Phase Data

Explanation of Parameters


     24 FEB 2013  ( 55)

     ot  = 16:40:22.12   +/-   0.46              SAN JUAN, ARGENTINA             
     lat =     -31.244   +/-    4.1
     lon =     -68.466   +/-    6.8              MAGNITUDE 4.7 (GS)       
     dep =        92.6   +/-    5.0   

     33 km (21 miles) NNE of San Juan, San Juan, Argentina (pop 421,000)
     114 km (71 miles) SSE of San Jose de Jachal, San Juan, Argentina (pop 10,00
     178 km (111 miles) W of Chepes, La Rioja, Argentina
     988 km (613 miles) WNW of BUENOS AIRES, D.F., Argentina

     nph =   29 of  36    se = 0.85    FE=137                            A   

     error ellipse = (267.9, 26.9, 11.3;145.7, 46.3,  6.7; 15.9, 31.4,  6.2)

 mb = 4.7 (  2)  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
 GO04 ePn     16:40:59.31   1.0    2.3 297 L:9.3+0 .47 4.7X                  GO04
 PEL  ePn     16:41:03.61   0.3    2.7 224 L:2.0+0 .40 4.3X                  PEL 
 ROC1 ePn     16:41:04.71  -0.1    2.8 231 L:2.2+0 .40 4.4X                  ROC1
 LCO  ePn     16:41:08.48   1.2    2.9 318 L:1.4+0 .60 4.3X                  LCO 
 GO02 ePn     16:41:51.03   0.4    6.1 350 L:3.3+1 .65 6.6X                  GO02
 GO06 ePn     16:42:22.71  -2.1    8.7 196 L:1.9-1 1.0 4.8X                  GO06
 LVC  ePn     16:42:24.17   0.0    8.6 357 L:2.3+1 .39 6.9X                  LVC 
 TRQA ePn     16:42:25.68   1.3    8.6 144 L:1.0-1 .87 4.5X                  TRQA
 PB04 ePn     16:42:26.66  -2.8X   9.0 350                                   PB04
 PLCA ePn     16:42:37.09  -0.6    9.6 190                                   PLCA
 PB01 ePn     16:42:43.26  -2.5   10.2 355                                   PB01
 CPUP ePn     16:42:55.48   0.0   10.9  66                                   CPUP
 PB11 ePn     16:42:59.16  -4.1X  11.5 354                                   PB11
 MNMC ePn     16:43:07.98  -3.7X  12.1 355                                   MNMC
 LPAZ ePn     16:43:45.19  -3.3X  14.9   1                                   LPAZ
 GO09 eP      16:44:50.10   0.6   20.2 187 b:1.5+1 1.0 4.3                   GO09
 QSPA eP      16:50:12.21   0.4   59.0 180 b:2.9+1 1.7 5.1X                  QSPA
 TX31 eP      16:51:17.59   0.3   68.9 327                                   TX31
 PBMO eP      16:51:27.96  -0.1   70.7 341 b:3.6+1 1.0 5.2X                  PBMO
 MSTX eP      16:51:38.60  -0.2   72.5 331 b:4.4+1 .85 5.3X                  MSTX
 ECSD eP      16:52:14.95  -0.3   78.9 340 b:3.5+1 1.2 5.1                   ECSD
 TOA0 eP      16:52:24.24   0.3   80.4  68                                   TOA0
 HLID eP      16:52:49.74   0.0   85.5 328 b:3.0+1 .90 5.3X                  HLID
 CHGR ePKPdf  16:59:47.44  -0.8  144.7  66                                   CHGR
 GAR  ePKPdf  16:59:50.17   0.4  145.6  65                                   GAR 
 AAK  ePKPbc  16:59:59.05   0.8  148.5  58                                   AAK 
 ZALV ePKPbc  17:00:01.86  -0.1  150.3  32                                   ZALV
 NRN  ePKPbc  17:00:01.99   0.3  149.8  60                                   NRN 
 ZAA0 ePKPbc  17:00:02.15   0.2  150.3  32                                   ZAA0
 MAKZ ePKPbc  17:00:07.07  -0.3  152.5  47                                   MAKZ
 MKAR ePKPbc  17:00:07.55  -0.3  152.7  47                                   MKAR
      ePKPab  17:00:19.14   0.3X
 MK31 ePKPbc  17:00:07.55  -0.2  152.7  47                                   MK31
      ePKPab  17:00:19.19   0.3X
 MK01 ePKPbc  17:00:07.74  -0.1  152.7  47                                   MK01
      ePKPab  17:00:19.28   0.3X



 Generated 2013 FEB 24 at 17:28 UTC

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