Data Report
Bulletin / 2021-04
Contributed by CUPWA
Date 2021-04-09
Origin Time 1549 42.71 +- 3.63
Zone 50
Easting 502.79 +- 13.44 Longitude 117.029
Northing 6619.58 +- 68.90 Latitude -30.556
Depth 0.23 +- 55.96
Arrival times = 6 S.D. = 0.159 Seismographs = 5
Nearest recorder = 31.3 km Gap = 201.6 deg Accuracy = C
Effects Code = Imax = 0 Fault =
5 km SE (142 deg) of BK1
WESTERN AUSTRALIA
191 km NE ( 36 deg) of PERTH
14 km W (253 deg) of Burakin
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
BLDU P 47.63 0.10 1.38 47.82 -0.19 31.3 258 1.0 1.0
BLDU S 51.32 1.00 0.79 51.36 -0.04 31.3 258 1.0 1.0
KORD P 52.13 0.10 1.32 52.12 0.01 57.7 128 0.3 0.3
WLBG P 55.17 0.10 1.29 54.94 0.24 74.9 258 0.3 0.3
WATG P 61.25 0.20 1.09 61.27 -0.02 113.7 100 0.2 0.2
NWAO P 81.20 0.20 1.01 81.21 -0.01 263.5 175 -42.2 42.2
6 times used, S = 0.159
Deferred Data
KORD S 58.90 1.00 0.75 58.64 0.26 57.7 128 0.3 0.3
WLBG S 63.72 1.00 0.73 63.41 0.31 74.9 258 0.3 0.3
WATG S 74.40 1.00 0.71 74.13 0.27 113.7 100 0.2 0.2
MORW P 72.56 0.20 1.04 72.41 0.15 190.6 329 -42.2 42.2
MORW S 93.90 1.00 0.68 94.53 -0.63 190.6 329 -40.3 40.3
MEEK P 106.30 0.30 0.88 105.12 1.18 460.9 19 -42.2 42.2
Velocity Ratios
BLDU
BLDU 1.75
0.24
Date 2021-04-18
Origin Time 1100 14.26 +- 1.28
Zone 50
Easting 524.02 +- 4.28 Longitude 117.251
Northing 6574.98 +- 12.19 Latitude -30.958
Depth -0.82 +- 21.54
Arrival times = 10 S.D. = 0.112 Seismographs = 7
Nearest recorder = 23.7 km Gap = 212.7 deg Accuracy = B
Effects Code = Imax = 0 Fault =
20 km SE (145 deg) of CAS
WESTERN AUSTRALIA
173 km NE ( 51 deg) of PERTH
19 km SE (130 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 2.7
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
CADX P 18.12 0.05 1.62 18.13 -0.01 23.7 332 -1.3 -1.3
CADX S 20.75 0.50 0.92 20.81 -0.06 23.7 332 -1.3 -1.3
KORD P 18.27 0.10 1.40 18.45 -0.18 25.7 69 -1.6 -1.6
KORD S 21.50 1.00 0.80 21.35 0.15 25.7 69 -1.6 -1.6
BLDU P 24.70 0.10 1.31 24.79 -0.09 64.5 306 -0.4 -0.4
BLDU S 32.10 1.00 0.74 32.09 0.01 64.5 306 -0.4 -0.4
BCON P 28.20 0.10 1.28 28.08 0.12 84.7 35 -0.3 -0.3
WATG P 29.66 0.20 1.10 29.59 0.07 94.0 74 -0.4 -0.4
WLBG P 30.57 0.10 1.26 30.46 0.11 99.3 287 -0.4 -0.4
MORW P 50.03 0.30 0.94 50.02 0.01 239.9 330 -42.2 42.2
10 times used, S = 0.112
Deferred Data
KOO6 S-P 5.00 5.00 0.64 2.99 2.01 26.4 56 0.0 0.0
BCON S 32.10 1.00 0.73 37.66 -5.56 84.7 35 -0.3 -0.3
WATG S 40.45 1.00 0.72 40.21 0.24 94.0 74 -0.4 -0.4
WLBG S 42.30 1.00 0.72 41.69 0.61 99.3 287 -0.4 -0.4
QUA P 33.63 0.10 1.24 33.10 0.53 115.5 179 -0.3 -0.3
QUA S 46.85 1.00 0.71 46.17 0.68 115.5 179 -0.3 -0.3
COR2 P 36.82 0.10 1.23 36.08 0.74 133.8 159 -0.2 -0.2
COR2 S 52.10 1.00 0.70 51.21 0.89 133.8 159 -0.2 -0.2
MORW S 76.60 1.00 0.66 76.63 -0.03 239.9 330 -40.3 40.3
Velocity Ratios
CADX KORD BLDU
CADX 1.68 0.00 0.00
0.15 0.00 0.00
KORD 0.00 1.81 0.00
0.00 0.30 0.00
BLDU 0.00 0.00 1.71
0.00 0.00 0.11