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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     26 AUG 2008  (239)

     ot  = 07:05:27.41   +/-   0.56              TONGA REGION                    
     lat =     -23.522   +/-   11.4
     lon =    -175.172   +/-   10.3                                       
     dep =        35.0  (geophysicist)

     265 km (165 miles) S of NUKU'ALOFA, Tonga
     485 km (300 miles) SE of Ndoi Island, Fiji
     555 km (345 miles) SSW of Neiafu, Tonga
     1770 km (1100 miles) NE of Auckland, New Zealand

     nph =   13 of  22    se = 1.09    FE=174                            B   

     error ellipse = (174.3,  0.0, 15.1; 84.3,  0.0, 13.6;  0.0,  0.0,  0.0)

 mb = 4.4 (  3)  ML = 0.0 (  0)  mblg = 3.4 (  1)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 MSVF ePn     07:07:29.95   0.9    8.6 311 d:3.8+1     5.6X L:5.8-2 1.3 4.2X MSVF
                                           g:3.6-2 1.0 3.4  b:8.4+1 1.3 5.7X
 AFI  ePn     07:07:49.72  -0.2   10.1  19                                   AFI 
      Sn      07:09:31.83  S res = -10.1X
 RAR  Pn      07:08:48.60  -0.6   14.4  84                                   RAR 
 CTA  P       07:12:19.85  -4.7X  35.9 268                                   CTA 
 STKA P       07:12:46.20  -4.2X  39.0 248                                   STKA
      LR      07:27:37.32                                  
 ASAR P       07:13:46.60  -4.7X  46.5 259                                   ASAR
 WRA  P       07:13:48.65  -5.7X  46.8 264                                   WRA 
 FITZ eP      07:14:55.17  -2.5   55.3 264 b:2.7+0 .88 4.3                   FITZ
 SBA  eP      07:14:58.20   3.0X  55.1 185 b:3.7+0 1.0 4.4                   SBA 
 QSPA eP      07:16:15.18   1.4   66.6 180 b:2.9+0 .76 4.4                   QSPA
 MAW  P       07:17:31.04   0.4   79.6 199                                   MAW 
 PETK P       07:17:31.95  -0.2   79.9 344                                   PETK
 TXAR P       07:18:10.80   3.7X  86.5  56                                   TXAR
      LR      07:52:24.03                                  
 ILAR P       07:18:27.35   1.4   90.7  12                                   ILAR
 CMAR P       07:18:40.86   0.5   93.6 288                                   CMAR
 MKAR PKP     07:24:04.65  -0.3  115.2 312                                   MKAR
 BVAR PKP     07:24:19.91   0.0  123.1 319                                   BVAR
 AKASGPKPbc   07:25:05.68  -0.2  146.9 331                                   AKAS
 BRTR PKPbc   07:25:15.90  -0.5  150.8 310                                   BRTR



 Generated 2008 SEP  6 at 07:46 UTC

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


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