Phase Data

Explanation of Parameters


     19 JAN 2013  ( 19)

     ot  = 19:20:42.50   +/-   1.44              ANTOFAGASTA, CHILE              
     lat =     -23.530   +/-    4.1
     lon =     -69.165   +/-   19.2              MAGNITUDE 4.4 (GS)       
     dep =        88.6   +/-   14.5   

     120 km (75 miles) SSW of Calama, Antofagasta, Chile (pop 126,000)
     127 km (79 miles) E of Antofagasta, Antofagasta, Chile (pop 285,000)
     192 km (119 miles) SSE of Tocopilla, Antofagasta, Chile
     1109 km (688 miles) N of SANTIAGO, Region Metropolitana, Chile

     nph =   13 of  26    se = 0.71    FE=123                            A   

     error ellipse = (270.0, 29.0, 32.7;118.0, 57.0, 18.0;  7.0, 12.0,  4.5)

 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     19:21:03.65   1.8    0.9  14                                   LVC 
      eSn     19:21:18.93  S res =   2.6X
 PB10 ePn     19:21:05.71   0.3    1.3 271                                   PB10
      eSn     19:21:22.54  S res =  -0.1X
 PB04 ePn     19:21:08.49   0.1    1.5 323                                   PB04
      eSn     19:21:28.16  S res =   0.3X
 GO02 ePn     19:21:11.12   0.4    1.7 193                                   GO02
      eSn     19:21:32.74  S res =   0.7X
 PB01 ePn     19:21:22.41   1.1    2.5 353                                   PB01
 PB11 ePn     19:21:38.19  -0.5    3.8 353                                   PB11
 GO03 ePn     19:21:42.09  -1.7    4.2 193                                   GO03
 MNMC ePn     19:21:46.60  -0.6    4.4 355                                   MNMC
 LCO  ePn     19:22:00.59  -3.4X   5.6 194                                   LCO 
      eSn     19:23:00.23  S res =  -7.2X
 GO04 ePn     19:22:15.85  -3.7X   6.8 192                                   GO04
      eSn     19:23:27.62  S res =  -7.8X
 LPAZ ePn     19:22:28.44   1.8X   7.3   8                                   LPAZ
 ROC1 ePn     19:22:52.29  -5.0X   9.6 189                                   ROC1
      eSn     19:24:34.22  S res =  -8.8X
 PEL  ePn     19:22:54.01  -4.8X   9.7 188                                   PEL 
 CPUP ePn     19:23:16.50  -1.7   11.1 107                                   CPUP
 GO06 ePn     19:24:21.35  -2.6   16.1 186 b:1.4+1 .80 4.2                   GO06
 PLCA ePn     19:24:37.07   0.0   17.2 184 b:5.5+0 .70 3.9                   PLCA
 GO07 eP      19:25:11.66   5.0X  19.9 190 b:1.1+2 .85 5.2                   GO07
 BDFB eP      19:25:23.02  -0.3   21.4  72 b:1.6+1 .54 4.6                   BDFB
 QSPA eP      19:31:24.10   0.4   66.7 180 b:6.1+0 .55 4.7                   QSPA



 Generated 2013 JAN 19 at 20:10 UTC

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