Phase Data

Explanation of Parameters


     18 JAN 2013  ( 18)

     ot  = 03:02:07.63   +/-   2.01              NEAR EAST COAST OF HONSHU, JAPAN
     lat =      40.480   +/-   15.8
     lon =     142.718   +/-   17.4              MAGNITUDE 4.6 (GS)       
     dep =        20.9   +/-    9.2   

     105 km (65 miles) E of Hachinohe, Honshu, Japan (pop 244,000)
     159 km (99 miles) ENE of Morioka, Honshu, Japan (pop 287,000)
     171 km (106 miles) ESE of Aomori, Honshu, Japan
     592 km (368 miles) NNE of TOKYO, Japan

     nph =   29 of  29    se = 0.99    FE=228                            A   

     error ellipse = (131.0, 17.0, 33.9;224.0,  9.0, 15.9;342.0, 69.0,  9.9)

 mb = 4.6 ( 11)  ML = 3.7 (  6)  mblg = 3.4 (  4)  md = 4.4 (  1)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 ERM  ePn     03:02:30.51  -3.7    1.6  12 d:2.1+2     4.4  L:1.4+0 .82 3.5  ERM 
                                           g:3.2-1 .75 3.5 
 ASAJ ePn     03:03:00.49  -2.2    3.6 359 L:2.5-1 2.3 3.6  g:1.0-1 1.1 3.4  ASAJ
 MJB9 ePn     03:03:24.72  -0.7    5.3 224                                   MJB9
 MAJO ePn     03:03:25.50   0.1    5.3 224 L:1.2-1 3.8 3.9                   MAJO
 USA0BePn     03:04:12.64  -0.5    8.8 299                                   USA0
 MDJ  ePn     03:04:38.25   1.0   10.5 297                                   MDJ 
 NACB eP      03:07:21.21  -0.1   24.0 234 b:4.6+1 1.0 5.0                   NACB
 SONA1eP      03:07:48.51   1.5   26.9 298                                   SONA
 BILL eP      03:08:21.53   2.7   30.5  17 b:1.2+1 1.2 4.6                   BILL
 ZALV eP      03:09:44.10  -0.1   40.4 310                                   ZALV
 ZAA0 eP      03:09:44.70   0.5   40.4 310 b:6.5+0 .80 4.4                   ZAA0
 IM3  eP      03:10:05.99  -0.5   43.2  32                                   IM3 
 MK01 eP      03:10:07.42   0.1   43.2 299                                   MK01
 MK31 eP      03:10:07.57   0.3   43.2 299                                   MK31
 MKAR eP      03:10:07.57   0.3   43.2 299 b:3.0+1 .75 5.1                   MKAR
 MAKZ eP      03:10:09.67   0.7   43.4 299 b:9.1+0 1.0 4.5                   MAKZ
 KURK eP      03:10:18.76   0.0   44.7 306 b:1.1+1 .70 4.8                   KURK
 IL1  eP      03:10:29.79   0.3   46.1  34                                   IL1 
 BRVK eP      03:10:53.42   0.0   49.1 311 b:4.9+0 .60 4.7                   BRVK
 KKAR eP      03:11:17.35  -0.5   52.3 298                                   KKAR
 KK31 eP      03:11:17.35  -0.5   52.3 298                                   KK31
 GAR  eP      03:11:32.40   0.7   54.2 294 b:1.6+1 1.2 4.9                   GAR 
 CHGR eP      03:11:37.50  -1.2   55.2 294 b:3.2+1 .32 5.8                   CHGR
 ABKAReP      03:11:47.50  -0.8   56.5 309                                   ABKA
 KBL  eP      03:11:52.62  -0.7   57.2 290 b:5.4+0 .85 4.6                   KBL 
 RES  eP      03:12:07.09   1.9   59.0  15 b:8.2+0 1.2 4.7                   RES 
 BUR04eP      03:13:52.45  -2.1   76.2 322                                   BUR0
 BUR08eP      03:13:52.80  -1.7   76.2 322                                   BUR0
 SKAG eS      03:18:43.52   1.4   52.4  40                                   SKAG



 Generated 2013 JAN 18 at 03:21 UTC

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