21 APR 2008 (112)
ot = 05:38:29.15 +/- 0.24 ILLINOIS
lat = 38.483 +/- 3.2
lon = -87.857 +/- 2.5 MAGNITUDE 4.0 (SLM)
dep = 10.0 (geophysicist)
35 km (20 miles) SE of Olney, Illinois (pop 8,600)
35 km (20 miles) SW of Vincennes, Indiana (pop 18,000)
60 km (35 miles) NNW of Evansville, Indiana (pop 121,000)
215 km (130 miles) SE of SPRINGFIELD, Illinois
MW 4.0 (SLM). Felt widely in areas of Illinois, Indiana, Kentucky
and Missouri.
nph = 95 of 137 se = 1.36 FE=489 A
error ellipse = ( 6.7, 0.0, 4.2; 96.7, 0.0, 3.2; 0.0, 0.0, 0.0)
mb = 4.0 ( 28) ML = 0.0 ( 0) mblg = 4.2 ( 50) md = 0.0 ( 0) MS = 0.0 ( 0)
sta phase arrival res dist azm amp per mag amp per mag sta
OLIL ePg 05:38:37.10 1.7 0.3 323 OLIL
eSg 05:38:40.60 S res = 1.0X
USIN ePg 05:38:39.93 0.3 0.5 164 g:1.8+0 .60 4.0X USIN
eSg 05:38:46.95 S res = 0.2X
WCI ePg 05:38:52.72 -0.5 1.3 101 g:2.7+0 .65 4.5 WCI
eSg 05:39:09.88 S res = 0.3X
SIUC ePn 05:38:52.83 -0.8 1.3 235 g:3.1+0 .82 4.4 SIUC
eSg 05:39:09.98 S res = -1.6X
BLO ePn 05:38:53.12 0.5 1.2 56 g:4.2+0 .70 4.6 BLO
eSg 05:39:10.63 S res = 1.3X
SLM ePn 05:39:02.05 0.8 1.9 275 g:3.1+0 .60 4.7X SLM
UTMT ePn 05:39:07.40 0.5 2.3 201 g:9.3+0 .65 5.2X UTMT
eSg 05:39:39.00 S res = -3.5X
WVT ePn 05:39:08.25 0.5 2.3 179 g:1.3+0 .65 4.4 WVT
eSg 05:39:39.61 S res = -5.0X
PARMOePn 05:39:08.90 1.0 2.4 220 PARM
eSg 05:39:39.64 S res = -5.3X
HDIL ePn 05:39:09.15 1.3 2.3 332 g:3.9+0 .82 4.8 HDIL
eSg 05:39:40.35 S res = -4.3X
GLAT ePn 05:39:10.28 0.6 2.5 208 GLAT
eSg 05:39:44.29 S res = -4.7X
PVMO ePn 05:39:11.10 0.8 2.5 216 d:2.5+2 3.3X g:5.1+0 .80 4.9 PVMO
eSg 05:39:47.24 S res = -3.3X
CCM ePn 05:39:14.05 1.4 2.7 262 g:2.4+0 .60 4.7X CCM
eSn 05:39:47.55 S res = 2.2X
HALT ePn 05:39:15.25 0.9 2.8 205 HALT
eSn 05:39:53.38 S res = 4.9X
GNAR ePn 05:39:17.96 0.6 3.0 215 g:2.5+1 .70 5.7X GNAR
eSg 05:40:04.03 S res = -3.0X
PLAL ePn 05:39:23.35 -0.2 3.5 183 g:1.1+0 .80 4.4 PLAL
eSg 05:40:16.36 S res = -5.1X
SWET ePn 05:39:25.73 0.6 3.6 154 SWET
eSg 05:40:24.09 S res = -0.9X
HBAR ePn 05:39:26.06 -0.1 3.7 218 HBAR
eSg 05:40:25.38 S res = -2.0X
MET ePn 05:39:27.03 0.0 3.7 207 d:2.9+2 3.4X g:3.5+0 .70 5.0 MET
eSg 05:40:26.84 S res = -2.6X
TZTN ePn 05:39:31.03 1.4 3.9 118 g:1.9+0 .63 4.8 TZTN
CPCT ePn 05:39:32.01 1.0 4.0 138 CPCT
OXF ePn 05:39:32.35 -0.3 4.2 198 g:3.6+0 .95 4.9 OXF
eSg 05:40:36.51 S res = -6.1X
ACSO ePn 05:39:33.18 0.5 4.2 64 g:1.2+0 .80 4.5 ACSO
AAM ePn 05:39:44.86 0.9 5.0 39 g:1.6+0 .82 4.8 AAM
SCIA ePn 05:39:49.29 0.4 5.3 311 SCIA
LRAL ePn 05:39:50.01 -0.8 5.5 172 LRAL
ELN ePn 05:39:55.33 0.6 5.8 100 ELN
