Data Report
Bulletin / 2018-04
Contributed by CUPWA
Date 2018-04-01
Origin Time 1456 57.76 +- 6.22
Zone 50
Easting 605.01 +- 41.17 Longitude 118.121
Northing 6371.19 +- 36.38 Latitude -32.792
Depth 3.07 +- 43.82
Arrival times = 6 S.D. = 0.042 Seismographs = 3
Nearest recorder = 13.8 km Gap = 246.8 deg Accuracy = B
Effects Code = Imax = 0 Fault =
13 km S (192 deg) of KULI
WESTERN AUSTRALIA
246 km N ( 5 deg) of ALBANY
233 km SE (114 deg) of PERTH
47 km NW (316 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 -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KULI P 60.11 0.03 1.87 60.08 0.03 13.8 12 13.9 13.9
KULI S 61.63 0.30 1.06 61.69 -0.06 13.8 12 13.9 13.9
NWAO P 71.51 0.10 1.28 71.55 -0.04 84.4 259 2.3 2.3
NWAO S 81.16 1.00 0.73 81.11 0.05 84.4 259 2.3 2.3
KLBR P 79.96 0.10 1.23 79.97 -0.01 137.5 345 -30.8 30.8
KLBR S 95.80 1.00 0.70 95.76 0.04 137.5 345 1.4 1.4
6 times used, S = 0.042
Deferred Data
MECK S 102.90 1.00 0.68 103.63 -0.73 166.0 320 -23.9 23.9
MUN P 88.04 0.20 1.03 88.43 -0.38 201.3 296 -42.2 42.2
MUN S 110.30 1.00 0.67 111.31 -1.01 201.3 296 -40.3 40.3
RKGY P 94.07 0.30 0.94 91.63 2.44 227.7 207 -42.2 42.2
RKGY S 120.90 1.00 0.67 116.88 4.02 227.7 207 -40.3 40.3
Velocity Ratios
KULI NWAO KLBR
KULI 1.65 1.71 1.72
0.15 0.14 0.08
NWAO 1.71 1.70 0.00
0.14 0.09 0.00
KLBR 1.72 0.00 1.71
0.08 0.00 0.05
Date 2018-04-16
Origin Time 1649 19.58 +- 0.83
Zone 50
Easting 512.62 +- 7.02 Longitude 117.134
Northing 6443.81 +- 5.78 Latitude -32.142
Depth 2.00 +- 20.34 N
Arrival times = 11 S.D. = 0.325 Seismographs = 7
Nearest recorder = 57.8 km Gap = 107.6 deg Accuracy = C
Effects Code = Imax = 0 Fault =
20 km E (100 deg) of BEVE
WESTERN AUSTRALIA
123 km E (100 deg) of PERTH
19 km E ( 97 deg) of Beverley
Record Dur Sync Unc Resp Seismometer Recorder Pol
KOO6 0.00 Seismograph details unknown
MECK 0.00 Seismograph details unknown
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
MECK P 29.37 0.10 1.32 29.01 0.36 57.8 348 2.2 2.2
KLBR P 32.80 0.10 1.28 33.40 -0.60 84.7 43 1.6 1.6
KLBR S 43.10 1.00 0.73 42.98 0.12 84.7 43 1.6 1.6
NWAO P 33.84 0.10 1.27 33.85 -0.01 87.5 173 1.5 1.5
NWAO S 43.70 1.00 0.72 43.75 -0.05 87.5 173 1.5 1.5
MUN P 33.96 0.10 1.27 34.14 -0.18 89.2 281 1.4 1.4
MUN S 44.15 1.00 0.72 44.23 -0.08 89.2 281 1.4 1.4
KULI P 38.17 0.10 1.25 37.92 0.25 112.4 121 1.2 1.2
BLDU P 47.24 0.10 1.20 47.03 0.21 174.3 346 -30.8 30.8
BLDU S 67.40 1.00 0.68 67.66 -0.26 174.3 346 -40.3 40.3
BR4 SG 75.20 1.00 0.67 75.02 0.18 200.7 34 0.7 0.7
11 times used, S = 0.325
Deferred Data
MECK S 36.20 1.00 0.75 35.55 0.65 57.8 348 2.2 2.2
KULI S 51.20 1.00 0.71 50.64 0.56 112.4 121 1.2 1.2
KOO6 P 44.00 0.10 1.22 43.55 0.45 149.5 12 -30.8 30.8
