Data Report
Bulletin / 1997-05
Contributed by CUPWA
Date 1997-05-02
Origin Time 1236 3.41 +- 0.28
Zone 50
Easting 562.93 +- 2.32 Longitude 117.662
Northing 6518.81 +- 2.14 Latitude -31.464
Depth 2.82 +- 5.27
Arrival times = 9 S.D. = 0.042 Seismographs = 5
Nearest recorder = 17.0 km Gap = 180.1 deg Accuracy = A
Effects Code = Imax = 0 Fault =
2 km NE ( 42 deg) of KBS
393 km N (357 deg) of ALBANY
180 km E ( 73 deg) of PERTH
19 km N (343 deg) of KELLERBERRIN
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB i P 6.20 0.10 1.45 6.22 -0.02 17.0 147 10.4 10.4
KLB i S 8.20 0.10 1.30 8.17 0.03 17.0 147 10.4 10.4
BAL i P 24.80 0.10 1.23 24.82 -0.02 131.7 316 -30.8 30.8
BAL i S 39.80 0.10 1.11 39.79 0.01 131.7 316 1.4 1.4
MUN i P 27.30 0.10 1.22 27.26 0.04 149.1 247 -30.8 30.8
MUN i S 44.60 0.10 1.10 44.61 -0.01 149.1 247 1.2 1.2
NWAO e S 49.50 0.30 0.61 49.58 -0.08 167.1 193 -23.9 23.9
MRWA e PMP 48.00 0.50 0.35 48.18 -0.18 295.9 326 -31.8 31.8
MRWA e S 77.00 0.30 0.58 76.94 0.06 295.9 326 -40.3 40.3
9 times used, S = 0.042
Deferred Data
MRWA SMS 82.50 0.30 0.46 82.82 -0.32 295.9 326 -25.5 25.5
Velocity Ratios
KLB BAL MUN
KLB 1.72 1.70 1.73
0.10 0.03 0.03
BAL 1.70 1.70 0.00
0.03 0.01 0.00
MUN 1.73 0.00 1.72
0.03 0.00 0.01
EXPECTED ARRIVAL TIMES
Code Dist Delta P PG S SG
KBS 2.4 0.02 4.1 4.1 4.5 4.5
KBG 6.3 0.06 4.6 4.6 5.3 5.3
KBN 9.8 0.09 5.1 5.1 6.2 6.2
KBW 11.1 0.10 5.3 5.3 6.6 6.6
KLB 17.0 0.15 6.2 6.2 8.2 8.2
QUW 68.9 0.62 14.7 14.7 22.5 22.5
QUA 70.2 0.63 14.9 14.9 22.8 22.8
GOO 77.4 0.70 16.0 16.0 24.8 24.8
GOK 78.2 0.70 16.2 16.2 25.0 25.0
EMMO 81.3 0.73 16.7 16.7 25.9 25.9
CAE 81.3 0.73 16.7 16.7 25.9 25.9
DOW 82.0 0.74 16.8 16.8 26.1 26.1
CMC 92.0 0.83 18.4 18.4 28.8 28.8
KALJ 93.3 0.84 18.6 18.6 29.2 29.2
MBW 98.0 0.88 19.4 19.4 30.5 30.5
MBS 98.2 0.88 19.4 19.4 30.5 30.5
MBC 99.1 0.89 19.6 19.6 30.8 30.8
MBE 102.0 0.92 20.1 20.1 31.6 31.6
YK2 104.6 0.94 20.5 20.5 32.3 32.3
YK1 105.1 0.95 20.6 20.6 32.5 32.5
YK5 105.5 0.95 20.6 20.6 32.6 32.6
YK4 105.6 0.95 20.6 20.6 32.6 32.6
YK3 106.8 0.96 20.8 20.8 32.9 32.9
BAL 131.7 1.18 24.8 24.9 39.8 39.8
AZA 132.6 1.19 24.9 25.0 40.0 40.0
TOU 138.2 1.24 25.7 26.0 41.6 41.6
MUN 149.1 1.34 27.3 27.7 44.6 44.6
NWAO 167.1 1.50 29.8 30.7 49.6 49.6
NWA 167.1 1.50 29.8 30.7 49.6 49.6
ONG2 272.9 2.45 42.8 47.9 72.1 78.8
ONG5 273.2 2.46 42.8 48.0 72.2 78.9
ONG1 273.8 2.46 42.9 48.1 72.3 79.0
ONG3 274.4 2.47 42.9 48.2 72.4 79.2
ONG4 275.9 2.48 43.1 48.4 72.7 79.6
Date 1997-05-03
Origin Time 2254 13.70 +- 9.66
Zone 53
Easting 854.64 +- 58.95 Longitude 138.843
Northing 6222.69 +- 54.62 Latitude -34.076
Depth 5.00 +- 94.53 N
Arrival times = 10 S.D. = 1.607 Seismographs = 5
Nearest recorder = 1077.6 km Gap = 294.7 deg Accuracy = C
Effects Code = Imax = 0 Fault =
66 km NW (316 deg) of SDN
SOUTH AUSTRALIA
97 km N ( 13 deg) of ADELAIDE
34 km SE (142 deg) of CLARE
Record Dur Sync Unc Resp Seismometer Recorder Pol
ASPA 0.00 Seismograph details unknown
FORT 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
FORT e P 152.10 0.10 0.70 150.10 2.00 1077.6 286 -42.2 42.2
FORT e S 251.80 0.30 0.51 251.37 0.43 1077.6 286 -40.3 40.3
ASPA e P 171.50 0.30 0.56 170.78 0.72 1248.2 336 -42.2 42.2
ASPA e S 287.10 0.50 0.46 287.37 -0.27 1248.2 336 -40.3 40.3
WARB e SMP 226.90 0.50 0.25 227.68 -0.78 1466.1 303 -59.5 30.9
WARB e S 332.60 0.50 0.46 333.21 -0.61 1466.1 303 -40.3 40.3
