Phase Data

Explanation of Parameters 


     17 OCT 2011  (290)

     ot  = 00:19:02.14   +/-   1.13              VANUATU                         
     lat =     -15.084   +/-   12.3
     lon =     167.341   +/-    5.8              MAGNITUDE 4.6 (GS)       
     dep =       135.4   +/-    8.2   

     53 km (33 miles) NNE of Luganville, Espiritu Santo, Vanuatu (pop 11,000)
     311 km (193 miles) NNW of PORT-VILA, Efate, Vanuatu
     534 km (332 miles) NNW of Isangel, Tanna, Vanuatu
     2020 km (1254 miles) NE of BRISBANE, Queensland, Australia

     nph =   26 of  28    se = 0.55    FE=186                            A   

     error ellipse = ( 20.0,  9.0, 20.2;242.0, 77.0, 12.3;111.0,  8.0,  5.7)

 mb = 4.6 ( 15)  ML = 4.3 (  2)  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     00:20:39.56  -2.8    7.0 187 L:1.2-1 1.2 4.4                   DZM 
 MSVF ePn     00:21:33.01   2.3   10.6 106                                   MSVF
 TARA eP      00:22:54.94   0.7   17.2  19 b:4.9+1 1.6 4.5                   TARA
 EIDS eP      00:23:07.23   0.9   18.3 234 b:2.7+1 .70 4.7                   EIDS
 CTAO eP      00:23:32.18   0.3   20.7 253 b:1.3+1 1.0 4.3                   CTAO
 OUZ  eP      00:23:33.21   0.2   20.8 166 b:1.8+1 .92 4.5                   OUZ 
 URZ  eP      00:24:10.17   0.0   24.6 161 b:4.4+1 1.1 4.9                   URZ 
 BKZ  eP      00:24:16.02  -0.2   25.3 163 b:1.4+1 .66 4.6                   BKZ 
 STKA eP      00:24:47.73   0.1   28.8 230 b:2.2+0 .60 4.0                   STKA
 AS01 eP      00:25:19.89  -1.0   32.6 250                                   AS01
      epP     00:25:46.94  depth =  -2.4X
 AS31 eP      00:25:20.37  -0.8   32.6 250 b:2.9+0 .80 4.1                   AS31
 XMIS eP      00:28:56.04  -0.2   60.2 266 b:1.0+2 .75 5.9                   XMIS
 VNDA eP      00:29:10.82   0.0   62.5 181 b:2.5+1 2.0 4.8                   VNDA
 SBA  eP      00:29:13.73   1.1   62.8 180 b:1.3+1 .90 4.9                   SBA 
 QSPA eP      00:30:28.04  -0.2   75.0 180                                   QSPA
 CHTO eP      00:30:30.68  -0.2   75.3 294 b:2.2+1 1.6 4.7                   CHTO
 CM01 eP      00:30:30.79   0.8   75.1 294                                   CM01
 MAW  eP      00:31:04.78   0.3   81.6 202 b:1.2+0 1.1 3.5                   MAW 
 ULN  eP      00:31:09.61   0.0   82.5 324 b:8.2+0 .80 4.6                   ULN 
 SONA1eP      00:31:11.03  -0.4   82.8 324                                   SONA
 CAST eP      00:31:16.94  -1.6   84.3  17 b:6.8+0 1.0 4.4                   CAST
 SNAA eP      00:31:59.35  -1.5   93.2 183                                   SNAA
 YERR epP     00:32:04.32  -1.5X  87.0  49                                   YERR
 MK01 eP      00:32:19.97  -0.8   97.5 316                                   MK01
 MKAR eP      00:32:21.07   0.3   97.5 316                                   MKAR
 MK31 eP      00:32:21.07   0.3   97.5 316                                   MK31
 MAKZ eP      00:32:21.29  -0.5   97.7 316                                   MAKZ



 Generated 2011 OCT 17 at 00:35 UTC

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