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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     23 APR 2009  (113)

     ot  = 12:16:22.35   +/-   0.97              KEPULAUAN TALAUD, INDONESIA     
     lat =       4.326   +/-    4.4
     lon =     126.738   +/-    6.7              MAGNITUDE 5.4 (GS)       
     dep =        75.2   +/-    9.7   

     260 km (165 miles) SE of General Santos, Mindanao, Philippines
     330 km (205 miles) SSE of Davao, Mindanao, Philippines
     1305 km (810 miles) SSE of MANILA, Philippines
     2505 km (1550 miles) ENE of JAKARTA, Java, Indonesia

     nph =   34 of  37    se = 0.78    FE=263                            A   

     error ellipse = (249.5, 65.3, 15.8; 67.4, 24.7,  9.4;157.8,  0.8,  5.8)

 mb = 5.4 ( 26)  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
 DAV  ePn     12:17:07.83   0.7    3.0 337 L:2.6+1 1.0 5.5X                  DAV 
      eSn     12:17:41.65  S res =   0.1X
 KAPI ePn     12:19:04.97  -0.3   11.6 217                                   KAPI
      eSn     12:21:14.76  S res =   1.6X
 UGM  ePn     12:20:53.28  -1.0   20.2 233                                   UGM 
 FITZ eP      12:21:12.76  -1.0   22.3 183 b:6.8+1 .75 5.2                   FITZ
 COEN eP      12:21:33.42  -0.6   24.4 138 b:2.6+2 .95 5.6                   COEN
 PMG  qP      12:21:35.82   1.0   24.5 124 g:1.3-1 1.7 4.5X b:1.3+2 1.7 5.1  PMG 
 WRAB eP      12:21:40.97  -0.6   25.2 163 b:2.2+2 .95 5.6                   WRAB
 MBWA eP      12:21:51.12   0.6   26.2 195 b:1.3+2 .75 5.5                   MBWA
 AS31 P       12:22:12.77   0.3   28.7 166                                   AS31
 CHTO eP      12:22:30.25  -0.3   30.7 300 b:2.3+1 .70 5.0                   CHTO
 CM31 P       12:22:30.45   1.1   30.6 300 b:1.8+1 .78 4.9                   CM31
 CTAO eP      12:22:32.83   0.5   30.9 142 b:2.4+1 1.1 4.8                   CTAO
 MAJO eP      12:22:56.26  -0.6   33.8  17                                   MAJO
 FORT eP      12:23:06.83  -0.2   34.9 178 b:1.2+2 .70 5.9                   FORT
 EIDS eP      12:23:30.96  -0.8   37.8 143 b:5.2+1 1.0 5.4                   EIDS
 BBOO eP      12:23:33.47   0.5   38.0 167 b:1.8+4 2.5 7.6X                  BBOO
 NWAO eP      12:23:35.28   1.0   38.1 193 b:7.6+1 1.1 5.5                   NWAO
 STKA eP      12:23:39.16   0.2   38.7 160                                   STKA
 ARMA P       12:24:06.76   0.6   42.0 147 b:7.3+1 .88 5.5                   ARMA
 ULN  P       12:24:42.08  -0.6   46.6 342 b:3.1+1 .80 5.3                   ULN 
 MSVF P       12:25:47.20  -0.5   55.2 115 b:3.2+1 1.0 5.3                   MSVF
 AAK  P       12:26:20.51  -0.5   59.9 318 b:5.7+1 .85 5.7                   AAK 
 ZAA0 P       12:26:22.57   1.1   60.1 333                                   ZAA0
 KURK P       12:26:28.77  -0.8   61.2 327 b:4.6+1 .65 5.7                   KURK
 KBL  P       12:26:29.12  -0.5   61.2 307 b:3.0+1 .80 5.5                   KBL 
 FX1  P       12:26:30.77  -0.9   61.6  30                                   FX1 
 RPZ  P       12:26:37.01   0.6   62.2 145 b:3.3+1 .96 5.4                   RPZ 
 URZ  P       12:26:40.02  -1.3   63.0 137 b:4.3+1 1.3 5.3                   URZ 
 BRVK P       12:27:06.14  -0.4   66.9 327 b:4.7+1 .85 5.4                   BRVK
 KDAK P       12:28:31.44   0.7   81.4  32 b:1.7+1 .55 5.2                   KDAK
 RSO  e       12:28:39.77   7.8X  81.6  30 b:4.5+1 .90 5.4                   RSO 
 VNDA P       12:28:45.02   1.0   84.0 173 b:1.8+1 .83 5.1                   VNDA
 MALT P       12:28:56.28   1.2   86.0 308 b:2.2+1 1.0 5.2                   MALT
 BR131P       12:29:11.92  -0.5   89.6 310 b:1.5+1 .88 5.2                   BR13
 KWP  P       12:29:40.47   0.2   95.8 321 b:6.8+0 .75 5.2                   KWP 



 Generated 2009 APR 23 at 12:32 UTC

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


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