Data Report
Bulletin / 2020-04
Contributed by CUPWA
Date 2020-04-12
Origin Time 1909 47.66 +- 5.56
Zone 50
Easting 662.72 +- 25.26 Longitude 118.749
Northing 6304.60 +- 14.09 Latitude -33.385
Depth 2.00 +- 44.05 N
Arrival times = 7 S.D. = 0.321 Seismographs = 5
Nearest recorder = 97.0 km Gap = 228.5 deg Accuracy = C
Effects Code = Imax = 0 Fault =
19 km NE ( 40 deg) of PIN
WESTERN AUSTRALIA
315 km SE (121 deg) of PERTH
197 km NE ( 25 deg) of ALBANY
41 km SE (141 deg) of Lake Grace
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 2.4
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
AKUL P 63.10 0.10 1.26 63.49 -0.39 97.0 324 1.4 1.4
AKUL S 74.90 0.50 0.82 74.46 0.44 97.0 324 1.4 1.4
NWAO P 71.53 0.10 1.22 71.74 -0.21 150.3 289 -30.8 30.8
NWAO S 89.30 1.00 0.69 89.18 0.12 150.3 289 0.9 0.9
AALB P 77.70 0.30 0.95 77.68 0.02 195.2 203 -42.2 42.2
RKGY P 80.00 0.20 1.03 79.82 0.18 212.6 229 -42.2 42.2
KLBR P 81.05 0.20 1.02 80.69 0.36 219.8 334 -42.2 42.2
7 times used, S = 0.321
Deferred Data
AALB S 100.50 1.00 0.67 100.08 0.42 195.2 203 -40.3 40.3
RKGY S 104.90 1.00 0.67 103.80 1.10 212.6 229 -40.3 40.3
KLBR S 106.80 1.00 0.67 105.31 1.49 219.8 334 -40.3 40.3
MEKS w P 87.10 5.00 0.38 83.88 3.22 246.3 318 -42.2 42.2
MEKS w S 112.10 2.00 0.41 110.87 1.23 246.3 318 -40.3 40.3
MUN P 89.16 0.30 0.92 88.54 0.62 284.8 302 -42.2 42.2
BLDU P 98.60 0.30 0.90 97.99 0.61 362.9 327 -42.2 42.2
Velocity Ratios
AKUL NWAO
AKUL 1.76 0.00
0.04 0.00
NWAO 0.00 1.74
0.00 0.05
Date 2020-04-25
Origin Time 1703 38.26 +- 109.64
Zone 50
Easting 751.81 +- 106.18 Longitude 119.677
Northing 6412.34 +- 303.06 Latitude -32.397
Depth 2.00 +-1076.65 N
Arrival times = 5 S.D. = 0.358 Seismographs = 5
Nearest recorder = 146.4 km Gap = 193.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
76 km E ( 85 deg) of HYDN
WESTERN AUSTRALIA
364 km E ( 99 deg) of PERTH
199 km W (263 deg) of NORSEMAN
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign M 2.6
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
AKUL P 61.42 0.10 1.22 61.81 -0.39 146.4 257 -30.8 30.8
KLBR P 69.34 0.10 1.18 69.19 0.15 202.4 295 -42.2 42.2
NWAO P 73.80 0.10 1.17 73.32 0.48 236.6 254 -42.2 42.2
KMBL P 73.53 0.20 1.02 73.59 -0.06 238.8 61 -42.2 42.2
MUN P 84.40 0.20 0.98 84.65 -0.25 330.3 277 -42.2 42.2
5 times used, S = 0.358
Deferred Data
