 0.72 46.61 -0.01 95.1 26 3.4 3.4
BLDU P 39.70 0.10 1.24 39.68 0.02 118.8 344 -30.8 30.8
BLDU S 53.10 1.00 0.71 53.16 -0.06 118.8 344 2.8 2.8
WATG S 61.40 0.20 0.95 61.40 -0.00 148.7 47 2.2 2.2
9 times used, S = 0.029
Deferred Data
PINW P 35.40 0.20 1.10 35.48 -0.08 92.9 182 3.4 3.4
NWAO P 42.50 0.20 1.06 43.11 -0.61 143.3 173 -30.8 30.8
NWAO S 59.60 1.00 0.69 59.93 -0.33 143.3 173 2.3 2.3
WATG P 44.30 0.20 1.06 43.85 0.45 148.7 47 -30.8 30.8
BCON P 46.20 0.20 1.05 45.45 0.75 160.0 25 -30.8 30.8
BCON S 64.60 1.00 0.69 64.38 0.22 160.0 25 -23.9 23.9
Velocity Ratios
MEKS KORD BLDU
MEKS 1.75 1.68 1.69
0.29 0.11 0.09
KORD 1.68 1.69 0.00
0.11 0.08 0.00
BLDU 1.69 0.00 1.69
0.09 0.00 0.06
Date 2021-06-07
Origin Time 0508 41.44 +- 2.42
Zone 50
Easting 501.35 +- 23.31 Longitude 117.014
Northing 6494.49 +- 16.20 Latitude -31.685
Depth 1.55 +- 91.86
Arrival times = 6 S.D. = 0.041 Seismographs = 6
Nearest recorder = 99.0 km Gap = 108.5 deg Accuracy = B
Effects Code = Imax = 0 Fault =
2 km NW (309 deg) of MEKS
WESTERN AUSTRALIA
114 km E ( 75 deg) of PERTH
6 km S (176 deg) of Meckering
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
AMAZ P 57.62 0.10 1.26 57.60 0.02 99.0 248 1.0 1.0
KORD P 57.93 0.10 1.26 57.91 0.02 100.9 27 0.9 0.9
BLDU P 61.36 0.10 1.24 61.42 -0.06 122.4 346 0.9 0.9
NWAO P 64.01 0.20 1.07 64.01 0.00 139.2 171 -30.8 30.8
AKUL S 83.70 1.00 0.69 83.74 -0.04 153.1 135 0.7 0.7
BCON S 87.30 1.00 0.68 87.24 0.06 165.8 25 0.6 0.6
6 times used, S = 0.041
Deferred Data
AMAZ S 68.84 1.00 0.72 68.79 0.05 99.0 248 1.0 1.0
KORD S 69.31 1.00 0.72 69.32 -0.01 100.9 27 0.9 0.9
BLDU S 74.84 1.00 0.70 75.26 -0.42 122.4 346 0.9 0.9
NWAO S 81.10 1.00 0.70 79.90 1.20 139.2 171 0.7 0.7
AKUL P 66.22 0.20 1.06 65.96 0.26 153.1 135 -30.8 30.8
WATG P 66.58 0.20 1.06 66.14 0.44 154.5 47 -30.8 30.8
WATG S 84.50 1.00 0.69 84.13 0.37 154.5 47 0.6 0.6
BCON P 68.14 0.20 1.05 67.74 0.40 165.8 25 -30.8 30.8
MORW P 85.30 0.20 0.99 84.79 0.51 304.7 341 -42.2 42.2
NO VELOCITY RATIOS
Date 2021-06-07
Origin Time 0508 41.79 +- 0.30
Zone 50
Easting 498.54 +- 2.79 Longitude 116.985
Northing 6497.28 +- 2.10 Latitude -31.660
Depth -0.27 +- 17.72
Arrival times = 9 S.D. = 0.083 Seismographs = 8
Nearest recorder = 3.8 km Gap = 113.7 deg Accuracy = A
Effects Code = Imax = 0 Fault =
3 km SW (214 deg) of MECK
WESTERN AUSTRALIA
112 km E ( 74 deg) of PERTH
4 km SW (216 deg) of Meckering
