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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     23 JUL 2007  (204)

     ot  = 22:56:08.70   +/-   0.98              VANUATU                         
     lat =     -16.519   +/-   18.2
     lon =     168.100   +/-   15.4                                       
     dep =        35.0  (geophysicist)

     140 km (85 miles) N of PORT-VILA, Efate, Vanuatu (pop 30,000)
     150 km (95 miles) SE of Luganville, Espiritu Santo, Vanuatu (pop 11,000)
     355 km (220 miles) NNW of Isangel, Tanna, Vanuatu
     1965 km (1220 miles) NE of BRISBANE, Queensland, Australia

     nph =    9 of  10    se = 0.67    FE=186                            C   

     error ellipse = (152.4,  0.0, 25.3; 62.4,  0.0, 18.9;  0.0,  0.0,  0.0)

 mb = 4.5 (  4)  ML = 0.0 (  0)  mblg = 4.0 (  1)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 CTAO eP      23:00:50.17   0.4   21.0 257 b:8.4+0 .53 4.4                   CTAO
 STKA eP      23:02:00.36  -0.5   28.5 233 g:2.1-2 1.0 4.0  b:2.1+1 1.0 4.8X STKA
 TAU  qP      23:02:28.54  -0.7   31.7 210                                   TAU 
 WRAB eP      23:02:33.26  -0.5   32.2 259 b:2.7+0 .45 4.4                   WRAB
 WB2  eP      23:02:33.58  -0.2   32.2 259                                   WB2 
 FITZ eP      23:03:44.92   0.3   40.5 261 b:9.1+0 .81 4.6                   FITZ
 MBWA eP      23:04:28.65   0.6   45.9 256 b:3.2+0 .54 4.5                   MBWA
 IMA2 eP      23:08:50.46  -0.4   87.2  15                                   IMA2
 SNAA eP      23:09:13.71   0.9   91.8 183 b:4.6+0 1.2 4.8X                  SNAA
 KURK qPdif   23:09:59.54  -0.7X 102.3 319                                   KURK



 Generated 2007 JUL 26 at 02:18 UTC

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

 


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