Phase Data

Explanation of Parameters


     28 JAN 2013  ( 28)

     ot  = 20:29:14.84   +/-   2.26              OFF EAST COAST OF HONSHU, JAPAN 
     lat =      37.526   +/-   11.1
     lon =     143.656   +/-   12.4              MAGNITUDE 4.7 (GS)       
     dep =        36.6   +/-    6.7   

     252 km (156 miles) ENE of Iwaki, Honshu, Japan
     257 km (160 miles) ESE of Sendai, Honshu, Japan
     283 km (176 miles) E of Fukushima, Honshu, Japan
     405 km (251 miles) ENE of TOKYO, Japan

     nph =   52 of  58    se = 1.11    FE=229                            A   

     error ellipse = (130.0,  9.0, 22.4;225.0, 26.0, 13.2; 23.0, 61.0,  8.5)

 mb = 4.7 ( 16)  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     20:30:18.69  -1.8    4.5 355                                   ERM 
 MJB9 ePn     20:30:20.04  -0.1    4.5 259                                   MJB9
 MAJO ePn     20:30:20.09   0.0    4.5 259                                   MAJO
      eSn     20:31:11.88  S res =   1.0 
 INU  ePn     20:30:37.80  -0.1    5.8 250                                   INU 
 ASAJ ePn     20:30:49.03  -0.8    6.6 353                                   ASAJ
      eSn     20:32:00.05  S res =  -4.1 
      eLR     20:33:52.23                                  
 YSS  ePn     20:31:27.50  -0.8    9.4 356                                   YSS 
 USA0BePn     20:31:51.64   1.2   11.1 311                                   USA0
 KS15 ePn     20:32:11.25   0.5   12.5 275                                   KS15
 KLR  ePn     20:32:35.95  -1.8   14.5 327                                   KLR 
      eLR     20:37:44.02                                  
 PEA1 eP      20:33:24.55  -2.0   18.4  28                                   PEA1
 MA2  eP      20:34:10.52  -0.8   22.5  10                                   MA2 
 SEY  eP      20:34:44.22   0.3   26.0   9                                   SEY 
 XAN  eP      20:35:05.00   0.1   28.3 274 b:5.9+0 .60 4.4                   XAN 
 ULN  eP      20:35:06.63  -0.8   28.6 303 b:5.2+0 .90 4.2                   ULN 
 ENH  eP      20:35:09.89  -2.6   29.1 266 b:1.3+1 .95 4.6                   ENH 
 SONA1eP      20:35:11.56   0.3   29.0 303                                   SONA
 SONA0eP      20:35:12.59   1.3   29.0 303                                   SONA
      ePcP    20:38:17.27  -1.7 
      eLR     20:46:24.44                                  
 ANM  eP      20:36:48.48   0.8   40.3  31 b:9.5+0 1.0 4.5                   ANM 
 ZALV eP      20:37:10.11   0.5   42.9 312                                   ZALV
 ZAA1 eP      20:37:10.47   0.8   42.9 312                                   ZAA1
      ePcP    20:38:59.73  -0.1 
 CM01 eP      20:37:11.51  -2.2   43.4 257                                   CM01
 CM31 eP      20:37:13.30  -0.3   43.3 257                                   CM31
 MK32 eP      20:37:30.17   0.6   45.4 302                                   MK32
      eLR     20:57:47.16                                  
 KURK eP      20:37:42.49   0.0   47.0 308 b:1.5+1 .80 5.0                   KURK
      eP      20:37:43.47   1.0 
 MDM  eP      20:37:47.92   1.6   47.5  32 b:1.0+1 .84 4.9                   MDM 
 HDA  eP      20:37:51.02   0.5   48.1  33 b:1.3+1 1.4 4.8                   HDA 
 ILB  eP      20:37:51.08   0.4   48.1  33                                   ILB 
 IL1  eP      20:37:51.20   0.5   48.1  33                                   IL1 
 PRP  eP      20:37:54.94  -0.3   48.7  32 b:2.5+1 1.8 4.9                   PRP 
 EPYK eP      20:38:23.36   1.7   52.2  30 b:1.5+1 .95 4.9                   EPYK
 INK  eP      20:38:29.49   1.1   53.1  27 b:3.5+0 .65 4.5                   INK 
 ARU  eP      20:38:58.35   0.6   57.2 319 b:7.4+0 .90 4.7                   ARU 
 WR1  eP      20:39:00.86  -1.8   57.8 190 b:9.1+1 2.0 5.5                   WR1 
 WB2  eP      20:39:01.33  -1.4   57.8 190                                   WB2 
 ABKAReP      20:39:10.62   0.1   59.0 311                                   ABKA
 AS31 eP      20:39:27.13  -1.2   61.5 190 b:1.0+0 .75 4.0                   AS31
 RES  eP      20:39:29.22   0.7   61.7  15 b:3.1+0 .90 4.4                   RES 
 YKB5 eP      20:39:33.37  -0.7   62.5  31                                   YKB5
 ARA0 eP      20:39:45.56   0.4   64.2 340                                   ARA0
 FIA0 eP      20:40:17.46   0.1   69.2 333                                   FIA0
 KBZ  eP      20:40:35.03   0.8   71.9 312                                   KBZ 
 KIV  eP      20:40:35.63   1.2   71.9 312 b:2.0+1 1.5 4.9                   KIV 
 FCC  eP      20:40:39.15   0.2   72.8  27 b:3.7+0 .70 4.5                   FCC 
 NB200eP      20:40:48.62  -0.1   74.4 338                                   NB20
 LTX  eP      20:42:02.78  -0.6   88.4  54                                   LTX 
 GUMO eLR     20:42:05.85         23.9 177                                   GUMO
 MNMC ePKPdf  20:48:48.16  -1.9  145.7  66                                   MNMC
 PB11 ePKPdf  20:48:48.96  -1.6  146.1  67                                   PB11
 HNR  eLR     20:55:50.43         49.1 159                                   HNR 



 Generated 2013 FEB 26 at 00:31 UTC

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