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Earthquake Activity


Phase Data

Explanation of Parameters

     28 JUN 2004  (180)

     ot  = 06:10:51.59   +/-   0.53              ILLINOIS
     lat =      41.438   +/-    5.5
     lon =     -88.959   +/-    5.3              MAGNITUDE 4.5 (GS)
     dep =         5.0  (geophysicist)

     15 km (10 miles) NW of Ottawa, Illinois (pop 18,000)
     60 km (40 miles) SE of Dixon, Illinois (pop 15,000)
     120 km (75 miles) WSW of Chicago, Illinois (pop 2,896,000)
     190 km (120 miles) NNE of SPRINGFIELD, Illinois

     mbLg 4.5 (GS). Felt (V) at Earlville, Oglesby, Ottawa and Tonica;
     (IV) at Chillicothe, Dalzell, Frankfort, Granville, Hinckley,
     Hinsdale, Ladd, La Salle, Lockport, Marseilles, Mendota, Monee,
     Paw Paw, Peru, Princeton, Rock Island, Seneca, Sheridan, Somonauk,
     Sterling, Streator, Sublette and Utica. Also felt (IV) at
     Milwaukee, Wisconsin. Felt in Illinois, Indiana, Iowa, Michigan,
     Missouri and Wisconsin.

     nph =   25 of  68    se = 1.14    FE=467                            A

     error ellipse = (221.1,  0.0,  7.8;131.1,  0.0,  6.3;  0.0,  0.0,  0.0)

