Data Report
Bulletin / 2017-12
Contributed by CUPWA
Date 2017-12-05
Origin Time 0826 5.68 +- 68.15
Zone 50
Easting 414.80 +- 317.19 Longitude 116.083
Northing 6299.82 +- 153.49 Latitude -33.438
Depth 2.00 +- 704.90 N
Arrival times = 5 S.D. = 0.363 Seismographs = 3
Nearest recorder = 121.2 km Gap = 216.2 deg Accuracy = D
Effects Code = Imax = 0 Fault =
42 km SE (154 deg) of AHAR
WESTERN AUSTRALIA
166 km S (173 deg) of PERTH
131 km NE ( 42 deg) of AUGUSTA
10 km SW (220 deg) of Collie
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
NWAO P 25.06 0.20 1.08 25.46 -0.39 121.2 62 1.1 1.1
NWAO S 39.70 1.00 0.70 39.17 0.53 121.2 62 1.1 1.1
RKGY P 30.30 0.20 1.06 30.27 0.03 153.9 147 -30.8 30.8
MUN P 31.70 0.20 1.05 31.43 0.27 162.2 4 -30.8 30.8
MUN S 50.20 1.00 0.69 50.49 -0.29 162.2 4 0.8 0.8
5 times used, S = 0.363
Deferred Data
RKGY S 50.20 1.00 0.69 48.20 2.00 153.9 147 0.9 0.9
KLBR P 44.24 0.20 1.01 43.31 0.93 257.9 37 -42.2 42.2
KLBR S 70.75 1.00 0.66 71.35 -0.60 257.9 37 -40.3 40.3
Velocity Ratios
NWAO MUN
NWAO 1.75 0.00
0.07 0.00
MUN 0.00 1.71
0.00 0.05
Date 2017-12-05
Origin Time 2255 42.90 +- 1.24
Zone 50
Easting 513.05 +- 27.79 Longitude 117.140
Northing 6313.34 +- 8.36 Latitude -33.319
Depth 3.64 +- 16.04
Arrival times = 8 S.D. = 0.096 Seismographs = 4
Nearest recorder = 44.3 km Gap = 169.1 deg Accuracy = B
Effects Code = Imax = 0 Fault =
33 km N ( 22 deg) of BEAU
WESTERN AUSTRALIA
198 km N (340 deg) of ALBANY
194 km SE (142 deg) of PERTH
11 km E ( 71 deg) of Arthur River
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
NWAO P 50.16 0.10 1.35 50.16 -0.00 44.3 11 5.0 5.0
NWAO S 55.20 0.50 0.88 55.20 0.00 44.3 11 5.0 5.0
RKGY P 66.01 0.30 0.98 65.95 0.06 143.9 185 -30.8 30.8
RKGY S 82.54 1.00 0.69 82.66 -0.12 143.9 185 1.6 1.6
MUN P 69.90 0.30 0.96 69.94 -0.04 172.4 329 -30.8 30.8
MUN S 90.30 1.00 0.68 90.27 0.03 172.4 329 -40.3 40.3
KLBR P 73.46 0.10 1.19 73.35 0.10 200.0 16 -42.2 42.2
KLBR S 95.84 1.00 0.67 96.09 -0.25 200.0 16 -40.3 40.3
8 times used, S = 0.096
Velocity Ratios
NWAO RKGY MUN KLBR
NWAO 1.69 1.72 1.78 1.74
0.09 0.14 0.11 0.08
RKGY 1.72 1.72 0.00 0.00
0.14 0.07 0.00 0.00
MUN 1.78 0.00 1.76 0.00
0.11 0.00 0.06 0.00
KLBR 1.74 0.00 0.00 1.73
0.08 0.00 0.00 0.04
Date 2017-12-06
Origin Time 1432 3.73 +- 2.41
Zone 50
Easting 649.04 +- 18.29 Longitude 118.599
Northing 6323.05 +- 7.56 Latitude -33.221
Depth 10.75 +- 19.25
Arrival times = 8 S.D. = 0.199 Seismographs = 4
