Phase Data

Explanation of Parameters


     18 FEB 2013  ( 49)

     ot  = 11:06:44.49   +/-   0.36              NEAR EAST COAST OF HONSHU, JAPAN
     lat =      38.866   +/-   10.5
     lon =     142.238   +/-   16.4              MAGNITUDE 4.7 (GS)       
     dep =        61.3   +/-   10.7   

     132 km (82 miles) SE of Morioka, Honshu, Japan (pop 287,000)
     136 km (84 miles) ENE of Sendai, Honshu, Japan (pop 1,024,000)
     179 km (111 miles) ENE of Yamagata, Honshu, Japan
     416 km (258 miles) NNE of TOKYO, Japan

     nph =   25 of  25    se = 0.18    FE=228                            A   

     error ellipse = (120.0, 17.0, 29.5;272.0, 69.0, 14.2; 27.0,  8.0,  9.0)

 mb = 4.7 ( 11)  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     11:07:32.61   0.0    3.2  12                                   ERM 
 MAJO ePn     11:07:42.01  -0.6    4.0 235                                   MAJO
 MJB9 ePn     11:07:42.05  -0.5    4.0 235                                   MJB9
 INU  ePn     11:08:04.07   1.0    5.4 232                                   INU 
 USA0BePn     11:08:57.01   0.6    9.4 308                                   USA0
 KS15 ePn     11:09:24.30  -0.1   11.4 268                                   KS15
 MA2  eP      11:11:27.96   0.8   21.4  12 b:7.7+0 .80 4.1                   MA2 
 YULB eP      11:11:49.54   0.0   23.6 235 b:9.4+0 1.1 4.2                   YULB
 SONA1eP      11:12:23.72  -0.1   27.3 301                                   SONA
 ZALV eP      11:14:22.32  -0.4   41.2 311                                   ZALV
 ZAA0 eP      11:14:22.47  -0.3   41.2 311 b:7.1+0 .60 4.6                   ZAA0
 MK01 eP      11:14:43.39  -0.1   43.7 301                                   MK01
 MK31 eP      11:14:43.50   0.0   43.7 301                                   MK31
 MKAR eP      11:14:43.52   0.0   43.7 301 b:4.6+1 .60 5.4                   MKAR
 MAKZ eP      11:14:45.19   0.0   43.9 301 b:7.8+0 1.0 4.4                   MAKZ
 KURK eP      11:14:55.94  -0.3   45.3 307 b:2.4+1 .95 5.0                   KURK
 EGAK eP      11:15:31.42  -1.1   50.0  33 b:1.1+1 1.0 4.8                   EGAK
 BRVK eP      11:15:31.64   0.1   49.9 311 b:7.4+0 .55 4.9                   BRVK
 KKAR eP      11:15:53.35   0.0   52.8 299                                   KKAR
 KK31 eP      11:15:53.35   0.0   52.8 299                                   KK31
 ARU  eP      11:16:12.40   0.1   55.4 318 b:1.1+1 1.0 4.8                   ARU 
 CHGR eP      11:16:13.23   0.1   55.5 295 b:7.1+0 .74 4.8                   CHGR
 ABKAReP      11:16:25.30  -0.2   57.3 310                                   ABKA
 WB2  eP      11:16:37.65   0.1   59.0 189                                   WB2 
 BUR04eP      11:18:33.47   1.2   77.3 322                                   BUR0



 Generated 2013 FEB 18 at 11:23 UTC

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