WB2 e P 215.00 0.30 0.56 216.64 -1.64 1627.6 343 -42.2 42.2
WB2 e S 368.20 0.50 0.46 367.21 0.99 1627.6 343 -40.3 40.3
MRWA e P 289.00 1.00 0.44 291.35 -2.35 2240.3 277 -49.9 49.5
MRWA e SN 496.00 1.00 0.27 498.98 -2.98 2253.6 277 -40.3 40.3
10 times used, S = 1.607
Deferred Data
WARB e P 226.90 0.50 0.51 197.11 29.79 1466.1 303 -42.2 42.2
MRWA e S 496.00 1.00 0.40 504.90 -8.90 2240.3 277 -44.8 46.2
Velocity Ratios
FORT ASPA WB2
FORT 1.72 1.82 1.85
0.00 0.08 0.02
ASPA 1.82 1.73 1.86
0.08 0.01 0.05
WB2 1.85 1.86 1.76
0.02 0.05 0.01
Date 1997-05-04
Origin Time 0531 47.80 +- 1.96
Zone 50
Easting 612.22 +- 8.62 Longitude 118.173
Northing 6589.02 +- 4.08 Latitude -30.827
Depth 1.00 +- 8.68 G
Arrival times = 11 S.D. = 0.300 Seismographs = 5
Nearest recorder = 93.5 km Gap = 250.6 deg Accuracy = C
Effects Code = Imax = 0 Fault =
10 km N (341 deg) of MUKI
WESTERN AUSTRALIA
254 km NE ( 61 deg) of PERTH
11 km N (346 deg) of Mukinbudin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.9
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB e P 62.50 0.20 0.77 63.06 -0.56 93.5 204 0.8 0.8
KLB e S 73.80 0.20 0.70 73.63 0.17 93.5 204 0.8 0.8
BAL i-P 71.00 0.10 1.22 70.88 0.12 142.5 279 -30.8 30.8
BAL i S 87.10 0.10 1.10 87.17 -0.07 142.5 279 0.5 0.5
MUN e P 82.00 0.20 0.71 81.71 0.29 226.3 235 -42.2 42.2
MUN e S2 109.20 0.20 0.36 109.11 0.09 226.3 235 -23.9 23.9
NWAO e P 84.90 0.50 0.59 84.49 0.41 249.2 200 -42.2 42.2
NWAO e S 111.90 0.50 0.53 111.81 0.09 249.2 200 -40.3 40.3
NWAO e SMS 115.30 0.50 0.29 115.80 -0.50 249.2 200 -26.3 26.3
MRWA e P 87.30 0.20 0.70 87.66 -0.36 275.4 309 -42.2 42.2
MRWA e S 117.50 0.30 0.58 117.33 0.17 275.4 309 -40.3 40.3
11 times used, S = 0.300
Deferred Data
MUN e S 109.20 0.10 0.74 106.98 2.22 226.3 235 -40.3 40.3
Velocity Ratios
KLB BAL NWAO MRWA
KLB 1.77 1.56 1.70 1.76
0.04 0.09 0.09 0.05
BAL 1.56 1.69 1.78 1.87
0.09 0.01 0.13 0.06
NWAO 1.70 1.78 1.73 0.00
0.09 0.13 0.04 0.00
MRWA 1.76 1.87 0.00 1.76
0.05 0.06 0.00 0.02
Date 1997-05-07
Origin Time 0319 45.65 +- 0.37
Zone 50
Easting 565.11 +- 3.70 Longitude 117.685
Northing 6519.91 +- 2.92 Latitude -31.454
Depth 0.35 +- 9.99
Arrival times = 10 S.D. = 0.126 Seismographs = 5
Nearest recorder = 16.9 km Gap = 188.8 deg Accuracy = A
Effects Code = Imax = 0 Fault =
4 km NE ( 50 deg) of KBS
WESTERN AUSTRALIA
182 km E ( 73 deg) of PERTH
20 km N (350 deg) of Kellerberrin
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
KLB i-P 48.30 0.10 1.45 48.41 -0.11 16.9 155 2.2 2.2
KLB i S 50.40 0.10 1.30 50.32 0.08 16.9 155 2.2 2.2
BAL e P 67.30 0.20 0.75 67.25 0.05 132.4 315 0.3 0.3
BAL e S 82.30 0.20 0.67 82.23 0.07 132.4 315 0.3 0.3
MUN e P 69.90 0.20 0.74 70.05 -0.15 151.5 246 -30.8 30.8
MUN e S 87.50 0.30 0.61 87.51 -0.01 151.5 246 0.2 0.2
NWAO e P 72.60 0.30 0.68 72.46 0.14 168.7 194 -30.8 30.8
NWAO e S 92.30 0.30 0.61 92.27 0.03 168.7 194 0.2 0.2
MRWA e PMP 91.00 0.30 0.39 90.68 0.32 296.2 326 -31.9 31.9
MRWA e SMS 125.20 0.30 0.32 125.42 -0.22 296.2 326 -25.5 25.5
10 times used, S = 0.126
Velocity Ratios
KLB BAL MUN NWAO
KLB 1.79 1.68 1.72 1.72
0.11 0.04 0.04 0.05
BAL 1.68 1.69 0.00 0.00
0.04 0.03 0.00 0.00
MUN 1.72 0.00 1.73 0.00
0.04 0.00 0.03 0.00
NWAO 1.72 0.00 0.00 1.73
0.05 0.00 0.00 0.03
Date 1997-05-09
Origin Time 0631 5.76 +- 4.76
Zone 50
Easting 573.61 +- 46.43 Longitude 117.935
Northing 5011.48 +- 46.46 Latitude -45.046
Depth 5.00 +- 54.33 N
