Phase Data

Explanation of Parameters


     23 JAN 2013  ( 23)

     ot  = 21:31:06.99   +/-   2.00              NEAR EAST COAST OF HONSHU, JAPAN
     lat =      37.808   +/-   12.1
     lon =     141.538   +/-   13.7              MAGNITUDE 4.9 (GS)       
     dep =        36.3   +/-    9.9   

     76 km (47 miles) SE of Sendai, Honshu, Japan (pop 1,024,000)
     94 km (59 miles) E of Fukushima, Honshu, Japan (pop 290,000)
     102 km (63 miles) NE of Iwaki, Honshu, Japan (pop 354,000)
     285 km (177 miles) NNE of TOKYO, Japan

     nph =   43 of 203    se = 0.99    FE=228                            A   

     error ellipse = (128.0, 21.0, 25.2;227.0, 22.0, 14.7;359.0, 57.0, 12.4)

 mb = 4.9 ( 85)  ML = 4.8 ( 10)  mblg = 4.2 (  9)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 MJB9 ePn     21:31:54.27   3.0    3.0 246 g:5.5-1 .81 4.1                   MJB9
 MAJO ePn     21:31:54.26   3.0    3.0 246 L:1.9+0 .92 4.3  g:5.4-1 .80 4.1  MAJO
 ERM  ePn     21:32:11.19   0.2    4.4  16 L:1.7+0 1.0 4.7  g:5.2-1 .75 4.2  ERM 
 INU  ePn     21:32:14.76   3.8    4.4 237 L:8.7-1 1.2 4.4  g:5.3-1 1.0 4.2  INU 
 JHJ2 ePn     21:32:21.05   3.1    4.9 197 L:6.9+0 .35 5.5                   JHJ2
      eSn     21:33:14.24  S res =   0.9 
 ASAJ ePn     21:32:38.24   0.2    6.4   7 L:1.5+1 .65 6.3  g:2.9-1 1.2 4.2  ASAJ
 YSS  ePn     21:33:16.86  -0.1    9.2   5 g:5.0-1 .75 4.6                   YSS 
 USA0BePn     21:33:25.18   2.2    9.6 315                                   USA0
 JNU  ePn     21:33:29.94   3.6    9.9 245                                   JNU 
 CBIJ ePn     21:33:35.95  -1.7   10.7 177                                   CBIJ
 KS01 ePn     21:33:43.49   4.1   10.8 272                                   KS01
 KS15 ePn     21:33:43.59   3.9   10.8 273                                   KS15
 MDJ  ePn     21:33:50.34   4.9   11.3 311                                   MDJ 
 SSE  ePn     21:35:13.66  -1.2   18.0 254 b:6.5+1 .75 4.8                   SSE 
 BJT  eP      21:35:33.77  -0.9   19.8 284 b:3.9+1 1.1 4.6                   BJT 
 SSLB eP      21:36:03.11   0.0   22.5 237 b:2.1+1 .80 4.6                   SSLB
 MA2  eP      21:36:03.50  -0.4   22.6  12 b:2.9+1 .70 4.8                   MA2 
 YULB eP      21:36:03.76   0.2   22.5 236 b:2.4+1 1.1 4.6                   YULB
 TPUB eP      21:36:06.50  -2.4   23.0 237 b:3.5+1 .90 4.8                   TPUB
 XAN  eP      21:36:41.28  -0.7   26.6 272 b:1.0+2 .60 5.6                   XAN 
 ULN  eP      21:36:44.74  -0.9   27.0 303 b:1.1+1 .80 4.5                   ULN 
 SONA1eP      21:36:49.23  -0.2   27.4 303                                   SONA
 ENH  eP      21:36:49.33  -0.7   27.5 264 b:1.1+2 .90 5.5                   ENH 
 TIXI eP      21:37:50.46  -0.8   34.5 353 b:4.7+0 .60 4.6                   TIXI
 BILL epP     21:37:51.74   0.5X  33.3  17                                   BILL
 WMQ  eP      21:38:44.30   1.3   40.6 296 b:3.2+1 .80 5.1                   WMQ 
 ANM  eP      21:38:46.44   1.3   40.9  32 b:4.0+0 .88 4.2                   ANM 
 ZALV eP      21:38:49.50  -0.6   41.5 312                                   ZALV
 ZAA0 eP      21:38:49.82  -0.3   41.5 312 b:2.3+1 .80 5.0                   ZAA0
 PBKT eP      21:38:50.25   0.3   41.4 251 b:1.1+1 .92 4.6                   PBKT
 CHTO eP      21:38:51.33  -0.1   41.6 255 b:6.1+0 .70 4.4                   CHTO
