Phase Data
7 JAN 2012 ( 7)
ot = 09:14:38.27 +/- 1.20 NORTHERN SUMATRA, INDONESIA
lat = 4.588 +/- 9.8
lon = 96.505 +/- 12.6 MAGNITUDE 4.5 (GS)
dep = 50.5 +/- 9.4
97 km (60 miles) SW of Lhokseumawe, Sumatra, Indonesia (pop 154,000)
163 km (101 miles) W of Langsa, Sumatra, Indonesia
1104 km (685 miles) SSW of BANGKOK, Thailand
1651 km (1025 miles) NW of JAKARTA, Java, Indonesia
nph = 20 of 21 se = 0.59 FE=706 A
error ellipse = (259.0, 8.0, 19.7;351.0, 10.0, 14.9;132.0, 76.0, 14.1)
mb = 4.5 ( 1) ML = 4.1 ( 12) mblg = 0.0 ( 0) md = 0.0 ( 0) MS = 0.0 ( 0)
sta phase arrival res dist azm amp per mag amp per mag sta
LHMI ePn 09:14:52.81 -0.2 0.8 35 L:6.0+1 .65 4.8 LHMI
eSn 09:15:02.56 S res = -1.2
PSI ePn 09:15:25.66 1.4 3.1 128 L:1.0+0 1.5 4.1 PSI
GSI ePn 09:15:27.96 -1.3 3.4 162 L:5.3-1 1.4 3.9 GSI
KULM ePn 09:15:39.52 -0.1 4.2 80 L:2.4-1 1.1 3.8 KULM
eSn 09:16:30.48 S res = 3.1X
IPM ePn 09:15:44.07 0.0 4.5 91 L:2.5-1 1.0 4.0 IPM
BKNI ePn 09:16:07.17 -0.1 6.2 133 L:5.6-1 1.5 4.8 BKNI
CM01 ePn 09:17:53.36 -0.1 14.0 10 CM01
CM31 ePn 09:17:53.95 0.1 14.0 10 CM31
CHTO ePn 09:17:58.16 -0.4 14.3 9 CHTO
LUWI eP 09:20:14.66 0.4 26.8 101 b:5.4+1 .80 5.2 LUWI
MK01 eP 09:22:38.34 -0.7 43.8 346 MK01
MK31 eP 09:22:39.23 0.0 43.8 346 MK31
MKAR eP 09:22:39.23 0.0 43.8 346 b:7.7+0 .70 4.5 MKAR
SONA1eP 09:22:43.07 2.8 43.9 10 SONA
WB2 eP 09:22:45.97 1.0 44.5 125 b:7.8+0 .75 4.6 WB2
eP 09:22:46.22 1.3
AS01 eP 09:22:57.56 0.1 46.1 129 AS01
ZALV eP 09:23:27.57 -0.8 50.1 351 ZALV
RAYN eP 09:23:48.01 0.5 52.6 296 b:5.0+0 1.1 4.4 RAYN
Generated 2012 JAN 7 at 09:35 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