Arrival times = 17 S.D. = 1.350 Seismographs = 10
Nearest recorder = 1346.3 km Gap = 321.0 deg Accuracy = C
Effects Code = Imax = 0 Fault =
1165 km S (176 deg) of RKG
Place names undefined for this area
Record Dur Sync Unc Resp Seismometer Recorder Pol
NWAO 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 4.5
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
NWAO e P 175.70 0.20 0.61 174.67 1.03 1346.3 357 -42.2 42.2
NWAO e S 299.50 0.50 0.46 300.03 -0.53 1346.3 357 -40.3 40.3
MUN e P 189.20 0.20 0.61 188.15 1.05 1457.8 353 -42.2 42.2
MUN e S 323.00 0.50 0.46 323.49 -0.49 1457.8 353 -40.3 40.3
KLB e P 194.00 0.30 0.56 192.42 1.58 1493.1 359 -42.2 42.2
KLB e S 332.00 1.00 0.40 330.93 1.07 1493.1 359 -40.3 40.3
WOOL e P 204.60 0.30 0.50 203.64 0.96 1585.9 13 -42.2 42.2
BAL e P 206.00 0.10 0.70 206.04 -0.04 1605.7 355 -42.2 42.2
BAL e S 353.00 0.50 0.46 354.64 -1.64 1605.7 355 -40.3 40.3
MRWA e P 225.40 0.20 0.61 225.22 0.18 1764.3 353 -42.2 42.2
MRWA e S 388.00 0.50 0.46 388.02 -0.02 1764.3 353 -40.3 40.3
FORT e P 233.60 0.50 0.51 232.19 1.41 1822.1 32 -42.2 42.2
MEEK e P 258.50 0.30 0.56 259.05 -0.55 2043.2 1 -42.3 42.3
MEEK e S 447.00 0.30 0.51 447.14 -0.14 2043.2 1 -40.4 40.4
WARB e S 496.60 0.50 0.46 495.58 1.02 2237.1 23 -44.5 45.8
FITZ e P 353.20 0.30 0.56 356.14 -2.94 3071.0 15 -59.6 59.9
FITZ e S 633.50 1.00 0.40 636.67 -3.17 3071.0 15 -58.8 58.4
17 times used, S = 1.350
Deferred Data
MEEK e PN 254.80 0.20 0.43 258.97 -4.17 2043.2 1 -42.2 42.2
WARB e PN 278.30 0.20 0.43 282.92 -4.62 2241.3 23 -42.2 42.2
WARB e P 287.70 1.00 0.44 282.94 4.76 2237.1 23 -49.4 49.0
Velocity Ratios
NWAO MUN KLB BAL MRWA MEEK FITZ
NWAO 1.73 1.74 1.78 1.77 1.78 1.78 1.88
0.00 0.13 0.13 0.05 0.03 0.02 0.01
MUN 1.74 1.73 0.00 1.79 1.80 1.79 1.89
0.13 0.00 0.00 0.09 0.05 0.02 0.01
KLB 1.78 0.00 1.73 1.75 1.78 1.78 1.89
0.13 0.00 0.01 0.19 0.08 0.04 0.02
BAL 1.77 1.79 1.75 1.73 1.80 1.79 1.91
0.05 0.09 0.19 0.00 0.08 0.03 0.02
MRWA 1.78 1.80 1.78 1.80 1.74 1.78 1.92
0.03 0.05 0.08 0.08 0.00 0.05 0.02
MEEK 1.78 1.79 1.78 1.79 1.78 1.75 1.97
0.02 0.02 0.04 0.03 0.05 0.00 0.03
FITZ 1.88 1.89 1.89 1.91 1.92 1.97 1.81
0.01 0.01 0.02 0.02 0.02 0.03 0.00
EXPECTED ARRIVAL TIMES
Code Dist Delta P PG S SG
RKG 1165.4 10.48 152.8 195.9 262.0 327.7
ONG4 1238.7 11.14 161.7 207.8 277.4 347.9
ONG1 1240.9 11.16 161.9 208.2 277.8 348.6
ONG2 1241.3 11.16 162.0 208.3 277.9 348.7
ONG3 1241.6 11.17 162.0 208.3 278.0 348.8
ONG5 1241.7 11.17 162.0 208.3 278.0 348.8
MUJA 1295.0 11.65 168.5 217.0 289.2 363.5
NWA 1346.3 12.11 174.7 225.4 300.0 377.7
NWAO 1346.3 12.11 174.7 225.4 300.0 377.7
QUA 1448.7 13.03 187.1 242.1 321.6 406.0
QUW 1450.3 13.04 187.3 242.3 321.9 406.4
YK1 1451.7 13.06 187.4 242.6 322.2 406.8
YK3 1452.3 13.06 187.5 242.7 322.3 406.9
YK4 1455.0 13.09 187.8 243.1 322.9 407.7
YK5 1455.1 13.09 187.8 243.1 322.9 407.7
YK2 1455.2 13.09 187.8 243.2 323.0 407.8
MUN 1457.8 13.11 188.1 243.6 323.5 408.5
KLB 1493.1 13.43 192.4 249.3 330.9 418.2
KBS 1505.6 13.54 193.9 251.4 333.6 421.7
KBG 1509.2 13.57 194.4 252.0 334.3 422.7
KBW 1511.5 13.59 194.6 252.3 334.8 423.3
KBN 1517.1 13.64 195.3 253.3 336.0 424.9
GOO 1517.8 13.65 195.4 253.4 336.1 425.0
GOK 1524.0 13.71 196.2 254.4 337.4 426.8
DOW 1559.6 14.03 200.5 260.2 344.9 436.6
EMMO 1571.8 14.14 201.9 262.2 347.5 439.9
CAE 1571.8 14.14 201.9 262.2 347.5 439.9
CMC 1583.3 14.24 203.3 264.1 349.9 443.1
