Phase Data

Explanation of Parameters


      2 APR 2013  ( 92)

     ot  = 13:06:02.34   +/-   1.60              OFF EAST COAST OF HONSHU, JAPAN 
     lat =      39.592   +/-    5.4
     lon =     143.177   +/-    5.1              MAGNITUDE 4.6 (GS)       
     dep =        28.7   +/-   11.9   

     174 km (108 miles) E of Morioka, Honshu, Japan
     177 km (110 miles) SE of Hachinohe, Honshu, Japan
     248 km (154 miles) ESE of Aomori, Honshu, Japan
     529 km (328 miles) NE of TOKYO, Japan

     nph =   45 of  45    se = 0.81    FE=229                            A   

     error ellipse = (274.6, 80.7, 18.4;141.4,  6.4,  9.8; 50.6,  6.7,  5.0)

 mb = 4.6 ( 26)  ML = 4.0 (  2)  mblg = 3.1 (  4)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 ERM  ePn     13:06:39.38  -0.6    2.4 360 L:1.4+0 1.0 4.0  g:1.3-1 .75 3.3  ERM 
 MAJO ePn     13:07:15.82   0.9    5.0 234 L:1.3-1 1.8 4.0  g:4.0-2 .93 3.1  MAJO
 MJB9 ePn     13:07:16.06   1.1    5.0 234 g:4.0-2 .93 3.1                   MJB9
 INU  ePn     13:07:36.33   0.6    6.5 231 g:4.0-2 1.1 3.2                   INU 
 YSS  ePn     13:07:47.55  -0.3    7.4 358                                   YSS 
 MDJ  ePn     13:08:41.64   0.3   11.3 301                                   MDJ 
 JNU  ePn     13:08:49.06   0.0   11.8 241                                   JNU 
 KS01 ePn     13:08:54.74   1.2   12.2 265                                   KS01
 PEA0BePn     13:09:54.19  -0.9   16.8  32 b:3.4+1 1.2 4.3                   PEA0
 PETK ePn     13:09:54.55  -0.6   16.8  32                                   PETK
 JOW  ePn     13:10:06.40  -1.4   17.8 229 b:2.7+2 2.0 5.0                   JOW 
 HIA  eP      13:10:22.38  -2.1   19.3 308 b:1.5+1 .80 4.3                   HIA 
 ULN  eP      13:11:43.96   0.5   27.2 300 b:1.8+1 1.3 4.6                   ULN 
 ENH  eP      13:11:59.02  -0.7   29.0 262 b:1.6+1 .85 4.8                   ENH 
 WMQ  eP      13:13:42.86   0.2   41.0 295 b:1.0+1 .85 4.6                   WMQ 
 ZAA0 eP      13:13:44.46  -0.3   41.3 310 b:6.1+0 .90 4.3                   ZAA0
 ZALV eP      13:13:44.99   0.2   41.3 310                                   ZALV
 CM01 eP      13:14:01.66  -1.8   43.5 254                                   CM01
 MK01 eP      13:14:07.04   0.1   44.0 300                                   MK01
 MK31 eP      13:14:07.34   0.4   44.0 300 b:6.6+0 .85 4.5                   MK31
 MAKZ eP      13:14:08.75   0.1   44.2 300 b:9.5+0 1.0 4.6                   MAKZ
 KURK eP      13:14:19.10   0.3   45.5 306 b:1.3+1 .75 4.9                   KURK
 MDM  eP      13:14:24.10   1.2   46.0  33 b:5.5+0 1.0 4.4                   MDM 
 IL1  eP      13:14:27.02  -0.4   46.6  34                                   IL1 
 ILB  eP      13:14:27.25  -0.1   46.6  34 b:2.9+0 .75 4.3                   ILB 
 PRP  eP      13:14:31.53  -0.2   47.1  33 b:3.5+0 .92 4.4                   PRP 
 MENT eP      13:14:40.23   0.7   48.1  36 b:2.1+1 1.7 4.9                   MENT
 BRVK eP      13:14:52.90  -0.6   50.0 311 b:5.9+0 .80 4.7                   BRVK
 AAK  eP      13:14:58.20   0.0   50.5 297                                   AAK 
 EPYK eP      13:14:59.05   0.7   50.6  31 b:7.5+0 1.0 4.6                   EPYK
 HYT  eP      13:15:06.06   1.5   51.4  38 b:7.2+0 .94 4.6                   HYT 
 ARSB eP      13:15:09.21  -0.5   52.1 296 b:1.1+1 1.0 4.7                   ARSB
 NIL  eP      13:15:32.30   0.0   55.2 287 b:1.7+1 1.1 5.0                   NIL 
 ARU  eP      13:15:33.82   0.3   55.4 318 b:1.5+1 .90 5.0                   ARU 
 ABKAReP      13:15:47.86   0.1   57.4 309 b:4.0+0 .70 4.6                   ABKA
 WB2  eP      13:16:02.90  -2.0   59.8 190                                   WB2 
 RES  eP      13:16:03.94  -0.2   59.8  15 b:5.1+0 1.0 4.6                   RES 
 YKB5 eP      13:16:12.29   0.3   60.9  31                                   YKB5
 FIA1 eP      13:16:53.28  -0.1   67.2 332                                   FIA1
 BEKR eP      13:17:13.10   0.2   70.2  54 b:1.1+1 1.5 4.7                   BEKR
 KVN  eP      13:17:24.40   0.0   72.1  54 b:1.3+1 1.6 4.7                   KVN 
 NC204eP      13:17:25.11   0.2   72.3 338 b:1.7+1 1.2 4.9                   NC20
 NV01 eP      13:17:25.90   0.0   72.4  55                                   NV01
 KWP  eP      13:17:52.29   0.9   76.9 325 b:4.1+2 .50 6.7X                  KWP 
 BUR08eP      13:17:53.75   0.5   77.1 322 b:1.7+1 1.8 4.8                   BUR0



 Generated 2013 APR  2 at 14:37 UTC

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