 CM01 eP      21:38:52.99  -0.2   41.8 255                                   CM01
 CM31 eP      21:38:53.10  -0.1   41.8 255                                   CM31
 LSA  eP      21:38:58.52   1.1   42.3 275 b:6.9+0 .80 4.4                   LSA 
 RDOG eP      21:39:01.56   1.0   42.8  27 b:7.0+0 .96 4.4                   RDOG
 SHL  eP      21:39:06.82  -0.4   43.5 269 b:2.4+1 .64 5.1                   SHL 
 MK01 eP      21:39:08.62  -0.5   43.8 302                                   MK01
 MK31 eP      21:39:09.10   0.0   43.8 302                                   MK31
 MAKZ eP      21:39:10.82   0.0   44.0 302 b:2.6+1 .95 5.0                   MAKZ
 KURK eP      21:39:22.53  -0.3   45.5 308 b:3.2+1 .65 5.4                   KURK
 MDM  eP      21:39:44.78   1.2   48.2  32 b:1.2+1 1.2 4.8                   MDM 
      epP     21:39:50.08  depth =  -4.1X
 IL1  eP      21:39:47.59  -0.5   48.8  33                                   IL1 
 ILB  eP      21:39:48.07   0.0   48.8  33                                   ILB 
 HDA  epP     21:39:53.72  -4.8X  48.8  33                                   HDA 
 SCRK eP      21:39:58.48   0.2X  50.1  34 b:6.1+0 1.1 4.5                   SCRK
 FRU1 eP      21:39:58.62   0.4X  50.1 298 b:2.5+1 .95 5.2                   FRU1
 AAK  eP      21:39:59.49   0.1X  50.2 298 b:1.6+1 .85 5.1                   AAK 
 KK31 eP      21:40:18.72  -0.1X  52.8 300                                   KK31
 INK  eP      21:40:24.79   0.4X  53.6  27 b:6.0+0 .75 4.7                   INK 
 HYT  eP      21:40:26.87   2.4X  53.6  37 b:9.0+0 .94 4.8                   HYT 
 GSI  eP      21:40:29.31  -0.4X  54.3 239 b:3.8+1 .80 5.5                   GSI 
 NIL  eP      21:40:31.26   0.4X  54.5 288 b:1.2+1 .75 5.0                   NIL 
 ARU  eP      21:40:40.10  -0.4X  55.8 318 b:3.5+1 1.0 5.3                   ARU 
 KBL  eP      21:40:50.29  -0.7X  57.2 291 b:3.0+1 1.0 5.3                   KBL 
 WB2  eP      21:40:53.12  -1.8X  57.8 188                                   WB2 
      eP      21:40:54.00  -0.9X
 FITZ eP      21:40:53.43   0.3X  57.6 198 b:1.2+1 1.0 4.9                   FITZ
 WRAB eP      21:40:54.18  -0.7X  57.8 188 b:1.9+1 .95 5.1                   WRAB
 AS01 eP      21:41:19.70  -0.8X  61.6 188                                   AS01
 AS31 eP      21:41:20.17  -0.4X  61.6 188 b:1.9+0 .95 4.2                   AS31
 RES  eP      21:41:21.30  -0.4X  61.8  15 b:8.4+0 .90 4.9                   RES 
 YKB5 eP      21:41:28.84  -1.5X  63.1  30                                   YKB5
 GYA0BeP      21:41:34.00   0.1X  63.5 299 b:9.5+0 .70 5.0                   GYA0
 FIA1 eP      21:42:02.42  -0.7X  68.2 332                                   FIA1
      eP      21:42:02.72  -0.4X
 TBLG eP      21:42:17.96   0.3X  70.5 308 b:2.2+1 1.0 5.1                   TBLG
 KIV  eP      21:42:17.98   0.2X  70.5 311 b:4.8+1 .80 5.6                   KIV 
 B08A epP     21:42:18.12   3.5X  68.2  45                                   B08A
 GNI  eP      21:42:24.08   1.0X  71.3 307 b:1.8+1 1.1 5.0                   GNI 
 STKA epP     21:42:24.65   3.1X  69.3 180                                   STKA
 UOSS eP      21:42:25.07  -0.2X  71.7 288 b:1.3+1 .80 5.0                   UOSS
 KARS eP      21:42:28.69   0.8X  72.1 308 b:5.7+1 1.1 5.4                   KARS
 FFC  eP      21:42:32.74   0.1X  73.0  33 b:1.0+0 .75 3.9                   FFC 
