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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     17 APR 2009  (107)

     ot  = 15:59:56.49   +/-   0.79              KEPULAUAN SANGIHE, INDONESIA    
     lat =       4.653   +/-    7.6
     lon =     125.410   +/-    8.3              MAGNITUDE 4.8 (GS)       
     dep =       223.4   +/-    8.8   

     165 km (100 miles) S of General Santos, Mindanao, Philippines
     270 km (165 miles) S of Davao, Mindanao, Philippines
     1200 km (750 miles) SSE of MANILA, Philippines
     2385 km (1480 miles) ENE of JAKARTA, Java, Indonesia

     nph =   16 of  16    se = 0.39    FE=263                            A   

     error ellipse = (226.0, 52.0, 14.7;113.0, 16.0, 12.3; 12.0, 32.0, 10.6)

 mb = 4.8 (  8)  ML = 4.4 (  8)  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
 DAV  ePn     16:00:40.74  -0.2    2.4   3 L:2.5+0 1.0 4.2                   DAV 
 KKM  ePn     16:02:06.44   0.3    9.3 278                                   KKM 
 KAPI ePn     16:02:30.25   0.2   11.2 210                                   KAPI
 KSM  ePn     16:03:23.65   0.9   15.4 258 b:7.2+1 .70 5.2                   KSM 
 IPM  eP      16:04:52.99  -1.0   24.3 270 b:3.0+1 1.3 4.7                   IPM 
      eP      16:04:53.14  -0.8 
 MBWA eP      16:05:10.54  -0.7   26.3 192 b:6.8+1 1.7 5.1                   MBWA
 CHTO eP      16:05:39.24  -0.3   29.4 300                                   CHTO
 BBOO eP      16:06:59.73   1.6   38.6 165 b:3.2+2 .45 6.2                   BBOO
 MKAR eP      16:09:12.45   0.1   56.1 325                                   MKAR
 KBL  eP      16:09:39.47  -0.1   60.0 307 b:9.1+0 .70 4.6                   KBL 
 KURK eP      16:09:40.90  -0.3   60.3 327                                   KURK
 KKAR eP      16:09:50.92   0.0   61.7 317                                   KKAR
 SPU  eP      16:11:53.36   0.2   82.3  28                                   SPU 
 MCK  eP      16:12:01.21   0.0   83.9  26                                   MCK 
 SML  eP      16:12:02.50   0.1   84.1  28 b:3.4+0 .88 4.1                   SML 



 Generated 2009 APR 17 at 16:17 UTC

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


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