eSg 05:41:29.36 S res = -4.7X
MIAR ePn 05:39:58.97 0.3 6.1 231 MIAR
BLA ePn 05:39:59.02 0.7 6.0 100 g:1.9+0 .83 4.9 b:4.2+1 .70 5.3X BLA
eSg 05:41:38.44 S res = -4.0X
GOGA ePn 05:40:00.79 0.2 6.2 144 GOGA
MCWV ePn 05:40:03.09 0.4 6.3 77 MCWV
VWCC ePn 05:40:03.70 0.8 6.4 99 VWCC
ALLY ePn 05:40:07.85 0.2 6.7 59 ALLY
JSC ePn 05:40:08.47 -0.1 6.8 126 JSC
eSg 05:41:58.22 S res = -8.3X
KSU1 ePn 05:40:09.34 -0.5 6.9 278 KSU1
GLMI ePn 05:40:09.56 0.8 6.8 20 GLMI
VBMS ePn 05:40:09.88 3.4X 6.6 200 VBMS
LHS ePn 05:40:10.86 -0.1 6.9 123 LHS
ERPA ePn 05:40:11.71 -0.3 7.0 56 ERPA
BRAL ePn 05:40:15.01 -3.3X 7.5 175 BRAL
COW ePn 05:40:21.15 -0.4 7.7 129 d:3.7+2 3.7X COW
eSg 05:42:28.52 S res = -8.4X
COWI qPn 05:40:21.22 0.3 7.7 353 g:2.1-1 .80 4.2 b:8.7+1 .45 6.3X COWI
eSn 05:41:48.45 S res = 0.6X
SSPA ePn 05:40:24.67 -0.7 8.0 71 SSPA
NHSC ePn 05:40:28.25 -0.3 8.2 128 NHSC
JSRW ePn 05:40:28.80 4.6X 7.9 93 JSRW
ECSD ePn 05:40:31.11 -0.3 8.4 311 ECSD
CNNC ePn 05:40:33.53 -0.4 8.6 109 CNNC
CBN ePn 05:40:34.38 5.6X 8.2 89 CBN
MVL ePn 05:40:39.45 -0.4 9.1 77 MVL
SDMD ePn 05:40:39.82 5.7X 8.6 80 SDMD
CBKS ePn 05:40:42.92 -0.4 9.3 276 CBKS
WMOK ePn 05:40:44.61 -2.0 9.5 250 WMOK
EYMN ePn 05:40:49.34 -1.0 9.8 346 EYMN
PAL ePn 05:41:06.14 -0.8 11.0 72 PAL
AGMN ePn 05:41:09.26 -2.7 11.4 332 AGMN
OGNE ePn 05:41:09.42 0.1 11.2 287 OGNE
NCB ePn 05:41:13.03 -2.2 11.6 58 NCB
AMTX ePn 05:41:13.36 -2.4 11.7 256 g:1.8+1 .95 6.3X AMTX
ePn 05:41:14.42 -1.3X
TRY ePn 05:41:13.58 -1.0 11.6 64 TRY
LONY ePn 05:41:13.81 -2.0 11.7 54 LONY
ACCN ePn 05:41:15.00 -2.4 11.8 61 ACCN
FRNY ePn 05:41:23.52 -2.2 12.4 55 FRNY
JCT ePn 05:41:27.19 -2.3 12.7 235 JCT
RSSD ePn 05:41:37.87 -1.6 13.4 300 g:2.0-1 .95 4.5 b:1.9+1 .50 5.4X RSSD
LBNH ePn 05:41:40.01 2.5 13.3 59 g:2.6-1 .90 4.6 b:2.9+1 .45 5.7X LBNH
PHWY ePn 05:41:42.52 -2.6 13.8 287 g:1.6-1 .78 4.5 b:1.4+1 .45 5.1X PHWY
eSn 05:44:20.07 S res = 1.4X
ISCO ePn 05:41:43.55 -2.2 13.8 281 g:1.2-1 .78 4.4 b:1.8+0 .40 4.3X ISCO
SDCO ePn 05:41:43.99 -2.7 13.9 272 g:1.1-1 .88 4.3 b:3.4+1 1.6 4.9X SDCO
CPRX ePn 05:41:45.97 -2.9 14.1 252 g:5.5-2 .84 4.0 b:6.4+1 .94 5.4X CPRX
CLNB qPn 05:41:54.40 0.4 14.5 249 g:7.9-2 .98 4.1 b:4.2+2 1.1 6.0X CLNB
GDL2 ePn 05:41:57.30 -2.0 14.9 250 g:1.1+0 .74 5.4X GDL2
ePn 05:41:58.20 -1.1X
SMCO ePn 05:41:58.31 -2.1 14.9 279 g:1.1-1 1.0 4.3 b:1.7+1 1.6 4.3X SMCO
RWWY ePn 05:42:03.10 -0.4 15.2 288 g:2.1-1 1.0 4.6 b:1.7+1 .65 4.6 RWWY
DGMT ePn 05:42:04.90 -2.4 15.5 315 g:1.6-1 .98 4.5 b:4.2+1 .70 4.8 DGMT
ANMO qPn 05:42:06.32 0.6 15.3 262 g:7.9-2 1.0 4.1 b:4.6-1 .63 3.0X ANMO
