Phase Data
25 FEB 2013 ( 56)
ot = 03:52:34.49 +/- 1.72 NEAR EAST COAST OF HONSHU, JAPAN
lat = 37.663 +/- 9.4
lon = 141.889 +/- 12.8 MAGNITUDE 4.6 (GS)
dep = 22.2 +/- 6.0
110 km (68 miles) SE of Sendai, Honshu, Japan (pop 1,024,000)
112 km (70 miles) NE of Iwaki, Honshu, Japan (pop 354,000)
126 km (78 miles) E of Fukushima, Honshu, Japan (pop 290,000)
291 km (181 miles) NE of TOKYO, Japan
nph = 21 of 21 se = 0.85 FE=228 A
error ellipse = (105.0, 22.0, 21.4;199.0, 8.0, 14.5;308.0, 65.0, 3.8)
mb = 4.6 ( 7) ML = 3.8 ( 8) mblg = 3.4 ( 4) md = 0.0 ( 0) MS = 0.0 ( 0)
sta phase arrival res dist azm amp per mag amp per mag sta
MAJO ePn 03:53:24.31 1.6 3.1 250 L:3.5-1 .85 3.6 g:1.1-1 .85 3.4 MAJO
MJB9 ePn 03:53:24.35 1.6 3.1 250 g:1.1-1 .82 3.4 MJB9
ERM ePn 03:53:39.80 -0.8 4.5 12 L:2.3-1 1.8 3.9 ERM
eSn 03:54:29.96 S res = -1.8
INU ePn 03:53:42.48 0.6 4.5 241 L:1.3-1 2.0 3.7 g:5.0-2 .85 3.2 INU
JHJ2 ePn 03:53:48.51 2.5 4.8 201 L:1.9+0 3.3 4.9 JHJ2
eSn 03:54:37.87 S res = -3.5
USA0BePn 03:54:56.52 0.7 9.9 314 USA0
MA2 eP 03:57:33.66 -0.2 22.7 12 b:6.9+0 .70 4.3 MA2
SONA1eP 03:58:21.94 0.4 27.8 303 SONA
MK01 eP 04:00:40.55 -0.4 44.1 302 MK01
MK31 eP 04:00:41.00 0.0 44.1 302 MK31
MKAR eP 04:00:41.00 0.0 44.1 302 b:1.7+1 1.0 4.8 MKAR
MAKZ eP 04:00:42.77 0.1 44.3 302 b:1.9+0 .80 4.0 MAKZ
KURK eP 04:00:54.38 -0.3 45.8 308 b:5.8+0 .60 4.7 KURK
GAR eP 04:02:02.94 0.3 54.8 295 b:4.8+0 .58 4.7 GAR
CHGR eP 04:02:09.74 0.2 55.7 295 b:1.3+1 1.0 4.9 CHGR
WB2 eP 04:02:22.90 -0.7 57.7 188 WB2
ABKAReP 04:02:23.65 -0.4 57.8 310 ABKA
AS01 eP 04:02:47.54 -1.7 61.5 188 AS01
H17A eP 04:04:18.82 2.4 75.4 45 b:5.1+0 .90 4.6 H17A
Generated 2013 FEB 25 at 04:50 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
