Phase Data

Explanation of Parameters 


     23 JAN 2012  ( 23)

     ot  = 12:40:29.02   +/-   2.61              NORTHERN SUMATRA, INDONESIA     
     lat =       4.952   +/-   12.6
     lon =      96.284   +/-    6.0              MAGNITUDE 4.8 (GS)       
     dep =        50.3   +/-    9.0   

     99 km (62 miles) WSW of Lhokseumawe, Sumatra, Indonesia (pop 154,000)
     126 km (78 miles) ESE of Banda Aceh, Sumatra, Indonesia (pop 177,000)
     1077 km (669 miles) SSW of BANGKOK, Thailand
     1697 km (1054 miles) NW of JAKARTA, Java, Indonesia

     nph =   24 of  24    se = 1.29    FE=706                            A   

     error ellipse = (192.0,  3.0, 19.8; 96.0, 61.0, 15.4;284.0, 28.0,  4.2)

 mb = 4.8 ( 15)  ML = 4.1 ( 12)  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     12:40:42.10  -0.9    0.7  67 L:2.1+1 .80 4.3                   LHMI
 PSI  ePn     12:41:21.11   0.6    3.5 130 L:5.3-1 3.1 3.9                   PSI 
 GSI  ePn     12:41:26.10   0.4    3.8 160 L:6.8-1 1.3 4.2                   GSI 
 KULM ePn     12:41:33.25   0.5    4.4  85 L:3.3-1 1.8 4.0                   KULM
 IPM  ePn     12:41:38.10   0.0    4.8  96 L:3.5-1 1.7 4.2                   IPM 
 BKNI ePn     12:42:03.40  -0.3    6.6 134 L:7.1-1 1.8 5.0                   BKNI
 CM31 ePn     12:43:42.56   2.2   13.7  11                                   CM31
 CHTO ePn     12:43:47.22   2.1   14.0  11                                   CHTO
 PALK ePn     12:44:08.92   2.3   15.7 279 b:2.1+1 .75 4.4                   PALK
 LUWI eP      12:46:06.56  -1.1   27.1 102 b:5.0+1 .40 5.5                   LUWI
 AAK  eP      12:48:17.68   0.3   42.2 336 b:2.0+1 1.7 4.6                   AAK 
 MK31 eP      12:48:25.27  -1.5   43.4 346                                   MK31
 MKAR eP      12:48:25.27  -1.5   43.4 346 b:1.9+1 .55 5.0                   MKAR
 MAKZ eP      12:48:25.97  -1.5   43.5 346 b:2.9+0 .80 4.1                   MAKZ
 ULN  eP      12:48:30.61   1.0   43.7  11 b:4.8+0 1.0 4.2                   ULN 
 KKAR eP      12:48:33.86  -0.2   44.3 333 b:3.4+1 .55 5.3                   KKAR
 AS31 eP      12:48:51.02  -0.1   46.4 129 b:3.0+0 .90 4.2                   AS31
 KURK eP      12:49:03.90   1.4   48.0 345 b:7.3+0 1.0 4.6                   KURK
 ZAA0 eP      12:49:19.02   2.9   49.7 351 b:9.4+0 1.0 4.8                   ZAA0
 RAYN eP      12:49:34.24  -1.4   52.3 296 b:4.7+0 .55 4.7                   RAYN
 ABKAReP      12:49:44.25  -2.3   53.8 331 b:3.7+1 .80 5.5                   ABKA
 KMBO eP      12:50:26.44   0.0   59.3 266 b:7.5+0 .90 4.8                   KMBO
 ARTV eP      12:50:33.03  -0.4   60.4 315 b:4.4+1 .48 5.9                   ARTV
 MLR  eP      12:51:52.23   0.0   72.7 316 b:1.2+1 1.2 4.7                   MLR 



 Generated 2012 JAN 23 at 13:00 UTC

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