Phase Data

Explanation of Parameters


     25 JAN 2012  ( 25)

     ot  = 03:16:02.38   +/-   2.20              PHILIPPINE ISLANDS REGION       
     lat =       5.063   +/-    9.5
     lon =     127.474   +/-   15.2              MAGNITUDE 4.7 (GS)       
     dep =        48.3   +/-   10.8   

     280 km (174 miles) ESE of General Santos, Mindanao, Philippines
     303 km (188 miles) SE of Davao, Mindanao, Philippines
     1271 km (789 miles) SE of MANILA, Philippines
     2606 km (1619 miles) ENE of JAKARTA, Java, Indonesia

     nph =   19 of  19    se = 1.09    FE=248                            A   

     error ellipse = (280.0,  1.0, 23.7;189.0, 55.0, 18.4; 11.0, 34.0, 11.6)

 mb = 4.7 ( 14)  ML = 4.7 (  6)  mblg = 3.9 (  4)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 TNTI ePn     03:17:05.53   0.7    4.3 181 L:1.5+0 .80 4.7  g:1.9-1 .80 3.8  TNTI
 LUWI ePn     03:17:50.47  -1.1    7.7 218 L:2.8-1 1.2 4.9  g:1.3-1 1.2 3.9  LUWI
 MYLDMePn     03:18:09.04   0.0    8.9 271 L:9.0-2 1.2 4.7                   MYLD
 FAKI ePn     03:18:13.29   0.0    9.3 149                                   FAKI
 SBUM ePn     03:19:37.91   0.7   15.4 261 b:2.6+1 1.0 4.4                   SBUM
 KSM  ePn     03:20:00.25  -2.9   17.5 259 b:9.4+1 1.9 4.6                   KSM 
 JAGI eP      03:20:16.67  -2.5   18.9 225 b:1.3+2 1.6 4.9                   JAGI
 JOW  eP      03:20:48.32  -0.7   21.7   2 b:9.0+1 1.2 5.0                   JOW 
 WRAB eP      03:21:29.03   0.4   25.8 165 b:5.3+1 1.5 4.8                   WRAB
 WB2  eP      03:21:29.82   1.1   25.8 165 b:4.8+1 1.5 4.8                   WB2 
 BBOO eP      03:23:18.65  -1.7   38.5 168 b:3.4+1 1.3 5.0                   BBOO
 STKA eP      03:23:25.29   0.0   39.1 161 b:1.8+0 .90 3.9                   STKA
 MK31 eP      03:25:41.77  -0.8   56.9 324                                   MK31
 MKAR eP      03:25:41.94  -0.6   56.9 324 b:3.2+1 1.1 5.3                   MKAR
 MAKZ eP      03:25:44.82   0.9   57.1 324 b:4.9+0 .85 4.6                   MAKZ
 KURK eP      03:26:12.23   1.2   61.0 327 b:8.3+0 .90 4.9                   KURK
 ABKAReP      03:27:19.00   0.3   71.6 320 b:1.7+1 .60 5.2                   ABKA
 ARU  eP      03:27:34.80   0.7   74.2 327 b:1.1+1 1.4 4.6                   ARU 
 CHGN eP      03:27:48.10  -1.9   77.0  33 b:1.8+2 1.0 6.0                   CHGN



 Generated 2012 JAN 25 at 03:36 UTC

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