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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     15 APR 2009  (105)

     ot  = 03:11:22.59   +/-   1.61              VANUATU                         
     lat =     -14.933   +/-    8.1
     lon =     167.286   +/-    6.8              MAGNITUDE 5.0 (GS)       
     dep =       175.9   +/-   14.4   

     70 km (40 miles) NNE of Luganville, Espiritu Santo, Vanuatu (pop 11,000)
     330 km (205 miles) NNW of PORT-VILA, Efate, Vanuatu
     490 km (305 miles) SSE of Lata, Santa Cruz Islands, Solomon Isl.
     2025 km (1260 miles) NE of BRISBANE, Queensland, Australia

     nph =   44 of  46    se = 1.00    FE=186                            A   

     error ellipse = (200.7, 65.2, 23.9; 61.4, 19.3, 10.5;326.0, 15.0,  8.4)

 mb = 4.8 ( 25)  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
 DZM  ePn     03:13:01.77  -2.9    7.1 186 d:1.7+2     6.4X L:1.4-1 .45 4.4X DZM 
      eSn     03:14:23.56  S res =  -1.9X  g:1.0-1 .95 3.7X b:7.1+1 .45 5.3 
 EIDS eP      03:15:26.24   1.8   18.4 233 b:5.1+1 .60 5.1                   EIDS
 RAO  eP      03:15:39.98   1.0   19.7 139 b:2.4+3 2.0 6.3X                  RAO 
 AFI  eP      03:15:46.60   1.4   20.3  90 b:7.8+1 1.3 5.0                   AFI 
 PMG  eP      03:15:46.99   0.7   20.4 283 b:1.9+1 .80 4.6                   PMG 
 CTAO eP      03:15:50.13   0.9   20.7 253 b:2.8+1 .90 4.7                   CTAO
 OUZ  eP      03:15:53.59   1.5   21.0 165 b:4.1+1 .84 4.9                   OUZ 
 COEN eP      03:16:15.71   0.2   23.4 269                                   COEN
 URZ  eP      03:16:28.42   0.0   24.8 161 b:4.2+1 1.6 4.8                   URZ 
 KHZ  eP      03:16:56.27   0.1   27.9 170 b:1.7+2 1.9 5.4                   KHZ 
 RPZ  eP      03:17:04.08  -0.6   28.9 174 b:1.9+1 .76 4.9                   RPZ 
 STKA eP      03:17:06.26   1.4   28.9 230 b:4.1+0 .45 4.5                   STKA
 WHZ  eP      03:17:22.04  -0.2   30.9 179 b:3.7+2 2.4 5.7                   WHZ 
 WRAB eP      03:17:29.41  -1.2   31.8 256 b:9.1+0 1.0 4.4                   WRAB
 AS31 eP      03:17:36.87  -1.0   32.6 249                                   AS31
 BBOO eP      03:17:45.99   0.9   33.5 232 b:3.0+3 2.1 6.6X                  BBOO
 FORT eP      03:18:33.68  -0.1   39.2 239 b:2.3+1 .56 5.1                   FORT
 FITZ eP      03:18:40.38  -0.1   40.0 260 b:1.5+1 .55 4.8                   FITZ
 MBWA eP      03:19:24.93   0.1   45.5 255 b:2.8+1 1.5 4.6                   MBWA
 KAPI eP      03:19:41.68  -0.6   47.7 277 b:8.3+0 1.0 4.3                   KAPI
 UGM  eP      03:20:43.19   0.1   56.0 270 b:5.3+2 1.9 6.0X                  UGM 
 MAJO eP      03:20:57.25  -0.3   58.1 333                                   MAJO
 JNU  eP      03:21:04.91   0.3   59.1 325 b:7.2+1 2.4 5.1                   JNU 
 VNDA eP      03:21:27.92   0.0   62.7 181 b:4.3+1 1.9 5.0                   VNDA
 SBA  eP      03:21:30.91   1.2   62.9 180 b:1.6+1 .85 4.9                   SBA 
 CASY eP      03:21:33.23   0.6   63.3 202 b:1.3+2 2.5 5.4                   CASY
 KULM eP      03:22:10.06   0.5   69.0 282 b:1.1+1 .91 4.6                   KULM
 QSPA eP      03:22:44.14  -0.9   75.1 180 b:9.1+0 .90 4.5                   QSPA
 CHTO eP      03:22:46.77   0.6   75.2 294 b:3.2+0 .90 4.1                   CHTO
 ULN  eP      03:23:24.95   0.3   82.3 324 b:4.6+0 .80 4.3                   ULN 
 SNAA eP      03:24:16.02  -1.3   93.3 183 b:2.2+0 .64 4.5                   SNAA
 MK31 eP      03:24:36.23   0.3   97.4 316                                   MK31
 BOSA ePKPdf  03:29:59.14  -0.2  123.2 220                                   BOSA
 LBTB ePKPdf  03:30:03.73   0.1  125.5 224                                   LBTB
 MALT ePKPdf  03:30:11.38   0.6  129.4 308                                   MALT
 BR131ePKPdf  03:30:16.09  -0.8  132.7 311                                   BR13
 BUR08ePKPdf  03:30:21.49   0.9  134.8 324                                   BUR0
 MORC ePKPdf  03:30:24.90  -0.4  137.4 331                                   MORC
 TUE  ePKPdf  03:30:34.31  -2.4  143.5 334                                   TUE 
 AQU  ePKPdf  03:30:37.26  -1.2  144.6 326                                   AQU 
 TIP  ePKPdf  03:30:38.02  -0.6  144.6 319                                   TIP 
 BNI  ePKPbc  03:30:41.52   0.2  145.8 335                                   BNI 
 KEST ePKPbc  03:30:56.15   0.2  151.4 320                                   KEST
      ePKPab  03:31:05.60   0.8X
 TOA0 ePKPdf  03:31:06.68  -1.0  165.9 265                                   TOA0



 Generated 2009 APR 15 at 23:05 UTC

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


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