Phase Data

Explanation of Parameters


     10 FEB 2010  ( 41)

     ot  = 09:59:34.76   +/-   0.72              ILLINOIS                        
     lat =      42.029   +/-    4.3
     lon =     -88.429   +/-    4.6              MAGNITUDE 3.8 (RMT)      
     dep =        13.8   +/-    5.7   

     10 km (10 miles) W of Elgin, Illinois (pop 94,000)
     20 km (10 miles) NNW of Geneva, Illinois (pop 19,000)
     70 km (40 miles) WNW of Chicago, Illinois (pop 2,896,000)
     270 km (165 miles) NNE of SPRINGFIELD, Illinois
 
     mbLg 4.3 (GS).

     nph =   20 of  85    se = 0.76    FE=466                            A   

     error ellipse = ( 66.9, 60.0,  9.3;220.4, 27.4,  7.6;316.4, 11.5,  5.2)

 mb = 3.9 (  8)  ML = 0.0 (  0)  mblg = 4.3 ( 44)  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   0.1    0.1 128                                   DAIL
 JFWS ePn     10:00:03.28   0.5    1.6 304                                   JFWS
      eSn     10:00:24.49  S res =   1.1X
 SFIN ePn     10:00:07.74   0.6    1.9 148                                   SFIN
      eSn     10:00:33.12  S res =   1.9X
 BLO  ePn     10:00:24.94   0.3    3.2 152                                   BLO 
      eSn     10:01:04.21  S res =   1.6X
 OLIL ePn     10:00:25.46  -0.6    3.3 176                                   OLIL
      eSn     10:01:05.47  S res =   0.4X
 SCIA ePn     10:00:30.55   0.8    3.6 270 g:1.8+0 .61 4.7                   SCIA
      ePg     10:00:39.15  -4.0X
      eSg     10:01:23.57  S res =  -5.9X
 AAM  ePn     10:00:30.56   1.0    3.6  84 d:3.6+2     5.6X g:1.1+0 .65 4.5  AAM 
      ePg     10:00:38.88  -4.1X
      eSg     10:01:27.07  S res =  -2.0X
 SLM  ePn     10:00:31.39   0.4    3.7 203 g:2.0+0 .70 4.7                   SLM 
 USIN ePn     10:00:36.42  -0.6    4.1 172                                   USIN
 WCI  ePn     10:00:37.22  -0.3    4.1 156                                   WCI 
 SIUC ePn     10:00:40.52   0.1    4.4 188                                   SIUC
 SPMN ePn     10:00:41.80  -0.7    4.5 317                                   SPMN
      ePb     10:00:53.52  -0.1X
      ePg     10:00:57.52  -3.5X
      eSn     10:01:32.71  S res =  -2.0X
      eSg     10:01:54.53  S res =  -4.8X
 ACSO ePn     10:00:42.52   0.2    4.5 112 d:4.8+2     6.2X g:1.1+0 .83 4.5  ACSO
 PARMOePn     10:00:55.41  -0.2    5.5 191 d:3.6+2     6.4X                  PARM
 GNAR ePn     10:01:04.94  -0.7    6.2 192 d:2.4+2     6.3X g:1.1+1 .84 5.7X GNAR
      eSn     10:02:13.90  S res =  -2.1X
 ECSD ePn     10:01:05.67  -0.9    6.2 289 d:5.8+2     7.1X g:2.5-1 .83 4.1  ECSD
 ERPA ePn     10:01:06.36  -0.6    6.3  86 d:3.2+2     6.6X g:7.4-1 .63 4.7  ERPA
      ePg     10:01:26.36  -8.6X
      eSn     10:02:16.76  S res =  -1.8X
      eSg     10:02:49.45  S res =  -6.9X
 EYMN ePn     10:01:06.67  -0.6    6.3 341 d:3.1+2     6.6X g:1.5-1 .80 3.9  EYMN
                                           b:2.4+1 .63 5.2X
 KSU1 ePn     10:01:13.57  -1.6X   6.9 248 d:5.2+2     7.2X g:3.6-1 .68 4.4  KSU1
 GLAT P       10:01:19.19  19.0X   5.8 187 d:2.8+2     6.3X                  GLAT
 TKL  P       10:01:20.79  -0.5X   7.3 149 d:4.5+2     7.3X                  TKL 
 CPCT P       10:01:20.86   0.7X   7.2 154                                   CPCT
 HBAR P       10:01:21.59   8.9X   6.7 196 d:3.8+2     6.9X                  HBAR
 BGNE P       10:01:22.07   1.1X   7.3 268 d:5.7+2     7.5X g:8.3-1 .63 4.9  BGNE
                                           b:1.5+2 .35 6.6X
 ALLY P       10:01:24.42  18.5X   6.2  91 d:2.5+1     4.3X g:9.6-2 .78 3.7  ALLY
 HALT P       10:01:24.55  19.4X   6.2 187 d:3.1+2     6.5X                  HALT
 OXF  P       10:01:26.34   2.0X   7.5 186 d:3.4+2     7.1X g:5.2-1 .78 4.6  OXF 
                                           b:1.2+2 .73 6.2X
 BRSD P       10:01:29.70  -1.6X   8.1 291 d:4.6+2     7.6X g:4.5-1 .75 4.6  BRSD
                                           b:5.7+1 .65 6.0X