      epP     21:42:46.44  depth =   2.7X
 FCC  eP      21:42:33.65  -0.5X  73.3  27 b:1.3+1 1.1 4.8                   FCC 
      epP     21:42:46.57  depth =   1.3X
 NC405eP      21:42:34.00  -0.4X  73.3 337                                   NC40
 NC303eP      21:42:34.45   0.0X  73.3 337                                   NC30
 NC204eP      21:42:35.25  -0.1X  73.5 338                                   NC20
 NB201eP      21:42:35.45   0.0X  73.5 337                                   NB20
 HRY  eP      21:42:35.61   0.7X  73.3  43                                   HRY 
      epP     21:42:49.10  depth =   3.3X
 NC602eP      21:42:35.90  -0.5X  73.7 337                                   NC60
 KIEV eP      21:42:36.18  -0.9X  73.8 322 b:1.8+1 .80 5.1                   KIEV
 NBO00eP      21:42:36.37  -0.1X  73.7 338                                   NBO0
 AKBB eP      21:42:36.50  -0.6X  73.8 322 b:1.8+1 .80 5.1                   AKBB
 EGMT eP      21:42:36.77   0.2X  73.6  41 b:7.2+0 .75 4.7                   EGMT
      epP     21:42:50.55  depth =   3.0X
 AK11 eP      21:42:36.82  -0.6X  73.8 322                                   AK11
 LRM  eP      21:42:36.84   4.2X  72.9  43                                   LRM 
 NAO01eP      21:42:36.85  -0.2X  73.8 337                                   NAO0
 BMO  epP     21:42:37.10   3.2X  71.3  47                                   BMO 
 DLMT eP      21:42:38.11   0.8X  73.7  45 b:5.1+0 .90 4.5                   DLMT
      epP     21:42:47.69  depth =  -0.5X
 J08A esP     21:42:38.97  -0.1X  71.5  49                                   J08A
 SUW  eP      21:42:39.58  -0.7X  74.3 327 b:3.1+1 1.0 5.2                   SUW 
 ORV  epP     21:42:40.39   3.8X  71.8  54                                   ORV 
 WVOR epP     21:42:40.77   3.3X  71.9  50                                   WVOR
 KVN  eP      21:42:41.15   0.8X  74.2  53 b:3.6+0 .90 4.3                   KVN 
      epP     21:42:48.43  depth =  -2.7X
 NV01 eP      21:42:42.10   0.3X  74.5  53                                   NV01
 PAHR esP     21:42:48.49   0.2X  73.0  53                                   PAHR
 YFT  eP      21:42:49.16   2.7X  75.3  45 b:5.0+0 .72 4.6                   YFT 
 YPP  eP      21:42:49.49   2.2X  75.4  45 b:2.5+0 .68 4.3                   YPP 
 IMW  eP      21:42:49.57   1.4X  75.6  45 b:4.7+0 .70 4.6                   IMW 
      epP     21:43:03.52  depth =   4.6X
 FXWY eP      21:42:49.99   1.2X  75.7  46 b:4.1+0 1.0 4.4                   FXWY
 H17A eP      21:42:50.02   2.5X  75.5  45 b:5.9+0 .70 4.7                   H17A
 CMB  esP     21:42:50.37   0.1X  73.3  55                                   CMB 
 MOOW eP      21:42:50.42   1.2X  75.8  45 b:2.6+0 .90 4.2                   MOOW
 TPAW eP      21:42:50.86   1.3X  75.8  46 b:3.0+0 .70 4.4                   TPAW
 YERR esP     21:42:51.77   0.4X  73.5  53                                   YERR
 HLID epP     21:42:52.37   3.9X  73.8  47                                   HLID
 R11A eP      21:42:52.50   0.7X  76.2  52 b:1.8+0 .65 4.2                   R11A
 TPNV eP      21:42:54.85   0.6X  76.6  54 b:5.2+0 1.0 4.5                   TPNV
      epP     21:43:09.65  depth =   4.5X
 OMMB epP     21:42:55.56   2.8X  74.5  54                                   OMMB
 RYN  esP     21:42:55.66   0.4X  74.2  53                                   RYN 
