Phase Data

Explanation of Parameters


     18 MAR 2013  ( 77)

     ot  = 12:24:06.98   +/-   1.45              KEP. MENTAWAI REGION, INDONESIA 
     lat =      -2.241   +/-   12.3
     lon =     100.767   +/-   11.6              MAGNITUDE 4.7 (GS)       
     dep =        63.0   +/-    6.5   

     150 km (93 miles) SSE of Padang, Sumatra, Indonesia (pop 799,000)
     240 km (149 miles) NW of Bengkulu, Sumatra, Indonesia
     606 km (376 miles) S of KUALA LUMPUR, Malaysia
     800 km (497 miles) WNW of JAKARTA, Java, Indonesia

     nph =   35 of  53    se = 0.72    FE=274                            A   

     error ellipse = (223.0,  6.0, 24.9;334.0, 72.0,  9.6;131.0, 15.0,  7.7)

 mb = 4.7 ( 24)  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
 BKNI ePn     12:24:47.13   1.0    2.6   6                                   BKNI
 MNAI ePn     12:24:54.13   1.5    3.0 134                                   MNAI
 GSI  ePn     12:25:16.33   0.2    4.8 318                                   GSI 
 MYKOMePn     12:25:21.43   1.2    5.1  38                                   MYKO
 PSI  ePn     12:25:22.64  -0.2    5.2 339                                   PSI 
 IPM  ePn     12:25:44.08   1.5    6.7   2                                   IPM 
 KULM ePn     12:25:54.97   1.4    7.5 359                                   KULM
 SBUM ePn     12:27:02.76   2.6   12.4  68                                   SBUM
 CM01 eP      12:28:40.21  -1.0   20.6 355                                   CM01
 CHTO eP      12:28:43.55  -1.8   21.0 355 b:4.3+0 .80 3.8                   CHTO
 FAKI eP      12:30:21.94  -0.9   31.5  92 b:8.4+0 .80 4.6                   FAKI
 WRAB eP      12:31:11.25  -1.5   37.2 121 b:7.1+0 .60 4.8                   WRAB
 WB2  eP      12:31:11.71  -1.0   37.2 121                                   WB2 
      eP      12:31:11.88  -0.8 
 AS31 eP      12:31:22.97  -0.4   38.5 126 b:4.5+0 .70 4.5                   AS31
 AS01 eP      12:31:23.18  -0.5   38.5 126                                   AS01
      ePcP    12:33:35.98   0.4 
 BBOO eP      12:32:16.12   0.2   45.0 137 b:3.3+0 1.0 4.1                   BBOO
 JNU  eP      12:32:18.12  -0.1   45.2  36 b:9.8+0 .90 4.7                   JNU 
 STKA eP      12:32:43.06  -0.1   48.4 132 b:1.2+0 .60 4.1                   STKA
 GAR  eP      12:32:55.16   2.3X  49.7 329 b:9.2+0 .58 5.0                   GAR 
 ULN  eP      12:32:57.00   0.4   50.2   6 b:4.1+0 .70 4.6                   ULN 
 AAK  eP      12:33:00.21   0.6   50.6 335 b:3.2+0 .90 4.3                   AAK 
 MK01 eP      12:33:06.30   0.5X  51.4 344                                   MK01
 MK31 eP      12:33:06.60   0.6X  51.5 344 b:1.7+1 .65 5.2                   MK31
 MAKZ eP      12:33:06.87   0.1   51.6 344 b:1.1+1 .80 4.9                   MAKZ
 EIDS eP      12:33:21.34  -0.6   53.6 120 b:4.4+0 .70 4.6                   EIDS
 KURK eP      12:33:39.52   0.2   56.1 343 b:1.6+1 .80 5.1                   KURK
 ZALV eP      12:33:49.17  -0.7X  57.5 349                                   ZALV
 ZAA0 eP      12:33:50.10   0.2X  57.5 349 b:3.5+1 .95 5.4                   ZAA0
 BRVK eP      12:34:11.83  -0.1   60.7 339 b:3.0+0 .60 4.6                   BRVK
 ABKAReP      12:34:22.07   0.0   62.2 331 b:1.4+1 .80 5.1                   ABKA
 RPZ  eP      12:35:37.67   0.1   74.3 135 b:1.9+1 1.0 5.0                   RPZ 
 BKZ  eP      12:35:56.14  -0.2   77.5 130 b:1.3+1 1.0 4.8                   BKZ 
 BUR08eP      12:36:21.18   0.9   82.0 319 b:5.0+0 1.0 4.4                   BUR0
 LIT  eP      12:36:22.90  -0.1   82.5 311 b:2.0+1 1.2 5.0                   LIT 
 IM3  eP      12:37:37.53   0.2   98.3  24                                   IM3 
 LKWY ePKPpre 12:42:56.80  -3.0X 129.7  29                                   LKWY
 TX31 ePKPdf  12:43:36.07  -0.9X 144.4  38                                   TX31
      ePKPdf  12:43:36.50  -0.5X
 WHAR ePKPbc  12:43:36.87   0.0  144.9  19                                   WHAR
 W41B ePKPbc  12:43:37.15  -0.1X 145.1  19                                   W41B
 CPUP ePKPdf  12:43:37.82   0.6  144.6 215                                   CPUP
 MIAR ePKPbc  12:43:37.94   0.2  145.2  21                                   MIAR
 UALR ePKPdf  12:43:38.69   0.3X 145.4  19                                   UALR
 TZTN ePKPdf  12:43:39.09   0.3X 145.6   6                                   TZTN
 V48A ePKPdf  12:43:39.15  -0.1X 145.9  11                                   V48A
 X40A ePKPdf  12:43:39.55   1.0X 145.5  20                                   X40A
 JCT  ePKPdf  12:43:40.45   1.1X 145.8  33                                   JCT 
 PLAL ePKPdf  12:43:41.05   1.0X 146.4  13                                   PLAL
 X48A ePKPdf  12:43:43.12   1.8X 147.1  12                                   X48A
 Y49A ePKPbc  12:43:45.40  -0.1X 147.8  11                                   Y49A
 Z50A ePKPbc  12:43:47.20  -0.1X 148.5  11                                   Z50A



 Generated 2013 MAR 18 at 12:48 UTC

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