Phase Data

Explanation of Parameters


      1 MAR 2013  ( 60)

     ot  = 12:22:09.48   +/-   0.91              NEAR EAST COAST OF HONSHU, JAPAN
     lat =      40.412   +/-   10.4
     lon =     142.098   +/-    9.2              MAGNITUDE 4.1 (GS)       
     dep =        62.6   +/-    8.6   

     53 km (33 miles) ESE of Hachinohe, Honshu, Japan (pop 244,000)
     113 km (70 miles) NE of Morioka, Honshu, Japan (pop 287,000)
     123 km (76 miles) ESE of Aomori, Honshu, Japan (pop 311,000)
     564 km (350 miles) NNE of TOKYO, Japan

     nph =   22 of  22    se = 0.45    FE=228                            A   

     error ellipse = (186.0, 12.0, 16.2;281.0, 23.0, 14.5; 70.0, 63.0, 12.6)

 mb = 4.1 (  7)  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
 ERM  ePn     12:22:37.61  -0.5    1.8  26                                   ERM 
      eSn     12:23:01.14  S res =   1.3 
 MAJO ePn     12:23:20.82  -0.1    4.9 220                                   MAJO
 MJB9 ePn     12:23:21.06   0.2    4.9 220                                   MJB9
 INU  ePn     12:23:42.16   0.4    6.5 220                                   INU 
 YSS  ePn     12:23:42.40  -0.9    6.6   4                                   YSS 
 USA0BePn     12:24:08.56   0.2    8.4 300                                   USA0
 MA2  eP      12:26:35.08  -1.0   19.9  13 b:3.0+0 .80 3.7                   MA2 
 ANM  eP      12:29:25.00   0.1   38.5  33 b:1.9+0 .92 4.0                   ANM 
 ZALV eP      12:29:38.84   0.1   40.1 310                                   ZALV
 ZAA0 eP      12:29:39.06   0.3   40.1 310 b:1.5+0 .70 4.0                   ZAA0
 MK01 eP      12:30:00.58  -0.8   42.9 299                                   MK01
 MK31 eP      12:30:01.13  -0.3   42.9 299                                   MK31
 MAKZ eP      12:30:03.34   0.3   43.1 299 b:2.3+0 .75 4.0                   MAKZ
 IM3  eP      12:30:06.19   0.0   43.5  32                                   IM3 
 PPLA eP      12:30:11.02  -0.4   44.1  37 b:5.7+0 1.3 4.2                   PPLA
 KURK eP      12:30:13.19   0.1   44.3 306 b:5.1+0 .95 4.3                   KURK
 ABKAReP      12:31:42.49  -0.4   56.2 309                                   ABKA
 AS01 eP      12:32:36.74  -0.9   64.2 188                                   AS01
 FIA1 eP      12:32:49.25  -0.2   66.1 332                                   FIA1
 HRY  eP      12:33:21.46   0.0   71.2  44                                   HRY 
 DLMT eP      12:33:24.45   0.3   71.6  46 b:2.7+0 .90 4.2                   DLMT



 Generated 2013 MAR  1 at 12:47 UTC

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