Phase Data

Explanation of Parameters


      7 APR 2013  ( 97)

     ot  = 14:09:19.21   +/-   0.59              NEAR EAST COAST OF HONSHU, JAPAN
     lat =      35.492   +/-    3.4
     lon =     140.777   +/-    3.4              MAGNITUDE 4.8 (GS)       
     dep =        60.5   +/-    5.5   

     95 km (59 miles) ESE of TOKYO, Japan (pop 8,489,000)
     101 km (63 miles) SSE of Mito, Honshu, Japan (pop 262,000)
     104 km (65 miles) E of Yokohama, Honshu, Japan (pop 3,579,000)
     143 km (89 miles) SE of Utsunomiya, Honshu, Japan (pop 457,000)

     nph =  129 of 133    se = 0.87    FE=228                            A   

     error ellipse = (267.9, 66.9,  9.0;162.6,  6.4,  5.3; 70.0, 22.1,  3.9)

 mb = 4.8 ( 99)  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     14:09:55.86  -1.7    2.5 199 L:9.5+0 .45 4.9X g:1.2+0 .80 4.3X JHJ2
 MAJO ePn     14:09:56.04   0.8    2.3 297 L:1.8+0 1.7 4.1X g:4.7-1 .75 3.9X MAJO
 MJB9 ePn     14:09:56.06   0.8    2.3 298 g:4.8-1 .79 3.9X                  MJB9
 INU  ePn     14:10:06.95   1.6    3.1 268 L:2.3+0 2.7 4.6X g:4.1-1 .85 3.9X INU 
 ERM  ePn     14:10:50.88  -5.0X   6.8  15 g:1.5-1 .85 3.9X                  ERM 
 JNU  ePn     14:11:18.12  -1.9    8.5 257                                   JNU 
 KS01 ePn     14:11:47.29  -0.5   10.6 285                                   KS01
 KS15 ePn     14:11:48.21   0.4   10.6 284                                   KS15
 USA0BePn     14:11:53.39  -0.4   11.0 325                                   USA0
 YSS  ePn     14:11:56.93  -4.2X  11.5   7                                   YSS 
 SARN eP      14:13:39.20   0.5   19.2 165 b:4.2+1 1.0 4.6                   SARN
 YHNB eP      14:13:45.29  -0.8   19.9 243 b:1.1+2 1.6 4.9                   YHNB
 PETK eP      14:13:59.51  -0.9   21.3  29                                   PETK
 PEA0BeP      14:13:59.86  -0.6   21.3  29 b:6.1+1 1.1 4.8                   PEA0
 GUMO eP      14:14:12.52   2.9   22.1 169                                   GUMO
 XAN  eP      14:14:47.64  -0.2   26.2 276 b:9.8+0 .50 4.6                   XAN 
 ENH  eP      14:14:52.01  -1.0   26.7 268 b:2.8+1 .85 4.9                   ENH 
 ULN  eP      14:15:01.27  -1.6   27.8 307 b:1.9+1 1.4 4.5                   ULN 
 BILL eP      14:16:10.63  -0.3   35.6  16 b:1.8+1 1.2 4.9                   BILL
 FAKI eP      14:16:39.54  -0.6   39.0 194 b:2.2+1 .90 5.0                   FAKI
 CHTO eP      14:16:51.00  -0.8   40.4 257 b:5.6+0 1.0 4.3                   CHTO
 CM01 eP      14:16:52.27  -1.2   40.6 256                                   CM01
 ZALV eP      14:17:08.75  -0.3   42.6 314                                   ZALV
 ZAA0 eP      14:17:08.99   0.0   42.6 314 b:3.2+1 1.3 4.9                   ZAA0
 ANM  eP      14:17:14.28   0.6   43.2  31 b:1.1+1 1.0 4.5                   ANM 
 MK01 eP      14:17:24.75   0.1   44.5 303                                   MK01