WOOL 1585.9 14.26 203.6 264.5 350.5 443.8
MBS 1587.7 14.28 203.9 264.8 350.9 444.4
KALJ 1588.1 14.28 203.9 264.8 350.9 444.5
MBC 1589.1 14.29 204.0 265.0 351.1 444.7
MBW 1589.5 14.29 204.1 265.1 351.2 444.8
MBE 1590.6 14.30 204.2 265.2 351.5 445.1
BAL 1605.7 14.44 206.0 267.7 354.6 449.3
AZA 1618.3 14.55 207.6 269.8 357.3 452.8
TOU 1618.4 14.56 207.6 269.8 357.3 452.8
MRWA 1764.3 15.87 225.2 293.6 388.0 493.1
FORT 1822.1 16.39 232.2 303.0 400.2 509.1
MEEK 2043.2 18.38 259.0 339.1 447.1 570.2
CLV 2055.9 18.25 260.5 341.2 449.8 573.7
MGR 2088.6 18.46 264.4 346.5 457.1 582.7
STR 2120.5 18.77 268.2 351.7 464.6 591.5
ADE 2122.4 18.79 268.5 352.0 465.1 592.1
ADT 2123.9 18.80 268.7 352.2 465.4 592.5
THS 2143.4 18.97 270.9 355.4 470.0 597.9
WKA 2149.1 18.99 271.5 356.3 471.1 599.4
RPA 2196.9 19.46 276.9 364.1 482.8 612.6
NBK 2240.1 19.83 281.4 371.2 492.9 624.6
WARB 2241.3 20.08 282.9 371.4 495.6 624.9
HTT 2251.9 19.91 282.5 373.1 495.5 627.8
EDO 2260.7 20.01 283.6 374.6 497.6 630.3
HKN 2280.0 20.24 285.9 377.7 502.6 635.6
BFD 2281.2 20.09 285.0 377.9 501.0 635.9
HWK 2286.0 20.30 286.4 378.7 503.9 637.2
WSA 2286.3 20.26 286.2 378.7 503.5 637.3
WRG 2286.9 20.27 286.3 378.8 503.6 637.5
SVR 2290.2 20.15 285.6 379.4 502.6 638.4
PNA 2309.4 20.43 288.0 382.5 507.9 643.7
STG 2315.0 20.36 287.7 383.4 507.5 645.3
SPK 2324.2 20.44 288.4 384.9 509.3 647.8
TRR 2364.0 20.77 291.5 391.4 516.5 658.8
SFF 2388.6 20.97 293.2 395.4 520.6 665.6
CRNS 2409.7 21.17 294.9 398.9 525.2 671.4
TAU 2416.5 21.21 295.3 400.0 526.0 673.3
MOO 2421.7 21.25 295.6 400.8 526.9 674.7
SAV 2448.3 21.47 297.5 405.2 531.0 682.1
GVLS 2450.7 21.50 297.8 405.6 531.6 682.8
PIAS 2460.5 21.59 298.5 407.1 533.1 685.5
ROYS 2482.1 21.77 300.2 410.7 536.4 691.4
TOO 2439.3 21.94 301.9 539.7
GIRL 2507.0 22.55 308.0 550.8
UMB 2476.2 22.27 305.3 545.9
ARK 2487.1 22.37 306.3 547.7
TOSS 2497.3 22.46 307.1 549.2
STK 2514.7 22.62 308.7 552.1
MBL 2653.5 23.86 320.9 574.2
DTMS 2649.5 23.83 320.5 573.5
ASPA 2775.8 24.96 331.6 593.1
ASP 2775.8 24.96 331.6 593.1
CMS 2846.6 25.60 337.6 603.5
CAN 2836.9 25.51 336.8 602.1
KBH 2839.1 25.53 337.0 602.5
CNB 2865.4 25.77 339.2 606.4
SPG 2879.7 25.90 340.4 608.5
OOL 2882.0 25.92 340.6 608.8
DAL 2885.7 25.95 340.9 609.4
AVL 2889.9 25.99 341.3 610.0
FITX 3070.3 27.61 356.1 636.6
FITZ 3071.0 27.62 356.1 636.7
AVOX 3017.8 27.14 351.8 628.9
WERS 3041.1 27.35 353.7 632.3
MCQ 3088.4 27.78 357.5 639.2
PHDS 3077.3 27.68 356.6 637.6
WRB 3165.7 28.47 363.8 650.4
WB1 3165.8 28.47 363.8 650.4
WRA 3167.1 28.48 363.9 650.6
WR1 3167.1 28.48 363.9 650.6
WB2 3167.6 28.49 364.0 650.7
WR2 3167.7 28.49 364.0 650.7
WR3 3168.6 28.50 364.1 650.8
WR4 3169.3 28.50 364.1 650.9
WR5 3169.4 28.50 364.1 651.0
WB3 3169.8 28.51 364.2 651.0
WR6 3171.1 28.52 364.2 651.2
WB4 3171.9 28.53 364.3 651.3
WR7 3171.9 28.53 364.3 651.3
WR8 3172.9 28.54 364.4 651.5
WR9 3173.3 28.54 364.4 651.5
WB5 3174.8 28.55 364.6 651.7
WR10 3174.3 28.55 364.5 651.7
WB6 3177.1 28.57 364.7 652.1
RIV 3093.0 27.82 357.9 639.8
WB7 3179.1 28.59 364.9 652.4
WB8 3181.8 28.62 365.1 652.7
WB9 3184.2 28.64 365.3 653.1
WB0 3187.0 28.66 365.5 653.5
WB10 3187.1 28.66 365.5 653.5
ARG 3289.9 29.59 373.8 668.3
KNA 3399.1 30.57 382.6 683.7
ISQ 3348.7 30.12 378.7 676.7
QIS 3366.5 30.28 380.1 679.2
COO 3360.4 30.22 379.6 678.4
RMQ 3430.6 30.85 385.2 688.2
BRS 3652.9 32.85 402.6 719.6