Nearest recorder = 73.9 km Gap = 245.7 deg Accuracy = B
Effects Code = Imax = 0 Fault =
32 km N (357 deg) of PIN
WESTERN AUSTRALIA
294 km SE (119 deg) of PERTH
208 km N ( 19 deg) of ALBANY
18 km SE (138 deg) of Lake Grace
Record Dur Sync Unc Resp Seismometer Recorder Pol
GNOT 0.00 Seismograph details unknown
PING 0.00 Seismograph details unknown
BLDU 0.00 Seismograph details unknown
KULI 0.00 Seismograph details unknown
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
KULI P 15.86 0.10 1.29 15.92 -0.06 73.9 325 8.5 8.5
KULI S 24.60 0.50 0.84 24.37 0.23 73.9 325 8.5 8.5
GNOT P 19.30 0.20 1.10 19.06 0.24 93.3 211 6.8 6.8
GNOT S 29.50 0.50 0.83 29.69 -0.19 93.3 211 6.8 6.8
NWAO P 24.48 0.20 1.07 24.47 0.01 131.6 284 -30.8 30.8
NWAO S 40.10 1.00 0.70 40.06 0.04 131.6 284 -23.9 23.9
PING PG 31.20 0.20 1.05 31.51 -0.31 169.9 297 3.7 3.7
PING SG 50.90 0.50 0.78 50.77 0.13 169.9 297 3.7 3.7
8 times used, S = 0.199
Deferred Data
PING P 31.20 0.20 1.05 29.84 1.36 169.9 297 -30.8 30.8
PING S 50.90 0.50 0.79 49.31 1.59 169.9 297 -40.3 40.3
KLBR P 33.91 0.20 1.03 33.40 0.51 197.4 336 -40.6 40.6
KLBR S 57.10 1.00 0.67 55.10 2.00 197.4 336 -40.3 40.3
RKGY P 36.60 0.20 1.03 35.57 1.03 214.9 223 -40.6 40.6
RKGY SG 62.20 1.00 0.67 63.18 -0.98 214.9 223 2.9 2.9
RKGY S 62.20 1.00 0.67 58.79 3.41 214.9 223 -40.3 40.3
MUN P 42.10 0.30 0.93 41.56 0.54 263.3 301 -40.6 40.6
MUN S 71.50 1.00 0.66 68.96 2.54 263.3 301 -40.3 40.3
BLDU P 50.20 0.30 0.91 51.07 -0.87 340.0 327 -40.6 40.6
BLDU S 85.10 1.00 0.64 85.12 -0.02 340.0 327 -40.3 40.3
KMBL P 55.50 0.30 0.90 55.07 0.43 372.2 57 -40.6 40.6
MORW P 72.73 0.30 0.87 73.49 -0.76 520.9 331 -40.6 40.6
Velocity Ratios
KULI GNOT NWAO
KULI 1.72 0.00 0.00
0.06 0.00 0.00
GNOT 0.00 1.66 0.00
0.00 0.05 0.00
NWAO 0.00 0.00 1.75
0.00 0.00 0.07
Date 2017-12-08
Origin Time 0303 28.34 +- 2.21
Zone 50
Easting 572.68 +- 10.07 Longitude 117.757
Northing 6631.96 +- 19.09 Latitude -30.442
Depth 0.07 +- 61.19
Arrival times = 7 S.D. = 0.141 Seismographs = 4
Nearest recorder = 59.2 km Gap = 160.7 deg Accuracy = B
Effects Code = Imax = 0 Fault =
4 km W (281 deg) of BEAW
WESTERN AUSTRALIA
247 km NE ( 48 deg) of PERTH
11 km W (275 deg) of Beacon
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
BR4 P 37.96 0.05 1.51 38.00 -0.04 59.2 112 0.4 0.4
BR4 S 45.00 1.00 0.75 44.70 0.30 59.2 112 0.4 0.4
BLDU P 44.96 0.10 1.26 45.03 -0.06 102.3 259 0.2 0.2
BLDU S 56.90 1.00 0.71 56.59 0.31 102.3 259 0.2 0.2
KLBR P 49.02 0.10 1.23 49.12 -0.10 127.4 180 0.2 0.2
KLBR S 63.60 1.00 0.70 63.53 0.07 127.4 180 0.2 0.2
MORW P 62.25 0.20 1.02 62.25 0.00 225.3 312 -42.2 42.2
7 times used, S = 0.141
Deferred Data
NWAO P 66.70 0.20 1.00 68.83 -2.13 279.8 190 -42.2 42.2
NWAO S 97.95 1.00 0.65 98.96 -1.01 279.8 190 -40.3 40.3
KMBL P 85.80 0.30 0.89 84.41 1.39 408.5 105 -42.2 42.2
Velocity Ratios
BR4 BLDU KLBR
BR4 1.73 0.00 0.00
0.11 0.00 0.00
BLDU 0.00 1.72 0.00
0.00 0.07 0.00
KLBR 0.00 0.00 1.71
0.00 0.00 0.06
Date 2017-12-15
Origin Time 0604 38.34 +- 0.41
Zone 50
Easting 550.73 +- 2.68 Longitude 117.542
Northing 6366.28 +- 4.28 Latitude -32.840
Depth 4.23 +- 6.90
Arrival times = 12 S.D. = 0.144 Seismographs = 9
Nearest recorder = 30.4 km Gap = 179.6 deg Accuracy = A
Effects Code = Imax = 0 Fault =
30 km E ( 71 deg) of NWAO
WESTERN AUSTRALIA
241 km N (353 deg) of ALBANY
187 km SE (122 deg) of PERTH
166 km SE (129 deg) of Mundaring
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 -10.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
NWAO P 43.26 0.10 1.39 43.35 -0.09 30.4 251 8.4 8.4
NWAO S 47.04 0.50 0.90 46.83 0.21 30.4 251 8.4 8.4
KULI P 48.10 0.03 1.67 48.21 -0.10 60.3 71 4.3 4.3
KULI S 55.30 0.50 0.86 55.05 0.25 60.3 71 4.3 4.3
PING P 48.70 0.05 1.50 48.71 -0.01 63.4 305 4.1 4.1
PING S 56.10 1.00 0.74 55.90 0.20 63.4 305 4.1 4.1
COR2 P 52.35 0.05 1.47 52.39 -0.04 86.0 13 3.0 3.0
KLBR P 60.94 0.10 1.22 60.78 0.16 139.9 8 -30.8 30.8
KOO6 P 71.50 0.10 1.17 71.54 -0.04 223.3 358 -42.2 42.2
BLDU P 75.75 0.20 1.01 75.90 -0.15 259.3 342 -42.2 42.2
KMBL P 98.25 0.30 0.88 97.99 0.26 441.9 69 -42.2 42.2
MORW P 97.80 0.30 0.88 97.99 -0.19 442.0 340 -42.2 42.2
12 times used, S = 0.144
Deferred Data
COR2 S 61.90 1.00 0.72 62.14 -0.24 86.0 13 3.0 3.0
KLBR S 76.40 1.00 0.70 77.00 -0.60 139.9 8 1.9 1.9
MUN P 62.67 0.20 1.05 63.27 -0.60 157.7 307 -30.8 30.8
MUN S 81.60 1.00 0.69 81.91 -0.31 157.7 307 1.6 1.6
RKGY P 70.90 0.30 0.95 69.09 1.81 203.0 194 -42.2 42.2
RKGY S 94.90 1.00 0.67 92.05 2.85 203.0 194 -40.3 40.3
KOO6 S 96.10 1.00 0.67 96.32 -0.22 223.3 358 -40.3 40.3
BLDU S 102.30 1.00 0.66 103.91 -1.61 259.3 342 -40.3 40.3
MEEK P 128.20 0.30 0.84 128.62 -0.42 695.1 8 -42.2 42.2
Velocity Ratios
NWAO KULI PING
NWAO 1.77 0.00 0.00
0.14 0.00 0.00
KULI 0.00 1.74 0.00
0.00 0.06 0.00
PING 0.00 0.00 1.71
0.00 0.00 0.11
Date 2017-12-21
Origin Time 1547 3.85 +- 56.10
Zone 50
