Phase Data

Explanation of Parameters


     10 FEB 2010  ( 41)

     ot  = 09:59:35.14   +/-   0.00         ILLINOIS                        
     lat =      41.969   +/-    0.0
     lon =     -88.498   +/-    0.0              MAGNITUDE 3.8 (SLM)      
     dep =        10.0  (geophysicist)

     20 km (10 miles) WNW of Geneva, Illinois (pop 19,000)
     20 km (10 miles) WSW of Elgin, Illinois (pop 94,000)
     70 km (45 miles) W of Chicago, Illinois (pop 2,896,000)
     260 km (160 miles) NNE of SPRINGFIELD, Illinois
 
     Felt (IV) at Big Rock, Bristol, Cortland, Elburn, Elgin, Geneva,
     Genoa, Hampshire, Maple Park, Montgomery, Saint Charles, South
     Elgin, Sycamore, Oak Park, Palos Hills and Sugar Grove. Felt (III)
     at Davenport and Iowa City, Iowa. Widely felt in much of Illinois,
     Indiana and central and southern Wisconsin. Also felt in
     northeastern Arkansas, eastern Iowa, northwestern Kentucky,
     southern Michigan, southeastern Minnesota, eastern Missouri,
     western Ohio and northwestern Tennessee.

     nph =   70 of 119    se = 0.00    FE=467                            held

     error ellipse = (  0.0,  0.0,  0.0;  0.0,  0.0,  0.0;  0.0,  0.0,  0.0)

