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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     14 APR 2009  (104)

     ot  = 18:02:48.64   +/-   0.83              MINDANAO, PHILIPPINES           
     lat =       6.063   +/-    4.8
     lon =     125.604   +/-    7.8              MAGNITUDE 4.4 (GS)       
     dep =        79.6   +/-    8.1   

     45 km (30 miles) E of General Santos, Mindanao, Philippines (pop 411,000)
     115 km (70 miles) S of Davao, Mindanao, Philippines (pop 1,147,000)
     200 km (125 miles) SE of Cotabato, Mindanao, Philippines
     1065 km (670 miles) SSE of MANILA, Philippines

     nph =   36 of  38    se = 0.93    FE=259                            A   

     error ellipse = (256.3, 45.7, 13.0; 67.5, 44.0, 11.8;161.8,  4.4,  6.5)

 mb = 4.4 ( 20)  ML = 0.0 (  0)  mblg = 0.0 (  0)  md = 3.7 (  1)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 DAV  ePn     18:03:07.74   0.0    1.0 359 d:1.2+2     3.7  L:2.1+1 .70 4.4X DAV 
      eSn     18:03:21.72  S res =  -0.2X  g:1.3+1 .75 5.0X
 KAPI ePn     18:05:43.11   0.1   12.5 208 g:1.6-2 .80 3.4X b:1.0+1 .40 5.0X KAPI
 KSM  ePn     18:06:32.88   4.7X  15.9 254 g:1.4-2 1.0 3.4X b:1.1+1 .80 4.0  KSM 
 SSLB ePn     18:06:56.16   0.3   18.2 346 g:1.6-2 1.0 3.6X b:1.2+1 .75 4.2  SSLB
 YHNB qP      18:07:02.09  -1.4   18.9 348                                   YHNB
 FITZ eP      18:07:55.90  -0.3   24.0 180 g:9.1-3 .63 3.8X b:9.1+0 .63 4.4  FITZ
 IPM  eP      18:08:02.52   1.6   24.5 268 g:1.3-2 .95 3.7X b:2.2+1 .60 4.8  IPM 
 PMG  eP      18:08:17.82  -0.2   26.4 125 g:6.5-3 .75 3.6X b:6.3+0 .70 4.3  PMG 
 COEN eP      18:08:18.29  -0.1   26.5 139 g:7.4-2 .75 4.7X b:5.6+1 .55 5.3  COEN
 WRAB eP      18:08:24.66  -0.7   27.2 162 g:1.3-2 .95 3.8X b:8.9+0 .60 4.5  WRAB
 MBWA eP      18:08:28.04  -1.1   27.7 192                                   MBWA
 CM31 qP      18:08:40.02   0.9   28.8 298                                   CM31
 CHTO eP      18:08:40.72   0.4   28.9 298 g:4.4-3 .80 3.5X b:4.4+0 .80 4.1  CHTO
 AS31 eP      18:08:55.36  -0.3   30.6 165                                   AS31
 CTAO eP      18:09:17.05   0.8   33.0 142 b:4.0+0 .59 4.4                   CTAO
 NWAO eP      18:10:12.21   0.0   39.6 191 b:3.4+1 1.1 5.2                   NWAO
 BBOO eP      18:10:15.32   0.3   39.9 166 b:6.4+2 .45 6.8X                  BBOO
 STKA eP      18:10:22.02   0.5   40.7 159 b:8.1+0 .78 4.6                   STKA
 MK31 eP      18:12:11.62  -0.3   55.0 325                                   MK31
 AAK  qP      18:12:32.69   0.0   57.9 317                                   AAK 
 EKS2 eP      18:12:36.97   0.9   58.4 317 b:2.4+0 .93 4.3                   EKS2
 KURK eP      18:12:40.35  -0.9   59.2 327 b:4.3+0 .75 4.7                   KURK
 KBL  qP      18:12:41.78  -0.4   59.2 307                                   KBL 
 KKAR eP      18:12:52.39   0.0   60.8 317 b:1.5+0 .65 4.2                   KKAR
 BRVK eP      18:13:18.95  -0.2   64.8 327 b:2.1+0 .55 4.3                   BRVK
 URZ  eP      18:13:20.43   0.0   65.0 137                                   URZ 
 ABKAReP      18:13:48.88  -0.7   69.6 320                                   ABKA
 KDAK eP      18:14:53.36   1.3   80.5  33                                   KDAK
 COLA qP      18:15:02.90  -2.4   83.1  25                                   COLA
 MCK  eP      18:15:03.52   0.7   82.6  27 b:9.1+0 .96 4.7                   MCK 
 SML  eP      18:15:05.86   1.7   82.8  29 b:3.1+0 .91 4.2                   SML 
 BMRM eP      18:15:14.68   1.2   84.6  29 b:9.7+0 .92 4.8                   BMRM
 VNDA eP      18:15:18.80  -0.3   85.9 173 b:6.8+0 1.3 4.5                   VNDA
 SUW  qP      18:15:48.38  -2.0   92.4 325                                   SUW 
 RES  qP      18:16:05.43   0.1   95.7  10 b:1.4+0 .72 4.5                   RES 
 TRQA ePKPbc  18:22:23.79  -0.1  147.4 169                                   TRQA
 LCO  ePKPbc  18:22:37.14   0.4  152.5 148                                   LCO 



 Generated 2009 APR 14 at 20:32 UTC

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


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