Phase Data

Explanation of Parameters


      8 MAR 2013  ( 67)

     ot  = 04:40:22.71   +/-   0.82              TONGA                           
     lat =     -18.001   +/-   20.7
     lon =    -175.783   +/-   23.4              MAGNITUDE 4.5 (GS)       
     dep =        78.3   +/-    9.5   

     203 km (126 miles) WNW of Neiafu, Tonga
     313 km (195 miles) SW of Hihifo, Tonga
     352 km (218 miles) N of NUKU`ALOFA, Tonga
     2286 km (1419 miles) NNE of Auckland, New Zealand

     nph =   44 of  44    se = 0.40    FE=173                            B   

     error ellipse = (271.0,  4.0, 35.9;180.0, 10.0, 32.1; 24.0, 78.0, 13.1)

 mb = 4.5 ( 39)  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
 NIUE ePn     04:41:44.17  -0.1    5.7 102                                   NIUE
 VNDA eP      04:50:24.46  -0.1   60.6 185 b:4.3+0 1.0 4.5                   VNDA
 MAJO eP      04:51:22.85  -0.2   69.5 322 b:2.8+1 .65 5.3                   MAJO
 MJB9 eP      04:51:23.00   0.0   69.5 322 b:2.8+1 .68 5.3                   MJB9
 MOD  eP      04:52:14.34  -1.6   78.6  39 b:4.8+0 .95 4.4                   MOD 
 SHPR eP      04:52:15.99  -1.4   78.8  46 b:1.0+1 1.6 4.5                   SHPR
 W13A eP      04:52:16.74  -1.5   78.9  48 b:2.4+0 1.0 4.1                   W13A
 PINE eP      04:52:19.26  -0.9   79.3  37 b:6.0+0 .95 4.5                   PINE
 TUC  eP      04:52:21.84  -0.9   79.8  51 b:1.6+1 1.9 4.6                   TUC 
 WVOR eP      04:52:22.35  -0.7   79.9  39 b:6.0+0 1.1 4.4                   WVOR
 X16A eP      04:52:25.17  -0.6   80.3  49 b:6.8+0 1.3 4.4                   X16A
 G08A eP      04:52:30.02  -0.9   81.4  37 b:4.4+0 1.0 4.3                   G08A
 DUG  eP      04:52:35.85  -0.2   82.3  44 b:8.1+0 1.3 4.5                   DUG 
 TMUT eP      04:52:39.49   0.1   82.9  45 b:7.1+0 1.1 4.5                   TMUT
 HLID eP      04:52:39.90  -0.1   83.1  40 b:5.5+0 .90 4.5                   HLID
 HVU  eP      04:52:40.50   0.1   83.2  42 b:4.1+0 .92 4.4                   HVU 
 TCUT eP      04:52:43.11  -0.2   83.7  43 b:1.4+1 .92 4.9                   TCUT
 TX31 eP      04:52:44.48  -0.2   84.0  57 b:1.1+1 1.6 4.6                   TX31
      eP      04:52:44.77   0.3 
 PV09 eP      04:52:44.72   0.0   83.9  47                                   PV09
 PV23 eP      04:52:44.76  -0.2   84.0  47 b:9.3+0 1.1 4.7                   PV23
 ANMO eP      04:52:45.87  -0.1   84.2  51 b:2.5+0 .90 4.2                   ANMO
 MCMT eP      04:52:48.60   0.3   84.7  40                                   MCMT
 WRH  eP      04:52:49.40   0.7   84.9  12 b:4.2+1 1.8 5.1                   WRH 
 MSO  eP      04:52:50.07  -0.1   85.1  38 b:9.5+0 1.2 4.7                   MSO 
 TPAW eP      04:52:50.24  -0.6   85.2  41 b:6.3+0 1.0 4.6                   TPAW
 CCB  eP      04:52:50.73   1.0   85.2  12 b:7.0+0 .92 4.7                   CCB 
 REDW eP      04:52:51.04   0.3   85.2  42 b:2.5+1 1.8 4.9                   REDW
 FXWY eP      04:52:51.31   0.4   85.2  41 b:5.0+0 1.3 4.4                   FXWY
 S22A eP      04:52:51.32   0.3   85.2  48 b:9.1+0 1.3 4.6                   S22A
 ILB  eP      04:52:51.77   0.6   85.4  12 b:3.0+1 1.8 5.0                   ILB 
 IMW  eP      04:52:51.79  -0.1   85.4  41 b:4.4+0 .95 4.5                   IMW 
 PDAR eP      04:52:52.89  -0.5   85.7  43                                   PDAR
 FLWY eP      04:52:53.13   0.1   85.6  41 b:5.9+0 .95 4.6                   FLWY
 YMR  eP      04:52:53.78   0.1   85.8  40 b:8.8+0 1.1 4.7                   YMR 
 SMCO eP      04:52:53.92   0.0   85.8  47 b:5.8+0 1.2 4.5                   SMCO
 BOZ  eP      04:52:54.32   0.4   85.9  39 b:5.6+0 1.2 4.5                   BOZ 
 YHH  eP      04:52:54.69   0.3   85.9  40 b:1.0+1 1.6 4.6                   YHH 
 SDCO eP      04:52:55.85   0.1   86.1  49 b:1.3+1 2.0 4.6                   SDCO
 HRY  eP      04:52:56.17   0.2   86.3  38                                   HRY 
 MSTX eP      04:52:57.55   0.0   86.6  53 b:2.4+1 1.7 5.0                   MSTX
 RLMT eP      04:53:00.28   0.4   87.0  41 b:8.8+0 1.1 4.8                   RLMT
 AMTX eP      04:53:03.60   0.3   87.7  52 b:1.2+1 .90 5.0                   AMTX
 ABTX eP      04:53:06.81   0.3   88.4  55 b:1.4+1 .95 5.1                   ABTX



 Generated 2013 MAR  8 at 05:26 UTC

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