NWAO S 102.04 1.00 0.66 99.44 2.60 236.6 254 -40.3 40.3
KMBL S 99.50 1.00 0.66 99.92 -0.42 238.8 61 -40.3 40.3
RKGY P 88.65 0.30 0.90 87.13 1.52 350.8 224 -42.2 42.2
MORW P 105.60 0.30 0.87 106.06 -0.46 507.4 315 -42.2 42.2
FORT P 144.20 0.30 0.83 143.76 0.44 819.3 79 -42.2 42.2
NO VELOCITY RATIOS
Date 2020-04-28
Origin Time 1843 19.15 +- 3.04
Zone 50
Easting 649.58 +- 22.10 Longitude 118.605
Northing 6322.44 +- 8.57 Latitude -33.226
Depth 4.35 +- 14.44
Arrival times = 9 S.D. = 0.223 Seismographs = 5
Nearest recorder = 74.8 km Gap = 238.7 deg Accuracy = B
Effects Code = Imax = 0 Fault =
19 km SE (134 deg) of LKGR
WESTERN AUSTRALIA
295 km SE (119 deg) of PERTH
208 km N ( 19 deg) of ALBANY
19 km SE (138 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 2.1
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
AKUL i P 31.23 0.10 1.29 31.38 -0.15 74.8 325 3.6 3.6
AKUL S 40.10 1.00 0.73 39.86 0.24 74.8 325 3.6 3.6
GNOT P 35.00 0.20 1.10 34.90 0.10 96.5 214 2.8 2.8
GNOT S 46.00 1.00 0.72 45.83 0.17 96.5 214 2.8 2.8
NWAO P 40.15 0.20 1.07 40.52 -0.37 132.3 284 -30.8 30.8
NWAO S 55.90 1.00 0.70 55.72 0.18 132.3 284 2.0 2.0
KLBR P 49.46 0.20 1.03 49.30 0.16 198.1 336 -42.2 42.2
KLBR S 71.65 1.00 0.67 71.82 -0.17 198.1 336 -40.3 40.3
MUN P 57.45 0.30 0.93 57.27 0.18 264.1 301 -42.2 42.2
9 times used, S = 0.223
Deferred Data
RKGY P 52.36 0.30 0.95 51.32 1.04 214.9 223 -42.2 42.2
RKGY S 76.90 1.00 0.67 75.33 1.57 214.9 223 -40.3 40.3
MEKS P 45.50 1.00 0.59 52.44 -6.94 224.2 318 -42.2 42.2
MEKS S 80.50 1.00 0.53 77.28 3.22 224.2 318 -40.3 40.3
BLDU P 68.10 0.30 0.91 66.55 1.55 340.8 327 -42.2 42.2
Velocity Ratios
AKUL GNOT NWAO KLBR
AKUL 1.73 0.00 0.00 1.73
0.10 0.00 0.00 0.14
GNOT 0.00 1.69 0.00 1.77
0.00 0.09 0.00 0.19
NWAO 0.00 0.00 1.75 0.00
0.00 0.00 0.06 0.00
KLBR 1.73 1.77 0.00 1.73
0.14 0.19 0.00 0.04
Date 2020-04-29
Origin Time 0004 44.73 +- 0.62
Zone 50
Easting 559.55 +- 8.14 Longitude 117.624
Northing 6558.68 +- 3.52 Latitude -31.104
Depth 4.62 +- 11.99
Arrival times = 11 S.D. = 0.113 Seismographs = 7
Nearest recorder = 33.7 km Gap = 188.0 deg Accuracy = B
Effects Code = Imax = 0 Fault =
15 km N ( 22 deg) of WYAL
WESTERN AUSTRALIA
193 km NE ( 61 deg) of PERTH
33 km SE (156 deg) of Koorda
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
KOO6 P 50.35 0.10 1.38 50.28 0.07 33.7 336 8.3 8.3