Easting 647.36 +- 289.81 Longitude 118.595
Northing 6242.78 +- 167.46 Latitude -33.945
Depth 2.00 +- 299.38 N
Arrival times = 5 S.D. = 0.317 Seismographs = 3
Nearest recorder = 48.4 km Gap = 287.2 deg Accuracy = D
Effects Code = Imax = 0 Fault =
37 km E (102 deg) of GNOW
WESTERN AUSTRALIA
339 km SE (132 deg) of PERTH
135 km NE ( 30 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 11.51 0.05 1.54 11.76 -0.25 48.4 270 2.7 2.7
GNOT S 17.60 0.50 0.87 17.24 0.36 48.4 270 2.7 2.7
KULI P 27.61 0.10 1.22 27.50 0.11 147.2 343 -30.8 30.8
KULI S 44.10 1.00 0.69 44.51 -0.41 147.2 343 0.9 0.9
PING P 37.05 0.20 1.02 36.71 0.34 218.4 316 -42.2 42.2
5 times used, S = 0.317
Deferred Data
PING SG 62.60 1.00 0.67 64.20 -1.60 218.4 316 0.6 0.6
PING S 62.60 1.00 0.67 61.21 1.39 218.4 316 -40.3 40.3
Velocity Ratios
GNOT KULI
GNOT 1.80 1.65
0.08 0.11
KULI 1.65 1.69
0.11 0.05
Date 2017-12-22
Origin Time 1658 15.08 +- 0.78
Zone 50
Easting 503.33 +- 8.09 Longitude 117.035
Northing 6495.34 +- 5.80 Latitude -31.677
Depth 8.06 +- 7.94
Arrival times = 7 S.D. = 0.105 Seismographs = 5
Nearest recorder = 5.7 km Gap = 97.0 deg Accuracy = B
Effects Code = Imax = 0 Fault =
5 km SE (152 deg) of MECK
WESTERN AUSTRALIA
116 km E ( 75 deg) of PERTH
6 km SE (155 deg) of Meckering
Record Dur Sync Unc Resp Seismometer Recorder Pol
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 i P 16.81 0.02 2.14 16.72 0.09 5.7 332 55.7 55.7
MECK i S 17.73 0.20 1.22 17.85 -0.12 5.7 332 55.7 55.7
KLBR P 26.30 0.10 1.30 26.40 -0.10 68.9 82 6.9 6.9
MUN P 28.90 0.10 1.28 29.02 -0.12 85.1 246 5.6 5.6
BLDU P 34.71 0.10 1.24 34.71 -0.00 122.1 345 -30.8 30.8
NWAO P 37.25 0.10 1.22 37.18 0.07 139.8 172 -30.8 30.8
NWAO S 53.80 1.00 0.70 53.76 0.04 139.8 172 3.4 3.4
7 times used, S = 0.105
Deferred Data
KLBR S 35.40 1.00 0.74 34.25 1.15 68.9 82 6.9 6.9
MUN S 38.34 1.00 0.72 38.69 -0.35 85.1 246 5.6 5.6
BLDU S 49.95 1.00 0.70 48.88 1.07 122.1 345 3.9 3.9
Velocity Ratios
MECK NWAO
MECK 1.53 1.76
0.13 0.07
NWAO 1.76 1.75
0.07 0.05
Date 2017-12-25
Origin Time 0955 48.06 +- 0.70
Zone 50
Easting 559.03 +- 7.05 Longitude 117.619
Northing 6557.13 +- 4.77 Latitude -31.118
Depth 2.34 +- 18.89
Arrival times = 10 S.D. = 0.291 Seismographs = 7
Nearest recorder = 34.9 km Gap = 113.9 deg Accuracy = B
Effects Code = Imax = 0 Fault =
28 km N (350 deg) of KBN
WESTERN AUSTRALIA
192 km NE ( 62 deg) of PERTH
35 km SE (157 deg) of Koorda
