Phase Data
18 SEP 2011 (261)
ot = 06:45:40.13 +/- 1.78 KEPULAUAN BATU, INDONESIA
lat = -0.955 +/- 9.9
lon = 97.839 +/- 17.7 MAGNITUDE 4.5 (GS)
dep = 28.1 +/- 7.5
280 km (174 miles) W of Padang, Sumatra, Indonesia
303 km (188 miles) SSW of Padangsidempuan, Sumatra, Indonesia
626 km (389 miles) SW of KUALA LUMPUR, Malaysia
1152 km (715 miles) WNW of JAKARTA, Java, Indonesia
nph = 20 of 20 se = 0.88 FE=273 A
error ellipse = (253.0, 17.0, 29.1;155.0, 25.0, 15.8; 14.0, 57.0, 2.3)
mb = 4.5 ( 1) ML = 3.8 ( 14) mblg = 3.0 ( 5) md = 0.0 ( 0) MS = 0.0 ( 0)
sta phase arrival res dist azm amp per mag amp per mag sta
BKNI ePn 06:46:32.49 0.5 3.4 68 L:1.3+0 .80 4.3 g:3.8-1 .90 4.0 BKNI
PSI ePn 06:46:35.21 -1.5 3.8 17 L:8.0-2 1.8 3.2 g:5.0-2 1.0 3.1 PSI
MNAI ePn 06:47:08.13 -0.8 6.1 124 L:6.2-1 .45 4.8 MNAI
eSn 06:48:13.69 S res = -4.5
LHMI ePn 06:47:09.88 -0.1 6.2 352 L:1.7-1 .95 4.3 LHMI
IPM ePn 06:47:11.35 0.5 6.3 31 L:3.0-2 1.1 3.5 g:2.0-2 1.1 2.9 IPM
MYKOMePn 06:47:15.40 0.1 6.6 66 L:4.0-2 .60 3.8 g:1.0-2 1.0 2.8 MYKO
KULM ePn 06:47:17.45 -0.8 6.8 24 L:2.0-2 1.7 3.5 KULM
KSM ePn 06:48:39.19 0.2 12.7 79 KSM
SBUM ePn 06:49:07.63 0.4 14.8 77 SBUM
DLV ePn 06:49:31.88 0.6 16.6 39 DLV
JAGI ePn 06:49:45.90 -1.1 17.9 115 b:2.0+1 .90 4.2 JAGI
CM01 eP 06:50:03.09 0.2 19.3 3 CM01
CM31 eP 06:50:03.51 0.2 19.3 3 CM31
KKM eP 06:50:05.93 -0.8 19.6 69 b:1.5+1 .70 4.4 KKM
CHTO eP 06:50:07.38 0.2 19.7 3 b:5.0+0 .85 3.8 CHTO
KAPI eP 06:50:34.56 -0.5 22.3 101 b:3.2+2 .95 5.8 KAPI
SLVN eP 06:50:41.53 -0.6 22.9 15 b:9.1+0 .80 4.3 SLVN
MBWA eP 06:51:40.81 0.2 29.3 135 b:4.2+1 1.8 4.9 MBWA
ENH eP 06:52:12.10 -0.7 33.0 19 b:1.7+1 .60 5.2 ENH
Generated 2011 SEP 18 at 07:36 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
