Phase Data

Explanation of Parameters


     20 FEB 2013  ( 51)

     ot  = 10:22:36.02   +/-   3.65              KEPULAUAN BARAT DAYA, INDONESIA 
     lat =      -7.457   +/-   10.1
     lon =     128.923   +/-   12.7              MAGNITUDE 4.2 (GS)       
     dep =       107.4   +/-   14.4   

     269 km (167 miles) WNW of Saumlaki, Kepulauan Tanimbar, Indonesia
     388 km (241 miles) ENE of DILI, Timor-Leste
     592 km (367 miles) NNW of DARWIN, Northern Territory, Australia
     2444 km (1517 miles) E of JAKARTA, Java, Indonesia

     nph =   19 of  25    se = 1.80    FE=280                            A   

     error ellipse = (123.0, 41.0, 26.1;313.0, 47.0, 18.1;217.0,  4.0,  9.5)

 mb = 4.2 (  8)  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
 SAUI ePn     10:23:12.65  -1.6    2.4 103                                   SAUI
      eSn     10:23:42.84  S res =  -0.7 
 SOEI ePn     10:23:52.71   1.8    5.1 243                                   SOEI
      eSn     10:24:40.02  S res =  -9.1X
 FAKI ePn     10:23:58.90   2.0    5.6  37                                   FAKI
      eSn     10:25:01.82  S res =   1.9 
 MTN  ePn     10:24:00.91   1.5    5.8 158                                   MTN 
 FITZ ePn     10:25:09.69  -1.3   11.1 197                                   FITZ
      eSn     10:27:05.87  S res =  -6.8X
 WB2  ePn     10:25:39.06  -4.0   13.5 158                                   WB2 
      ePn     10:25:41.38  -1.7 
 WRAB ePn     10:25:40.88  -2.1   13.5 158                                   WRAB
      eSn     10:28:02.68  S res =  -8.8X
 COEN ePn     10:26:08.67   0.9   15.4 116 b:1.3+1 .90 4.2                   COEN
      eSn     10:28:49.54  S res =  -8.9X
 AS31 ePn     10:26:23.88  -1.1   16.8 164 b:2.8+0 .70 3.6                   AS31
 AS01 ePn     10:26:24.72  -0.5   16.8 164                                   AS01
 CTAO eP      10:27:13.51   2.8   21.0 129 b:6.0+0 1.0 3.9                   CTAO
 MORW eP      10:27:47.66   0.5   24.7 208 b:1.3+1 .70 4.5                   MORW
 STKA eP      10:28:08.44   0.3   27.0 156 b:4.0-1 .85 3.0                   STKA
 NWAO eP      10:28:13.75   0.7   27.6 202 b:1.4+1 1.0 4.5                   NWAO
 MK01 eP      10:33:23.40  -0.4X  68.0 327                                   MK01
 MK31 eP      10:33:23.75  -0.1   68.0 327                                   MK31
 MKAR eP      10:33:23.75  -0.1   68.0 327 b:1.3+1 .45 5.1                   MKAR
 MAKZ eP      10:33:24.54  -0.5X  68.2 327 b:1.4+0 .50 4.1                   MAKZ



 Generated 2013 FEB 20 at 10:38 UTC

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