Phase Data

Explanation of Parameters


      3 MAR 2013  ( 62)

     ot  = 11:14:42.58   +/-   2.01              NEAR EAST COAST OF HONSHU, JAPAN
     lat =      35.816   +/-   11.1
     lon =     140.749   +/-   12.3              MAGNITUDE 4.2 (GS)       
     dep =        42.7   +/-    8.4   

     66 km (41 miles) SSE of Mito, Honshu, Japan (pop 262,000)
     91 km (57 miles) E of TOKYO, Japan (pop 8,489,000)
     109 km (68 miles) ENE of Yokohama, Honshu, Japan (pop 3,579,000)
     113 km (70 miles) SE of Utsunomiya, Honshu, Japan (pop 457,000)

     nph =   31 of  31    se = 0.99    FE=228                            A   

     error ellipse = (281.0,  1.0, 19.0;190.0, 21.0, 17.6; 15.0, 68.0, 11.9)

 mb = 4.2 ( 13)  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
 MAJO ePn     11:15:16.61   0.2    2.2 290                                   MAJO
 MJB9 ePn     11:15:16.66   0.2    2.2 290                                   MJB9
 JHJ2 ePn     11:15:26.19   1.3    2.8 196                                   JHJ2
 INU  ePn     11:15:31.09   2.6    3.1 262                                   INU 
 ERM  ePn     11:16:12.57  -2.6    6.5  16                                   ERM 
 JNU  ePn     11:16:48.99   4.7    8.6 255                                   JNU 
 YSS  ePn     11:17:18.81  -1.6   11.2   7                                   YSS 
 MA2  eP      11:20:00.40   1.4   24.7  12 b:5.1+0 .80 4.1                   MA2 
 SONA1eP      11:20:29.39  -0.4   28.0 306                                   SONA
 ZAA0 eP      11:22:31.86  -0.4   42.3 313 b:3.4+0 .70 4.2                   ZAA0
 ZALV eP      11:22:32.00  -0.2   42.3 313                                   ZALV
 MK01 eP      11:22:47.84  -0.4   44.3 303                                   MK01
 MK31 eP      11:22:48.16  -0.1   44.3 303                                   MK31
 MAKZ eP      11:22:49.99   0.0   44.5 303 b:2.3+0 .80 4.1                   MAKZ
 KURK eP      11:23:02.94  -0.7   46.3 309 b:4.3+0 .80 4.4                   KURK
 MDM  eP      11:23:34.57   0.6   50.2  32 b:5.7+0 1.1 4.5                   MDM 
 IL1  eP      11:23:37.63  -0.7   50.8  32                                   IL1 
 RIDG eP      11:23:44.68  -0.9   51.8  33 b:1.8+0 .88 4.1                   RIDG
 SCRK eP      11:23:47.95  -0.3   52.1  33 b:5.3+0 1.1 4.4                   SCRK
 EGAK eP      11:23:55.93  -0.6   53.3  32 b:2.8+0 1.1 4.2                   EGAK
 EPYK eP      11:24:08.68   0.5   54.8  29 b:5.7+0 .95 4.6                   EPYK
 INK  eP      11:24:14.25   0.0   55.7  27 b:2.2+0 1.0 4.1                   INK 
 WRAB eP      11:24:14.27  -1.0   55.8 187 b:8.7+0 1.1 4.7                   WRAB
 WB2  eP      11:24:14.49  -0.8   55.8 187                                   WB2 
 HYT  eP      11:24:15.57   1.8   55.6  36 b:1.9+0 .86 4.2                   HYT 
 WHY  eP      11:24:23.70   0.8   56.9  36 b:2.1+0 1.1 4.1                   WHY 
 ABKAReP      11:24:32.16  -0.9   58.3 311                                   ABKA
 NC204eP      11:26:21.07   1.5   75.1 338                                   NC20
 LPAZ ePKPbc  11:34:24.07   0.1  147.8  60                                   LPAZ
 PB11 ePKPbc  11:34:26.23   0.0  148.9  67                                   PB11
 MNMC ePKPbc  11:34:26.88   1.4  148.5  66                                   MNMC



 Generated 2013 MAR  3 at 11:36 UTC

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