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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     14 JUL 2007  (195)

     ot  = 02:20:17.33   +/-   2.15              GUERRERO, MEXICO                
     lat =      16.801   +/-   21.0
     lon =     -98.193   +/-    9.7                                       
     dep =        46.8   +/-   16.8   

     120 km (75 miles) SSW of Huajuapan de Leon, Oaxaca, Mexico (pop 43,000)
     160 km (100 miles) W of Oaxaca, Oaxaca, Mexico (pop 251,000)
     160 km (100 miles) ESE of Chilpancingo, Guerrero, Mexico (pop 142,000)
     305 km (190 miles) SSE of MEXICO CITY, D.F., Mexico

     nph =   33 of  45    se = 1.17    FE=058                            B   

     error ellipse = ( 13.8, 10.7, 33.0;129.7, 66.5, 27.1;279.7, 20.7, 10.5)

 mb = 3.9 ( 19)  ML = 0.0 (  0)  mblg = 3.5 (  4)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 CMIG Pn      02:21:03.60  -1.3    3.2  84                                   CMIG
      Pg      02:21:14.32
      Lg      02:21:57.17
 TEIG ePn     02:22:40.52   2.0   10.0  69 L:3.9-2 .65 4.3X g:3.8-2 .98 3.5  TEIG
      eSn     02:24:32.90  S res =   3.5X
 TXAR Pn      02:23:25.42  -0.2   13.4 339                                   TXAR
      LR      02:29:10.58                                  
 WMOK eP      02:24:20.48  -2.1   17.9 358 b:3.4+0 .79 3.5                   WMOK
      epP     02:24:29.50
 MIAR eP      02:24:26.18   0.4   18.1  12 g:1.2-2 1.0 3.5  b:1.2+1 1.0 4.0  MIAR
 TUC  eP      02:24:37.45   0.1   19.2 326 b:1.2+0 .83 3.2                   TUC 
 ANMO eP      02:24:40.74  -0.4   19.5 339 g:4.6-3 1.2 3.0  b:4.6+0 1.2 3.6  ANMO
 PLAL eP      02:24:49.43   0.8   20.2  25 b:3.5+0 .71 3.8                   PLAL
 GOGA eP      02:24:58.47  -0.6   21.2  36 b:1.2+1 .95 4.2                   GOGA
 WVT  eP      02:25:01.18   0.7   21.3  24 b:4.3+0 .81 3.9                   WVT 
 SWET eP      02:25:01.36   0.6   21.4  29                                   SWET
 WUAZ eP      02:25:06.90  -1.2   22.0 330 b:8.9+0 .95 4.2                   WUAZ
      epP     02:25:19.25  depth =  50.6X
 SDCO eP      02:25:06.93   0.8   21.8 344 b:1.5+0 .67 3.5                   SDCO
 CPCT eP      02:25:08.95  -0.9   22.2  31                                   CPCT
 CCM  eP      02:25:09.64   1.7   22.0  15 g:1.1-2 1.1 3.5  b:1.1+1 1.1 4.2  CCM 
 MVCO eP      02:25:11.64   0.9   22.3 338 b:1.2+1 1.4 4.1                   MVCO
 TKL  P       02:25:14.18  -1.4   22.8  32                                   TKL 
 PV01 eP      02:25:19.15  -0.6   23.1 339                                   PV01
      epP     02:25:29.68  depth =  40.1X
 SMCO eP      02:25:24.84   0.6   23.6 343                                   SMCO
 ISCO eP      02:25:26.69   0.4   23.8 346 b:3.6+0 .80 3.9                   ISCO
      epP     02:25:35.61  depth =  31.7X
 SRU  eP      02:25:34.94   0.6   24.7 337                                   SRU 
 MSU  eP      02:25:36.85   1.0   24.9 333                                   MSU 
 TPNV eP      02:25:44.74   1.9   25.6 325 b:1.6+1 1.7 4.3                   TPNV
 DUG  eP      02:25:50.39  -0.5   26.5 334 b:1.9+0 .92 3.7                   DUG 
 NVAR P       02:26:02.17  -0.5   27.8 325                                   NVAR
 LOHW eP      02:26:10.33  -0.2   28.7 341 b:2.1+0 .80 3.8                   LOHW
      epP     02:26:19.74  depth =  32.8X
 MOOW eP      02:26:11.73  -0.3   28.9 341 b:1.5+0 .90 3.6                   MOOW
 TPAW eP      02:26:12.58   2.0   28.7 340 b:7.2+0 1.3 4.2                   TPAW
 DLMT eP      02:26:30.21   0.3   30.9 340 b:7.0+0 1.1 4.3                   DLMT
      epP     02:26:39.34  depth =  31.7X
 LRM  eP      02:26:32.88  -0.3   31.3 341                                   LRM 
      epP     02:26:43.42  depth =  38.4X
 KEBM eP      02:26:58.15  -0.5   34.2 325                                   KEBM
 FFC  eP      02:27:28.82  -1.5   38.0 356 b:2.5+0 .69 4.2                   FFC 
      epP     02:27:38.66  depth =  33.4X
 YKA  P       02:28:41.81  -2.4   47.1 350                                   YKA 



 Generated 2007 JUL 28 at 04:42 UTC

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

 


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