10 MAR 2009 ( 69)
ot = 04:40:42.30 +/- 2.24 NIAS REGION, INDONESIA
lat = 1.126 +/- 11.4
lon = 97.470 +/- 12.3 MAGNITUDE 4.4 (GS)
dep = 48.2 +/- 18.9
160 km (100 miles) WSW of Sibolga, Sumatra, Indonesia (pop 71,000)
300 km (185 miles) SSW of Medan, Sumatra, Indonesia
520 km (325 miles) WSW of KUALA LUMPUR, Malaysia
1305 km (810 miles) NW of JAKARTA, Java, Indonesia
nph = 22 of 22 se = 0.83 FE=706 B
error ellipse = ( 50.3, 53.0, 35.7;156.7, 12.0, 11.9;255.1, 34.4, 10.2)
mb = 4.4 ( 15) ML = 3.9 ( 2) mblg = 3.5 ( 5) md = 0.0 ( 0) MS = 0.0 ( 0)
sta phase arrival res dist azm amp per mag amp per mag sta
IPM ePn 04:41:54.28 0.3 4.9 46 d:1.6+2 5.5X L:9.6-2 .75 3.8 IPM
g:6.1-2 .75 3.4
KULM ePn 04:41:58.20 0.4 5.2 37 d:1.7+2 5.6X L:1.1-1 .95 3.9 KULM
g:8.9-2 .95 3.5 b:8.9+1 .95 5.0X
CM31 eP 04:44:40.25 -0.1 17.3 5 b:1.3+1 .65 4.2 CM31
CHTO ePn 04:44:43.24 -1.4 17.6 5 g:7.7-3 1.0 3.3 b:4.2+0 .65 3.7 CHTO
KKM eP 04:45:03.77 -0.1 19.3 75 g:2.0-2 1.0 3.7 b:2.3+1 1.0 4.4 KKM
LSA eP 04:46:39.64 1.1 29.0 349 g:8.2-3 .95 3.7 b:6.0+0 .55 4.4 LSA
ENH qP 04:46:54.90 -1.8 31.2 20 b:1.7+1 .78 4.9 ENH
WRAB eP 04:48:26.67 -0.7 41.8 122 b:3.1+0 .76 4.1 WRAB
BJT eP 04:48:32.37 1.2 42.3 21 b:1.6+1 .65 4.9 BJT
TKM2 eP 04:49:01.47 0.4 46.0 338 b:4.9+0 .90 4.4 TKM2
AAK qP 04:49:03.23 0.7 46.2 336 AAK
EKS2 eP 04:49:05.65 0.7 46.5 336 b:2.7+0 .80 4.2 EKS2
ULN eP 04:49:11.59 0.4 47.3 9 b:2.7+0 .75 4.3 ULN
MK31 eP 04:49:12.11 0.4 47.4 346 MK31
KKAR eP 04:49:18.73 0.3 48.2 334 b:1.2+0 .60 4.1 KKAR
KURK eP 04:49:46.31 0.1 51.9 345 b:1.1+1 1.0 4.8 KURK
STKA eP 04:49:55.99 0.7 53.1 132 b:8.9-1 .97 3.8 STKA
ZAA0 eP 04:49:58.79 -0.2 53.7 351 ZAA0
BRVK eP 04:50:18.62 -0.6 56.5 341 b:3.5+0 .70 4.5 BRVK
ABKAReP 04:50:27.02 -1.0 57.7 332 b:5.4+0 .73 4.7 ABKA
KMBO qP 04:50:46.25 -0.4 60.3 268 KMBO
BUR08eP 04:52:31.51 -0.3 77.3 319 BUR0
Generated 2009 MAR 10 at 17:08 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
