Phase Data

Explanation of Parameters


      5 OCT 2011  (278)

     ot  = 22:54:47.77   +/-   2.25              SUMBAWA REGION, INDONESIA       
     lat =      -8.794   +/-   45.1
     lon =     118.378   +/-    8.1              MAGNITUDE 4.2 (GS)       
     dep =       118.9   +/-   40.3   

     54 km (33 miles) SW of Bima, Sumbawa, Indonesia (pop 123,000)
     228 km (142 miles) WNW of Waingapu, Sumba, Indonesia
     250 km (155 miles) E of Mataram, Lombok, Indonesia
     1306 km (811 miles) ESE of JAKARTA, Java, Indonesia

     nph =   12 of  18    se = 1.11    FE=285                            C   

     error ellipse = (  5.0, 40.0, 88.0;182.0, 49.0, 30.8;273.0,  1.0, 11.1)

 mb = 4.2 (  4)  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
 MMRI ePn     22:55:45.80   0.9    3.8  88                                   MMRI
      eSn     22:56:31.79  S res =   2.6X
 JAGI ePn     22:55:48.82  -1.1    4.2 274                                   JAGI
      eSn     22:56:36.63  S res =  -1.5X
 SOEI ePn     22:56:13.02   0.1    5.9 100                                   SOEI
      eSn     22:57:19.51  S res =   0.3X
 UGM  ePn     22:56:38.39  -0.6    7.8 276                                   UGM 
      eSn     22:58:02.28  S res =  -3.6X
 MBWA ePn     22:57:39.61  -0.1   12.4 174                                   MBWA
      eSn     22:59:47.04  S res =  -8.9X
 MTN  ePn     22:57:48.40  -1.8   13.2 109                                   MTN 
      eSn     23:00:04.97  S res = -10.3X
 WB2  eP      22:58:59.37  -1.1   19.0 127                                   WB2 
      eP      22:59:01.04   0.6 
 AS01 eP      22:59:19.98  -1.9   21.0 137                                   AS01
 AS31 eP      22:59:22.27   0.7   21.0 137 b:1.3+0 .50 3.5                   AS31
 FORT eP      22:59:48.93   0.5   23.7 159 b:1.4+2 .65 5.5                   FORT
 NWAO eP      22:59:52.61   0.8   24.0 182 b:4.6+1 1.5 4.7                   NWAO



 Generated 2011 OCT  5 at 23:24 UTC

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