 MK31 eP      14:17:25.01   0.3   44.5 303 b:1.2+1 1.0 4.6                   MK31
 MAKZ eP      14:17:27.05   0.7   44.7 303 b:1.2+1 .90 4.7                   MAKZ
 RDOG eP      14:17:30.10   1.0   45.1  26 b:1.9+1 1.3 4.8                   RDOG
 KURK eP      14:17:40.24   0.1   46.5 309 b:3.5+1 .95 5.3                   KURK
 SOEI eP      14:17:49.42  -0.1   47.6 202 b:5.1+1 .80 5.5                   SOEI
 PRZ  eP      14:17:53.14   0.7   48.0 298 b:4.7+1 1.4 5.3                   PRZ 
 IM3  eP      14:17:53.44  -0.1   48.2  30                                   IM3 
 KDJ  eP      14:18:00.44   0.6   49.0 298 b:2.1+1 1.5 5.0                   KDJ 
 BWN  eP      14:18:07.79   1.0   50.0  32 b:3.9+1 1.1 5.3                   BWN 
 NRN  eP      14:18:08.14   0.2   50.0 297 b:1.0+1 1.1 4.8                   NRN 
 RND  eP      14:18:08.80  -0.2   50.2  33 b:1.4+1 1.2 4.9                   RND 
 WRH  eP      14:18:10.51  -0.7   50.6  32 b:9.7+0 1.1 4.7                   WRH 
 SML  eP      14:18:11.56   0.4   50.5  36 b:6.3+1 1.9 5.3                   SML 
 COLA eP      14:18:11.60  -0.3   50.7  32 b:9.7+0 .95 4.8                   COLA
 MDM  eP      14:18:11.82   1.0   50.5  31 b:1.5+1 .84 5.0                   MDM 
 AAK  eP      14:18:13.57   0.1   50.8 299 b:6.0+0 .80 4.7                   AAK 
 HDA  eP      14:18:14.19  -0.8   51.1  32 b:8.8+0 .92 4.8                   HDA 
 ILB  eP      14:18:15.00  -0.1   51.1  32 b:9.3+0 .95 4.8                   ILB 
 IL1  eP      14:18:15.12   0.0   51.1  32                                   IL1 
 BRVK eP      14:18:17.02   0.1   51.3 313 b:1.9+1 1.2 5.0                   BRVK
 KLU  eP      14:18:20.51   0.5   51.7  36 b:1.7+1 1.1 5.0                   KLU 
 FYU  eP      14:18:21.20   1.5   51.7  29 b:3.4+1 1.4 5.2                   FYU 
 HARP eP      14:18:22.81   0.8   52.0  35 b:2.8+1 1.2 5.1                   HARP
 SCRK eP      14:18:24.15  -0.8   52.4  33 b:9.5+0 .96 4.8                   SCRK
 DOT  eP      14:18:24.16  -0.7   52.4  33 b:6.9+0 1.0 4.6                   DOT 
 MENT eP      14:18:26.37  -0.1   52.6  34 b:1.0+1 .96 4.8                   MENT
 GSI  eP      14:18:26.46  -0.4   52.6 240 b:5.7+1 1.2 5.5                   GSI 
 EGAK eP      14:18:33.43   0.2   53.5  31 b:9.2+0 1.2 4.7                   EGAK
 KK31 eP      14:18:33.46   0.3   53.5 301 b:2.8+1 1.3 5.1                   KK31
 KKAR eP      14:18:33.76   0.6   53.5 301 b:2.8+1 1.3 5.1                   KKAR
 NIL  eP      14:18:41.67  -0.1   54.6 289 b:1.7+1 .95 5.1                   NIL 
 GAR  eP      14:18:44.06   0.2   54.9 296                                   GAR 
 EPYK eP      14:18:44.75  -0.1   55.1  29 b:1.8+1 .85 5.1                   EPYK
 FITZ eP      14:18:46.56   0.7   55.2 198 b:3.9+1 1.5 5.2                   FITZ
 WRAB eP      14:18:46.68  -1.0   55.5 187 b:6.4+1 1.4 5.5                   WRAB
 WB2  eP      14:18:47.65  -0.1   55.5 187                                   WB2 