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
MECK S-P 0.43 0.01 2.52 0.43 0.00 3.8 34 0.0 0.0
MEKS P 42.96 0.02 2.12 42.92 0.04 6.9 132 -0.4 -0.4
MEKS S 43.75 0.30 1.11 43.70 0.05 6.9 132 -0.4 -0.4
COR2 P 55.86 0.10 1.28 55.95 -0.09 86.8 123 0.0 0.0
AMAZ P 57.62 0.10 1.26 57.69 -0.07 97.5 246 -0.1 -0.1
KORD P 57.93 0.10 1.26 58.07 -0.14 99.8 29 -0.1 -0.1
BLDU P 61.36 0.10 1.24 61.21 0.15 119.0 347 0.0 0.0
WATG P 66.58 0.20 1.06 66.67 -0.09 154.7 48 -30.8 30.8
BCON P 68.14 0.20 1.05 68.06 0.08 164.5 27 -30.8 30.8
9 times used, S = 0.083
Deferred Data
COR2 S 66.50 1.00 0.72 65.77 0.73 86.8 123 0.0 0.0
AMAZ S 68.84 1.00 0.72 68.71 0.13 97.5 246 -0.1 -0.1
KORD S 69.31 1.00 0.72 69.35 -0.04 99.8 29 -0.1 -0.1
BLDU S 74.84 1.00 0.71 74.67 0.17 119.0 347 0.0 0.0
NWAO P 64.01 0.20 1.06 64.95 -0.94 142.4 170 -30.8 30.8
NWAO S 81.10 1.00 0.69 81.12 -0.02 142.4 170 -0.0 -0.0
WATG S 84.50 1.00 0.69 84.53 -0.03 154.7 48 -0.1 -0.1
AKUL P 66.22 0.20 1.05 67.01 -0.79 157.1 135 -30.8 30.8
AKUL S 83.70 1.00 0.69 85.17 -1.47 157.1 135 0.0 0.0
BCON S 87.30 1.00 0.69 87.24 0.06 164.5 27 0.0 0.0
MORW P 85.30 0.20 0.99 84.90 0.40 301.2 342 -42.2 42.2
Velocity Ratios
MEKS
MEKS 1.68
0.29
Date 2021-06-07
Origin Time 0508 41.82 +- 2.75
Zone 50
Easting 499.81 +- 32.14 Longitude 116.998
Northing 6497.80 +- 5.98 Latitude -31.655
Depth 2.43 +- 11.57
Arrival times = 6 S.D. = 0.002 Seismographs = 5
Nearest recorder = 2.7 km Gap = 226.8 deg Accuracy = A
Effects Code = Imax = 0 Fault =
2 km S (198 deg) of MECK
WESTERN AUSTRALIA
114 km E ( 74 deg) of PERTH
3 km S (202 deg) of Meckering
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
MECK S-P 0.43 0.01 2.56 0.43 -0.00 2.7 18 0.0 0.0
MEKS P 42.96 0.02 2.13 42.96 -0.00 6.4 143 22.4 22.4
MEKS S 43.75 0.30 1.11 43.75 0.00 6.4 143 22.4 22.4
MEKN S-P 0.86 0.10 1.53 0.86 0.00 7.1 10 0.0 0.0
COR2 P 55.86 0.10 1.28 55.86 -0.00 86.0 124 1.8 1.8
KORD P 57.93 0.10 1.26 57.93 0.00 98.7 29 1.5 1.5
6 times used, S = 0.002
Deferred Data
MEKN P 45.20 5.00 0.70 43.06 2.14 7.1 10 20.5 20.5
COR2 S 66.50 1.00 0.72 65.60 0.90 86.0 124 1.8 1.8
KORD S 69.31 1.00 0.72 69.10 0.21 98.7 29 1.5 1.5
AMAZ P 57.62 0.10 1.26 57.95 -0.33 98.8 246 1.5 1.5
AMAZ S 68.84 1.00 0.72 69.13 -0.29 98.8 246 1.5 1.5
BLDU P 61.36 0.10 1.24 61.21 0.15 118.8 346 1.3 1.3
BLDU S 74.84 1.00 0.71 74.66 0.18 118.8 346 1.3 1.3
NWAO P 64.01 0.20 1.06 64.80 -0.79 142.7 171 -30.8 30.8
