Phase Data
Explanation of Parameters
18 APR 2008 (109)
ot = 11:55:58.00 +/- 0.00 ILLINOIS
lat = 38.440 +/- 0.0
lon = -87.890 +/- 0.0 MAGNITUDE 2.6 (GS)
dep = 11.2 +/- 0.0
35 km (25 miles) SSE of Olney, Illinois (pop 8,600)
40 km (25 miles) SW of Vincennes, Indiana (pop 18,000)
55 km (35 miles) NNW of Evansville, Indiana (pop 121,000)
215 km (135 miles) SE of SPRINGFIELD, Illinois
MD 2.6 (CERI).
nph = 13 of 26 se = 0.00 FE=489 held
error ellipse = ( 0.0, 0.0, 0.0; 0.0, 0.0, 0.0; 0.0, 0.0, 0.0)
mb = 0.0 ( 0) ML = 0.0 ( 0) mblg = 2.6 ( 9) md = 1.4 ( 4) MS = 0.0 ( 0)
sta phase arrival res dist azm amp per mag amp per mag sta
OLIL ePg 11:56:04.15 -0.6 0.3 331 d:1.2+2 2.5X OLIL
eSg 11:56:08.92 S res = -0.3X
USIN ePg 11:56:06.52 -1.4 0.5 160 d:3.7+1 1.4 USIN
eSg 11:56:13.42 S res = -1.2X
SIUC ePn 11:56:19.63 -2.1 1.3 236 d:3.5+1 1.3 g:8.8-2 .78 2.9 SIUC
eSg 11:56:36.12 S res = -2.9X
WCI ePn 11:56:20.17 -1.6 1.3 99 d:7.5+1 2.1 g:1.7-2 .70 2.2 WCI
eSg 11:56:37.15 S res = -1.9X
BLO ePn 11:56:21.80 -0.2 1.3 55 d:3.4+1 1.3 g:1.8-1 .80 3.2 BLO
eSg 11:56:38.16 S res = -1.5X
SLM ePn 11:56:29.45 -0.2 1.9 277 d:5.5+0 -0.5X g:3.3-2 .70 2.7 SLM
eSg 11:56:52.84 S res = -4.6X
FVM ePn 11:56:32.08 -0.3 2.0 258 d:1.5+2 2.7X g:6.0-2 .65 3.0 FVM
eSg 11:56:58.88 S res = -5.0X
WVT ePn 11:56:36.46 0.6 2.3 179 d:1.7+2 2.9X g:1.4-2 .75 2.4 WVT
eSg 11:57:06.55 S res = -5.6X
HDIL ePn 11:56:37.23 0.4 2.4 333 d:2.3+1 0.9X g:1.5-2 .65 2.5 HDIL
eSg 11:57:07.66 S res = -6.7X
CCM ePn 11:56:41.13 0.2 2.7 263 d:2.0+2 3.0X g:2.9-2 .70 2.8 CCM
eSg 11:57:15.61 S res = -8.1X
GLAT qPn 11:56:41.43 3.7 2.4 208 GLAT
eSg 11:57:10.67 S res = -5.6X
PLAL qPn 11:56:52.21 0.5 3.5 183 d:1.6+2 2.9X g:8.0-3 .65 2.3 PLAL
eSg 11:57:38.57 S res = -10.4X
SWET qPn 11:56:53.76 0.3 3.6 153 d:1.4+2 2.7X SWET
eSg 11:57:44.32 S res = -8.7X
Generated 2008 APR 24 at 08:28 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