KAKA 3837.3 34.51 417.0 745.2
CTAO 3799.2 34.17 414.0 740.0
CTA 3799.2 34.17 414.0 740.0
MAW 4025.9 36.21 431.4 771.5
655.1
RIV 3101.3 27.89 360.6 643.1
ARG 3283.7 29.53 375.4 669.4
KNA 3393.0 30.51 384.2 684.9
ISQ 3348.4 30.11 380.7 678.7
QIS 3366.2 30.27 382.1 681.2
COO 3367.7 30.29 382.2 681.5
RMQ 3435.6 30.90 387.6 691.0
BRS 3659.3 32.91 405.2 722.5
KAKA 3832.4 34.47 418.6 746.6
CTAO 3801.3 34.19 416.2 742.3
CTA 3801.3 34.19 416.2 742.3
MAW 4029.3 36.24 433.7 773.9
Date 1997-05-10
Origin Time 0107 38.97 +- 2.11
Zone 50
Easting 565.97 +- 15.10 Longitude 117.694
Northing 6524.34 +- 7.84 Latitude -31.414
Depth 5.00 +- 18.71 N
Arrival times = 9 S.D. = 0.581 Seismographs = 5
Nearest recorder = 20.7 km Gap = 196.7 deg Accuracy = B
Effects Code = Imax = 0 Fault =
4 km SE (148 deg) of KBN
WESTERN AUSTRALIA
185 km E ( 72 deg) of PERTH
24 km N (354 deg) of Kellerberrin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.7
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB e S 44.90 0.20 0.78 44.88 0.02 20.7 162 14.4 14.4
BAL w P 59.50 2.00 0.48 59.95 -0.45 129.9 313 -30.8 30.8
BAL e S2 76.00 0.30 0.35 75.51 0.49 129.9 313 -23.9 23.9
BAL e S 76.00 0.30 0.62 74.89 1.11 129.9 313 2.3 2.3
MUN e P 63.00 1.00 0.54 63.33 -0.33 154.1 245 -30.8 30.8
MUN e S 81.30 0.20 0.67 81.56 -0.26 154.1 245 2.0 2.0
NWAO e P 66.20 0.50 0.61 66.02 0.18 173.3 194 -30.8 30.8
NWAO e S 86.50 0.50 0.55 86.28 0.22 173.3 194 -40.3 40.3
MRWA e SG 119.10 0.20 0.63 119.92 -0.82 293.0 325 1.0 1.0
9 times used, S = 0.581
Deferred Data
KLB e P 41.00 0.30 0.80 42.46 -1.46 20.7 162 14.4 14.4
MRWA e S 119.10 0.20 0.63 111.49 7.61 293.0 325 -40.3 40.3
Velocity Ratios
BAL MUN NWAO
BAL 1.80 0.00 0.00
0.21 0.00 0.00
MUN 0.00 1.76 0.00
0.00 0.09 0.00
NWAO 0.00 0.00 1.75
0.00 0.00 0.05
Date 1997-05-10
Origin Time 2135 5.94 +- 0.75
Zone 50
Easting 562.71 +- 6.85 Longitude 117.660
Northing 6519.92 +- 5.26 Latitude -31.454
Depth 1.00 +- 14.84 C
Arrival times = 10 S.D. = 0.214 Seismographs = 5
Nearest recorder = 18.0 km Gap = 181.5 deg Accuracy = A
Effects Code = Imax = 0 Fault =
3 km N ( 21 deg) of KBS
WESTERN AUSTRALIA
180 km E ( 73 deg) of PERTH
20 km N (344 deg) of Kellerberrin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.7
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB e P 8.70 0.10 1.01 8.89 -0.19 18.0 148 4.1 4.1
KLB i S 11.00 0.10 1.30 10.93 0.07 18.0 148 4.1 4.1
BAL e P 27.00 0.20 0.75 27.27 -0.27 130.7 315 0.6 0.6
BAL e S 42.00 0.20 0.68 42.05 -0.05 130.7 315 0.6 0.6
MUN e P 30.00 0.10 0.85 29.97 0.03 149.3 246 -30.8 30.8
MUN e S 47.20 0.10 0.77 47.20 0.00 149.3 246 0.5 0.5
NWAO e P 33.00 2.00 0.46 32.61 0.39 168.2 193 -30.8 30.8
NWAO e S 52.30 0.50 0.55 52.40 -0.10 168.2 193 0.4 0.4
MRWA e S 80.00 0.10 0.72 79.58 0.42 294.9 326 -40.3 40.3
MRWA e SMS 85.00 0.10 0.40 85.30 -0.30 294.9 326 -25.5 25.5
10 times used, S = 0.214
Velocity Ratios
KLB BAL MUN NWAO
KLB 1.83 1.69 1.70 1.70
0.11 0.04 0.03 0.19
BAL 1.69 1.71 0.00 0.00
0.04 0.03 0.00 0.00
MUN 1.70 0.00 1.71 0.00
0.03 0.00 0.01 0.00
NWAO 1.70 0.00 0.00 1.71
0.19 0.00 0.00 0.16
Date 1997-05-11
Origin Time 0213 17.18 +- 0.26
Zone 50
Easting 562.86 +- 2.18 Longitude 117.662
Northing 6519.36 +- 2.08 Latitude -31.459
Depth 3.36 +- 4.94
Arrival times = 9 S.D. = 0.131 Seismographs = 5
Nearest recorder = 17.5 km Gap = 180.9 deg Accuracy = A
Effects Code = Imax = 0 Fault =
2 km NE ( 28 deg) of KBS