NWAO S 81.10 1.00 0.69 81.24 -0.14 142.7 171 1.1 1.1
WATG P 66.58 0.20 1.06 66.29 0.29 153.4 48 -30.8 30.8
WATG S 84.50 1.00 0.69 84.21 0.29 153.4 48 0.9 0.9
AKUL P 66.22 0.20 1.06 66.75 -0.53 156.5 136 -30.8 30.8
AKUL S 83.70 1.00 0.69 85.07 -1.37 156.5 136 1.0 1.0
BCON P 68.14 0.20 1.05 67.72 0.42 163.5 26 -30.8 30.8
BCON S 87.30 1.00 0.69 86.99 0.31 163.5 26 1.0 1.0
MORW P 85.30 0.20 0.99 84.63 0.67 301.1 342 -42.2 42.2
Velocity Ratios
MEKS
MEKS 1.70
0.30
Date 2021-06-07
Origin Time 0905 31.30 +- 0.52
Zone 50
Easting 562.66 +- 6.19 Longitude 117.658
Northing 6541.12 +- 3.39 Latitude -31.262
Depth 3.53 +- 11.97
Arrival times = 16 S.D. = 0.168 Seismographs = 12
Nearest recorder = 45.2 km Gap = 98.2 deg Accuracy = A
Effects Code = Imax = 0 Fault =
9 km E (107 deg) of WYAL
WESTERN AUSTRALIA
188 km NE ( 67 deg) of PERTH
41 km N (352 deg) of Kellerberrin
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
KORD P 38.70 0.05 1.55 38.70 -0.00 45.2 340 4.6 4.6
KORD S 44.00 1.00 0.76 43.83 0.17 45.2 340 4.6 4.6
MEKN S-P 8.10 2.00 0.71 8.09 0.01 71.5 238 0.0 0.0
MEKS e P 44.15 0.20 0.79 43.78 0.37 76.4 230 2.8 2.8
WATG P 43.98 0.10 1.29 44.07 -0.09 78.2 41 2.7 2.7
WATG S 52.82 1.00 0.73 52.93 -0.11 78.2 41 2.7 2.7
COR2 P 46.15 0.10 1.27 46.28 -0.13 91.7 174 2.4 2.4
COR2 S 56.70 0.50 0.83 56.66 0.04 91.7 174 2.4 2.4
BCON P 48.23 0.10 1.26 48.15 0.08 103.2 5 2.1 2.1
BLDU P 50.10 0.10 1.24 50.21 -0.11 115.8 308 1.9 1.9
PINW P 55.02 0.10 1.22 55.00 0.02 148.6 204 -30.8 30.8
PINW S 72.40 1.00 0.69 72.36 0.04 148.6 204 1.4 1.4
HYDN P 58.95 0.20 1.05 58.60 0.35 174.3 139 -30.8 30.8
AMAZ P 58.56 0.20 1.05 58.62 -0.06 174.4 241 -30.8 30.8
NWAO P 60.05 0.30 0.96 60.41 -0.36 188.8 192 -42.2 42.2
MORW P 72.60 0.30 0.92 72.51 0.09 288.8 327 -42.2 42.2
16 times used, S = 0.168
Deferred Data
MEKN P 46.15 0.20 1.13 42.98 3.17 71.5 238 3.0 3.0
MEKN S 54.20 1.00 0.74 51.07 3.13 71.5 238 3.0 3.0
MECK S-P 9.20 2.00 0.71 8.40 0.80 74.1 236 0.0 0.0
MEKS S 53.00 0.50 0.84 52.43 0.57 76.4 230 2.8 2.8
BCON S 60.30 1.00 0.71 59.83 0.47 103.2 5 2.1 2.1
BLDU S 63.40 1.00 0.71 63.32 0.08 115.8 308 1.9 1.9
AKUL P 55.98 0.20 1.05 57.03 -1.05 162.9 163 -30.8 30.8
HYDN S 79.05 1.00 0.68 79.05 -0.00 174.3 139 -40.3 40.3
ONGR P 74.50 0.30 0.92 73.45 1.05 296.6 166 -42.2 42.2
KMBL P 86.02 0.30 0.89 86.36 -0.34 403.3 92 -42.2 42.2
Velocity Ratios