KOO6 S 54.25 0.50 0.90 54.13 0.12 33.7 336 8.3 8.3
KLBR P 53.82 0.10 1.32 53.81 0.01 55.4 167 5.1 5.1
KLBR S 60.04 1.00 0.75 60.11 -0.07 55.4 167 5.1 5.1
MEKS P 58.80 0.10 1.28 58.88 -0.08 86.6 219 3.2 3.2
MEKS S 68.90 0.50 0.83 68.68 0.22 86.6 219 3.2 3.2
BLDU P 61.40 0.20 1.09 61.58 -0.18 103.1 301 2.8 2.8
BLDU S 73.10 1.00 0.71 73.25 -0.15 103.1 301 2.8 2.8
MUN P 70.82 0.20 1.05 70.76 0.06 165.7 233 -30.8 30.8
AKUL P 72.65 0.20 1.04 72.74 -0.09 180.6 164 -42.2 42.2
NWAO P 75.82 0.30 0.95 75.72 0.10 205.4 190 -42.2 42.2
11 times used, S = 0.113
Deferred Data
MUN S 89.50 1.00 0.69 90.35 -0.85 165.7 233 -23.9 23.9
NWAO S 98.80 1.00 0.67 98.87 -0.07 205.4 190 -40.3 40.3
MEEK P 113.20 0.50 0.79 111.89 1.31 504.2 11 -42.2 42.2
Velocity Ratios
KOO6 KLBR MEKS BLDU
KOO6 1.69 0.00 1.73 1.71
0.12 0.00 0.16 0.19
KLBR 0.00 1.68 0.00 0.00
0.00 0.13 0.00 0.00
MEKS 1.73 0.00 1.72 0.00
0.16 0.00 0.05 0.00
BLDU 1.71 0.00 0.00 1.70
0.19 0.00 0.00 0.08
Date 2020-04-29
Origin Time 1501 39.34 +- 0.54
Zone 50
Easting 556.88 +- 9.95 Longitude 117.596
Northing 6557.31 +- 4.57 Latitude -31.117
Depth 2.84 +- 8.38
Arrival times = 9 S.D. = 0.085 Seismographs = 8
Nearest recorder = 34.0 km Gap = 182.0 deg Accuracy = A
Effects Code = Imax = 0 Fault =
13 km N ( 14 deg) of WYAL
WESTERN AUSTRALIA
190 km NE ( 61 deg) of PERTH
34 km S (161 deg) of Koorda
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
KOO6 P 44.92 0.05 1.58 44.90 0.02 34.0 341 5.3 5.3
KLBR P 48.34 0.10 1.32 48.28 0.06 54.7 164 3.3 3.3
KLBR S 54.50 1.00 0.75 54.49 0.01 54.7 164 3.3 3.3
BLDU P 55.80 0.10 1.26 55.92 -0.12 101.6 303 1.8 1.8
MOO1 P 64.97 0.10 1.21 64.87 0.10 161.1 289 -30.8 30.8
MUN P 65.10 0.20 1.05 65.09 0.01 162.7 233 -30.8 30.8
AKUL P 67.30 0.30 0.96 67.47 -0.17 180.0 163 -42.2 42.2
NWAO P 70.30 0.20 1.03 70.30 -0.00 203.5 189 -42.2 42.2
MORW P 78.64 0.20 1.00 78.60 0.04 272.1 326 -42.2 42.2
9 times used, S = 0.085
Deferred Data
KOO6 S 47.70 0.30 0.99 48.76 -1.06 34.0 341 5.3 5.3
MEKS P 53.60 0.20 1.11 53.02 0.58 83.8 218 2.1 2.1
BLDU S 67.80 1.00 0.71 67.42 0.38 101.6 303 1.8 1.8
MOO1 S 85.10 1.00 0.69 83.85 1.25 161.1 289 1.1 1.1
MUN S 84.10 1.00 0.69 84.30 -0.20 162.7 233 1.1 1.1
AKUL S 88.50 1.00 0.68 88.47 0.03 180.0 163 -40.3 40.3
NWAO S 93.20 1.00 0.67 93.41 -0.21 203.5 189 -40.3 40.3
Velocity Ratios
KLBR
KLBR 1.68
0.13