 PDAR eP      21:42:56.29  -0.3X  77.1  46                                   PDAR
 BW06 eP      21:42:56.44  -0.2X  77.1  46 b:2.7+0 .75 4.4                   BW06
 PD31 eP      21:42:56.67   0.1X  77.1  46                                   PD31
      ePcP    21:43:04.47  -3.0X
 ELK  esP     21:42:59.62  -0.1X  75.0  50                                   ELK 
 BUR04eP      21:43:00.17  -0.1X  77.8 322                                   BUR0
 BUR08eP      21:43:00.37   0.1X  77.8 322                                   BUR0
 OJC  eP      21:43:03.48  -0.5X  78.5 326 b:2.9+1 1.1 5.2                   OJC 
 FLWY esP     21:43:03.71   0.6X  75.6  45                                   FLWY
 HVU  epP     21:43:03.97   3.6X  75.8  48                                   HVU 
 BR131eP      21:43:04.20   0.1X  78.4 312                                   BR13
 RLMT esP     21:43:04.52   0.6X  75.7  44                                   RLMT
 REDW esP     21:43:05.01  -0.3X  75.9  46                                   REDW
 BGU  esP     21:43:06.52  -0.2X  76.2  49                                   BGU 
 ANTO eP      21:43:06.54   0.2X  78.8 312 b:1.7+1 .75 5.1                   ANTO
 DAC  esP     21:43:06.82   0.1X  76.2  55                                   DAC 
 SPUT esP     21:43:07.52   0.2X  76.3  48                                   SPUT
 DUG  ePcP    21:43:09.50   3.3X  76.8  49                                   DUG 
 MORC eP      21:43:11.19   0.0X  79.8 327 b:1.8+1 1.0 5.0                   MORC
 TCUT ePcP    21:43:12.16   4.8X  77.0  48                                   TCUT
 GSC  ePcP    21:43:12.97   4.6X  77.3  55                                   GSC 
 PSZ  eP      21:43:13.69   0.7X  80.1 325 b:2.4+1 1.1 5.1                   PSZ 
 CLL  eP      21:43:14.45  -0.5X  80.5 330 b:2.0+1 1.0 5.1                   CLL 
 RAYN eP      21:43:14.78  -0.6X  80.5 292 b:8.3+0 1.0 4.7                   RAYN
 PV10 eP      21:43:15.23   1.3X  80.2  49                                   PV10
      epP     21:43:23.59  depth =  -1.2X
 SHPR ePcP    21:43:15.38   5.5X  77.6  53                                   SHPR
 WUAZ eP      21:43:17.50   1.3X  80.6  52 b:7.7+0 .90 4.7                   WUAZ
 CCUT ePcP    21:43:18.14   6.2X  78.1  52                                   CCUT
 MSU  esP     21:43:18.76   0.6X  78.2  50                                   MSU 
 XPFO esP     21:43:19.94   0.0X  78.5  56                                   XPFO
 PFO  esP     21:43:19.94   0.0X  78.5  56                                   PFO 
 CSS  eP      21:43:21.14  -0.4X  81.7 308 b:1.0+1 .70 4.9                   CSS 
 KHC  eP      21:43:22.76   0.0X  81.9 329 b:5.2+0 .90 4.6                   KHC 
 GEA0 eP      21:43:23.17  -0.6X  82.1 328                                   GEA0
 GEC2 eP      21:43:23.65  -0.1X  82.1 328 b:5.8+0 .77 4.7                   GEC2
 W13A esP     21:43:24.37   0.3X  79.3  54                                   W13A
 O20A epP     21:43:24.55   3.5X  79.5  47                                   O20A
 MANT eP      21:43:25.01   0.6X  82.2 313 b:3.0+1 .90 5.3                   MANT
 VTS  eP      21:43:25.09   0.3X  82.3 319 b:1.3+1 .80 5.0                   VTS 
 U15A esP     21:43:25.15   0.1X  79.5  52                                   U15A
 GRFO eP      21:43:25.50   0.1X  82.5 330 b:1.5+1 .90 5.1                   GRFO