WESTERN AUSTRALIA
180 km E ( 73 deg) of PERTH
20 km N (344 deg) of Kellerberrin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.5
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB i P 20.20 0.10 1.44 20.09 0.11 17.5 147 11.8 11.8
KLB i S 22.00 0.10 1.30 22.11 -0.11 17.5 147 11.8 11.8
BAL i P 38.60 0.10 1.23 38.48 0.12 131.2 315 -30.8 30.8
BAL i S 53.30 0.10 1.11 53.44 -0.14 131.2 315 1.6 1.6
MUN i P 41.00 0.10 1.22 41.00 -0.00 149.3 246 -30.8 30.8
MUN i S 58.50 0.10 1.10 58.42 0.08 149.3 246 1.4 1.4
NWAO e P 43.60 0.10 0.84 43.58 0.02 167.7 193 -30.8 30.8
NWAO e S 63.10 0.30 0.61 63.42 -0.32 167.7 193 -23.9 23.9
MRWA SMS 96.20 0.20 0.50 96.40 -0.20 295.4 326 -25.4 25.4
9 times used, S = 0.131
Deferred Data
MRWA e P 60.50 0.10 0.80 59.20 1.30 295.4 326 -42.2 42.2
Velocity Ratios
KLB BAL MUN NWAO
KLB 1.60 1.70 1.75 1.76
0.09 0.03 0.03 0.03
BAL 1.70 1.69 0.00 1.96
0.03 0.01 0.00 0.16
MUN 1.75 0.00 1.73 0.00
0.03 0.00 0.01 0.00
NWAO 1.76 1.96 0.00 1.74
0.03 0.16 0.00 0.02
Date 1997-05-11
Origin Time 0251 5.63 +- 0.91
Zone 50
Easting 562.72 +- 9.96 Longitude 117.660
Northing 6518.26 +- 10.03 Latitude -31.469
Depth 1.87 +- 40.02
Arrival times = 6 S.D. = 0.058 Seismographs = 3
Nearest recorder = 16.6 km Gap = 189.1 deg Accuracy = A
Effects Code = Imax = 0 Fault =
1 km NE ( 43 deg) of KBS
WESTERN AUSTRALIA
180 km E ( 73 deg) of PERTH
19 km N (342 deg) of Kellerberrin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 2.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB i-P 8.30 0.10 1.45 8.36 -0.06 16.6 145 7.4 7.4
KLB i S 10.30 0.10 1.30 10.25 0.05 16.6 145 7.4 7.4
BAL i-P 27.20 0.10 1.23 27.15 0.05 131.9 316 0.9 0.9
BAL e S 42.00 0.30 0.62 42.08 -0.08 131.9 316 0.9 0.9
MUN e P 29.50 0.20 0.74 29.50 0.00 148.7 247 -30.8 30.8
MUN e S 46.70 0.30 0.62 46.71 -0.01 148.7 247 0.8 0.8
6 times used, S = 0.058
Deferred Data
MRWA e PMP 51.00 0.50 0.35 50.53 0.47 296.3 327 -31.9 31.9
MRWA e P 51.00 0.50 0.58 47.92 3.08 296.3 327 -42.2 42.2
MRWA e SMS 84.50 0.30 0.32 85.24 -0.74 296.3 327 -25.5 25.5
MRWA e S 84.50 0.30 0.58 79.40 5.10 296.3 327 -40.3 40.3
MRWA e S2 84.50 0.30 0.29 84.53 -0.03 296.3 327 -23.9 23.9
Velocity Ratios
KLB BAL MUN
KLB 1.75 1.68 1.72
0.11 0.04 0.04
BAL 1.68 1.69 0.00
0.04 0.02 0.00
MUN 1.72 0.00 1.72
0.04 0.00 0.03
Date 1997-05-11
Origin Time 1715 38.11 +- 27.00
Zone 50
Easting 716.62 +-2279.94 Longitude 119.717
Northing 5087.06 +-1983.94 Latitude -44.337
Depth 5.00 +-1831.16 N
Arrival times = 6 S.D. = 1.133 Seismographs = 5
Nearest recorder = 1108.8 km Gap = 315.1 deg Accuracy = D
Effects Code = Imax = 0 Fault =
1108 km S (168 deg) of RKG
Place names undefined for this area
Record Dur Sync Unc Resp Seismometer Recorder Pol
RKG 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
RKG e P 177.00 0.30 0.56 178.30 -1.30 1108.8 347 -42.2 42.2
RKG e S 282.00 1.00 0.40 282.37 -0.37 1108.8 347 -40.3 40.3
NWAO e P 201.50 0.50 0.51 199.56 1.94 1284.6 349 -42.2 42.2
MUN w S 345.00 2.00 0.35 344.76 0.24 1405.2 346 -40.3 40.3
MRWA e P 250.90 0.20 0.61 250.94 -0.04 1709.5 347 -42.2 42.2
WB2 e P 384.60 0.50 0.51 384.76 -0.16 3025.0 31 -59.6 59.9
6 times used, S = 1.133
Velocity Ratios
RKG
RKG 1.76
0.01
Date 1997-05-13
Origin Time 2107 9.75 +- 53.23
Zone 50
Easting 601.97 +- 463.78 Longitude 118.283
Northing 5069.80 +-2594.98 Latitude -44.518
Depth 5.00 +-3358.27 N
Arrival times = 7 S.D. = 0.558 Seismographs = 4