 mb = 3.9 (  8)  ML = 0.0 (  0)  mblg = 4.3 ( 45)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 DAIL P       09:59:37.85  -0.2    0.1  86                                   DAIL
 WCIL P       09:59:40.04   1.1    0.2 170                                   WCIL
 JFWS ePn     10:00:03.28  -0.3    1.6 307                                   JFWS
      eSn     10:00:24.49  S res =   0.2X
 SFIN ePn     10:00:07.74   0.0    1.9 146                                   SFIN
      eSn     10:00:33.12  S res =   1.4X
 BLO  ePn     10:00:24.94  -0.2    3.2 151                                   BLO 
      eSn     10:01:04.21  S res =   1.2X
 OLIL ePn     10:00:25.46  -0.6    3.2 174                                   OLIL
      eSn     10:01:05.47  S res =   0.7X
 SCIA ePn     10:00:30.55   0.7    3.5 271 g:1.8+0 .61 4.7                   SCIA
      ePg     10:00:39.15  -3.4X
      eSg     10:01:23.57  S res =  -4.6X
 AAM  ePn     10:00:30.56  -0.6    3.6  83 d:3.6+2     5.7X g:1.1+0 .65 4.5  AAM 
      ePg     10:00:38.88  -5.5X
      eSg     10:01:27.07  S res =  -4.2X
 SLM  ePn     10:00:31.39   0.6    3.6 202 g:2.0+0 .70 4.7                   SLM 
 USIN ePn     10:00:36.42  -0.7    4.0 171                                   USIN
 WCI  ePn     10:00:37.22  -0.7    4.1 155                                   WCI 
 SIUC ePn     10:00:40.52   0.1    4.3 188                                   SIUC
 SPMN ePn     10:00:41.80  -1.7    4.5 318                                   SPMN
      ePb     10:00:53.52  -0.9X
      ePg     10:00:57.52  -4.0X
      eSn     10:01:32.71  S res =  -3.3X
      eSg     10:01:54.53  S res =  -5.5X
 ACSO ePn     10:00:42.52  -1.0    4.5 111 d:4.8+2     6.3X g:1.1+0 .83 4.5  ACSO
      eSn     10:01:32.87  S res =  -3.2X
 PARMOePn     10:00:55.41  -0.1    5.4 191 d:3.6+2     6.3X                  PARM
      eSn     10:01:57.01  S res =  -0.6X
 GLAT ePn     10:00:59.63  -0.5    5.7 186 d:2.8+2     6.3X                  GLAT
      eSn     10:02:04.65  S res =  -1.2X
 HALT qPn     10:01:04.87  -0.2    6.1 186 d:3.1+2     6.5X                  HALT
      eSn     10:02:13.93  S res =  -0.8X
 GNAR ePn     10:01:04.94  -0.5    6.1 192 d:2.4+2     6.3X g:1.1+1 .84 5.7X GNAR
      eSn     10:02:13.90  S res =  -1.5X
 ALLY qPn     10:01:05.81  -1.6    6.3  90 d:2.5+1     4.3X g:9.6-2 .78 3.7  ALLY
      eSg     10:02:44.72  S res = -11.0X  b:8.7+1 .45 5.9X
 ECSD ePn     10:01:06.10  -0.9    6.2 289 d:5.8+2     7.1X g:2.5-1 .83 4.1  ECSD
      eSn     10:02:14.65  S res =  -3.5X
      eSg     10:02:47.52  S res =  -7.2X
 ERPA ePn     10:01:06.63  -1.9    6.3  86 d:3.2+2     6.6X g:7.4-1 .63 4.7  ERPA
      ePg     10:01:26.36 -10.1X
      eSn     10:02:16.76  S res =  -4.2X
      eSg     10:02:49.45  S res =  -9.0X
 EYMN ePn     10:01:06.67  -2.0    6.3 341 d:3.1+2     6.6X g:1.5-1 .80 3.9  EYMN
                                           b:2.4+1 .63 5.2X
 HBAR qPn     10:01:11.71  -0.8    6.6 195 d:3.8+2     6.9X                  HBAR
      eSn     10:02:23.09  S res =  -4.9X
 KSU1 ePn     10:01:13.57  -1.5    6.8 248 d:5.2+2     7.2X g:3.6-1 .68 4.4  KSU1
      eSn     10:02:31.50  S res =  -1.2X
      eSg     10:03:12.97  S res =  -0.7X
 TKL  ePn     10:01:19.30  -2.5    7.3 148 d:4.5+2     7.3X                  TKL 
      eSn     10:02:38.24  S res =  -6.5X
 CPCT ePn     10:01:20.19  -0.4    7.2 153                                   CPCT
      eSn     10:02:39.54  S res =  -3.0X
 BGNE ePn     10:01:21.57   0.5    7.2 269 d:5.7+2     7.5X g:8.3-1 .63 4.8  BGNE
                                           b:1.5+2 .35 6.6X
 OXF  ePn     10:01:23.43  -0.8    7.5 186 d:3.4+2     7.1X g:5.2-1 .78 4.6  OXF 
                                           b:1.2+2 .73 6.2X
 BLA  ePn     10:01:27.10  -2.1    7.8 125 d:4.4+2     7.5X g:4.9-1 .90 4.5  BLA 
      eSn     10:02:53.50  S res =  -4.5X  b:5.3+1 .50 6.0X
 UALR ePn     10:01:27.66  -0.9    7.8 204 d:4.4+2     7.5X g:6.6-1 .85 4.7  UALR
      eSn     10:02:52.66  S res =  -4.1X  b:2.8+1 .50 5.7X
 SSPA ePn     10:01:29.21  -3.5    8.1  96 d:4.2+2     7.5X g:2.0-1 .65 4.3  SSPA
      eSg     10:03:42.84  S res =  10.9X  b:1.7+1 .55 5.5X
 BRSD ePn     10:01:30.06  -1.8    8.0 291 d:4.6+2     7.6X g:4.5-1 .75 4.6  BRSD