 SSPA P       10:01:30.12  -1.2X   8.1  96 d:4.2+2     7.5X g:2.0-1 .65 4.3  SSPA
                                           b:1.7+1 .55 5.5X
 UALR P       10:01:30.30   1.6X   7.9 204 d:4.4+2     7.5X g:6.6-1 .85 4.7  UALR
                                           b:2.8+1 .50 5.7X
 AGMN P       10:01:30.59  -2.3X   8.2 323 g:1.3-1 .70 4.1  b:7.8+1 .68 6.1X AGMN
 BLA  P       10:01:31.32   3.0X   7.8 125 d:4.4+2     7.5X g:4.9-1 .90 4.5  BLA 
                                           b:5.3+1 .50 6.0X
 TUL1 P       10:01:33.67  -2.1X   8.4 226 d:5.8+2     7.9X g:9.3-1 1.0 4.8  TUL1
                                           b:5.8+1 .38 6.2X
 MIAR P       10:01:36.64  -0.7X   8.5 210 g:6.3-1 1.1 4.6  b:1.4+1 .28 5.8X MIAR
 KMSC P       10:01:41.10  -1.0X   8.8 139 d:4.1+2     7.8X g:2.9-1 .80 4.4  KMSC
                                           b:2.9+1 .43 5.9X
 U34A P       10:01:42.35  -2.0X   9.0 235 d:4.3+2     7.9X g:5.3-1 1.1 4.6  U34A
                                           b:1.5+2 .43 6.6X
 LRAL P       10:01:43.07  -1.9X   9.1 172 d:4.4+2     7.9X g:1.8-1 .95 4.2  LRAL
                                           b:2.6+1 .75 5.6X
 JSRW ePn     10:01:44.32  -2.6X   9.2 115 d:2.9+1     5.6X                  JSRW
 BINY P       10:01:47.54  -0.2X   9.3  85 d:4.5+2     8.0X g:2.4-1 .88 4.3  BINY
                                           b:2.7+1 .58 5.8X
 GOGA P       10:01:49.10  -1.4X   9.5 154 d:2.4+1     5.6X g:3.5-2 1.3 3.3  GOGA
      e       10:02:22.72                  b:7.7+2 2.6 6.6X
 V34A P       10:01:51.55   1.8X   9.4 232 d:3.1+1     5.8X g:4.9-2 .90 3.7  V34A
                                           b:5.0+1 .35 6.3X
 ULM  P       10:01:53.10  -0.8X   9.7 330 d:5.1+2     8.3X g:1.1-1 .95 4.0  ULM 
                                           b:7.4+0 .40 5.4X
 W34A P       10:01:55.40  -2.2X  10.0 230 d:4.4+2     8.3X g:2.6-1 .63 4.6  W34A
                                           b:1.0+2 .48 6.5X
 NCB  ePn     10:02:01.79  -4.2X  10.6  75 g:1.3-1 .73 4.3                   NCB 
 ACCN P       10:02:09.49  -1.5X  11.0  78 g:1.6-1 1.0 4.2  b:4.1+1 .45 6.1X ACCN
 KSCO P       10:02:12.35  -2.5X  11.2 259 g:9.1-2 .70 4.2  b:4.2+1 .43 6.1X KSCO
 MDV  P       10:02:13.97  -2.3X  11.3  75 g:1.5+3 .72 8.4X b:5.3+3 .26 8.4X MDV 
 RSSD P       10:02:18.36  -1.8X  11.6 286 g:1.0-1 .90 4.1  b:7.6+0 .50 5.2X RSSD
 CBN  P       10:02:20.22  32.0X   9.3 111 g:5.0-1 .73 4.7                   CBN 
 WHTX P       10:02:28.05  -1.9X  12.3 219 g:5.0-2 .85 3.9  b:3.2+2 .60 6.7X WHTX
 DGMT P       10:02:33.84  -2.8X  12.8 305 g:1.4-1 1.0 4.2  b:3.1+1 .65 5.6X DGMT
 ABTX P       10:02:35.22  -3.0X  12.9 227 g:1.4-1 1.1 4.2  b:1.6+1 .50 5.4X ABTX
 ISCO P       10:02:38.62  -3.3X  13.2 266 g:4.6-2 1.0 3.8  b:4.6+0 .50 4.8X ISCO
 LAO  P       10:02:42.60  -4.0X  13.6 296 g:2.3+0 1.0 5.5X b:8.3+0 .53 4.9X LAO 
 SDCO ePn     10:02:46.51  -3.5X  13.8 258 g:5.7-2 .95 4.0                   SDCO
 MSTX P       10:02:48.17  -2.8X  13.9 239 g:6.6-2 .90 4.1  b:1.1+1 .38 5.1X MSTX
 JCT  ePn     10:02:56.03  -6.5X  14.7 222 g:1.5-1 .98 4.4  b:1.5+1 .53 4.7X JCT 
 FFC  ePn     10:03:06.80  -6.4X  15.5 329 g:4.6-2 1.0 3.9  b:5.6+0 .50 4.1  FFC 
 RLMT ePn     10:03:07.35  -4.3X  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  -3.8X  15.6 280 g:3.1-2 .85 3.8  b:1.9+0 .47 3.6  BW06
 EGMT ePn     10:03:18.04  -3.9X  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   0.5X  15.9 263 g:2.3+0 1.1 5.6X                  PV01
 MNTX ePn     10:03:28.34  -3.9X  17.0 238 g:1.9-2 .80 3.7  b:2.9+0 .49 3.7  MNTX
 FCC  ePn     10:03:28.37  -5.1X  17.1 350 g:1.1-3 .95 2.4X                  FCC 
 SLMT ePn     10:03:48.31  -3.0X  18.5 295 g:3.8-3 .82 3.1X b:3.1+0 .72 3.6  SLMT
 SWMT eP      10:03:53.49  -1.7X  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  -0.4   20.1 312                                   EDM 
 WVOR eP      10:04:33.77   1.8   22.3 281 g:6.9-3 1.3 3.3X b:7.4+0 1.3 4.0  WVOR



 Generated 2010 FEB 11 at 01:27 UTC

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