Phase Data

Explanation of Parameters


     17 FEB 2013  ( 48)

     ot  = 11:54:04.00   +/-   0.00         ANTOFAGASTA, CHILE              
     lat =     -23.109   +/-    0.0
     lon =     -67.263   +/-    0.0              MAGNITUDE 4.5 (GUC)      
     dep =       246.8   +/-    0.0   

     156 km (97 miles) NW of San Antonio de los Cobres, Salta, Arg. (pop 4,200)
     166 km (103 miles) WSW of Abra Pampa, Jujuy, Argentina
     186 km (115 miles) ESE of Calama, Antofagasta, Chile
     1521 km (945 miles) NW of BUENOS AIRES, D.F., Argentina

     nph =   20 of  24    se = 0.00    FE=127                            held

     error ellipse = (  0.0,  0.0,  0.0;  0.0,  0.0,  0.0;  0.0,  0.0,  0.0)

 mb = 4.4 (  5)  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
 LVC  ePn     11:54:43.51   0.3    1.6 288                                   LVC 
      eS      11:55:14.15  S res =   0.1 
 PB04 ePn     11:54:55.62   1.5    2.8 286                                   PB04
      eS      11:55:35.61  S res =   2.0 
 PB01 ePn     11:54:56.44   1.0    2.9 315                                   PB01
      eS      11:55:37.22  S res =   1.1 
 GO02 ePn     11:54:56.46   0.3    3.0 226                                   GO02
      eS      11:55:36.91  S res =  -0.4 
 PB10 ePn     11:54:58.73   1.8    3.0 262                                   PB10
      eS      11:55:39.82  S res =   1.1 
 PB11 ePn     11:55:08.16   0.3    4.0 326                                   PB11
      eS      11:55:58.55  S res =  -0.1 
 MNMC ePn     11:55:14.98   0.9    4.5 331                                   MNMC
      eS      11:56:09.95  S res =   0.2 
 LCO  ePn     11:55:38.24  -2.2    6.6 207                                   LCO 
      eS      11:56:55.35  S res =  -2.3X
 LPAZ ePn     11:55:43.76   0.6    6.8 353                                   LPAZ
 GO04 ePn     11:55:51.64  -2.3    7.7 203                                   GO04
      eS      11:57:18.32  S res =  -4.1X
 PLCA eP      11:57:56.45   1.9   17.8 188 b:5.3+0 1.1 4.0                   PLCA
 BDFB eP      11:58:11.94  -2.4X  19.6  71 b:1.4+1 .70 4.6                   BDFB
 PTGA eP      11:58:51.60   0.9   23.3  19 b:4.9+0 .95 4.0                   PTGA
 RCBR eP      12:00:31.19  -0.3   34.8  65 b:1.6+1 1.1 4.5                   RCBR
 HOPE eP      12:01:07.95   3.6X  38.7 151 b:2.2+1 .80 4.8                   HOPE



 Generated 2013 FEB 17 at 12:39 UTC

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