KOO6 S 61.60 1.00 0.69 60.88 0.72 149.5 12 0.9 0.9
BR4 P 51.57 0.10 1.19 50.30 1.27 200.7 34 -42.2 42.2
RKGY P 61.02 0.10 1.15 59.15 1.87 273.9 182 -42.2 42.2
MORW P 68.01 0.20 0.98 69.12 -1.11 356.4 342 -42.2 42.2
Velocity Ratios
KLBR NWAO MUN BLDU
KLBR 1.78 0.00 0.00 1.68
0.09 0.00 0.00 0.16
NWAO 0.00 1.69 0.00 1.77
0.00 0.08 0.00 0.18
MUN 0.00 0.00 1.71 1.75
0.00 0.00 0.08 0.18
BLDU 1.68 1.77 1.75 1.73
0.16 0.18 0.18 0.04
Date 2018-04-16
Origin Time 1649 19.71 +- 1.40
Zone 50
Easting 518.17 +- 24.71 Longitude 117.193
Northing 6443.39 +- 9.25 Latitude -32.146
Depth 2.00 +- 34.32 N
Arrival times = 7 S.D. = 0.218 Seismographs = 5
Nearest recorder = 59.6 km Gap = 165.4 deg Accuracy = C
Effects Code = Imax = 0 Fault =
17 km SW (204 deg) of QUA
WESTERN AUSTRALIA
129 km E (100 deg) of PERTH
25 km E ( 97 deg) of Beverley
Record Dur Sync Unc Resp Seismometer Recorder Pol
KOO6 0.00 Seismograph details unknown
MECK 0.00 Seismograph details unknown
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
MECK P 29.37 0.10 1.32 29.44 -0.06 59.6 342 2.1 2.1
MECK S 36.20 1.00 0.75 36.18 0.02 59.6 342 2.1 2.1
KLBR P 32.80 0.10 1.28 32.97 -0.17 81.2 40 1.6 1.6
NWAO P 33.84 0.10 1.28 33.85 -0.01 86.7 177 1.5 1.5
NWAO S 43.70 1.00 0.72 43.66 0.04 86.7 177 1.5 1.5
KOO6 P 44.00 0.10 1.22 43.58 0.42 148.8 10 -30.8 30.8
BLDU P 47.24 0.10 1.20 47.41 -0.17 176.1 344 -30.8 30.8
7 times used, S = 0.218
Deferred Data
KLBR S 43.10 1.00 0.73 42.16 0.94 81.2 40 1.6 1.6
MUN P 33.96 0.10 1.27 35.17 -1.21 94.8 281 1.4 1.4
MUN S 44.15 1.00 0.72 45.89 -1.74 94.8 281 1.4 1.4
KULI P 38.17 0.10 1.25 37.25 0.92 107.5 123 1.3 1.3
KULI S 51.20 1.00 0.71 49.42 1.78 107.5 123 1.3 1.3
KOO6 S 61.60 1.00 0.69 60.82 0.78 148.8 10 0.9 0.9
BLDU S 67.40 1.00 0.68 68.17 -0.77 176.1 344 -40.3 40.3
BR4 P 51.57 0.10 1.19 50.10 1.47 197.9 33 -42.2 42.2
BR4 SG 75.20 1.00 0.67 74.39 0.81 197.9 33 0.7 0.7
RKGY P 61.02 0.10 1.15 59.28 1.74 273.9 184 -42.2 42.2
MORW P 68.01 0.20 0.98 69.51 -1.50 358.5 341 -42.2 42.2
Velocity Ratios
MECK NWAO
MECK 1.71 0.00
0.12 0.00
NWAO 0.00 1.70
0.00 0.08
Date 2018-04-17
Origin Time 1106 51.84 +- 1.59
Zone 50
Easting 509.19 +- 14.69 Longitude 117.097
Northing 6444.94 +- 10.48 Latitude -32.132
Depth 2.00 +- 46.97 N
Arrival times = 7 S.D. = 0.170 Seismographs = 4
Nearest recorder = 85.6 km Gap = 125.7 deg Accuracy = C
Effects Code = Imax = 0 Fault =
16 km E ( 98 deg) of BEVE
WESTERN AUSTRALIA
120 km E (100 deg) of PERTH
16 km E ( 95 deg) of Beverley
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
MUN P 65.80 0.10 1.28 65.82 -0.02 85.6 281 1.5 1.5
KLBR P 65.79 0.10 1.28 65.93 -0.13 86.3 46 1.5 1.5
KLBR S 75.90 1.00 0.72 75.69 0.21 86.3 46 1.5 1.5
NWAO P 66.42 0.10 1.27 66.37 0.05 89.0 171 1.5 1.5