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 ML 2.4
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KOO6 P 53.69 0.05 1.58 53.77 -0.08 34.9 337 4.3 4.3
KOO6 S 57.55 0.50 0.90 57.73 -0.18 34.9 337 4.3 4.3
KLBR P 56.39 0.10 1.33 56.89 -0.49 54.0 166 2.8 2.8
KLBR S 63.23 1.00 0.75 63.00 0.23 54.0 166 2.8 2.8
MECK P 61.70 0.05 1.47 61.35 0.35 81.4 225 1.8 1.8
BR4 P 62.25 0.05 1.47 62.00 0.25 85.4 52 1.8 1.8
BLDU P 64.75 0.10 1.26 64.95 -0.20 103.5 302 1.5 1.5
BLDU S 76.94 1.00 0.71 76.67 0.27 103.5 302 1.5 1.5
MUN P 74.05 0.20 1.05 74.09 -0.04 164.4 234 -30.8 30.8
NWAO P 79.10 0.20 1.03 79.11 -0.01 203.7 190 -42.2 42.2
10 times used, S = 0.291
Deferred Data
MECK S 71.20 1.00 0.73 70.56 0.64 81.4 225 1.8 1.8
BR4 S 73.00 1.00 0.73 71.66 1.34 85.4 52 1.8 1.8
MUN S 92.50 1.00 0.69 93.48 -0.98 164.4 234 0.9 0.9
KULI P 76.95 0.10 1.20 76.17 0.78 179.4 163 -42.2 42.2
KULI S 98.10 1.00 0.68 97.15 0.95 179.4 163 -40.3 40.3
NWAO S 102.00 1.00 0.67 102.26 -0.26 203.7 190 -40.3 40.3
MORW P 90.10 0.20 1.00 87.54 2.56 273.5 325 -42.2 42.2
MORW S 116.70 1.00 0.65 116.94 -0.24 273.5 325 -40.3 40.3
Velocity Ratios
KOO6 KLBR BLDU
KOO6 1.69 0.00 1.75
0.10 0.00 0.16
KLBR 0.00 1.82 0.00
0.00 0.14 0.00
BLDU 1.75 0.00 1.73
0.16 0.00 0.07
Date 2017-12-31
Origin Time 1838 2.58 +- 1.32
Zone 50
Easting 558.78 +- 18.93 Longitude 117.616
Northing 6557.62 +- 10.11 Latitude -31.114
Depth 1.60 +- 28.84
Arrival times = 7 S.D. = 0.152 Seismographs = 5
Nearest recorder = 34.3 km Gap = 188.1 deg Accuracy = B
Effects Code = Imax = 0 Fault =
29 km N (350 deg) of KBN
WESTERN AUSTRALIA
192 km NE ( 62 deg) of PERTH
34 km SE (158 deg) of Koorda
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
KOO6 P 8.22 0.10 1.37 8.19 0.03 34.3 338 3.2 3.2
KLBR P 11.53 0.10 1.33 11.48 0.05 54.6 166 2.0 2.0
KLBR S 17.56 1.00 0.75 17.66 -0.10 54.6 166 2.0 2.0
MECK P 15.72 0.10 1.28 15.88 -0.16 81.6 224 1.3 1.3
MECK S 25.50 1.00 0.73 25.11 0.39 81.6 224 1.3 1.3
MUN P 28.53 0.30 0.97 28.68 -0.15 164.5 233 -30.8 30.8
NWAO P 33.83 0.10 1.18 33.75 0.08 204.2 190 -42.2 42.2
7 times used, S = 0.152
Deferred Data
MUN S 48.90 1.00 0.69 48.01 0.89 164.5 233 0.6 0.6
PING w P 29.10 1.00 0.54 28.79 0.31 165.3 200 -30.8 30.8
PING S 48.60 1.00 0.68 48.24 0.36 165.3 200 0.7 0.7
NWAO S 58.40 1.00 0.67 57.00 1.40 204.2 190 -40.3 40.3
MORW P 43.72 0.30 0.92 42.07 1.65 272.9 325 -42.2 42.2
Velocity Ratios
KLBR MECK
KLBR 1.67 0.00
0.13 0.00
MECK 0.00 1.74
0.00 0.09