Phase Data

Explanation of Parameters


     18 FEB 2013  ( 49)

     ot  = 12:01:48.34   +/-   0.98              NORTHERN SUMATRA, INDONESIA     
     lat =       1.901   +/-    7.8
     lon =      99.065   +/-    8.2              MAGNITUDE 4.7 (GS)       
     dep =       126.9   +/-    6.7   

     36 km (23 miles) ENE of Sibolga, Sumatra, Indonesia (pop 90,000)
     62 km (39 miles) NNW of Padangsidempuan, Sumatra, Indonesia (pop 178,000)
     324 km (201 miles) WSW of KUALA LUMPUR, Malaysia
     1240 km (770 miles) NW of JAKARTA, Java, Indonesia

     nph =   49 of  49    se = 0.48    FE=706                            A   

     error ellipse = (229.0,  5.0, 15.7;329.0, 58.0, 11.4;135.0, 30.0,  5.0)

 mb = 4.7 ( 25)  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
 PSI  ePn     12:02:09.36   0.0    0.8 350                                   PSI 
      eSn     12:02:25.26  S res =   0.0 
 GSI  ePn     12:02:17.20  -0.3    1.6 248                                   GSI 
      eSn     12:02:39.38  S res =  -0.3 
 BKNI ePn     12:02:30.09   1.4    2.5 128                                   BKNI
 LHMI ePn     12:02:46.73  -0.3    3.9 328                                   LHMI
 MNAI ePn     12:03:32.53  -0.4    7.3 148                                   MNAI
 CM01 ePn     12:05:32.89   1.4   16.4 360                                   CM01
 CM31 ePn     12:05:33.04   1.1   16.4 360                                   CM31
 CHTO ePn     12:05:36.06  -0.2   16.8 360 b:1.7+1 .90 4.3                   CHTO
 PALK eP      12:06:02.99   1.9   19.1 287 b:1.4+1 .60 4.5                   PALK
 SHL  eP      12:06:56.21   0.0   24.5 344 b:4.0+1 .78 5.0                   SHL 
 FITZ eP      12:08:08.48  -1.9   32.9 128 b:7.9+0 .80 4.5                   FITZ
      ePcP    12:10:52.46   0.1 
 WB2  eP      12:09:16.62  -1.5   40.9 124                                   WB2 
      eP      12:09:17.30  -0.8 
      ePcP    12:11:16.30  -0.3 
 WRAB eP      12:09:17.46  -0.6   40.9 124 b:4.7+1 .50 5.5                   WRAB
 AS31 eP      12:09:28.90  -1.4   42.4 129 b:1.9+0 .55 4.0                   AS31
 AS01 eP      12:09:28.99  -1.6   42.4 129                                   AS01
      ePcP    12:11:21.69   0.1 
 NRN  eP      12:09:48.02   0.6   44.5 335 b:2.8+1 .85 5.0                   NRN 
 KDJ  eP      12:09:50.52   2.3   44.6 337                                   KDJ 
 GAR  eP      12:09:53.61   0.0   45.3 328 b:2.4+1 1.1 4.8                   GAR 
 CHGR eP      12:09:55.87  -0.7   45.7 327 b:1.3+1 .78 4.7                   CHGR
 SONA1eP      12:10:00.71   0.1   46.2   7                                   SONA
 AAK  eP      12:10:01.56   1.3   46.1 335 b:8.7+0 .85 4.5                   AAK 
 MK01 eP      12:10:07.04   0.1   47.0 344                                   MK01
 MK31 eP      12:10:07.33   0.2   47.0 344                                   MK31
 MKAR eP      12:10:07.38   0.3   47.0 344 b:6.8+1 .70 5.5                   MKAR
 MAKZ eP      12:10:07.97   0.1   47.1 344 b:9.1+0 .70 4.6                   MAKZ
 KKAR eP      12:10:16.82   0.1   48.3 332                                   KKAR
 KK31 eP      12:10:16.82   0.1   48.3 332                                   KK31
 KURK eP      12:10:42.03   0.3   51.6 344 b:1.1+1 .80 4.8                   KURK
 ZALV eP      12:10:53.17   0.0   53.2 350                                   ZALV
 ZAA0 eP      12:10:53.30   0.1   53.2 350 b:1.6+1 .85 5.0                   ZAA0
 BRVK eP      12:11:15.17  -0.4   56.3 340 b:6.2+0 .50 4.8                   BRVK
 ABKAReP      12:11:25.87  -0.4   57.8 331                                   ABKA
 ARU  eP      12:12:03.06  -0.3   63.3 336 b:6.3+0 .80 4.6                   ARU 
 PEA0BeP      12:12:45.32  -1.6   70.1  33 b:3.5+1 1.0 5.1                   PEA0
 BR131eP      12:12:46.77   0.0   70.0 312                                   BR13
 PETK eP      12:12:47.11   0.2   70.1  33                                   PETK
 PET  eP      12:12:50.43   0.6   70.6  34 b:3.0+1 1.1 5.0                   PET 
 BUR08eP      12:13:31.28  -0.3   77.8 318                                   BUR0
 BUR04eP      12:13:32.32   0.8   77.7 318                                   BUR0
 RPZ  eP      12:13:35.12   0.1   78.4 135 b:6.3+0 .60 4.6                   RPZ 
 LVZ  eP      12:13:36.80  -0.1   78.8 340 b:7.9+0 1.1 4.4                   LVZ 
 THZ  eP      12:13:40.56   0.6   79.3 133 b:5.1+0 .76 4.4                   THZ 
 BKZ  eP      12:13:51.27  -0.5   81.5 130 b:1.2+1 .60 4.8                   BKZ 



 Generated 2013 FEB 18 at 12:19 UTC

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