Phase Data

Explanation of Parameters


     29 JAN 2013  ( 29)

     ot  = 03:31:23.19   +/-   2.57              SOUTHERN PERU                   
     lat =     -15.545   +/-   20.6
     lon =     -72.077   +/-   32.1              MAGNITUDE 4.1 (GS)       
     dep =        99.6   +/-   19.6   

     111 km (69 miles) NNW of Arequipa, Peru (pop 710,000)
     208 km (129 miles) W of Juliaca, Peru
     219 km (136 miles) NW of Moquegua, Peru
     662 km (411 miles) SE of LIMA, Peru

     nph =   30 of  30    se = 1.26    FE=117                            B   

     error ellipse = ( 64.0,  8.0, 53.9;300.0, 74.0, 29.2;156.0, 12.0, 23.4)

 mb = 4.1 ( 10)  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
 LPAZ ePn     03:32:22.55   1.4    3.9 102                                   LPAZ
      eSn     03:33:06.40  S res =   0.4 
 MNMC ePn     03:32:26.79   0.3    4.3 147                                   MNMC
      eSn     03:33:15.80  S res =   0.3 
 PB11 ePn     03:32:33.54   0.3    4.8 152                                   PB11
      eSn     03:33:27.08  S res =  -0.5 
 NNA  ePn     03:32:47.42   0.2    5.8 307                                   NNA 
      eSn     03:33:49.78  S res =  -2.9 
 PB01 ePn     03:32:49.56   0.0    6.0 156                                   PB01
      eSn     03:33:53.96  S res =  -3.0 
 PB04 ePn     03:33:03.06  -0.2    7.0 165                                   PB04
      eSn     03:34:19.46  S res =  -1.9 
 LVC  ePn     03:33:13.01   0.8    7.6 157                                   LVC 
      eSn     03:34:33.62  S res =  -3.7 
 PB10 ePn     03:33:16.26  -1.2    8.1 170                                   PB10
      eSn     03:34:43.37  S res =  -3.5 
 GO02 ePn     03:33:41.55  -0.6    9.9 167                                   GO02
      eSn     03:35:33.42  S res =   2.4 
 LCO  ePn     03:34:29.67  -0.7   13.5 175                                   LCO 
 GO04 ePn     03:34:46.82   1.6   14.6 176                                   GO04
 OTAV ePn     03:35:14.17   0.0   16.9 338 b:4.9+0 .95 3.7                   OTAV
 CPUP eP      03:35:19.15  -0.9   17.4 130 b:3.2+0 1.0 3.5                   CPUP
 ROC1 eP      03:35:21.41   1.9   17.4 177 b:1.6+1 .90 4.3                   ROC1
 PEL  eP      03:35:24.54   3.1   17.6 176 b:2.1+1 1.0 4.3                   PEL 
 PTGA eP      03:35:31.61  -5.2   19.0  40 b:1.3+1 1.3 4.1                   PTGA
 GO05 eP      03:35:40.71  -0.5   19.4 180 b:1.1+1 1.2 4.1                   GO05
 BDFB eP      03:36:16.16  -5.3   23.2  94 b:7.3+0 1.1 3.9                   BDFB
 GO06 eP      03:36:29.18   0.8   23.9 179 b:1.2+1 .75 4.4                   GO06
 PLCA eP      03:36:38.71  -0.3   25.1 177 b:4.9+0 .90 4.0                   PLCA
 WVOR eP      03:42:36.65   1.2   71.8 326 b:5.3+0 .50 4.6                   WVOR



 Generated 2013 JAN 29 at 03:44 UTC

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