Phase Data
21 NOV 2011 (325)
ot = 23:32:12.27 +/- 1.62 NIAS REGION, INDONESIA
lat = 1.702 +/- 14.0
lon = 97.032 +/- 13.3 MAGNITUDE 4.9 (GS)
dep = 32.3 +/- 4.4
194 km (121 miles) W of Sibolga, Sumatra, Indonesia
252 km (156 miles) W of Padangsidempuan, Sumatra, Indonesia
543 km (337 miles) WSW of KUALA LUMPUR, Malaysia
1393 km (865 miles) NW of JAKARTA, Java, Indonesia
nph = 57 of 58 se = 0.80 FE=706 A
error ellipse = (220.0, 11.0, 25.5;127.0, 14.0, 16.1;346.0, 71.0, 1.5)
mb = 4.9 ( 31) ML = 4.1 ( 12) mblg = 3.7 ( 6) md = 0.0 ( 0) MS = 0.0 ( 0)
sta phase arrival res dist azm amp per mag amp per mag sta
PSI ePn 23:32:45.96 0.2 2.1 62 L:9.2-1 .80 3.7 g:3.8-1 .90 3.8 PSI
LHMI ePn 23:33:04.33 -0.2 3.5 359 L:2.5+0 .70 4.6 g:6.4-1 .95 4.2 LHMI
BKNI ePn 23:33:15.42 0.8 4.2 109 L:1.2+0 1.2 4.5 g:2.7-1 1.0 3.9 BKNI
IPM ePn 23:33:23.60 0.5 4.9 55 L:2.7-1 1.1 4.1 g:1.4-1 1.1 3.7 IPM
KULM ePn 23:33:26.75 0.6 5.1 45 L:2.2-1 .75 4.1 g:7.0-2 .85 3.4 KULM
MYKOMePn 23:33:51.86 1.8 6.8 89 L:7.0-2 .85 4.1 g:3.0-2 .95 3.2 MYKO
UGM ePn 23:35:58.75 -2.8 16.5 126 b:3.1+2 1.6 5.2 UGM
CM31 ePn 23:36:03.63 -1.1 16.8 6 CM31
CM01 ePn 23:36:03.73 -0.5 16.7 6 CM01
CHTO ePn 23:36:07.15 -2.0 17.1 6 b:2.1+1 1.6 4.0 CHTO
eSn 23:39:10.03 S res = -8.5
LSA eP 23:38:04.00 -0.5 28.4 349 b:1.1+1 1.0 4.5 LSA
ePP 23:39:03.43 -5.6X
ENH eP 23:38:22.92 -2.1 30.8 21 b:2.3+1 .90 5.0 ENH
BJT eP 23:40:00.88 1.0 41.9 22 b:3.8+1 .80 5.2 BJT
WB2 eP 23:40:04.50 -0.1 42.5 122 b:2.1+1 1.5 4.7 WB2
AS01 eP 23:40:15.94 -0.1 43.9 127 AS01
JNU eP 23:40:21.13 -0.2 44.5 42 b:2.2+1 1.1 4.9 JNU
KS01 eP 23:40:28.49 -0.5 45.5 35 KS01
KS15 eP 23:40:28.79 -0.3 45.5 35 KS15
AAK eP 23:40:30.07 1.3 45.5 337 b:1.1+1 1.4 4.6 AAK
MAKZ eP 23:40:38.23 -0.7 46.8 346 b:1.7+1 .70 5.1 MAKZ
ePcP 23:42:12.46 0.7
MK01 eP 23:40:38.40 0.4 46.7 346 MK01
SONA1eP 23:40:38.41 0.4 46.7 9 SONA
ePcP 23:42:12.09 0.7
MKAR eP 23:40:39.07 0.8 46.7 346 b:1.5+2 .60 6.1 MKAR
MK31 eP 23:40:39.07 0.8 46.7 346 MK31
ULN eP 23:40:39.16 0.2 46.8 9 b:6.3+0 .60 4.8 ULN
KURK eP 23:41:13.72 0.8 51.3 345 b:2.4+1 1.1 5.0 KURK
ZALV eP 23:41:26.47 0.4 53.0 351 ZALV
ZAA0 eP 23:41:26.57 0.5 53.0 351 ZAA0
RAYN eP 23:41:37.76 1.2 54.4 298 RAYN
epP 23:41:44.83 depth = -1.1
BRVK eP 23:41:46.06 0.0 55.8 341 b:7.1+0 .85 4.7 BRVK
ABKAReP 23:41:54.90 0.1 57.0 332 b:6.1+1 .75 5.7 ABKA
ARU eP 23:42:33.22 -0.4 62.7 337 b:1.2+1 1.3 4.9 ARU
KIV eP 23:42:42.15 0.5 63.8 319 b:1.0+1 1.1 4.8 KIV
YAK eP 23:42:47.87 -0.9 65.0 16 b:5.3+1 .90 5.6 YAK
BR131eP 23:43:12.62 -0.2 68.7 312 BR13
BR231eP 23:43:13.24 -3.7 69.3 312 BR23
TIXI eP 23:43:36.10 -0.6 72.7 10 b:1.2+1 .90 4.9 TIXI
TIRR eP 23:43:42.93 0.2 73.7 316 b:6.7+0 .90 4.6 TIRR
KIEV eP 23:43:47.94 -1.2 74.8 322 b:4.1+0 .70 4.5 KIEV
AKBB eP 23:43:48.82 -0.3 74.8 322 b:4.1+0 .65 4.6 AKBB
AK11 eP 23:43:48.85 -0.4 74.8 322 AK11
MLR eP 23:43:54.73 0.5 75.6 317 b:5.7+0 .80 4.6 MLR
BUR04eP 23:44:00.37 0.8 76.5 319 BUR0
BUR08eP 23:44:00.92 1.3 76.6 319 BUR0
AGG eP 23:44:01.05 -1.5 77.1 310 b:2.7+1 1.3 5.1 AGG
VTS eP 23:44:01.90 -0.1 77.0 313 b:3.9+0 1.0 4.4 VTS
LVZ eP 23:44:09.20 0.3 78.3 340 b:1.3+2 1.8 5.7 LVZ
FIA1 eP 23:44:15.23 -0.2 79.5 333 FIA1
MORC eP 23:44:28.79 0.0 81.9 320 b:1.2+1 .80 5.0 MORC
ARCESeP 23:44:29.45 0.6 82.0 340 ARCE
ARE0 eP 23:44:29.65 0.8 82.0 340 b:1.3+2 2.0 5.6 ARE0
GEA0 eP 23:44:41.62 0.3 84.3 319 GEA0
GEC2 eP 23:44:41.63 0.3 84.3 319 b:7.4+0 1.1 4.8 GEC2
Generated 2011 NOV 22 at 00:22 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