 INK  eP      14:18:51.12   0.1   56.0  27 b:2.0+1 1.5 4.9                   INK 
 ARU  eP      14:18:59.80   0.2   57.2 319 b:2.5+1 .90 5.3                   ARU 
 ABKAReP      14:19:09.29   0.0   58.5 311 b:2.1+1 1.2 5.1                   ABKA
 AS01 eP      14:19:13.54  -0.4   59.2 187                                   AS01
 AS31 eP      14:19:14.29   0.3   59.2 187 b:2.3+0 .55 4.5                   AS31
 DZM  eP      14:19:37.07   2.5   62.2 153 b:3.2+1 1.2 5.3                   DZM 
 RES  eP      14:19:47.14   0.0   64.2  14 b:1.3+1 .85 4.9                   RES 
 GYA0BeP      14:19:48.83   1.5   64.1 299 b:1.1+1 1.0 4.8                   GYA0
 YKB5 eP      14:19:54.12  -0.9   65.4  30                                   YKB5
 STKA eP      14:20:06.12   0.4   67.0 179 b:1.4+0 .95 3.9                   STKA
 FIA1 eP      14:20:23.66   0.0   69.9 332                                   FIA1
 KIV  eP      14:20:34.62   0.8   71.5 311 b:7.4+1 1.0 5.6                   KIV 
 SUMG eP      14:20:39.06   1.3   72.2 360 b:2.2+1 1.1 5.0                   SUMG
 GNI  eP      14:20:39.70   1.7   72.2 307 b:2.0+1 1.0 5.0                   GNI 
 SCO  eP      14:20:46.57   1.2   73.6 354 b:1.8+1 1.5 4.8                   SCO 
 LRM  eP      14:20:53.85  -4.1X  75.6  44                                   LRM 
 KIEV eP      14:20:54.28  -0.9   75.2 322 b:1.7+1 1.1 4.9                   KIEV
 AK11 eP      14:20:54.30  -1.0   75.2 322                                   AK11
 AKBB eP      14:20:54.35  -0.7   75.2 322 b:1.6+1 1.0 4.9                   AKBB
 CMB  eP      14:20:55.40   0.1   75.2  54 b:4.6+0 1.0 4.4                   CMB 
 NC405eP      14:20:55.59   0.7   75.2 337 b:7.2+1 1.8 5.3                   NC40
 FFC  eP      14:20:55.74   0.2   75.3  32 b:9.3+0 1.1 4.6                   FFC 
 NB201eP      14:20:55.88  -0.1   75.4 337 b:4.0+1 1.4 5.2                   NB20
 HRY  eP      14:20:56.19  -0.5   75.4  43                                   HRY 
 NC204eP      14:20:56.49   0.5   75.4 338 b:1.4+1 .85 4.9                   NC20
 NBO00eP      14:20:56.78  -0.2   75.6 337 b:2.2+1 1.1 5.0                   NBO0
 KVN  eP      14:21:00.90   0.1   76.1  52 b:5.7+0 .96 4.5                   KVN 
 BOZ  eP      14:21:01.28   0.3   76.2  44 b:8.5+0 1.2 4.6                   BOZ 
 NV01 eP      14:21:02.56   0.5   76.3  53                                   NV01
 FLWY eP      14:21:08.80  -0.6   77.7  44 b:2.3+1 1.5 4.9                   FLWY
 TPAW eP      14:21:09.42  -1.3   77.9  45 b:6.7+0 1.0 4.6                   TPAW
 FXWY eP      14:21:09.62  -0.3   77.7  45 b:4.3+0 1.1 4.4                   FXWY
 H17A eP      14:21:10.23   1.5   77.5  44 b:1.5+1 1.0 4.9                   H17A
 HVU  eP      14:21:10.97   0.6   77.8  47 b:1.1+1 1.3 4.7                   HVU 
 R11A eP      14:21:11.95  -0.1   78.1  51 b:1.1+1 1.6 4.6                   R11A
 TPNV eP      14:21:14.23   0.0   78.5  53 b:9.8+0 1.2 4.6                   TPNV