KORD WATG COR2 PINW
KORD 1.72 0.00 0.00 1.74
0.15 0.00 0.00 0.14
WATG 0.00 1.70 0.00 0.00
0.00 0.09 0.00 0.00
COR2 0.00 0.00 1.71 0.00
0.00 0.00 0.05 0.00
PINW 1.74 0.00 0.00 1.73
0.14 0.00 0.00 0.05
Date 2021-06-08
Origin Time 1350 47.22 +- 0.58
Zone 50
Easting 500.03 +- 6.35 Longitude 117.000
Northing 6497.83 +- 4.01 Latitude -31.655
Depth 1.39 +- 16.64
Arrival times = 10 S.D. = 0.076 Seismographs = 7
Nearest recorder = 2.6 km Gap = 100.9 deg Accuracy = B
Effects Code = Imax = 0 Fault =
2 km S (194 deg) of MECK
WESTERN AUSTRALIA
114 km E ( 74 deg) of PERTH
3 km S (199 deg) of Meckering
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
MECK S-P 0.38 0.50 1.17 0.35 0.03 2.6 14 0.0 0.0
MEKS i P 48.25 0.02 2.13 48.29 -0.04 6.4 145 14.2 14.2
MEKS i S 49.15 0.30 1.11 49.03 0.12 6.4 145 14.2 14.2
COR2 P 61.15 0.10 1.28 61.23 -0.08 85.9 124 1.1 1.1
COR2 S 71.00 1.00 0.72 70.95 0.05 85.9 124 1.1 1.1
KORD P 63.29 0.10 1.26 63.30 -0.01 98.6 29 0.9 0.9
KORD S 74.60 1.00 0.72 74.45 0.15 98.6 29 0.9 0.9
AMAZ P 63.44 0.10 1.26 63.38 0.06 99.1 246 0.9 0.9
BLDU P 66.50 0.20 1.08 66.61 -0.11 118.8 346 0.8 0.8
WATG P 71.80 0.10 1.21 71.75 0.05 153.2 48 -30.8 30.8
10 times used, S = 0.076
Deferred Data
MEKN S-P 1.00 5.00 0.47 0.82 0.18 7.0 8 0.0 0.0
BLDU S 79.60 1.00 0.71 80.05 -0.45 118.8 346 0.8 0.8
NWAO P 69.35 0.10 1.22 70.29 -0.94 142.7 171 -30.8 30.8
NWAO S 86.70 1.00 0.69 86.64 0.06 142.7 171 0.7 0.7
WATG S 89.40 1.00 0.69 89.55 -0.15 153.2 48 0.6 0.6
AKUL P 71.42 0.20 1.06 72.22 -0.80 156.4 136 -30.8 30.8
AKUL S 89.70 1.00 0.69 90.43 -0.73 156.4 136 0.6 0.6
BCON P 73.47 0.20 1.05 73.19 0.28 163.4 26 -30.8 30.8
BCON S 91.20 1.00 0.69 92.35 -1.15 163.4 26 0.6 0.6
Velocity Ratios
MEKS COR2 KORD
MEKS 1.87 1.69 1.69
0.33 0.12 0.10
COR2 1.69 1.71 0.00
0.12 0.08 0.00
KORD 1.69 0.00 1.70
0.10 0.00 0.07
Date 2021-06-10
Origin Time 1822 40.99 +- 14.03
Zone 50
Easting 499.23 +- 158.45 Longitude 116.992
Northing 6497.59 +- 35.52 Latitude -31.657
Depth 3.09 +- 81.60
Arrival times = 5 S.D. = 0.025 Seismographs = 4
Nearest recorder = 6.7 km Gap = 236.0 deg Accuracy = B
Effects Code = Imax = 0 Fault =
3 km SW (207 deg) of MECK
WESTERN AUSTRALIA
113 km E ( 74 deg) of PERTH
3 km SW (210 deg) of Meckering
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
MEKS i P 42.21 0.05 1.77 42.20 0.01 6.7 138 26.5 26.5
MEKS S 43.00 0.30 1.11 43.04 -0.04 6.7 138 26.5 26.5
