Phase Data

Explanation of Parameters


      7 JAN 2013  (  7)

     ot  = 23:55:22.21   +/-   1.54              NEAR EAST COAST OF HONSHU, JAPAN
     lat =      35.121   +/-    7.9
     lon =     141.663   +/-   15.9              MAGNITUDE 4.6 (GS)       
     dep =        19.6   +/-    5.0   

     175 km (108 miles) SE of Mito, Honshu, Japan
     185 km (115 miles) ESE of TOKYO, Japan
     188 km (117 miles) E of Yokohama, Honshu, Japan
     225 km (140 miles) SSE of Iwaki, Honshu, Japan

     nph =   42 of  42    se = 0.76    FE=228                            A   

     error ellipse = ( 89.0,  7.0, 24.5;357.0, 15.0, 12.4;204.0, 72.0,  6.4)

 mb = 4.6 ( 17)  ML = 4.2 (  8)  mblg = 3.5 (  7)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 MAJO ePn     23:56:11.73   1.0    3.1 298 L:3.9-1 1.3 3.7  g:1.2-1 1.0 3.4  MAJO
 MJB9 ePn     23:56:11.97   1.2    3.1 298 g:1.3-1 1.0 3.5                   MJB9
 INU  ePn     23:56:21.74   2.1    3.8 275 L:4.6-1 1.9 4.0  g:7.0-2 .95 3.3  INU 
 ERM  ePn     23:57:01.03  -2.3    7.0   9 L:2.3-1 1.4 4.6  g:9.0-2 1.2 3.7  ERM 
      eSn     23:58:15.69  S res =  -6.4 
 CBIJ ePn     23:57:15.55  -2.0    8.0 177 L:5.5-1 .85 5.3                   CBIJ
      eSn     23:58:42.62  S res =  -5.0 
 ASAJ ePn     23:57:28.99  -2.2    9.0   4                                   ASAJ
      eSn     23:59:09.44  S res =  -2.7 
 JNU  ePn     23:57:35.79   2.5    9.2 261                                   JNU 
 USA0BePn     23:58:08.55   0.2   11.7 324                                   USA0
 ULN  eP      00:01:17.47   0.0   28.6 307 b:7.1+0 1.1 4.3                   ULN 
 SONA1eP      00:01:21.65   0.4   29.0 307                                   SONA
 PBKT eP      00:03:00.98  -0.4   40.7 254 b:6.5+0 .98 4.3                   PBKT
 YOJ  eSn     00:03:12.19 -11.4   19.3 242                                   YOJ 
 ZALV eP      00:03:22.35  -0.6   43.4 314                                   ZALV
 ZAA0 eP      00:03:22.82  -0.2   43.4 314 b:2.5+0 .65 4.1                   ZAA0
 MK01 eP      00:03:38.57  -0.2   45.3 304                                   MK01
 MKAR eP      00:03:39.02   0.2   45.3 304 b:1.6+1 .85 5.0                   MKAR
 MK31 eP      00:03:39.02   0.2   45.3 304                                   MK31
 MAKZ eP      00:03:40.44   0.0   45.5 304 b:2.2+0 .90 4.1                   MAKZ
 KURK eP      00:03:53.56  -0.5   47.3 310 b:1.5+1 .85 5.1                   KURK
 GSI  eP      00:04:37.41  -0.6   53.0 241 b:4.5+1 .90 5.4                   GSI 
 KKAR eP      00:04:46.62  -0.3   54.3 302                                   KKAR
 KK31 eP      00:04:46.76  -0.2   54.3 302                                   KK31
 WB2  eP      00:04:53.77   0.1   55.2 188                                   WB2 
 NIL  eP      00:04:55.47   0.1   55.4 290                                   NIL 
 ARU  eP      00:05:12.80   0.0   57.9 320 b:1.4+1 1.1 4.9                   ARU 
 ABKAReP      00:05:21.83  -0.9   59.3 311                                   ABKA
 AK11 eP      00:07:06.72  -0.9   76.0 323                                   AK11
 AKBB eP      00:07:07.03  -0.4   75.9 323 b:6.0+0 .80 4.7                   AKBB
 KIEV eP      00:07:07.23  -0.2   75.9 323 b:5.9+0 .80 4.7                   KIEV
 BUR04eP      00:07:30.20   0.3   79.9 322                                   BUR0
 OJC  eP      00:07:34.52   0.5   80.7 327 b:2.4+0 .80 4.3                   OJC 
 RAYN eP      00:07:39.49   0.5   81.6 293 b:5.0+0 .85 4.6                   RAYN
 PV14 eP      00:07:43.35   2.6   81.9  48 b:3.9+0 .72 4.6                   PV14
 PV10 eP      00:07:43.61   2.9   81.9  48                                   PV10
 CLL  eP      00:07:45.40   0.3   82.9 331 b:4.9+0 .90 4.6                   CLL 
 KHC  eP      00:07:53.11   0.6   84.3 329 b:1.1+0 .80 4.1                   KHC 
 VTS  eP      00:07:54.39   1.2   84.4 319 b:7.4+0 .80 5.0                   VTS 
 FUORNeP      00:08:09.90   0.4   87.6 329 b:4.1+0 1.1 4.6                   FUOR
 TX31 eP      00:08:27.05   1.2   91.1  52                                   TX31



 Generated 2013 JAN  8 at 00:11 UTC

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