Phase Data

Explanation of Parameters


     14 FEB 2013  ( 45)

     ot  = 18:22:38.18   +/-   1.06              OFF EAST COAST OF HONSHU, JAPAN 
     lat =      36.399   +/-   11.8
     lon =     142.719   +/-   17.6              MAGNITUDE 4.5 (GS)       
     dep =        34.7   +/-    9.0   

     179 km (111 miles) ESE of Iwaki, Honshu, Japan
     201 km (125 miles) E of Mito, Honshu, Japan
     237 km (147 miles) ESE of Koriyama, Honshu, Japan
     279 km (173 miles) ENE of TOKYO, Japan

     nph =   19 of  21    se = 0.52    FE=229                            A   

     error ellipse = (113.0, 18.0, 30.5; 16.0, 19.0, 15.5;243.0, 62.0,  9.2)

 mb = 4.5 (  8)  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
 MAJO ePn     18:23:31.18  -0.9    3.6 274                                   MAJO
 MJB9 ePn     18:23:31.19  -0.9    3.6 274                                   MJB9
 INU  ePn     18:23:46.83  -0.3    4.7 259                                   INU 
 ASAJ ePn     18:24:26.90  -1.0    7.7 359                                   ASAJ
      eSn     18:25:50.53  S res =  -3.5 
 KLR  ePn     18:26:12.10   3.1   15.1 331                                   KLR 
 MA2  eP      18:27:47.42   0.1   23.8  10                                   MA2 
 XAN  eP      18:28:22.01  -0.5   27.6 275 b:1.8+1 1.5 4.5                   XAN 
 ENH  eP      18:28:28.92   0.1   28.3 267 b:1.6+1 1.3 4.5                   ENH 
 ULN  eP      18:28:31.29   0.3   28.6 305 b:5.8+0 1.2 4.1                   ULN 
 SONA0eP      18:28:35.06   0.3   29.0 305                                   SONA
 ZAA1 eP      18:30:35.03   0.2X  43.1 313                                   ZAA1
 MK01 eP      18:30:52.47  -0.4   45.3 303                                   MK01
 MK31 eP      18:30:52.90   0.1   45.3 303 b:3.2+0 1.0 4.2                   MK31
 MKAR eP      18:30:52.91   0.1   45.3 303 b:1.4+1 .85 4.9                   MKAR
 MK32 eP      18:30:53.12   0.3X  45.3 303                                   MK32
 MAKZ eP      18:30:55.47   1.0   45.5 303 b:7.7+0 1.5 4.4                   MAKZ
 KURK eP      18:31:06.57  -0.3   47.1 309 b:4.1+0 .80 4.5                   KURK
 WR1  eP      18:32:17.52   0.0   56.6 190 b:2.2+1 2.0 4.8                   WR1 
 FIA0 eP      18:33:44.55  -0.4   69.9 333                                   FIA0
 KBZ  eP      18:34:00.28   1.4   72.1 312                                   KBZ 



 Generated 2013 MAR 19 at 13:46 UTC

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