20 JAN 2007 ( 20)
ot = 11:56:54.33 +/- 1.05 SOUTH KOREA
lat = 37.643 +/- 17.0
lon = 128.472 +/- 8.2 MAGNITUDE 4.4 (GS)
dep = 10.0 (geophysicist)
90 km (55 miles) NE of Chungju, South Korea (pop 205,000)
115 km (70 miles) NNW of Andong, South Korea (pop 188,000)
130 km (80 miles) E of SEOUL, South Korea (pop 10.22 mil)
170 km (105 miles) NNE of Taejon, South Korea
nph = 16 of 18 se = 1.38 FE=231 B
error ellipse = (172.4, 0.0, 22.5; 82.4, 0.0, 10.5; 0.0, 0.0, 0.0)
mb = 4.4 ( 7) ML = 4.6 ( 1) mblg = 3.5 ( 5) md = 4.9 ( 1) MS = 0.0 ( 0)
sta phase arrival res dist azm amp per mag amp per mag sta
INCN ePn 11:57:20.45 -0.4 1.5 264 d:4.2+2 4.9 L:1.9+1 .75 4.6 INCN
eSn 11:57:42.98 S res = 2.8X g:1.2+1 .75 5.1X
MDJ ePn 11:58:36.58 -0.5 7.0 7 d:4.1+2 7.1X L:2.4-1 1.1 4.6X MDJ
eSn 11:59:53.21 S res = -3.7X g:2.0-1 1.0 4.0 b:2.7+1 .60 5.6X
MAJO ePn 11:58:47.84 -0.8 7.9 95 d:1.2+2 6.3X L:3.8-2 .55 3.9X MAJO
g:1.7-2 .65 3.2 b:2.0+1 .55 5.5X
ERM ePn 11:59:48.52 1.8 12.1 64 g:4.0-2 1.0 3.7 b:2.5+1 .65 5.6X ERM
YSS ePn 12:00:14.82 1.3 14.1 44 g:1.8-2 .90 3.5 b:3.7+1 1.2 5.0X YSS
ULN eP 12:01:14.46 1.6 18.7 310 g:5.9-3 1.1 3.1 b:5.9+0 1.1 3.7 ULN
MA2 eP 12:02:27.32 -1.5 26.2 26 b:2.8+1 1.9 4.6 MA2
TIXI qP 12:03:36.77 -1.7 34.1 0 b:3.5+0 .90 4.3 TIXI
MK31 eP 12:03:46.34 -0.2 35.0 300 MK31
BILL eP 12:04:01.74 -1.2 36.9 23 b:7.1+0 1.1 4.3 BILL
AML eP 12:04:44.76 1.3 41.7 294 AML
BRVK eP 12:04:49.17 -0.3 42.5 311 b:1.8+0 .58 4.0 BRVK
COLA eP 12:06:20.15 1.7 54.0 32 b:7.1+0 .90 4.7 COLA
INK eP 12:06:48.74 -1.0 58.4 26 b:5.6+1 .80 5.7X INK
RES qP 12:07:30.93 1.3 64.3 12 b:1.1+2 .95 6.0X RES
FCC qP 12:08:49.16 -1.3 77.6 21 b:4.5+0 .95 4.5 FCC
Generated 2007 JAN 20 at 20:38 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