MEKN S-P 0.94 0.10 1.53 0.92 0.02 7.4 14 0.0 0.0
COR2 P 55.11 0.10 1.28 55.10 0.01 86.4 123 2.2 2.2
KORD P 57.15 0.10 1.26 57.18 -0.03 99.2 29 1.8 1.8
5 times used, S = 0.025
Deferred Data
MEKN P 45.30 2.00 0.62 42.32 2.98 7.4 14 24.1 24.1
COR2 S 66.49 0.50 0.83 64.88 1.61 86.4 123 2.2 2.2
PINW P 56.89 0.20 1.11 55.88 1.01 91.2 179 2.0 2.0
PINW S 66.50 1.00 0.72 66.20 0.30 91.2 179 2.0 2.0
AMAZ P 56.92 0.20 1.10 57.02 -0.10 98.2 246 1.9 1.9
KORD S 68.63 1.00 0.72 68.40 0.23 99.2 29 1.8 1.8
BLDU P 60.65 0.20 1.08 60.39 0.26 118.9 346 1.7 1.7
BLDU S 74.00 1.00 0.71 73.85 0.15 118.9 346 1.7 1.7
NWAO P 63.36 0.20 1.06 63.90 -0.54 142.6 170 -30.8 30.8
NWAO S 80.10 1.00 0.69 80.38 -0.28 142.6 170 1.3 1.3
WATG PG 65.90 0.20 0.99 66.12 -0.22 154.0 48 1.2 1.2
WATG S 83.40 1.00 0.69 83.54 -0.14 154.0 48 1.2 1.2
AKUL P 64.80 0.20 1.05 65.90 -1.10 156.8 136 -30.8 30.8
AKUL S 83.20 1.00 0.69 84.31 -1.11 156.8 136 1.3 1.3
MORW P 84.10 0.30 0.92 83.73 0.37 301.1 342 -42.2 42.2
Velocity Ratios
MEKS
MEKS 1.65
0.33
Date 2021-06-28
Origin Time 2305 1.68 +- 1.82
Zone 50
Easting 522.22 +- 16.14 Longitude 117.234
Northing 6526.39 +- 12.04 Latitude -31.397
Depth 4.36 +- 55.59
Arrival times = 10 S.D. = 0.032 Seismographs = 6
Nearest recorder = 38.6 km Gap = 121.5 deg Accuracy = B
Effects Code = Imax = 0 Fault =
16 km SW (225 deg) of WYAX
WESTERN AUSTRALIA
145 km NE ( 65 deg) of PERTH
28 km N ( 1 deg) of Cunderdin
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
MEKS P 8.03 5.00 0.62 8.02 0.01 38.6 208 6.8 6.8
MEKS S 12.43 0.50 0.89 12.41 0.02 38.6 208 6.8 6.8
KLBR P 10.47 0.10 1.33 10.52 -0.05 54.0 113 5.0 5.0
KLBR S 16.70 1.00 0.75 16.65 0.05 54.0 113 5.0 5.0
KORD P 12.00 0.10 1.31 12.00 0.00 63.1 23 4.0 4.0
KORD S 19.14 1.00 0.74 19.15 -0.01 63.1 23 4.0 4.0
BLDU P 18.06 0.10 1.26 18.07 -0.01 100.4 330 2.7 2.7
BLDU S 29.44 1.00 0.72 29.44 0.00 100.4 330 2.7 2.7
WATG P 20.97 0.20 1.08 20.93 0.04 117.9 51 2.2 2.2
PINW P 21.60 0.10 1.24 21.60 0.00 122.0 190 -30.8 30.8
10 times used, S = 0.032
Deferred Data
COR2 P 17.20 0.10 1.27 16.53 0.67 90.9 147 2.9 2.9
COR2 S 27.70 1.00 0.72 26.83 0.87 90.9 147 2.9 2.9
WATG S 34.90 1.00 0.71 34.27 0.63 117.9 51 2.2 2.2
Velocity Ratios
MEKS KLBR KORD BLDU
MEKS 1.69 0.00 0.00 0.00
6.65 0.00 0.00 0.00
KLBR 0.00 1.71 0.00 0.00
0.00 0.13 0.00 0.00
KORD 0.00 0.00 1.69 0.00
0.00 0.00 0.11 0.00
BLDU 0.00 0.00 0.00 1.69
0.00 0.00 0.00 0.07