Phase Data
10 SEP 2012 (254)
ot = 23:14:31.13 +/- 1.69 NIAS REGION, INDONESIA
lat = 0.522 +/- 12.1
lon = 98.457 +/- 11.2 MAGNITUDE 4.8 (GS)
dep = 52.7 +/- 2.6
131 km (81 miles) SW of Padangsidempuan, Sumatra, Indonesia (pop 178,000)
140 km (87 miles) SSW of Sibolga, Sumatra, Indonesia (pop 90,000)
464 km (288 miles) SW of KUALA LUMPUR, Malaysia
1188 km (738 miles) NW of JAKARTA, Java, Indonesia
nph = 42 of 43 se = 0.84 FE=706 A
error ellipse = (219.0, 4.0, 21.1;129.0, 6.0, 14.0;348.0, 82.0, 3.3)
mb = 4.8 ( 11) ML = 4.4 ( 10) mblg = 0.0 ( 0) md = 4.3 ( 1) MS = 0.0 ( 0)
sta phase arrival res dist azm amp per mag amp per mag sta
GSI ePn 23:14:51.06 -0.2 1.2 311 d:2.3+2 4.3 L:9.8+0 .70 4.2 GSI
PSI ePn 23:15:04.66 -0.8 2.2 12 L:8.3-1 .65 3.7 PSI
BKNI ePn 23:15:11.44 0.9 2.6 94 L:5.6+0 .70 4.6 BKNI
LHMI ePn 23:15:42.91 0.4 4.9 342 L:6.5-1 1.0 4.5 LHMI
MNAI ePn 23:16:06.39 0.6 6.6 137 L:1.1+0 .55 5.2 MNAI
eSn 23:17:15.51 S res = -4.4
CM01 ePn 23:18:34.84 -0.3 17.8 2 CM01
CM31 ePn 23:18:35.62 0.0 17.8 2 CM31
CHTO eP 23:18:40.18 0.5 18.2 2 b:3.0+0 .60 3.6 CHTO
SHL eP 23:19:56.48 0.0 25.7 346 b:5.6+1 .66 5.2 SHL
NIL eP 23:22:03.94 -1.6 40.5 327 b:1.0+1 .70 4.7 NIL
AS01 eP 23:22:16.62 -1.2 42.0 127 AS01
ePcP 23:24:12.79 0.6
KS01 eP 23:22:46.34 -0.7 45.7 33 KS01
KS15 eP 23:22:46.95 -0.2 45.7 33 KS15
SONA1eP 23:23:02.73 0.5 47.6 7 SONA
MK01 eP 23:23:06.65 0.4 48.2 345 MK01
MKAR eP 23:23:07.00 0.5 48.2 345 b:8.0+1 .55 5.9 MKAR
MK31 eP 23:23:07.00 0.5 48.2 345 MK31
MAKZ eP 23:23:07.59 0.4 48.3 345 b:7.8+0 .90 4.7 MAKZ
KURK eP 23:23:40.58 -0.2 52.8 344 b:8.9+0 .80 4.8 KURK
USA0BeP 23:23:41.05 0.6 52.7 30 b:8.7+0 .85 4.8 USA0
ZALV eP 23:23:52.90 0.1 54.4 350 ZALV
ZAA0 eP 23:23:53.05 0.2 54.4 350 b:9.3+0 .75 4.9 ZAA0
DAMY eP 23:24:01.51 1.9 55.2 287 b:9.1+0 .50 5.1 DAMY
BRVK eP 23:24:13.56 -0.3 57.4 340 b:3.0+0 .55 4.6 BRVK
ABKAReP 23:24:23.10 -0.2 58.7 332 ABKA
BR131eP 23:25:40.52 -0.1 70.5 312 BR13
MLR eP 23:26:21.98 1.0 77.4 317 b:6.1+0 .90 4.6 MLR
BUR08eP 23:26:24.70 -1.6 78.4 319 BUR0
BUR04eP 23:26:26.09 -0.1 78.4 319 BUR0
GEA0 eP 23:27:07.22 0.4 86.2 319 GEA0
ARN ePKPpre 23:33:19.87 -1.5X 127.2 40 ARN
TX31 ePKPdf 23:33:58.62 -2.3 143.5 34 TX31
X48A ePKPdf 23:34:01.55 -1.3 144.8 8 X48A
JCT ePKPdf 23:34:02.04 -0.6 144.6 28 JCT
X43A ePKPdf 23:34:03.67 2.2 144.1 13 X43A
Y49A ePKPdf 23:34:04.02 0.0 145.5 7 Y49A
Y52A ePKPdf 23:34:05.37 1.0 145.7 4 Y52A
Z50A ePKPdf 23:34:06.12 0.9 146.2 7 Z50A
GRGR ePKPdf 23:34:20.01 -1.4 156.6 303 GRGR
LVC ePKPbc 23:34:29.69 1.7 154.8 208 LVC
PB01 ePKPab 23:34:49.11 -0.6 156.4 209 PB01
Generated 2012 SEP 10 at 23:37 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
