Phase Data

Explanation of Parameters 


     12 JAN 2012  ( 12)

     ot  = 17:12:09.25   +/-   2.69              TONGA REGION                    
     lat =     -17.974   +/-   16.6
     lon =    -172.346   +/-   12.5              MAGNITUDE 5.0 (GS)       
     dep =        39.0   +/-    6.1   

     188 km (117 miles) ENE of Neiafu, Tonga
     269 km (167 miles) SSE of Hihifo, Tonga
     460 km (286 miles) NE of NUKU`ALOFA, Tonga
     2444 km (1518 miles) NE of Auckland, New Zealand

     nph =   31 of  31    se = 1.32    FE=174                            A   

     error ellipse = (150.0,  5.0, 28.4;241.0,  7.0, 14.9; 26.0, 80.0,  8.8)

 mb = 5.0 ( 15)  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
 AFI  ePn     17:13:04.00  -5.2    4.1   8                                   AFI 
 DZM  eP      17:16:41.53  -0.9   20.3 255 b:7.0+1 2.0 4.7                   DZM 
 CTAO eP      17:19:32.16  -1.1   39.1 260 b:4.7+1 1.8 5.0                   CTAO
 WB2  eP      17:21:00.25  -2.0   50.3 259                                   WB2 
      eP      17:21:00.30  -1.9 
 AS01 eP      17:21:00.64  -1.6   50.3 254                                   AS01
 AS31 eP      17:21:01.65  -0.9   50.3 254 b:4.9+0 .90 4.5                   AS31
 QSPA eP      17:23:29.14  -0.3   72.1 180 b:3.7+1 2.0 5.0                   QSPA
 NV11 eP      17:23:50.87   0.1   75.7  41 b:6.0-1 1.4 3.4                   NV11
 KSM  eP      17:24:08.56   1.9   78.4 275 b:5.1+1 1.5 5.3                   KSM 
      epP     17:24:17.36  depth =   1.2 
 G08A eP      17:24:09.89  -1.7   79.4  35 b:4.6+0 1.3 4.3                   G08A
 KS01 eP      17:24:09.99   2.3   78.7 315                                   KS01
 NOQ  eP      17:24:16.68  -2.2   80.8  42                                   NOQ 
 TX31 eP      17:24:22.65   1.3   81.2  56                                   TX31
 PDAR eP      17:24:33.09  -0.3   83.5  41                                   PDAR
 YHH  eP      17:24:35.13   0.3   83.8  39 b:1.9+1 1.8 4.9                   YHH 
 BOZ  eP      17:24:35.60   0.9   83.8  38 b:1.4+1 1.5 4.8                   BOZ 
 CCB  eP      17:24:37.54   0.0   84.5  10 b:6.4+1 1.8 5.4                   CCB 
 ILB  eP      17:24:38.30  -0.7   84.8  11                                   ILB 
 IL1  eP      17:24:38.49  -0.5   84.8  11                                   IL1 
 MDM  eP      17:24:38.64  -0.1   84.7  10 b:3.3+1 1.8 5.2                   MDM 
 IMAR eP      17:24:39.94   0.6   84.9   8                                   IMAR
      epP     17:24:49.14  depth =   0.0 
 DAWY eP      17:24:44.30   0.8   85.7  14 b:3.0+1 1.9 5.2                   DAWY
 LAO  eP      17:24:53.20   0.0   87.6  39 b:2.8+1 .75 5.6                   LAO 
 INK  eP      17:25:06.32  -0.2   90.5  14 b:1.9+1 1.7 5.1                   INK 
 CLL  ePKPdf  17:31:47.10   2.4  146.5 354                                   CLL 
 GEA0 ePKPbc  17:31:53.15   0.4  148.8 352                                   GEA0
 BR231ePKPbc  17:31:55.89   1.8  149.2 320                                   BR23
 GAMB eS      17:34:30.70   0.4   81.5   0                                   GAMB



 Generated 2012 JAN 12 at 18:08 UTC

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