      eSn     10:02:58.25  S res =  -4.4X  b:5.7+1 .65 5.9X
 AGMN ePn     10:01:30.38  -3.6    8.2 323 g:1.3-1 .70 4.1  b:7.8+1 .68 6.1X AGMN
      eSn     10:03:00.90  S res =  -5.7X
 TUL1 ePn     10:01:33.49  -2.0    8.3 226 d:5.8+2     7.9X g:9.3-1 1.0 4.8  TUL1
      eSn     10:03:02.71  S res =  -6.6X  b:5.8+1 .38 6.2X
 MIAR ePn     10:01:35.46  -1.7    8.4 210 g:6.3-1 1.1 4.6  b:1.4+1 .28 5.8X MIAR
      eSn     10:03:11.38  S res =  -0.8X
 KMSC ePn     10:01:40.81  -1.9    8.8 138 d:4.1+2     7.8X g:2.9-1 .80 4.4  KMSC
      eSn     10:03:16.23  S res =  -6.0X  b:2.9+1 .43 5.9X
 CBN  qPn     10:01:41.90  -7.5    9.3 110 g:5.0-1 .73 4.7  b:4.0+0 .78 4.9X CBN 
      eSn     10:03:30.97  S res =  -3.3X
 U34A ePn     10:01:42.23  -1.9    8.9 235 d:4.3+2     7.9X g:5.3-1 1.1 4.6  U34A
                                           b:1.5+2 .43 6.7X
 LRAL ePn     10:01:42.97  -2.1    9.0 172 d:4.4+2     7.9X g:1.8-1 .95 4.2  LRAL
      eSn     10:03:21.71  S res =  -4.7X  b:2.6+1 .75 5.7X
 JSRW ePn     10:01:44.32  -3.7    9.2 114 d:2.9+1     5.6X                  JSRW
      eSn     10:03:28.28  S res =  -3.5X
 BINY ePn     10:01:47.09  -2.3    9.3  84 d:4.5+2     8.0X g:2.4-1 .88 4.3  BINY
      eSn     10:03:28.45  S res =  -5.6X  b:2.7+1 .58 5.8X
 GOGA ePn     10:01:48.37  -2.6    9.4 153 d:2.4+1     5.6X g:3.5-2 1.3 3.3  GOGA
      eSn     10:03:30.22  S res =  -6.7X  b:7.7+2 2.6 6.6X
 V34A ePn     10:01:48.80  -0.7    9.3 232 d:3.1+1     5.7X g:4.9-2 .90 3.6  V34A
                                           b:5.0+1 .35 6.3X
 ULM  ePn     10:01:52.30  -2.8    9.7 331 d:5.1+2     8.3X g:1.1-1 .95 4.0  ULM 
      eSn     10:03:39.33  S res =  -5.1X  b:7.4+0 .40 5.5X
 W34A ePn     10:01:55.22  -2.1    9.9 230 d:4.4+2     8.3X g:2.6-1 .63 4.6  W34A
      eSn     10:03:45.40  S res =  -3.0X  b:1.0+2 .48 6.5X
 NCB  ePn     10:02:01.79  -6.0   10.7  74 g:1.3-1 .73 4.3                   NCB 
 ACCN ePn     10:02:09.22  -3.4   11.0  78 g:1.6-1 1.0 4.2  b:4.1+1 .45 6.1X ACCN
      eSn     10:04:06.15  S res =  -9.7X
 KSCO ePn     10:02:12.04  -2.8   11.2 259 g:9.1-2 .70 4.2  b:4.2+1 .43 6.1X KSCO
 MDV  ePn     10:02:14.00  -4.0   11.4  75 g:1.5+3 .72 8.4X b:5.3+3 .26 8.4X MDV 
 RSSD ePn     10:02:18.66  -1.9   11.6 286 g:1.0-1 .90 4.1  b:7.6+0 .50 5.3X RSSD
      eSn     10:04:26.23  S res =  -3.7X
 WHTX ePn     10:02:26.45  -3.3   12.3 219 g:5.0-2 .85 3.9  b:3.2+2 .60 6.8X WHTX
      qSn     10:04:39.02  S res =  -7.4X
 DGMT ePn     10:02:33.56  -3.9   12.8 306 g:1.4-1 1.0 4.2  b:3.1+1 .65 5.7X DGMT
      eSn     10:04:48.52  S res = -11.7X
 ABTX ePn     10:02:34.12  -3.9   12.9 227 g:1.4-1 1.1 4.2  b:1.6+1 .50 5.5X ABTX
      eSn     10:04:55.83  S res =  -5.4X
 ISCO ePn     10:02:38.35  -3.6   13.1 266 g:4.6-2 1.0 3.8  b:4.6+0 .50 4.9X ISCO
      eSn     10:05:00.99  S res =  -7.2X
 LAO  ePn     10:02:42.82  -4.3   13.5 296 g:2.3+0 1.0 5.5X b:8.3+0 .53 4.9X LAO 
 SDCO ePn     10:02:46.51  -3.5   13.7 258 g:5.7-2 .95 4.0                   SDCO
 MSTX ePn     10:02:46.59  -4.2   13.8 239 g:6.6-2 .90 4.1  b:1.1+1 .38 5.1X MSTX
 JCT  ePn     10:02:56.03  -6.2   14.6 222 g:1.5-1 .98 4.4  b:1.5+1 .53 4.8X JCT 
 FFC  ePn     10:03:06.80  -7.6   15.6 330 g:4.6-2 1.0 3.9  b:5.6+0 .50 4.1  FFC 
 RLMT ePn     10:03:07.35  -4.7   15.4 289 g:3.4-2 1.0 3.8  b:4.3+0 .81 3.8  RLMT
 BW06 ePn     10:03:10.95  -4.1   15.6 280 g:3.1-2 .85 3.8  b:1.9+0 .47 3.6  BW06
 EGMT ePn     10:03:18.04  -4.6   16.2 299 g:7.3-2 1.0 4.1  b:8.2+0 .47 4.1  EGMT
 PV01 qPn     10:03:18.69   0.4   15.8 263 g:2.3+0 1.1 5.6X                  PV01
 MNTX ePn     10:03:28.34  -3.8   16.9 238 g:1.9-2 .80 3.7  b:2.9+0 .49 3.7  MNTX
 FCC  ePn     10:03:28.37  -6.6   17.2 350 g:1.1-3 .95 2.4X                  FCC 
 SLMT ePn     10:03:48.31  -3.6   18.5 295 g:3.8-3 .82 3.1X b:3.1+0 .72 3.6  SLMT
 SWMT eP      10:03:53.49  -2.4   18.9 296 g:1.7-2 1.0 3.6  b:1.4+1 .46 4.5  SWMT
 EDM  eP      10:04:07.19  -1.4   20.1 313                                   EDM 
 WVOR eP      10:04:33.77   1.3   22.3 281 g:6.9-3 1.3 3.3X b:7.4+0 1.3 4.0  WVOR
 LBNH eSn     10:04:35.89 -12.1   12.3  74 g:1.2-1 .75 4.3                   LBNH



 Generated 2010 FEB 13 at 12:01 UTC

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver