Phase Data

Explanation of Parameters


      1 FEB 2013  ( 32)

     ot  = 10:55:26.11   +/-   1.65              NEAR EAST COAST OF HONSHU, JAPAN
     lat =      38.497   +/-   11.4
     lon =     142.344   +/-   14.2              MAGNITUDE 4.5 (GS)       
     dep =        50.7   +/-    9.0   

     130 km (81 miles) ENE of Sendai, Honshu, Japan (pop 1,024,000)
     169 km (105 miles) SE of Morioka, Honshu, Japan
     177 km (110 miles) E of Yamagata, Honshu, Japan
     388 km (241 miles) NE of TOKYO, Japan

     nph =   28 of  28    se = 0.82    FE=228                            A   

     error ellipse = (126.0,  7.0, 25.9;235.0, 67.0, 13.7; 33.0, 21.0, 10.6)

 mb = 4.4 ( 12)  ML = 3.5 (  8)  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
 ERM  ePn     10:56:18.25  -0.7    3.6  10 L:2.6-1 .77 3.7                   ERM 
      eSn     10:57:00.20  S res =   0.3 
 MAJO ePn     10:56:23.14   0.7    3.8 241 L:9.0-2 .78 3.3                   MAJO
 MJB9 ePn     10:56:23.33   0.9    3.8 241                                   MJB9
 INU  ePn     10:56:43.92   1.4    5.3 235 L:5.0-2 2.4 3.5                   INU 
 JHJ2 ePn     10:56:49.07   0.2    5.8 202 L:8.0-1 2.5 4.8                   JHJ2
      eSn     10:57:53.47  S res =   0.0 
 USA0BePn     10:57:42.44   0.3    9.6 310                                   USA0
 ENH  eP      11:01:14.07   0.0   28.2 263 b:8.9+0 .80 4.4                   ENH 
 MK01 eP      11:03:27.36  -0.9   44.0 301                                   MK01
 MK31 eP      11:03:28.06  -0.2   44.0 301                                   MK31
 MKAR eP      11:03:28.47   0.2   44.0 301 b:1.1+1 .55 4.8                   MKAR
 MAKZ eP      11:03:29.95   0.0   44.2 301 b:3.2+0 .95 4.1                   MAKZ
 IM3  eP      11:03:37.47   1.2   45.0  31                                   IM3 
 CAST eP      11:03:39.78  -1.2   45.6  35 b:5.0-1 .88 3.5                   CAST
 PPLA eP      11:03:39.79  -0.9   45.5  36                                   PPLA
 KURK eP      11:03:40.66  -0.5   45.6 307 b:5.8+0 .55 4.7                   KURK
 SCRK eP      11:04:09.69   0.9   49.2  34 b:1.8+0 1.1 4.0                   SCRK
 ABKAReP      11:05:10.23  -0.2   57.6 310                                   ABKA
 WB2  eP      11:05:16.49  -1.4   58.6 189                                   WB2 
      eP      11:05:16.85  -1.1 
 WRAB eP      11:05:17.42  -0.4   58.6 189 b:5.6+0 1.1 4.6                   WRAB
 AS01 eP      11:05:43.13  -0.1   62.3 189                                   AS01
 AS31 eP      11:05:43.45   0.2   62.3 189 b:4.0-1 .75 3.6                   AS31
 KEV  eP      11:05:43.46   0.7   62.3 339 b:1.1+1 1.0 4.9                   KEV 
 FIA1 eP      11:06:18.55  -0.1   67.9 332                                   FIA1
      eP      11:06:18.91   0.2 
 SUMG eP      11:06:28.76   1.2   69.2   0                                   SUMG



 Generated 2013 FEB  1 at 11:17 UTC

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