Phase Data

Explanation of Parameters


     18 FEB 2013  ( 49)

     ot  = 10:31:35.08   +/-   2.57              REGION METROPOLITANA, CHILE     
     lat =     -34.039   +/-    9.7
     lon =     -71.311   +/-   17.6              MAGNITUDE 4.7 (GS)       
     dep =        13.4   +/-    2.6   

     54 km (33 miles) WNW of Rancagua, Libertador O'Higgins, Chile (pop 206,000)
     57 km (36 miles) SSE of San Antonio, Valparaiso, Chile (pop 83,000)
     88 km (55 miles) SW of SANTIAGO, Region Metropolitana, Chile (pop 4,656,000
     105 km (65 miles) N of Curico, Maule, Chile (pop 93,000)

     nph =   33 of  33    se = 1.27    FE=135                            A   

     error ellipse = ( 81.0,  4.0, 27.4;172.0, 12.0, 14.8;331.0, 76.0,  0.9)

 mb = 4.7 ( 13)  ML = 0.0 (  0)  mblg = 0.0 (  0)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 ROC1 ePn     10:31:58.53   2.3    1.1  13                                   ROC1
 PEL  ePn     10:32:00.69   5.3    1.0  31                                   PEL 
 GO04 ePn     10:32:32.56  -2.1    3.9   7                                   GO04
 LCO  ePn     10:32:47.60  -3.0    5.0   6                                   LCO 
 GO06 ePn     10:32:54.80  -2.5    5.5 181                                   GO06
 PLCA ePn     10:33:12.89  -0.4    6.7 175                                   PLCA
 GO02 ePn     10:33:42.51  -2.1    9.0  10                                   GO02
 MNMC ePn     10:35:04.26  -1.8   14.9   6                                   MNMC
 LPAZ ePn     10:35:43.71  -0.8   17.9  10 b:1.3+1 .95 4.0                   LPAZ
 EFI  eP      10:36:08.33   0.4   20.1 155 b:4.2+1 1.0 4.7                   EFI 
 SNAA eP      10:40:38.66   0.0   51.3 158 b:8.1+0 1.0 4.6                   SNAA
 833A eP      10:42:30.63   0.0   67.5 333 b:1.4+1 .95 5.1                   833A
 JCT  eP      10:42:45.75   2.0   69.6 334 b:1.0+1 .95 5.0                   JCT 
 MNTX eP      10:43:02.32  -1.1   72.8 330 b:3.9+0 .95 4.5                   MNTX
 MSTX eP      10:43:08.87  -0.4   73.8 333 b:8.4+0 1.0 4.7                   MSTX
 W18A eP      10:43:31.87   0.7   77.6 329 b:3.3+0 .80 4.5                   W18A
 CCUT eP      10:43:52.27   1.3   81.3 327 b:3.0+0 1.1 4.2                   CCUT
 TOA0 eP      10:44:02.47  -1.2   83.7  70                                   TOA0
      eP      10:44:04.15   0.4 
 J08A eP      10:44:26.80   0.9   88.2 328 b:4.7+0 1.1 4.7                   J08A
 BRVK ePKPdf  10:51:15.02   0.5  146.8  44                                   BRVK
 KK31 ePKPdf  10:51:21.22   2.6  149.0  62                                   KK31
 KKAR ePKPdf  10:51:21.22   2.6  149.0  62                                   KKAR
 GAR  ePKPbc  10:51:21.95  -0.7  148.9  70                                   GAR 
 ARSB epPKPdf 10:51:26.72   0.4  151.0  66                                   ARSB
 KURK epPKPdf 10:51:28.50   0.2  152.5  44                                   KURK
      ePKPab  10:51:40.24  -0.7 
 AAK  ePKPbc  10:51:29.14  -0.8  152.0  63                                   AAK 
 ZALV epPKPdf 10:51:30.72   0.5  153.9  33                                   ZALV
 NRN  ePKPab  10:51:45.05   0.4  153.2  65                                   NRN 
 MK31 ePKPab  10:51:56.35  -1.1  156.3  50                                   MK31
 MKAR ePKPab  10:51:56.35  -1.1  156.3  50                                   MKAR
 MK01 ePKPab  10:51:56.67  -0.9  156.4  50                                   MK01



 Generated 2013 FEB 18 at 10:57 UTC

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