Nearest recorder = 1289.5 km Gap = 353.9 deg Accuracy = D
Effects Code = Imax = 0 Fault =
1109 km S (174 deg) of RKG
Place names undefined for this area
Record Dur Sync Unc Resp Seismometer Recorder Pol
RKG 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.2
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
NWAO e P 172.00 0.50 0.51 171.79 0.21 1289.5 355 -42.2 42.2
NWAO e S 292.90 0.50 0.46 292.06 0.84 1289.5 355 -40.3 40.3
MUN e P 186.00 1.00 0.44 185.52 0.48 1403.1 351 -42.2 42.2
MUN e S 316.00 1.00 0.40 315.96 0.04 1403.1 351 -40.3 40.3
KLB e S 322.00 1.00 0.40 322.71 -0.71 1435.1 358 -40.3 40.3
MRWA e P 222.10 0.30 0.56 222.56 -0.46 1709.3 352 -42.2 42.2
MRWA e S 380.00 1.00 0.40 380.45 -0.45 1709.3 352 -40.3 40.3
7 times used, S = 0.558
Deferred Data
RKG e P 147.00 1.00 0.44 150.03 -3.03 1109.5 353 -42.2 42.2
RKG e S 251.00 1.00 0.40 254.16 -3.16 1109.5 353 -40.3 40.3
Velocity Ratios
NWAO MUN MRWA
NWAO 1.75 0.00 1.74
0.01 0.00 0.06
MUN 0.00 1.74 1.77
0.00 0.02 0.12
MRWA 1.74 1.77 1.74
0.06 0.12 0.01
Date 1997-05-14
Origin Time 0715 33.23 +- 0.45
Zone 50
Easting 564.06 +- 4.01 Longitude 117.674
Northing 6519.71 +- 3.32 Latitude -31.455
Depth 1.15 +- 10.83
Arrival times = 10 S.D. = 0.210 Seismographs = 5
Nearest recorder = 17.2 km Gap = 185.1 deg Accuracy = A
Effects Code = Imax = 0 Fault =
3 km NE ( 42 deg) of KBS
WESTERN AUSTRALIA
181 km E ( 73 deg) of PERTH
20 km N (347 deg) of Kellerberrin
Record Dur Sync Unc Resp Seismometer Recorder Pol
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.6
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB i-P 36.10 0.10 1.45 36.04 0.06 17.2 151 4.8 4.8
KLB i S 38.00 0.10 1.30 37.98 0.02 17.2 151 4.8 4.8
BAL e P 54.80 0.10 0.86 54.73 0.07 131.8 315 0.6 0.6
BAL i S 69.50 0.10 1.11 69.64 -0.14 131.8 315 0.6 0.6
MUN e P 57.20 0.10 0.85 57.41 -0.21 150.5 246 -30.8 30.8
MUN i S 75.00 0.10 1.09 74.80 0.20 150.5 246 0.5 0.5
NWAO e P 59.50 1.00 0.53 59.90 -0.40 168.3 194 -30.8 30.8
NWAO e S 79.30 0.50 0.55 79.72 -0.42 168.3 194 0.5 0.5
MRWA e S 107.50 0.30 0.58 107.03 0.47 295.8 326 -40.3 40.3
MRWA e SMS 112.50 0.30 0.32 112.80 -0.30 295.8 326 -25.5 25.5
10 times used, S = 0.210
Velocity Ratios
KLB BAL MUN NWAO
KLB 1.66 1.68 1.75 1.76
0.10 0.03 0.03 0.11
BAL 1.68 1.68 0.00 0.00
0.03 0.01 0.00 0.00
MUN 1.75 0.00 1.74 0.00
0.03 0.00 0.01 0.00
NWAO 1.76 0.00 0.00 1.75
0.11 0.00 0.00 0.09
Date 1997-05-18
Origin Time 0835 52.34 +- 3.89
Zone 49
Easting 701.34 +- 21.50 Longitude 112.975
Northing 7373.21 +- 8.30 Latitude -23.740
Depth 5.00 +- 15.93 N
Arrival times = 12 S.D. = 0.871 Seismographs = 5
Nearest recorder = 177.1 km Gap = 245.2 deg Accuracy = C
Effects Code = Imax = 0 Fault =
173 km W (247 deg) of LP03
WESTERN AUSTRALIA
953 km N (342 deg) of PERTH
145 km NW (331 deg) of CARNARVON
Record Dur Sync Unc Resp Seismometer Recorder Pol
MEEK 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.0
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
GIRL e P 79.00 0.20 0.73 79.86 -0.86 177.1 46 -42.2 42.2
GIRL e PG 80.90 0.20 0.73 81.25 -0.35 177.1 46 1.7 1.7
GIRL e S 101.50 0.50 0.55 100.44 1.06 177.1 46 -40.3 40.3
GIRL e SG 101.50 0.10 0.76 101.30 0.20 177.1 46 1.7 1.7
MEEK e P 138.70 0.20 0.64 137.62 1.08 654.5 120 -42.2 42.2
MEEK e S 201.60 0.30 0.53 201.00 0.60 654.5 120 -40.3 40.3
MEEK e SG 233.10 0.50 0.48 233.14 -0.04 654.5 120 0.5 0.5
