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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     11 JUL 2007  (192)

     ot  = 14:00:21.77   +/-   1.21              ALAMAGAN REG, N. MARIANA ISLANDS
     lat =      17.962   +/-    7.6
     lon =     145.624   +/-   10.7                                       
     dep =       264.3   +/-   11.8   

     25 km (15 miles) SW of Pagan, Northern Mariana Islands (pop < 10)
     90 km (55 miles) S of Agrihan, Northern Mariana Islands (pop < 10)
     305 km (190 miles) N of SAIPAN, Northern Mariana Islands
     505 km (315 miles) N of HAGATNA, Guam

     nph =   17 of  19    se = 0.62    FE=216                            B   

     error ellipse = (197.1, 65.2, 19.6;101.3,  2.7, 16.6; 10.1, 24.6,  8.9)

 mb = 4.0 (  3)  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
 GUMO P       14:01:31.07   0.0    4.4 190                                   GUMO
      S       14:02:23.57  S res =  -2.6X
 KKM  eP      14:06:16.10   0.3   31.1 251                                   KKM 
 WRAB eP      14:07:24.97  -0.3   39.3 197 b:2.5+0 .49 3.9                   WRAB
 WB2  eP      14:07:24.97  -0.3   39.3 197                                   WB2 
 WRA  P       14:07:25.43   0.1   39.3 197                                   WRA 
 FITZ eP      14:07:38.60   0.1   40.9 210 b:6.0+0 .70 4.1                   FITZ
 ASAR P       14:07:55.30   0.2   42.9 196                                   ASAR
      PcP     14:09:39.60  -1.0X
 CMAR P       14:08:06.85   1.1   44.2 278                                   CMAR
 MBWA eP      14:08:22.74   0.2   46.4 214                                   MBWA
 STKA eP      14:08:46.62  -0.7   49.7 184                                   STKA
 ZALV P       14:09:49.63  -1.1   58.6 323                                   ZALV
 BVAR P       14:10:46.06  -0.3   67.0 321                                   BVAR
 BRVK qP      14:10:46.35  -0.3   67.1 321                                   BRVK
 INK  P       14:11:04.68  -0.3   70.1  23                                   INK 
 NVAR P       14:12:22.35   1.0   83.6  52                                   NVAR
 TPNV eP      14:12:31.82   0.5   85.7  53 b:1.3+0 .53 4.0                   TPNV
 LPAZ ePKPbc  14:19:36.81  -0.1  147.7  92                                   LPAZ



 Generated 2007 JUL 25 at 22:19 UTC

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

 


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