 GRA1 eP      21:43:25.52   0.1X  82.5 330 b:2.0+1 1.0 5.1                   GRA1
 Y12C esP     21:43:26.62   0.2X  79.7  55                                   Y12C
 PV09 esP     21:43:28.46   0.2X  80.1  49                                   PV09
 PV23 esP     21:43:29.26   0.5X  80.2  49                                   PV23
 PV17 esP     21:43:29.42  -0.1X  80.3  49                                   PV17
 PV14 esP     21:43:29.43   0.4X  80.2  49                                   PV14
 PV20 esP     21:43:29.78   0.5X  80.3  49                                   PV20
 PV19 esP     21:43:29.79   0.4X  80.3  49                                   PV19
 PV05 esP     21:43:29.93   0.1X  80.4  49                                   PV05
 PV03 esP     21:43:29.96   0.0X  80.4  49                                   PV03
 N23A esP     21:43:30.15   0.5X  80.3  45                                   N23A
 PV13 esP     21:43:30.33  -0.1X  80.5  49                                   PV13
 PV01 esP     21:43:31.28   0.0X  80.6  49                                   PV01
 SMCO esP     21:43:33.19   0.6X  80.9  47                                   SMCO
 ISCO esP     21:43:34.72   0.1X  81.2  46                                   ISCO
 MVCO esP     21:43:35.26   0.5X  81.3  49                                   MVCO
 LIT  eP      21:43:35.42  -0.5X  84.5 318 b:2.7+1 .82 5.4                   LIT 
 BFO  eP      21:43:36.70  -0.2X  84.7 331 b:1.7+1 .90 5.2                   BFO 
 S22A esP     21:43:38.60   0.4X  81.9  48                                   S22A
 ECH  eP      21:43:39.09  -0.5X  85.2 331 b:1.2+1 .90 5.1                   ECH 
 FUORNeP      21:43:40.48   0.2X  85.3 329 b:2.2+1 .85 5.4                   FUOR
 SDCO esP     21:43:42.42   0.2X  82.7  47                                   SDCO
 ECSD epP     21:43:43.27   2.4X  83.3  38                                   ECSD
 TUC  epP     21:43:43.84   3.8X  83.1  54                                   TUC 
 ITM  eP      21:43:46.98  -1.0X  86.9 316 b:2.7+1 .68 5.6                   ITM 
 ANMO esP     21:43:49.19   0.1X  84.0  50                                   ANMO
 BNM  esP     21:43:51.37   0.0X  84.5  51                                   BNM 
 TX31 eP      21:44:00.55  -0.4X  89.6  52                                   TX31
      eP      21:44:01.12   0.1X
      epP     21:44:09.77  depth =  -2.5X
 MNTX epP     21:44:02.75   3.4X  86.9  52                                   MNTX
 AMTX epP     21:44:02.92   3.5X  86.9  47                                   AMTX
 WMOK epP     21:44:11.00   3.1X  88.7  46                                   WMOK
 MIAR esP     21:44:25.76  -0.3X  91.7  43                                   MIAR
 SDV  ePKPpre 21:49:53.28  -2.0X 124.7  40                                   SDV 
 LPAZ ePKPdf  21:50:43.92   0.3X 146.2  58                                   LPAZ
 MNMC ePKPdf  21:50:45.99   1.3X 147.1  64                                   MNMC
 PB11 ePKPbc  21:50:47.54  -0.1X 147.5  65                                   PB11
 GO02 ePKPbc  21:50:56.37   0.4X 150.8  73                                   GO02
 LCO  ePKPbc  21:50:57.56  -0.7X 151.8  81                                   LCO 
 GO04 ePKPbc  21:50:58.65  -0.5X 152.2  83                                   GO04



 Generated 2013 JAN 23 at 21:55 UTC

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