Phase Data

Explanation of Parameters


     23 FEB 2013  ( 54)

     ot  = 14:40:14.86   +/-   2.99              NEAR EAST COAST OF HONSHU, JAPAN
     lat =      35.103   +/-    9.5
     lon =     140.992   +/-   12.4              MAGNITUDE 4.7 (GS)       
     dep =        27.5   +/-    5.8   

     129 km (80 miles) ESE of Yokohama, Honshu, Japan (pop 3,579,000)
     130 km (81 miles) ESE of TOKYO, Japan (pop 8,489,000)
     148 km (92 miles) SSE of Mito, Honshu, Japan (pop 262,000)
     190 km (118 miles) SSE of Utsunomiya, Honshu, Japan

     nph =   41 of  41    se = 1.47    FE=228                            A   

     error ellipse = (106.0,  6.0, 19.4;196.0,  3.0, 14.1;313.0, 83.0,  8.6)

 mb = 4.7 ( 25)  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
 JHJ2 ePn     14:40:51.65   1.9    2.2 207                                   JHJ2
 MAJO ePn     14:40:59.07   2.8    2.7 303                                   MAJO
 MJB9 ePn     14:40:59.28   3.0    2.7 303                                   MJB9
 INU  ePn     14:41:06.51   2.4    3.3 276                                   INU 
 ERM  ePn     14:41:53.56  -3.4    7.1  13                                   ERM 
 YSS  ePn     14:42:59.31  -3.6   11.9   6                                   YSS 
 BJT  eP      14:44:45.74  -2.3   20.3 291 b:2.4+1 .70 4.7                   BJT 
 MA2  eP      14:45:37.84  -1.1   25.3  12 b:1.6+1 .90 4.7                   MA2 
 XAN  eP      14:45:48.47  -0.4   26.4 277 b:1.9+1 1.2 4.6                   XAN 
 ENH  eP      14:45:51.95  -1.5   26.9 269 b:1.7+1 .80 4.7                   ENH 
 PBKT eP      14:47:48.34  -0.3   40.1 253 b:9.2+0 .86 4.5                   PBKT
 ZALV eP      14:48:10.94  -0.5   43.0 314                                   ZALV
 ZAA0 eP      14:48:11.04  -0.4   43.0 314 b:7.5+0 .80 4.5                   ZAA0
 ANM  eP      14:48:16.31   1.4   43.4  30 b:6.9+0 1.2 4.3                   ANM 
 MK01 eP      14:48:26.56  -0.2   44.9 304                                   MK01
 MK31 eP      14:48:26.69  -0.1   44.9 304                                   MK31
 MKAR eP      14:48:26.84   0.0   44.9 304 b:4.9+1 .80 5.5                   MKAR
 MAKZ eP      14:48:29.17   0.6   45.1 304 b:9.3+0 .90 4.7                   MAKZ
 JAGI eP      14:49:05.06  -3.4   50.2 216 b:9.1+1 .90 5.8                   JAGI
 AAK  eP      14:49:16.36   1.0   51.1 300 b:7.9+0 .85 4.7                   AAK 
 BRVK eP      14:49:18.55  -0.7   51.7 314 b:7.4+0 .95 4.6                   BRVK
 ARSB eP      14:49:27.31   1.2   52.6 299 b:1.2+1 .90 4.8                   ARSB
 KKAR eP      14:49:36.20   1.1   53.8 301                                   KKAR
 KK31 eP      14:49:36.20   1.1   53.8 301                                   KK31
 WB2  eP      14:49:45.82   1.2   55.1 188 b:2.5+1 .80 5.3                   WB2 
 WRAB eP      14:49:45.88   1.4   55.1 188 b:2.5+1 .80 5.3                   WRAB
 GAR  eP      14:49:46.62   1.0   55.2 297 b:2.7+1 1.3 5.1                   GAR 
 CHGR eP      14:49:53.52   1.0   56.2 297 b:3.4+1 .80 5.4                   CHGR
 ARU  eP      14:50:01.66  -0.3   57.6 319 b:1.9+1 1.1 5.1                   ARU 
 AS01 eP      14:50:12.70   1.8   58.8 188                                   AS01
 AS31 eP      14:50:12.84   1.9   58.8 188 b:2.6+0 .80 4.4                   AS31
 RES  eP      14:50:47.92  -1.0   64.6  14 b:5.1+0 .90 4.6                   RES 
 YKB5 epP     14:51:03.74  -0.6   65.7  30                                   YKB5
 AKBB eP      14:51:55.86  -1.2   75.6 323 b:6.0+0 .55 4.8                   AKBB
 KIEV eP      14:51:56.15  -0.9   75.6 323 b:5.5+0 .60 4.8                   KIEV
 NC204eP      14:51:58.37   0.3   75.8 338                                   NC20
 PDAR eP      14:52:17.99   0.0   79.3  45                                   PDAR
 SRU  eP      14:52:28.22   1.1   80.9  48 b:3.9+0 .70 4.5                   SRU 
 PV14 eP      14:52:33.55  -0.9   82.3  48 b:7.5+0 .94 4.7                   PV14
 CLL  eP      14:52:35.45   0.2   82.6 330 b:7.0+0 .70 4.8                   CLL 
 LCO  ePKPbc  15:00:10.14   1.0  152.5  85                                   LCO 



 Generated 2013 FEB 23 at 15:40 UTC

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