NWAO S 76.30 1.00 0.72 76.44 -0.14 89.0 171 1.5 1.5
BLDU P 79.23 0.10 1.20 79.03 0.20 172.5 347 -30.8 30.8
BLDU S 99.10 1.00 0.68 99.46 -0.36 172.5 347 -23.9 23.9
7 times used, S = 0.170
Deferred Data
MUN S 76.80 1.00 0.73 75.51 1.29 85.6 281 1.5 1.5
Velocity Ratios
KLBR NWAO BLDU
KLBR 1.72 0.00 1.73
0.08 0.00 0.18
NWAO 0.00 1.68 1.78
0.00 0.08 0.19
BLDU 1.73 1.78 1.73
0.18 0.19 0.04
Date 2018-04-19
Origin Time 1919 42.43 +- 1.94
Zone 50
Easting 709.71 +- 8.39 Longitude 119.251
Northing 6318.94 +- 6.28 Latitude -33.248
Depth 2.00 +- 14.36 N
Arrival times = 11 S.D. = 0.292 Seismographs = 8
Nearest recorder = 120.9 km Gap = 183.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
66 km NE ( 63 deg) of PIN
WESTERN AUSTRALIA
350 km SE (115 deg) of PERTH
232 km NE ( 34 deg) of ALBANY
43 km SW (244 deg) of Lake King
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
KULI P 61.68 0.10 1.24 62.15 -0.47 120.9 301 1.1 1.1
KULI S 76.00 1.00 0.70 75.83 0.17 120.9 301 1.1 1.1
GNOT P 64.05 0.10 1.23 64.17 -0.12 133.5 234 -30.8 30.8
COR2 PG 73.55 0.10 1.19 73.51 0.04 190.5 312 0.7 0.7
COR2 SG 94.90 1.00 0.68 95.06 -0.16 190.5 312 0.7 0.7
NWAO P 72.21 0.10 1.19 72.05 0.16 191.7 280 -42.2 42.2
NWAO S 94.00 1.00 0.68 94.15 -0.15 191.7 280 -40.3 40.3
KLBR P 77.26 0.10 1.17 76.86 0.41 231.4 322 -42.2 42.2
RKGY P 80.33 0.20 1.01 80.17 0.17 258.8 233 -42.2 42.2
KMBL P 87.84 0.30 0.91 88.15 -0.31 324.8 50 -42.2 42.2
MORW P 116.28 0.30 0.86 116.02 0.27 555.2 325 -42.2 42.2
11 times used, S = 0.292
Deferred Data
GNOT SG 80.50 0.50 0.80 79.32 1.18 133.5 234 1.0 1.0
KLBR S 104.60 1.00 0.66 102.52 2.08 231.4 322 -40.3 40.3
RKGY S 111.10 1.00 0.66 108.28 2.82 258.8 233 -40.3 40.3
BR4 P 85.80 0.20 0.99 85.31 0.49 301.2 342 -42.2 42.2
BR4 S 119.05 1.00 0.65 117.23 1.82 301.2 342 -40.3 40.3
MUN P 88.56 0.30 0.91 87.36 1.20 318.3 295 -42.2 42.2
KMBL S 123.30 1.00 0.64 122.18 1.12 324.8 50 -40.3 40.3
BLDU P 94.04 0.30 0.90 94.63 -0.59 378.3 320 -42.2 42.2
BLDU S 133.10 1.00 0.63 133.46 -0.36 378.3 320 -40.3 40.3
MEEK P 138.22 0.30 0.84 137.82 0.40 735.3 355 -42.2 42.2
Velocity Ratios
KULI NWAO
KULI 1.74 0.00
0.06 0.00
NWAO 0.00 1.73
0.00 0.04
Date 2018-04-19
Origin Time 1919 40.50 +- 1.58
Zone 50
Easting 715.01 +- 5.25 Longitude 119.308
Northing 6316.52 +- 4.96 Latitude -33.269
Depth 6.56 +- 13.05
Arrival times = 12 S.D. = 0.190 Seismographs = 9
Nearest recorder = 126.7 km Gap = 185.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
70 km NE ( 67 deg) of PIN
WESTERN AUSTRALIA
356 km SE (115 deg) of PERTH
233 km NE ( 35 deg) of ALBANY
40 km SW (238 deg) of Lake King
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.8
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KULI P 61.68 0.10 1.23 61.55 0.13 126.7 301 -13.5 38.8
