Data Report
Bulletin / 2018-07
Contributed by CUPWA
Date 2018-07-11
Origin Time 1812 51.88 +- 1.13
Zone 50
Easting 496.45 +- 7.26 Longitude 116.963
Northing 6655.61 +- 6.06 Latitude -30.231
Depth 2.00 +- 23.38 N
Arrival times = 10 S.D. = 0.370 Seismographs = 6
Nearest recorder = 48.8 km Gap = 144.7 deg Accuracy = B
Effects Code = Imax = 0 Fault =
11 km NW (336 deg) of FAW
WESTERN AUSTRALIA
218 km NE ( 29 deg) of PERTH
22 km NW (316 deg) of Kalannie
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
BLDU P 59.55 0.10 1.34 59.84 -0.29 48.8 209 2.7 2.7
BLDU S 65.05 1.00 0.76 65.36 -0.31 48.8 209 2.7 2.7
CADX S 69.90 0.50 0.86 68.98 0.92 61.9 164 2.1 2.1
KOO6 P 65.21 0.05 1.47 65.36 -0.15 82.6 143 1.6 1.6
KOO6 S 74.80 0.50 0.84 74.72 0.08 82.6 143 1.6 1.6
BR4 P 74.11 0.05 1.41 74.37 -0.26 138.9 109 -30.8 30.8
BR4 S 90.10 1.00 0.70 90.24 -0.14 138.9 109 1.0 1.0
MORW P 77.27 0.10 1.21 76.88 0.39 156.9 325 -30.8 30.8
MORW S 95.05 1.00 0.69 95.21 -0.16 156.9 325 0.8 0.8
KLBR P 78.81 0.10 1.20 78.54 0.26 168.7 153 -30.8 30.8
10 times used, S = 0.370
Deferred Data
KLBR S 97.62 1.00 0.68 98.48 -0.86 168.7 153 0.8 0.8
MUN P 83.69 0.20 1.03 83.30 0.39 206.6 200 -42.2 42.2
MUN S 107.94 1.00 0.67 106.74 1.20 206.6 200 -40.3 40.3
Velocity Ratios
BLDU KOO6 BR4 MORW
BLDU 1.72 0.00 1.72 1.69
0.15 0.00 0.16 0.13
KOO6 0.00 1.72 1.72 1.68
0.00 0.04 0.19 0.15
BR4 1.72 1.72 1.72 0.00
0.16 0.19 0.05 0.00
MORW 1.69 1.68 0.00 1.70
0.13 0.15 0.00 0.05
Date 2018-07-12
Origin Time 1208 17.08 +- 1.16
Zone 50
Easting 526.01 +- 9.73 Longitude 117.275
Northing 6460.87 +- 6.84 Latitude -31.988
Depth 2.00 +- 36.85 N
Arrival times = 8 S.D. = 0.230 Seismographs = 4
Nearest recorder = 63.2 km Gap = 136.2 deg Accuracy = B
Effects Code = Imax = 0 Fault =
0 km NE ( 64 deg) of QUW
WESTERN AUSTRALIA
135 km E ( 92 deg) of PERTH
36 km NE ( 66 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
KLBR P 27.29 0.10 1.31 27.39 -0.09 63.2 45 2.1 2.1
KLBR S 34.50 1.00 0.74 34.53 -0.03 63.2 45 2.1 2.1
MUN P 33.26 0.10 1.26 33.53 -0.26 100.8 270 1.3 1.3
MUN S 45.10 1.00 0.72 44.93 0.17 100.8 270 1.3 1.3
NWAO P 33.94 0.10 1.26 34.07 -0.13 104.1 182 1.2 1.2
NWAO S 46.04 0.10 1.13 45.85 0.19 104.1 182 1.2 1.2
BLDU P 43.12 0.10 1.21 42.77 0.35 161.7 340 -30.8 30.8
BLDU S 61.66 1.00 0.69 61.76 -0.10 161.7 340 0.8 0.8
8 times used, S = 0.230
Velocity Ratios
KLBR MUN NWAO BLDU
KLBR 1.71 0.00 0.00 1.72
0.12 0.00 0.00 0.15
MUN 0.00 1.73 0.00 0.00
0.00 0.07 0.00 0.00
NWAO 0.00 0.00 1.72 1.70
0.00 0.00 0.02 0.16
BLDU 1.72 0.00 1.70 1.71
0.15 0.00 0.16 0.05