Phase Data

Explanation of Parameters


      7 FEB 2013  ( 38)

     ot  = 08:03:30.44   +/-   1.79              NIAS REGION, INDONESIA          
     lat =       0.245   +/-   10.5
     lon =      98.498   +/-   10.7              MAGNITUDE 4.9 (GS)       
     dep =        35.2   +/-    3.1   

     152 km (94 miles) SW of Padangsidempuan, Sumatra, Indonesia (pop 178,000)
     168 km (105 miles) S of Sibolga, Sumatra, Indonesia
     480 km (298 miles) SW of KUALA LUMPUR, Malaysia
     1165 km (724 miles) NW of JAKARTA, Java, Indonesia

     nph =   45 of  45    se = 0.88    FE=706                            A   

     error ellipse = (226.0,  1.0, 19.9;136.0,  2.0, 11.4;352.0, 86.0,  4.7)

 mb = 4.9 ( 21)  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
 GSI  ePn     08:03:55.57   2.1    1.4 319                                   GSI 
 BKNI ePn     08:04:10.08   0.9    2.5  88                                   BKNI
 IPM  ePn     08:04:44.07   2.3    4.9  31                                   IPM 
 LHMI ePn     08:04:47.00   1.4    5.2 343                                   LHMI
 KULM ePn     08:04:50.86   1.6    5.5  23                                   KULM
 MYKOMePn     08:04:51.07   0.3    5.6  74                                   MYKO
 MNAI ePn     08:05:02.25   0.2    6.4 136                                   MNAI
 COCO ePn     08:06:26.11   0.7   12.5 188                                   COCO
 PBKT ePn     08:07:18.38   0.3   16.4   8 b:1.2+1 .84 4.1                   PBKT
 CM01 ePn     08:07:37.71  -1.1   18.1   1                                   CM01
 CM31 ePn     08:07:40.25   1.0   18.1   1                                   CM31
 CHTO eP      08:07:43.92   0.6   18.5   1 b:5.7+0 .75 3.8                   CHTO
 BKB  eP      08:07:44.26   0.9   18.5  94 b:4.0+1 .50 4.8                   BKB 
 KKM  eP      08:07:45.88   0.9   18.6  72 b:4.6+1 .70 4.8                   KKM 
 LUWI eP      08:08:43.76  -1.2   24.3  93 b:2.1+2 1.1 5.6                   LUWI
 SHL  eP      08:08:59.82  -0.1   26.0 346 b:4.1+1 .84 5.1                   SHL 
 SOEI eP      08:09:16.29   2.3   27.5 112 b:3.4+1 .40 5.4                   SOEI
 LSA  eP      08:09:37.49   0.0   30.1 347 b:3.5+0 .75 4.2                   LSA 
 ENH  eP      08:09:49.38  -1.1   31.6  18 b:2.1+1 .60 5.2                   ENH 
 SAUI eP      08:10:08.85   0.2   33.7 105 b:5.8+1 .70 5.6                   SAUI
 XAN  eP      08:10:18.28  -1.4   35.0  15 b:3.6+1 .80 5.3                   XAN 
 NIL  eP      08:11:08.29  -0.4   40.8 327 b:2.4+1 .60 5.1                   NIL 
 BJT  eP      08:11:24.47   0.2   42.7  20 b:3.2+1 .80 5.1                   BJT 
 TARG eP      08:11:46.09   0.5   45.3 338 b:4.7+0 .80 4.4                   TARG
 KS15 eP      08:11:47.87  -2.0   45.9  33                                   KS15
 KS01 eP      08:11:48.09  -1.7   45.9  33                                   KS01
 SONA1eP      08:12:05.45   0.1   47.9   7                                   SONA
 MK01 eP      08:12:09.27  -0.2   48.5 345                                   MK01
 MK31 eP      08:12:09.52  -0.2   48.5 345                                   MK31
 MKAR eP      08:12:09.52  -0.2   48.5 345 b:3.6+1 .65 5.5                   MKAR
 MAKZ eP      08:12:10.42   0.0   48.6 345 b:4.8+0 .85 4.6                   MAKZ
 KKAR eP      08:12:17.38  -0.1   49.5 333                                   KKAR
 KK31 eP      08:12:17.38  -0.1   49.5 333                                   KK31
 ZALV eP      08:12:55.64  -0.4   54.7 350                                   ZALV
 ZAA0 eP      08:12:55.75  -0.3   54.7 350 b:9.9+0 .90 4.8                   ZAA0
 ABKAReP      08:13:25.27  -1.1   59.0 332                                   ABKA
 BR131eP      08:14:42.17  -1.1   70.7 312                                   BR13
 MLR  eP      08:15:23.58   0.0   77.7 317 b:9.2+0 .90 4.8                   MLR 
 BUR04eP      08:15:28.87   0.1   78.6 319                                   BUR0
 BUR08eP      08:15:29.37   0.5   78.6 319                                   BUR0
 X48A ePKPbc  08:23:02.92  -1.3  145.1   8                                   X48A
 Y49A ePKPdf  08:23:05.17  -0.8  145.8   7                                   Y49A
 HODGEePKPdf  08:23:05.82   0.0  145.7   1                                   HODG
 Y52A ePKPdf  08:23:06.80   0.5  146.0   4                                   Y52A
 152A ePKPdf  08:23:09.92   1.6  147.1   5                                   152A



 Generated 2013 FEB  7 at 08:38 UTC

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