Phase Data

Explanation of Parameters


     26 FEB 2013  ( 57)

     ot  = 12:46:13.84   +/-   2.81              NEAR EAST COAST OF HONSHU, JAPAN
     lat =      38.654   +/-   10.2
     lon =     142.151   +/-   10.4              MAGNITUDE 4.6 (GS)       
     dep =        42.0   +/-    3.4   

     119 km (74 miles) ENE of Sendai, Honshu, Japan (pop 1,024,000)
     145 km (90 miles) SE of Morioka, Honshu, Japan (pop 287,000)
     165 km (102 miles) ENE of Yamagata, Honshu, Japan
     392 km (244 miles) NNE of TOKYO, Japan

     nph =  131 of 132    se = 1.38    FE=228                            A   

     error ellipse = (312.0,  5.0, 17.9;221.0, 10.0, 13.3; 68.0, 78.0,  4.2)

 mb = 4.6 ( 81)  ML = 4.5 ( 10)  mblg = 3.8 (  9)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 ERM  ePn     12:47:03.78  -1.1    3.4  13 L:3.0+0 1.2 4.7                   ERM 
 MAJO ePn     12:47:11.61   2.1    3.8 237 L:6.0-1 1.0 4.1  g:2.0-1 .90 3.7  MAJO
 MJB9 ePn     12:47:12.12   2.6    3.8 237 g:2.0-1 .89 3.7                   MJB9
 INU  ePn     12:47:32.76   2.8    5.3 233 L:5.0-1 1.0 4.5                   INU 
 JHJ2 ePn     12:47:38.75   0.8    5.8 200 L:2.5+0 .55 5.3  g:4.6-1 1.2 4.3  JHJ2
 YSS  ePn     12:48:10.72  -1.0    8.3   3 L:1.1-1 1.4 4.7  g:4.0-2 1.2 3.5  YSS 
 USA0BePn     12:48:30.97   4.0    9.4 309                                   USA0
 JNU  ePn     12:48:48.39   4.2   10.7 242                                   JNU 
 MDJ  ePn     12:48:54.88   4.7   11.1 306                                   MDJ 
 KS01 ePn     12:48:56.59   3.9   11.3 269                                   KS01
 KS15 ePn     12:48:56.62   3.7   11.3 269                                   KS15
 BJT  eP      12:50:43.07  -1.1   20.1 282 b:2.7+1 1.1 4.5                   BJT 
 MA2  eP      12:50:59.15  -1.2   21.6  12 b:3.1+1 1.0 4.7                   MA2 
 TPUB eP      12:51:21.69  -1.9   23.9 236 b:1.7+1 .70 4.7                   TPUB
 ULN  eP      12:51:51.38  -0.2   27.0 301 b:1.4+1 1.0 4.5                   ULN 
 SONA1eP      12:51:54.81  -0.6   27.4 301                                   SONA
 ENH  eP      12:52:00.94  -0.5   28.1 263 b:5.2+1 .75 5.3                   ENH 
 TLY  eP      12:52:15.46  -0.6   29.7 309 b:1.7+1 1.0 4.7                   TLY 
 BILL eP      12:52:37.14  -1.8   32.4  17 b:8.0+0 1.0 4.5                   BILL
 ANM  eP      12:53:45.08   1.7   39.9  32 b:7.4+0 .84 4.5                   ANM 
 WMQ  eP      12:53:50.25   0.4   40.6 295 b:4.3+1 1.0 5.1                   WMQ 
 ZALV eP      12:53:53.17  -1.6   41.3 311                                   ZALV
 ZAA0 eP      12:53:54.22  -0.5   41.3 311 b:1.6+1 .85 4.8                   ZAA0
 CHTO eP      12:54:03.47   0.1   42.3 255                                   CHTO
      epP     12:54:13.46  depth =  -1.4 
 CM01 eP      12:54:04.84  -0.3   42.5 254                                   CM01
 LSA  eP      12:54:08.31   1.2   42.7 274 b:1.1+1 1.1 4.5                   LSA 
 MK01 eP      12:54:14.52  -0.7   43.8 301                                   MK01
 MK31 eP      12:54:14.70  -0.5   43.8 301                                   MK31
 MKAR eP      12:54:14.70  -0.5   43.8 301 b:8.5+1 .85 5.5                   MKAR
 MAKZ eP      12:54:16.44  -0.4   44.0 301 b:1.7+1 .90 4.8                   MAKZ
 IM3  eP      12:54:25.64   1.2   45.0  31                                   IM3 
 KURK eP      12:54:27.33  -0.8   45.4 307 b:4.7+1 .85 5.4                   KURK
 MLY  eP      12:54:35.52   1.5   46.2  33 b:6.5+0 .88 4.6                   MLY 
 TOLK eP      12:54:39.07   0.4   46.8  28                                   TOLK
      epP     12:54:52.22  depth =   2.1 