LAO ePn 05:42:08.01 -3.6X 15.8 307 g:1.2-1 .98 4.4 b:1.4+1 .50 4.4 LAO
MNTX ePn 05:42:08.60 -3.8X 15.9 250 g:4.1-2 .90 4.0 b:9.5+0 .53 4.2 MNTX
BNM eP 05:42:15.26 4.2X 15.7 260 g:9.5-2 1.0 4.2 b:1.4+2 .94 5.1X BNM
MVCO ePn 05:42:19.37 0.3 16.4 272 g:7.6-2 1.0 4.2 b:6.2+0 .63 3.9 MVCO
LAZ eP 05:42:20.12 5.1X 16.0 261 g:3.5-2 1.1 3.8 b:7.0+2 1.8 5.5X LAZ
RLMT ePn 05:42:28.71 -1.4 17.3 299 g:4.4-2 1.2 3.9 b:8.1+3 .23 7.4X RLMT
SRU eP 05:42:34.80 -0.8 17.7 279 g:5.1-2 .94 4.1 b:2.3+1 1.8 4.0 SRU
GCMT eP 05:42:36.69 0.7 17.7 301 g:3.1-2 .90 3.9 b:8.5-1 .36 3.3 GCMT
SNOW ePn 05:42:40.01 0.7 18.0 293 g:6.2-2 1.0 4.2 b:5.2+0 .50 3.9 SNOW
IMW eP 05:42:40.51 -1.3 18.2 295 g:2.7-2 .98 3.8 b:5.9+0 .53 4.0 IMW
AHID ePn 05:42:41.13 -0.2 18.1 291 g:4.5-2 1.0 4.0 b:5.0+0 .60 3.8 AHID
LOHW eP 05:42:42.45 4.2X 17.9 294 g:4.6-2 1.1 4.0 b:5.2+0 .55 3.9 LOHW
HWUT eP 05:42:43.91 -0.6 18.4 287 g:5.3-2 .98 4.1 b:6.2+0 .68 3.9 HWUT
TMUT ePn 05:42:44.58 2.5 18.2 280 g:7.1-2 1.0 4.2 b:1.5+0 .36 3.5 TMUT
FFC eP 05:42:44.73 -4.5X 18.9 334 g:4.2-2 .90 4.1 b:8.0+0 .50 4.2 FFC
EGMT eP 05:42:48.59 2.8 18.5 308 g:7.3-2 .80 4.4 b:3.7+1 .30 5.0 EGMT
RRI2 ePn 05:42:49.67 5.5X 18.4 293 g:6.0-3 .85 3.2 b:4.1+0 .60 3.8 RRI2
BOZ eP 05:42:52.56 1.5 19.0 300 g:8.1-3 .88 3.4 b:2.0+2 1.3 5.2X BOZ
MSU eP 05:42:53.30 1.9 19.0 278 g:5.7-3 .98 3.2X b:4.2+3 .18 7.4X MSU
WUAZ eP 05:42:53.61 2.4 19.0 268 g:1.4-2 .88 3.6 b:1.4+1 .88 4.2 WUAZ
DUG eP 05:42:55.91 0.9 19.4 283 g:3.1-3 .68 3.1X b:2.6+0 .55 3.7 DUG
HRY eP 05:42:56.50 1.0 19.4 303 g:5.1-2 .98 4.2 b:5.7+1 1.1 4.7 HRY
MCMT eP 05:43:00.02 1.5 19.7 297 g:6.0-3 1.0 3.2 b:2.6+1 1.2 4.4 MCMT
M13A eP 05:43:07.05 1.2 20.4 286 g:4.3-3 .90 3.2X b:3.6+0 .78 3.8 M13A
CHMT eP 05:43:07.73 1.3 20.4 303 g:2.8-3 .96 2.9X b:2.2+0 .68 3.6 CHMT
HLID eP 05:43:10.44 1.6 20.6 293 g:3.7-3 1.0 3.0X b:2.2+0 .78 3.6 HLID
FCC eP 05:43:10.54 1.4 20.7 351 g:1.3-3 1.0 2.6X b:4.6-2 .53 2.1X FCC
SLMT eP 05:43:10.96 1.9 20.7 303 g:5.1-3 .78 3.3 b:3.8+0 .62 3.9 SLMT
SWMT eP 05:43:15.17 1.8 21.1 304 g:2.9-2 1.1 3.9 b:2.0+1 .36 4.9 SWMT
WALA eP 05:43:19.38 1.5 21.5 308 g:2.3-4 .90 1.9X b:2.3-1 .90 2.6X WALA
BSMT eP 05:43:24.84 4.8X 21.7 304 g:4.0-3 .84 3.2X b:3.4+0 .76 3.8 BSMT
EDM qP 05:43:33.23 0.2 22.9 318 EDM
WVOR e 05:43:35.67 -5.5X 23.7 289 g:3.4-2 .63 4.3 b:6.5+1 .33 5.6X WVOR
ETW eP 05:43:55.79 0.2 25.3 302 g:3.5-3 .80 3.3 b:3.5+0 .80 4.1 ETW
COLA eP 05:46:33.73 3.2X 43.3 327 b:3.9+0 .75 4.2 COLA
Generated 2008 APR 21 at 14:28 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver