Phase Data

Explanation of Parameters


     13 FEB 2013  ( 44)

     ot  = 19:52:42.70   +/-   1.53              OFF EAST COAST OF HONSHU, JAPAN 
     lat =      37.626   +/-    9.2
     lon =     143.732   +/-   11.4              MAGNITUDE 4.7 (GS)       
     dep =        34.4   +/-    5.0   

     260 km (161 miles) ESE of Sendai, Honshu, Japan
     261 km (162 miles) ENE of Iwaki, Honshu, Japan
     288 km (179 miles) E of Fukushima, Honshu, Japan
     416 km (258 miles) ENE of TOKYO, Japan

     nph =   91 of 116    se = 0.76    FE=229                            A   

     error ellipse = (113.0,  6.0, 18.1;204.0,  9.0, 13.4;351.0, 78.0,  7.2)

 mb = 4.7 ( 49)  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     19:53:44.11  -3.0X   4.4 354                                   ERM 
 MJB9 ePn     19:53:49.53   0.4    4.6 258                                   MJB9
 MAJO ePn     19:53:49.65   0.5    4.6 258                                   MAJO
      eSn     19:54:38.58  S res =  -2.2 
      eLR     19:55:47.82                                  
 INU  ePn     19:54:07.35   0.3    5.9 249                                   INU 
 ASAJ ePn     19:54:14.00  -2.4    6.5 353                                   ASAJ
      eSn     19:55:22.63  S res =  -7.2 
 YSS  ePn     19:54:54.77  -0.2    9.4 356                                   YSS 
 CBIJ ePn     19:55:07.58  -4.3   10.6 188                                   CBIJ
      eSn     19:56:57.47  S res = -11.7 
 USA0BePn     19:55:18.82   0.7   11.0 310                                   USA0
 JNU  ePn     19:55:23.01  -0.3   11.4 251                                   JNU 
 KS01 ePn     19:55:39.21   0.1   12.6 274                                   KS01
 KS15 ePn     19:55:40.02   0.7   12.6 274                                   KS15
 MDJ  ePn     19:55:41.14  -0.1   12.7 308                                   MDJ 
 KLR  ePn     19:56:02.28  -2.7   14.5 327                                   KLR 
      eLR     20:01:33.66                                  
 PEA1 eP      19:56:53.13  -0.2   18.3  28                                   PEA1
      eLR     20:06:31.56                                  
 HIA  eP      19:57:19.09  -2.3   20.8 312 b:8.4+0 .80 4.2                   HIA 
 BJT  eP      19:57:26.77  -2.5   21.6 285 b:2.6+1 .90 4.7                   BJT 
 MA2  eP      19:57:37.40  -0.8   22.4   9                                   MA2 
 SEY  eP      19:58:11.53   0.6   25.9   9                                   SEY 
 XAN  eP      19:58:33.63   0.1   28.3 273 b:1.3+1 1.1 4.5                   XAN 
 ULN  eP      19:58:36.29   0.8   28.6 303 b:1.1+1 1.1 4.5                   ULN 
 SONA1eP      19:58:39.73   0.4   29.0 303                                   SONA
 SONA0eP      19:58:40.46   1.2X  29.0 303                                   SONA
      eLR     20:10:27.38                                  
 ENH  eP      19:58:42.85   1.7   29.2 266 b:3.4+1 .90 5.1                   ENH 
 KMI  eP      19:59:46.63  -1.6   36.9 262 b:6.6+0 .85 4.5                   KMI 
 JAY  eP      20:00:13.20  -1.4X  40.0 185                                   JAY 
 ANM  eP      20:00:15.60   0.8   40.1  31 b:1.1+1 1.4 4.4                   ANM 
 WMQ  eP      20:00:31.27  -1.1   42.2 297 b:6.6+0 .80 4.4                   WMQ 
 ZALV eP      20:00:36.87  -0.7   42.9 312                                   ZALV
 ZAA0 eP      20:00:37.55   0.0   42.9 312 b:1.2+1 .80 4.7                   ZAA0
 ZAA1 eP      20:00:38.05   0.5X  42.9 312                                   ZAA1
 CHTO eP      20:00:41.33   0.6   43.2 257 b:7.1+0 1.3 4.3                   CHTO
 CM31 eP      20:00:43.30   0.9   43.4 257                                   CM31
      eLR     20:19:35.73                                  
 CM01 eP      20:00:43.37   0.9   43.4 257                                   CM01
 LSA  eP      20:00:47.80   0.3   44.0 276 b:8.8+0 1.5 4.3                   LSA 
 IM3  eP      20:00:55.40  -0.5   45.2  31                                   IM3 
 MK01 eP      20:00:57.78   0.2   45.4 302                                   MK01
 MKAR eP      20:00:58.01   0.4   45.4 302 b:4.1+1 1.0 5.3                   MKAR
 MK31 eP      20:00:58.06   0.4   45.4 302                                   MK31
 MK32 eP      20:00:58.30   0.7X  45.4 302                                   MK32
      eLR     20:21:56.88                                  
 MAKZ eP      20:00:59.85   0.6   45.6 302 b:5.2+0 1.0 4.4                   MAKZ
 SUA  eP      20:01:03.76  -0.8   46.3  37 b:1.1+1 1.0 4.8                   SUA 
 MLY  eP      20:01:05.71   0.5   46.4  32 b:1.8+1 1.6 4.8                   MLY 
 TOLK eP      20:01:09.94  -1.0   47.1  27 b:7.1+0 1.1 4.6                   TOLK
 KURK eP      20:01:10.25  -0.2   47.0 308 b:1.9+1 .65 5.2                   KURK
      eP      20:01:11.25   0.8X
 RND  eP      20:01:11.53   0.2   47.1  35 b:3.4+1 1.5 5.1                   RND 
 MDM  eP      20:01:14.55   1.1   47.4  32 b:1.8+1 1.4 4.9                   MDM 
 HDA  eP      20:01:17.61  -0.1   48.0  33 b:3.1+1 1.8 5.0                   HDA 
 ILB  eP      20:01:17.77  -0.1   48.0  33                                   ILB 
 IL1  eP      20:01:18.05   0.1   48.0  33                                   IL1 
 SCRK eP      20:01:28.24   0.3   49.3  34 b:2.8+1 1.7 5.0                   SCRK
 TARG eP      20:01:32.43  -0.1   49.8 297 b:4.9+0 .80 4.6                   TARG
 NRN  eP      20:01:41.18  -1.6   51.2 297 b:3.3+0 .85 4.3                   NRN 
 COEN eP      20:01:44.01   0.5   51.3 181 b:7.6+0 .85 4.7                   COEN
 BRVK eP      20:01:45.33   0.0   51.6 313 b:5.6+0 .80 4.6                   BRVK
 AAK  eP      20:01:47.60   0.1X  51.8 299                                   AAK 
      eP      20:01:48.01   0.5 
 EPYK eP      20:01:50.02   1.1   52.1  30 b:1.5+1 1.2 4.8                   EPYK
 KK31 eP      20:02:06.41   0.0   54.4 301                                   KK31
 KKAR eP      20:02:06.41   0.0   54.4 301                                   KKAR
 GAR  eP      20:02:18.46  -0.3   56.1 296 b:1.3+1 .98 4.9                   GAR 
 NIL  eP      20:02:18.87  -0.3   56.2 289 b:9.1+0 1.0 4.8                   NIL 
 ARU  eP      20:02:25.87   0.3   57.1 319 b:8.9+0 1.0 4.8                   ARU 
 WB2  eP      20:02:30.31  -1.2   57.9 190                                   WB2 
      eP      20:02:30.99  -0.6 
 WRAB eP      20:02:30.64  -0.8   57.9 190 b:1.7+1 .75 5.2                   WRAB
 WR1  eP      20:02:31.35  -0.2X  57.9 191 b:1.8+1 .80 5.2                   WR1 