 mb = 4.1 (  4)  ML = 0.0 (  0)  mblg = 4.6 ( 31)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 JFWS iPc     06:11:23.76   1.0    1.8 327                                   JFWS
      eS      06:11:48.13  S res =   0.0X
 BLO  ePc     06:11:39.36   0.5    2.9 140                                   BLO
 SLM  ePn     06:11:40.71   1.4    3.0 200 g:1.3+0 .65 4.5                   SLM
      ePg     06:11:46.85  -1.6X
      eSn     06:12:16.60  S res =   1.4X
 USIN ePn     06:11:48.21   0.1    3.6 164 d:4.4+2     5.8X g:1.8+0 .85 4.6  USIN
 FVM  ePn     06:11:49.68   1.2    3.6 199                                   FVM
 WCI  ePn     06:11:51.07   0.2    3.8 147                                   WCI
 CCM  ePn     06:11:51.45   0.5    3.8 208                                   CCM
      eSn     06:12:36.98  S res =   0.9X
 AAM  ePn     06:11:54.80   0.6    4.1  76 d:5.4+2     6.2X g:1.2+0 .70 4.6  AAM
 ACSO ePn     06:12:02.05  -1.0    4.7 103 g:1.9+0 1.0 4.7                   ACSO
 PVMO qPn     06:12:05.78  -2.2    5.1 187 d:3.7+2     6.2X                  PVMO
 UTMT qPn     06:12:08.32  -0.2    5.1 179 d:5.6+2     6.6X g:3.6+0 .90 5.1  UTMT
 GLAT ePn     06:12:10.59   1.0    5.2 183 d:3.1+2     6.1X                  GLAT
 HALT ePn     06:12:14.54   0.0    5.5 183                                   HALT
 GNAR ePn     06:12:15.02   0.5    5.5 189                                   GNAR
 HBAR qPn     06:12:22.79   1.5    6.0 193                                   HBAR
 KSU1 ePn     06:12:24.75  -0.4    6.3 251 d:5.1+2     7.0X                  KSU1
 MET  ePn     06:12:25.47  -0.4    6.4 187 d:2.8+2     6.5X                  MET
 PLAL ePn     06:12:25.51  -2.1    6.5 174 d:6.0+2     7.2X g:9.0-1 .75 4.7  PLAL
 ALLY ePn     06:12:30.28   0.8    6.6  85 d:4.4+2     7.0X                  ALLY
 CPCT ePn     06:12:32.49  -1.1    6.9 148                                   CPCT
 OXF  ePn     06:12:33.48  -0.2    6.9 183 g:9.0-1 .73 4.8                   OXF
 MCWV ePn     06:12:35.41  -1.6X   7.2 101 g:1.3+0 .90 4.9                   MCWV
 UALR ePn     06:12:36.37  -0.7X   7.2 203 d:6.4+2     7.5X g:1.4+0 1.0 4.9  UALR
 PWV  ePn     06:12:38.27  -1.6X   7.4 121                                   PWV
 FWV  ePn     06:12:38.38  -1.7X   7.4 119                                   FWV
 MYNC ePn     06:12:38.57  -1.7X   7.4 148 g:1.2+0 1.0 4.8                   MYNC
 ELN  P       06:12:41.05  -2.3X   7.6 121                                   ELN
 MIAR P       06:12:44.47  -1.0X   7.8 209 g:9.7-1 .80 4.9  b:5.8+0 .35 5.2X MIAR
 LRAL P       06:12:53.36  -2.4X   8.5 169 g:5.9-1 .95 4.6  b:1.3+1 .35 5.7X LRAL
 CBKS P       06:12:55.96  -1.6X   8.7 256 d:5.2+2     7.9X g:6.6-1 .95 4.7  CBKS
                                           b:4.4+1 .65 5.9X
 JSC  P       06:13:04.99  -2.4X   9.4 137                                   JSC
 CBN  P       06:13:11.56   2.8X   9.5 106 d:5.4+2     8.3X g:1.3+0 .83 5.1  CBN
                                           b:1.8+1 .35 5.9X
 BINY e       06:13:12.61   0.6X   9.7  81 g:4.8-1 .93 4.7  b:1.3+2 2.0 6.0X BINY
 WMOK P       06:13:17.34  -1.7X  10.2 232 g:3.1-1 .85 4.5  b:3.3+0 .55 5.0X WMOK
 COW  P       06:13:17.89  -3.2X  10.4 138                                   COW
 PTN  P       06:13:23.75  -1.7X  10.7  68                                   PTN
 MSNY e       06:13:24.57  -3.4X  10.9  66                                   MSNY
 RGRS P       06:13:26.40  -3.3X  11.0 138                                   RGRS
 NCB  P       06:13:27.82  -3.6X  11.1  72 g:4.6-1 .78 4.8  b:2.7+0 .55 4.8X NCB
 PAL  P       06:13:34.13  -0.2X  11.3  87 g:2.9-1 .75 4.6  b:9.3+0 .75 5.2X PAL
 ACCN P       06:13:34.37  -1.7X  11.5  75                                   ACCN
 RSSD P       06:13:35.29   0.0X  11.4 289 g:2.5-1 .90 4.5  b:6.4+0 .40 5.3X RSSD
 QUA2 P       06:13:47.25  -1.6X  12.4  81 g:4.4-1 .80 4.9  b:2.2+1 .55 5.6X QUA2
 HNH  P       06:13:50.13   0.1X  12.5  74 g:3.2-2 .98 3.6  b:2.3+0 .73 4.5X HNH
 ISCO P       06:13:51.54  -2.4X  12.8 268 g:2.4-1 1.0 4.5  b:4.2+0 .50 4.9X ISCO
 BRYW P       06:13:55.96  -1.4X  13.0  82 g:3.6-2 .95 3.7  b:1.3+1 .60 5.3X BRYW
 WES  P       06:13:58.39  -0.9X  13.2  80 g:2.1-2 .73 3.6  b:1.1+1 .65 5.2X WES
 SDCO e       06:13:58.50  -2.5X  13.3 259 g:2.1-1 1.0 4.5  b:1.4+2 1.7 5.8X SDCO
 HRV  P       06:14:02.60   5.8X  13.0  80 g:1.5-2 .75 3.4X b:9.0+0 .55 5.2X HRV
 JCT  P       06:14:06.36  -4.4X  14.0 222 g:2.1-1 .78 4.6  b:1.0+0 1.8 3.3X JCT
 ANMO P       06:14:24.89  -2.2X  15.2 250 g:5.9-2 1.0 4.0  b:1.5+0 .28 3.9  ANMO
 PV01 P       06:14:28.23  -1.9X  15.4 264                                   PV01
 PV10 P       06:14:32.93  -0.8X  15.7 265                                   PV10
 EMMW eP      06:14:35.49  -2.3X  16.0  71 g:1.5-1 .62 4.7  b:1.4+2 .62 5.3X EMMW
 MNTX ePn     06:14:38.87  -3.2X  16.4 239 g:6.9-2 .95 4.2  b:1.2+1 .74 4.1  MNTX
 YMR  eP      06:14:42.56   0.0X  16.4 289                                   YMR
 LTX  ePn     06:14:47.08  -3.0X  17.0 229 g:9.8-2 1.0 4.3  b:1.3+1 .73 4.2  LTX
 QLMT eP      06:14:47.48   0.6X  16.7 289                                   QLMT
 DAU  ePn     06:14:47.79  -1.1X  16.9 274                                   DAU
 HRY  eP      06:14:51.02  -2.1X  17.2 295                                   HRY
 MCMT eP      06:14:59.30  -0.3   17.7 289                                   MCMT
 BGU  eP      06:15:02.85  -1.2   18.1 276                                   BGU
 CHMT eP      06:15:03.69  -1.8   18.2 296                                   CHMT
 DUG  eP      06:15:05.24   1.5   18.1 274 g:1.4-2 .85 3.6  b:1.3+1 .79 4.1  DUG



 Generated 2004 JUN 28 at 16:03 UTC

 

First Government graphic