Phase Data

Explanation of Parameters


     17 OCT 2011  (290)

     ot  = 09:54:00.18   +/-   1.94              NORTHERN SUMATRA, INDONESIA     
     lat =       5.264   +/-   15.8
     lon =      94.298   +/-   22.1              MAGNITUDE 4.8 (GS)       
     dep =        50.2   +/-    9.5   

     119 km (74 miles) WSW of Banda Aceh, Sumatra, Indonesia (pop 177,000)
     316 km (196 miles) W of Lhokseumawe, Sumatra, Indonesia
     1159 km (720 miles) SW of BANGKOK, Thailand
     1879 km (1167 miles) NW of JAKARTA, Java, Indonesia

     nph =   27 of  27    se = 0.95    FE=706                            A   

     error ellipse = (236.0,  9.0, 41.3;340.0, 55.0, 15.2;140.0, 32.0,  4.2)

 mb = 4.8 ( 12)  ML = 3.9 (  6)  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
 LHMI ePn     09:54:40.05  -0.2    2.6  91 L:2.3+0 .80 4.3                   LHMI
 KULM ePn     09:55:30.25  -0.6    6.3  90 L:4.0-2 1.4 3.7                   KULM
 IPM  ePn     09:55:37.82   1.1    6.8  96 L:5.0-2 .85 3.9                   IPM 
 CM31 ePn     09:57:15.31   1.1   13.9  19                                   CM31
 CM01 ePn     09:57:15.88   2.0   13.9  19                                   CM01
 CHTO ePn     09:57:22.08   3.3   14.2  18                                   CHTO
 PALK eSn     09:59:31.36 -10.4   13.7 279                                   PALK
 AAK  eP      10:01:40.64   0.8   41.2 338 b:4.9+0 .85 4.3                   AAK 
 MK01 eP      10:01:51.52  -0.1   42.6 348                                   MK01
 MK31 eP      10:01:52.00   0.2   42.6 348                                   MK31
 MKAR eP      10:01:52.00   0.2   42.6 348 b:1.1+2 .55 5.8                   MKAR
 MAKZ eP      10:01:52.47   0.0   42.7 348 b:2.0+1 .55 5.1                   MAKZ
 KKAR eP      10:01:56.61   0.6   43.2 334 b:3.1+1 .50 5.3                   KKAR
 SONA1eP      10:01:59.07  -1.2   43.7  12                                   SONA
      epP     10:02:11.71  depth =  -1.1 
 ULN  eP      10:02:00.32  -1.2   43.8  12 b:1.2+1 1.5 4.4                   ULN 
 WB2  eP      10:02:23.27  -0.9   46.7 124                                   WB2 
      eP      10:02:23.72  -0.5 
 WRAB eP      10:02:23.76  -0.5   46.7 124 b:3.2+1 1.6 5.0                   WRAB
 KURK eP      10:02:28.44   0.9   47.2 347                                   KURK
      epP     10:02:40.01  depth =  -0.6 
 AS31 eP      10:02:35.15  -0.6   48.2 128 b:1.4+0 .55 4.2                   AS31
 AS01 eP      10:02:36.41   0.4   48.2 128                                   AS01
 BRVK eP      10:03:01.08   0.0   51.6 342 b:6.5+0 .95 4.6                   BRVK
 ABKAReP      10:03:09.09   0.3   52.6 332 b:3.7+1 .55 5.6                   ABKA
 TIXI eP      10:05:02.30  -2.2   69.7  11 b:1.0+1 1.3 4.6                   TIXI
 MAW  ePcP    10:05:54.11   0.3   76.0 192                                   MAW 



 Generated 2011 OCT 17 at 10:31 UTC

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