MRWA e P 141.00 0.30 0.59 140.48 0.52 678.3 154 -42.2 42.2
MRWA e S 205.00 0.20 0.58 205.98 -0.98 678.3 154 -40.3 40.3
MUN w P 176.80 2.00 0.40 175.49 1.31 967.9 161 -42.2 42.2
WARB e P 229.10 1.00 0.44 230.37 -1.27 1421.6 104 -42.2 42.2
WARB e S 361.10 1.00 0.40 362.48 -1.38 1421.6 104 -40.3 40.3
12 times used, S = 0.871
Deferred Data
MUN e S 271.00 1.00 0.40 266.94 4.06 967.9 161 -40.3 40.3
Velocity Ratios
GIRL MEEK MRWA WARB
GIRL 1.84 1.68 1.67 1.73
0.03 0.02 0.02 0.02
MEEK 1.68 1.73 0.00 1.76
0.02 0.01 0.00 0.04
MRWA 1.67 0.00 1.72 1.77
0.02 0.00 0.01 0.04
WARB 1.73 1.76 1.77 1.75
0.02 0.04 0.04 0.02
Date 1997-05-21
Origin Time 1158 52.87 +- 3.59
Zone 51
Easting 400.18 +- 21.03 Longitude 122.072
Northing 8352.33 +- 35.44 Latitude -14.902
Depth 5.00 +- 36.02 N
Arrival times = 12 S.D. = 0.638 Seismographs = 7
Nearest recorder = 519.9 km Gap = 240.6 deg Accuracy = D
Effects Code = Imax = 0 Fault =
520 km NW (312 deg) of FITZ
WESTERN AUSTRALIA
Record Dur Sync Unc Resp Seismometer Recorder Pol
FITZ 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 3.2
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
FITZ e P 121.80 0.20 0.66 121.83 -0.03 519.9 133 -42.2 42.2
FITZ e S 173.70 0.20 0.59 173.11 0.59 519.9 133 -40.3 40.3
KNA e P 147.00 0.30 0.59 146.72 0.28 725.7 98 -42.2 42.2
KNA e S 216.00 0.30 0.53 216.45 -0.45 725.7 98 -40.3 40.3
MBL w P 146.50 2.00 0.41 147.52 -1.02 732.2 198 -42.2 42.2
MBL e S 217.00 0.20 0.57 217.84 -0.84 732.2 198 -40.3 40.3
KAKA S-P 107.00 0.50 0.72 107.83 -0.83 1150.8 79 0.0 0.0
WARB e P 221.00 0.10 0.70 220.63 0.37 1336.6 159 -42.2 42.2
MEEK e P 222.50 0.30 0.56 222.13 0.37 1349.0 194 -42.2 42.2
MEEK e S 348.40 0.50 0.46 347.74 0.66 1349.0 194 -40.3 40.3
WB2 e P 230.50 0.20 0.61 231.37 -0.87 1425.5 115 -42.2 42.2
WB2 e S 363.60 0.50 0.46 363.82 -0.22 1425.5 115 -40.3 40.3
12 times used, S = 0.638
Deferred Data
WARB e S 348.80 0.50 0.46 345.13 3.67 1336.6 159 -40.3 40.3
Velocity Ratios
FITZ KNA MBL MEEK WB2
FITZ 1.75 1.68 1.75 1.73 1.75
0.01 0.05 0.19 0.02 0.01
KNA 1.68 1.73 0.00 1.75 1.77
0.05 0.01 0.00 0.02 0.02
MBL 1.75 0.00 1.75 1.73 1.75
0.19 0.00 0.04 0.06 0.06
MEEK 1.73 1.75 1.73 1.74 0.00
0.02 0.02 0.06 0.01 0.00
WB2 1.75 1.77 1.75 0.00 1.75
0.01 0.02 0.06 0.00 0.00
Date 1997-05-27
Origin Time 2022 52.49 +- 298.40
Zone 50
Easting 626.28 +-1088.47 Longitude 118.317
Northing 6616.65 +- 728.83 Latitude -30.576
Depth 5.00 +-1683.32 N
Arrival times = 6 S.D. = 0.339 Seismographs = 4
Nearest recorder = 124.5 km Gap = 261.6 deg Accuracy = B
Effects Code = Imax = 0 Fault =
8 km N (353 deg) of BR4
WESTERN AUSTRALIA
280 km NE ( 58 deg) of PERTH
7 km SW (225 deg) of Bonnie Rock
Record Dur Sync Unc Resp Seismometer Recorder Pol
KLB 0.00 Seismograph details unknown
MAGNITUDES
Code R ML MD MB MS MW MN
No magnitudes known Assign ML 1.9
DATA USED
Code Wave AT +- WT CT DT Dist Azim Ad Ae
KLB e P 72.40 0.10 0.87 72.71 -0.31 124.5 205 -30.8 30.8
KLB e S 87.20 0.10 0.78 86.91 0.29 124.5 205 2.4 2.4
BAL e P 77.20 0.10 0.85 76.90 0.30 154.4 268 -30.8 30.8
BAL e S 95.10 0.10 0.76 95.17 -0.07 154.4 268 2.0 2.0
MUN e SG 122.00 2.00 0.40 122.63 -0.63 253.9 231 1.2 1.2
MRWA e SMS 125.00 0.20 0.35 125.15 -0.15 269.9 303 -25.8 25.8
6 times used, S = 0.339
Deferred Data
MRWA e S 125.00 0.20 0.63 120.15 4.85 269.9 303 -40.3 40.3
Velocity Ratios
KLB BAL
KLB 1.74 1.65
0.01 0.12
BAL 1.65 1.72
0.12 0.01