      ePcP    20:03:24.32   0.8 
 ABKAReP      20:02:38.33  -0.2   59.0 311                                   ABKA
 AKTO eP      20:02:43.20   0.0X  59.6 312                                   AKTO
 RES  eP      20:02:55.60  -0.2   61.6  15 b:3.1+0 .90 4.4                   RES 
 AS31 eP      20:02:57.13   0.0   61.7 190 b:1.5+0 .65 4.3                   AS31
 AS01 eP      20:02:57.22   0.1   61.7 190                                   AS01
 ARA0 eP      20:03:13.68   0.9   64.1 340                                   ARA0
 FIA0 eP      20:03:45.33   0.2X  69.1 333                                   FIA0
      eLR     20:36:02.93                                  
 STKA eP      20:03:45.79   0.3   69.2 182 b:2.5+0 1.4 4.1                   STKA
 KIV  eP      20:04:02.70   0.3   71.9 312 b:1.2+1 .90 4.9                   KIV 
 KBZ  eP      20:04:03.33   1.1X  71.9 312                                   KBZ 
 FFC  eP      20:04:03.71  -0.1   72.2  34 b:3.3+0 .85 4.4                   FFC 
 MCMT eP      20:04:06.29  -1.6   72.8  46                                   MCMT
 GNI  eP      20:04:07.73  -0.3   72.8 308                                   GNI 
 BOZ  eP      20:04:09.66   0.7   73.0  45 b:2.6+0 .70 4.3                   BOZ 
 NV01 eP      20:04:09.92  -0.2   73.2  54                                   NV01
 NB200eP      20:04:17.32   0.9X  74.3 338                                   NB20
      eLR     20:39:50.02                                  
 AKBB eP      20:04:18.60  -1.4   75.0 323 b:6.4+0 .95 4.6                   AKBB
 MOOW eP      20:04:18.95   0.2   74.6  46 b:1.2+1 1.9 4.5                   MOOW
 IMW  eP      20:04:18.96   1.3   74.4  46 b:3.9+0 .80 4.5                   IMW 
 FXWY eP      20:04:19.17   1.0   74.5  47 b:2.2+0 .90 4.1                   FXWY
 FRB  eP      20:04:24.45   0.0X  75.8  14                                   FRB 
      eP      20:04:24.45   0.0X
 PD31 eP      20:04:25.90  -0.2   75.9  47                                   PD31
 PDAR eP      20:04:26.03  -0.1   75.9  47                                   PDAR
 SRU  eP      20:04:35.90   0.2   77.6  50 b:8.1+0 .68 4.9                   SRU 
 BUR08eP      20:04:43.12   0.2   79.0 323                                   BUR0
 PV01 eP      20:04:43.71  -2.1   79.4  50 b:6.4+0 .78 4.7                   PV01
 BUR04eP      20:04:43.74   0.8   79.0 323                                   BUR0
 PV17 eP      20:04:44.59   0.7   79.1  50 b:1.2+1 .70 5.0                   PV17
 BR101eP      20:04:49.15   1.4   79.8 313                                   BR10
 VRAC eP      20:04:58.99   2.0X  81.6 328                                   VRAC
 LENM eP      20:05:05.52   0.9   83.0  52                                   LENM
 LTX  eP      20:05:30.73  -0.2X  88.3  54                                   LTX 
 TZTN eP      20:05:54.38  -3.8   94.2  36 b:2.2+1 1.2 5.5                   TZTN
 BLA  eP      20:05:58.28  -4.0   95.1  34 b:5.2+1 1.4 5.8                   BLA 
 LPAZ ePKPdf  20:12:16.98  -0.2  144.8  61                                   LPAZ
 PPT  eLR     20:34:30.93         83.3 118                                   PPT 



 Generated 2013 MAR 14 at 00:04 UTC

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