 DUG  eP      14:21:15.79   0.3   78.8  49 b:1.1+1 1.3 4.6                   DUG 
 PDAR eP      14:21:17.06  -0.5   79.1  45                                   PDAR
 CTU  eP      14:21:17.22  -0.2   79.1  48 b:4.6+0 .88 4.4                   CTU 
 PSUT eP      14:21:17.26  -0.3   79.1  50 b:8.8+0 1.2 4.5                   PSUT
 BUR08eP      14:21:17.87   0.2   79.2 322 b:8.7+0 1.1 4.6                   BUR0
 KWP  eP      14:21:18.16   1.3   79.1 324 b:4.0+2 1.2 6.2X                  KWP 
 BR131eP      14:21:19.14  -0.3   79.5 311 b:6.1+0 .95 4.5                   BR13
 NLU  eP      14:21:19.65   0.8   79.4  48 b:6.3+0 1.1 4.4                   NLU 
 OJC  eP      14:21:20.98  -1.1   80.0 326 b:2.7+1 1.3 5.0                   OJC 
 P17A eP      14:21:23.30  -1.5   80.5  48 b:5.8+0 .82 4.5                   P17A
 KNB  eP      14:21:26.78   0.8   80.7  51 b:2.7+1 1.5 4.9                   KNB 
 SRU  eP      14:21:27.37   0.6   80.8  48 b:6.0+0 .66 4.7                   SRU 
 U15A eP      14:21:29.90   0.1   81.4  51 b:4.8+0 1.0 4.4                   U15A
 Y12C eP      14:21:30.29  -0.1   81.5  55 b:1.4+1 1.2 4.8                   Y12C
 MORC eP      14:21:30.40   1.2   81.4 327 b:1.2+1 1.2 4.7                   MORC
 CLL  eP      14:21:33.49   0.1   82.2 330 b:1.2+1 .90 4.9                   CLL 
 N23A eP      14:21:35.19   0.1   82.4  45 b:1.5+1 1.2 4.8                   N23A
 X16A eP      14:21:37.42  -1.7   83.2  52 b:6.8+0 1.1 4.5                   X16A
 KHC  eP      14:21:40.79   0.0   83.6 328 b:8.6+0 1.4 4.6                   KHC 
 GEA0 eP      14:21:41.34  -0.4   83.8 328                                   GEA0
 VTS  eP      14:21:41.59   0.2   83.6 319 b:2.0+1 1.2 5.0                   VTS 
 GRA1 eP      14:21:42.69  -0.9   84.1 330 b:5.2+1 1.4 5.4                   GRA1
 GRFO eP      14:21:42.81  -0.8   84.1 330 b:4.0+1 1.3 5.3                   GRFO
 SDCO eP      14:21:45.32  -1.8   84.7  47 b:6.1+0 1.2 4.5                   SDCO
 ECSD eP      14:21:48.06  -2.2   85.4  38 b:2.1+1 1.5 5.0                   ECSD
 TUC  eP      14:21:48.85   1.0   84.9  54 b:6.6+0 .95 4.7                   TUC 
 ANMO eP      14:21:51.84  -1.4   86.0  49 b:4.7+0 1.0 4.6                   ANMO
 BFO  eP      14:21:54.31  -0.6   86.4 330 b:1.6+1 1.1 5.1                   BFO 
 FUORNeP      14:21:58.07   0.2   86.9 328 b:1.8+1 1.1 5.1                   FUOR
 TX31 eP      14:22:19.36   0.0   91.5  52 b:2.0+1 1.7 5.2                   TX31
 LPAZ ePKPdf  14:28:57.16   1.4  147.9  61                                   LPAZ
 MNMC ePKPbc  14:28:59.01  -1.2  148.6  67                                   MNMC
 PB11 ePKPbc  14:29:00.78  -0.1  149.0  68                                   PB11
 LVC  ePKPbc  14:29:05.51  -0.8  151.2  72                                   LVC 
      ePKPab  14:29:14.76   0.5X



 Generated 2013 APR  7 at 15:20 UTC

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