 MDM  eP      12:54:43.62   1.3   47.2  33                                   MDM 
      epP     12:54:54.60  depth =   0.8 
 IL1  eP      12:54:46.64  -0.2   47.8  33                                   IL1 
 ILB  eP      12:54:46.67  -0.1   47.8  33                                   ILB 
 BRVK eP      12:55:02.92  -0.6   50.0 312 b:1.0+1 .80 4.9                   BRVK
 AAK  eP      12:55:05.31  -0.6   50.3 298 b:3.7+0 .90 4.4                   AAK 
 EPYK eP      12:55:18.52   1.2   51.8  30 b:1.8+1 .80 5.1                   EPYK
 INK  eP      12:55:23.70   0.2   52.7  28 b:5.4+0 .65 4.7                   INK 
 KK31 eP      12:55:24.60  -0.5   52.8 299                                   KK31
 KKAR eP      12:55:24.60  -0.5   52.8 299                                   KKAR
 GAR  eP      12:55:37.17  -0.6   54.5 295 b:1.5+1 .98 5.0                   GAR 
 NIL  eP      12:55:39.03   0.4   54.7 288 b:2.3+1 .90 5.2                   NIL 
 ARU  eP      12:55:43.14  -1.4   55.5 318 b:2.3+1 1.0 5.2                   ARU 
 ABKAReP      12:55:56.60  -0.9   57.3 310                                   ABKA
 WB2  eP      12:56:06.10  -1.4   58.7 189                                   WB2 
 RES  eP      12:56:20.50  -1.1   60.9  15                                   RES 
      epP     12:56:25.75  depth =  -7.8X
 YKB5 eP      12:56:28.97  -1.1   62.1  31                                   YKB5
      epP     12:56:40.79  depth =  -1.2 
 GYA0BeP      12:56:38.52  -1.7   63.6 299 b:9.5+0 .85 4.9                   GYA0
 FIA1 eP      12:57:04.20  -1.9   67.7 332                                   FIA1
      eP      12:57:04.82  -1.2 
 SUMG eP      12:57:14.34  -0.9   69.1   0 b:1.7+1 1.1 5.0                   SUMG
 KIV  eP      12:57:21.67  -1.2   70.3 311 b:5.1+1 1.1 5.4                   KIV 
 BEKR eP      12:57:30.71   0.8   71.4  54 b:3.7+0 .96 4.3                   BEKR
 FCC  eP      12:57:34.27  -0.3   72.3  27                                   FCC 
      epP     12:57:47.92  depth =   1.2 
 YERR eP      12:57:38.37   1.1   72.6  54 b:4.4+0 1.0 4.4                   YERR
 DLMT eP      12:57:38.42   0.4   72.8  45 b:5.0+0 1.0 4.4                   DLMT
 KIEV eP      12:57:40.12  -1.0   73.4 322 b:1.3+1 .90 4.9                   KIEV
 AKBB eP      12:57:40.37  -0.8   73.4 322 b:1.3+1 .85 4.9                   AKBB
 AK11 eP      12:57:40.42  -1.0   73.4 322                                   AK11
 KVN  eP      12:57:42.44   1.1   73.3  53 b:7.8+0 1.1 4.6                   KVN 
 NV01 eP      12:57:42.75   0.0   73.6  54                                   NV01
 YHH  eP      12:57:47.55   1.6   74.1  45 b:1.8+0 1.0 4.0                   YHH 
 FXWY eP      12:57:50.94   1.4   74.7  46 b:4.5+0 1.1 4.3                   FXWY
 H17A eP      12:57:50.97   2.7   74.5  45 b:8.8+0 1.1 4.6                   H17A
      epP     12:58:03.45  depth =   3.3 
 MOOW eP      12:57:51.56   1.5   74.8  46                                   MOOW
      epP     12:58:03.26  depth =   1.3 
 REDW eP      12:57:52.89   1.8   75.0  46 b:5.4+0 1.1 4.4                   REDW
 R11A eP      12:57:53.35   0.5   75.3  53 b:2.5+0 .95 4.2                   R11A
 LAO  eP      12:57:53.97   1.0   75.4  41 b:6.9+0 .95 4.6                   LAO 
 PDAR eP      12:57:56.74  -0.8   76.1  46                                   PDAR
 DUG  eP      12:57:57.15   1.2   75.9  50 b:3.7+0 .95 4.3                   DUG 
 PD31 eP      12:57:57.52   0.0   76.1  46                                   PD31
      epP     12:58:11.37  depth =   2.0 
 PSUT eP      12:57:58.10  -0.3   76.3  52 b:6.0+0 1.1 4.5                   PSUT
 MPU  eP      12:58:01.78   1.1   76.7  49 b:4.4+0 .96 4.4                   MPU 