KULI S 76.00 1.00 0.70 76.58 -0.58 126.7 301 -10.2 29.4
GNOT P 64.05 0.10 1.22 63.98 0.07 141.7 237 -13.5 38.8
GNOT S 80.50 0.50 0.80 80.78 -0.28 141.7 237 -10.2 29.4
COR2 PG 73.55 0.10 1.19 73.51 0.04 196.1 311 1.3 36.7
NWAO P 72.21 0.10 1.19 72.12 0.09 197.4 280 -39.9 52.0
KLBR P 77.26 0.10 1.17 77.14 0.13 236.5 321 -39.9 52.0
RKGY P 80.33 0.20 1.01 80.37 -0.04 261.8 234 -39.9 52.0
BR4 P 85.80 0.20 0.99 85.92 -0.12 305.0 342 -39.9 52.0
KMBL P 87.84 0.30 0.91 88.11 -0.27 322.1 49 -39.9 52.0
KMBL S 123.30 1.00 0.64 123.28 0.02 322.1 49 -37.9 45.7
MUN P 88.56 0.30 0.91 88.35 0.21 324.1 295 -39.9 52.0
12 times used, S = 0.190
Deferred Data
COR2 SG 94.90 1.00 0.67 96.63 -1.73 196.1 311 1.3 27.7
NWAO S 94.00 1.00 0.67 95.29 -1.29 197.4 280 -37.9 45.7
KLBR S 104.60 1.00 0.66 104.08 0.52 236.5 321 -37.9 45.7
RKGY S 111.10 1.00 0.66 109.74 1.36 261.8 234 -37.9 45.7
BR4 S 119.05 1.00 0.65 119.46 -0.41 305.0 342 -37.9 45.7
BLDU P 94.04 0.30 0.90 95.97 -1.93 383.5 319 -39.9 52.0
BLDU S 133.10 1.00 0.63 137.05 -3.95 383.5 319 -37.9 45.7
MORW P 116.28 0.30 0.86 118.57 -2.28 560.2 325 -39.8 52.0
MEEK P 138.22 0.30 0.84 141.22 -3.00 737.9 354 -39.9 52.2
Velocity Ratios
KULI GNOT KMBL
KULI 1.68 0.00 1.81
0.06 0.00 0.11
GNOT 0.00 1.70 1.80
0.00 0.03 0.09
KMBL 1.81 1.80 1.75
0.11 0.09 0.03
Date 2018-04-24
Origin Time 1138 0.68 +- 1.03
Zone 50
Easting 586.30 +- 10.85 Longitude 117.935
Northing 6235.85 +- 10.48 Latitude -34.014
Depth 4.39 +- 19.89
Arrival times = 8 S.D. = 0.192 Seismographs = 5
Nearest recorder = 15.2 km Gap = 177.1 deg Accuracy = B
Effects Code = Imax = 0 Fault =
15 km SW (235 deg) of GNOT
WESTERN AUSTRALIA
301 km SE (140 deg) of PERTH
110 km N ( 3 deg) of ALBANY
11 km SW (213 deg) of Gnowangerup
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
GNOT P 3.37 0.10 1.46 3.28 0.09 15.2 55 17.1 17.1
GNOT S 4.92 0.50 0.95 5.08 -0.16 15.2 55 17.1 17.1
RKGY P 18.60 0.10 1.25 18.65 -0.05 110.1 232 2.4 2.4
RKGY S 31.15 1.00 0.71 31.11 0.04 110.1 232 2.4 2.4
NWAO P 23.00 0.10 1.23 22.71 0.29 137.1 331 -30.8 30.8
NWAO S 38.43 1.00 0.70 38.57 -0.14 137.1 331 1.9 1.9
KLBR P 39.35 0.20 1.00 39.41 -0.06 269.1 356 -42.2 42.2
MUN P 40.10 0.20 1.00 40.40 -0.30 277.4 324 -42.2 42.2
8 times used, S = 0.192
Deferred Data
KLBR S 69.90 1.00 0.66 68.29 1.61 269.1 356 -40.3 40.3
MUN S 72.20 1.00 0.65 70.02 2.18 277.4 324 -40.3 40.3
Velocity Ratios
GNOT RKGY NWAO
GNOT 1.58 1.72 1.71
0.25 0.12 0.09
RKGY 1.72 1.70 0.00
0.12 0.07 0.00
NWAO 1.71 0.00 1.69
0.09 0.00 0.05
Date 2018-04-26
Origin Time 0821 3.92 +- 0.99
Zone 50
Easting 525.70 +- 8.95 Longitude 117.272
Northing 6460.24 +- 6.06 Latitude -31.994
Depth 3.32 +- 36.17
Arrival times = 9 S.D. = 0.236 Seismographs = 5
Nearest recorder = 62.7 km Gap = 136.3 deg Accuracy = A
Effects Code = Imax = 0 Fault =
0 km S (176 deg) of QUW
WESTERN AUSTRALIA
135 km E ( 92 deg) of PERTH
35 km NE ( 67 deg) of Beverley
Record Dur Sync Unc Resp Seismometer Recorder Pol
KOO6 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.8
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
PING P 14.47 0.05 1.51 14.16 0.31 62.7 204 3.3 3.3
KLBR P 14.28 0.10 1.31 14.35 -0.07 63.8 45 3.3 3.3
KLBR S 21.80 1.00 0.74 21.58 0.22 63.8 45 3.3 3.3
MUN P 20.16 0.10 1.26 20.33 -0.17 100.5 270 2.0 2.0
MUN S 31.74 1.00 0.72 31.71 0.03 100.5 270 2.0 2.0
NWAO P 20.48 0.10 1.26 20.82 -0.34 103.5 181 2.0 2.0
NWAO S 32.55 1.00 0.71 32.53 0.02 103.5 181 2.0 2.0
BLDU P 29.60 0.10 1.21 29.57 0.03 162.2 340 -30.8 30.8
BLDU S 48.80 1.00 0.69 48.75 0.05 162.2 340 1.3 1.3
9 times used, S = 0.236
Deferred Data
PING S 21.90 0.50 0.85 21.26 0.64 62.7 204 3.3 3.3
KOO6 P 26.20 0.10 1.23 25.18 1.02 130.9 8 -30.8 30.8
BR4 P 32.70 0.10 1.20 31.97 0.73 179.7 34 -42.2 42.2
BR4 S 54.20 1.00 0.68 52.91 1.29 179.7 34 -40.3 40.3
Velocity Ratios
KLBR MUN NWAO BLDU
KLBR 1.73 0.00 0.00 1.76
0.11 0.00 0.00 0.16
MUN 0.00 1.71 0.00 0.00
0.00 0.07 0.00 0.00
NWAO 0.00 0.00 1.73 0.00
0.00 0.00 0.07 0.00
BLDU 1.76 0.00 0.00 1.75
0.16 0.00 0.00 0.05
Date 2018-04-27
Origin Time 1445 51.65 +- 17.56
Zone 50
Easting 750.68 +- 95.05 Longitude 119.700
Northing 6282.86 +- 53.23 Latitude -33.564
Depth 2.00 +- 65.54 N
Arrival times = 6 S.D. = 0.425 Seismographs = 4
Nearest recorder = 156.5 km Gap = 310.0 deg Accuracy = D
Effects Code = Imax = 0 Fault =
32 km W (273 deg) of RAVT
WESTERN AUSTRALIA
403 km SE (117 deg) of PERTH
232 km NE ( 47 deg) of ALBANY
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
GNOT P 76.49 0.20 1.06 76.61 -0.12 156.5 254 -30.8 30.8
GNOT S 95.20 1.00 0.69 94.90 0.30 156.5 254 0.8 0.8
KULI P 79.60 0.10 1.20 79.22 0.38 175.1 304 -30.8 30.8
KULI S 99.90 1.00 0.68 99.90 0.00 175.1 304 -40.3 40.3
NWAO P 87.20 0.20 1.01 87.18 0.02 240.5 286 -42.2 42.2
PING PG 96.30 0.50 0.83 97.13 -0.83 278.8 294 0.5 0.5
6 times used, S = 0.425
Deferred Data
NWAO SG 115.85 1.00 0.66 118.10 -2.25 240.5 286 0.5 0.5
NWAO S 115.85 1.00 0.66 113.66 2.19 240.5 286 -40.3 40.3
RKGY P 92.64 0.30 0.92 91.56 1.08 276.7 244 -42.2 42.2
RKGY S 123.13 1.00 0.65 121.28 1.85 276.7 244 -40.3 40.3
PING SG 126.50 1.00 0.65 128.66 -2.16 278.8 294 0.5 0.5
KLBR P 95.30 0.30 0.92 92.57 2.73 285.0 319 -42.2 42.2
KLBR S 128.00 1.00 0.65 123.03 4.97 285.0 319 -40.3 40.3
BR4 SG 145.00 2.00 0.56 147.90 -2.90 348.4 337 0.4 0.4
MUN P 106.40 0.30 0.90 103.00 3.40 371.4 297 -42.2 42.2
Velocity Ratios
GNOT KULI
GNOT 1.75 0.00
0.05 0.00
KULI 0.00 1.73
0.00 0.04