      epP     12:58:14.86  depth =   2.2 
 BUR04eP      12:58:03.85  -0.6   77.4 322                                   BUR0
 BUR08eP      12:58:04.10  -0.3   77.4 322                                   BUR0
 LCMT eP      12:58:06.14   0.4   77.6  52 b:4.1+0 1.0 4.4                   LCMT
 P17A eP      12:58:06.70   1.2   77.6  49 b:5.2+0 .96 4.5                   P17A
 MTPU eP      12:58:06.83   0.8   77.6  51 b:7.8+0 1.2 4.6                   MTPU
      ePcP    12:58:15.31  -0.9 
 SRU  eP      12:58:06.93  -0.7   77.9  49 b:6.4+0 1.0 4.6                   SRU 
 KNB  eP      12:58:07.31   0.0   77.9  52 b:2.2+0 .96 4.2                   KNB 
      ePcP    12:58:26.51   9.4 
 OJC  eP      12:58:07.39  -0.3   78.0 326 b:1.2+1 .90 4.9                   OJC 
      epP     12:58:20.04  depth =   0.0 
 U15A eP      12:58:10.51  -0.8   78.6  52 b:4.4+0 1.1 4.3                   U15A
 PV03 eP      12:58:12.89  -3.3   79.5  49 b:6.9+0 1.1 4.5                   PV03
 MORC eP      12:58:14.69  -0.3   79.3 327 b:1.3+1 1.0 4.8                   MORC
 PV13 eP      12:58:15.21  -1.4   79.5  49 b:7.2+0 1.0 4.6                   PV13
 PV14 eP      12:58:16.47   1.3   79.3  49 b:1.4+1 1.1 4.8                   PV14
 PV19 eP      12:58:16.64   1.1   79.4  49 b:5.5+0 .92 4.5                   PV19
 PV20 eP      12:58:16.70   1.3   79.3  49 b:8.4+0 .82 4.7                   PV20
 PV04 eP      12:58:16.72   1.2   79.3  49 b:4.3+0 .86 4.4                   PV04
 PV16 eP      12:58:16.74   1.0   79.4  49 b:7.4+0 1.1 4.6                   PV16
 PV17 eP      12:58:16.75   1.0   79.4  49 b:8.1+0 .90 4.7                   PV17
 PV05 eP      12:58:17.32   1.1   79.5  49 b:1.4+1 1.2 4.8                   PV05
 CLL  eP      12:58:17.65  -0.8   80.0 331 b:1.3+1 .90 4.9                   CLL 
 PV01 eP      12:58:18.04   0.5   79.7  49 b:5.7+0 1.2 4.4                   PV01
      epP     12:58:31.02  depth =   1.5 
 SMCO eP      12:58:19.99   1.0   80.0  47 b:2.7+0 1.1 4.1                   SMCO
 X16A eP      12:58:20.03  -1.1   80.4  53 b:1.9+0 .90 4.1                   X16A
 RAYN eP      12:58:21.82  -0.4   80.6 293 b:3.1+0 .70 4.4                   RAYN
 KHC  eP      12:58:26.06  -0.4   81.5 329 b:2.9+0 .90 4.3                   KHC 
 GEA0 eP      12:58:26.57  -0.9   81.7 329                                   GEA0
 GEC2 eP      12:58:27.07  -0.4   81.6 329 b:4.4+0 .93 4.4                   GEC2
 VTS  eP      12:58:28.74  -0.5   81.9 319 b:1.1+1 .90 4.9                   VTS 
 DIVS eP      12:58:30.34  -1.5   82.5 322 b:6.2+0 1.1 4.6                   DIVS
 ANMO eP      12:58:36.32   0.8   83.1  50 b:3.6+0 1.0 4.4                   ANMO
 TTG  eP      12:58:39.54  -0.5   84.1 321 b:2.1+1 1.1 5.1                   TTG 
 LIT  eP      12:58:40.06  -0.5   84.2 318 b:1.6+1 .90 5.1                   LIT 
 ECH  eP      12:58:42.64  -0.5   84.7 332 b:9.3+0 1.0 4.9                   ECH 
 FUORNeP      12:58:43.64  -0.5   84.8 329 b:1.3+1 .80 5.1                   FUOR
      epP     12:58:56.41  depth =   0.2 
 TX31 eP      12:59:02.64  -0.4   88.7  53                                   TX31
      eP      12:59:02.82  -0.1 
 CCM  eP      12:59:05.57   0.2   89.2  39 b:5.2+0 1.0 4.8                   CCM 
 LPAZ ePKPbc  13:05:48.25   0.1  145.4  58                                   LPAZ
 MNMC ePKPdf  13:05:50.94   1.5  146.3  63                                   MNMC
 PB11 ePKPdf  13:05:52.19   2.3  146.7  64                                   PB11
 LCO  ePKPbc  13:06:03.33   0.4  151.2  80                                   LCO 



 Generated 2013 FEB 26 at 13:26 UTC

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