Phase Data

Explanation of Parameters


     21 APR 2013  (111)

     ot  = 10:27:36.84   +/-   1.56              EASTERN HONSHU, JAPAN           
     lat =      37.460   +/-    9.0
     lon =     139.966   +/-    8.9              MAGNITUDE 4.5 (GS)       
     dep =        43.7   +/-    5.7   

     37 km (23 miles) W of Koriyama, Honshu, Japan (pop 338,000)
     55 km (34 miles) SW of Fukushima, Honshu, Japan (pop 290,000)
     93 km (58 miles) WNW of Iwaki, Honshu, Japan (pop 354,000)
     198 km (123 miles) N of TOKYO, Japan

     nph =  172 of 172    se = 0.77    FE=227                            A   

     error ellipse = (137.0,  3.0, 15.1;227.0,  0.0, 12.0;320.0, 86.0,  8.6)

 mb = 4.5 (138)  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     10:28:02.46  -1.3    1.7 238                                   MAJO
      eSn     10:28:25.78  S res =   1.7 
 MJB9 ePn     10:28:02.57  -1.2    1.7 238                                   MJB9
 INU  ePn     10:28:23.41  -0.8    3.2 229                                   INU 
 JHJ2 ePn     10:28:38.43  -1.8    4.3 182                                   JHJ2
 ERM  ePn     10:28:51.22  -0.4    5.2  27                                   ERM 
 USA0BePn     10:29:44.73   0.0    9.1 321                                   USA0
 JNU  ePn     10:29:45.87   7.1    8.6 243                                   JNU 
 KS01 ePn     10:29:53.04   0.7    9.6 274                                   KS01
 KS15 ePn     10:29:53.90   1.2    9.6 274                                   KS15
 PETK eP      10:32:04.21  -0.5   19.9  33                                   PETK
 TIXI eP      10:34:20.61  -1.6   34.7 354 b:3.4+0 .80 4.3                   TIXI
 ZAA0 eP      10:35:12.13  -1.3   40.8 312 b:2.6+0 .60 4.2                   ZAA0
 ZALV eP      10:35:12.32  -1.2   40.8 312                                   ZALV
 FAKI eP      10:35:13.44  -0.7   40.8 192 b:1.7+1 .70 4.9                   FAKI
 MK01 eP      10:35:30.36  -0.7   42.9 302                                   MK01
 MK31 eP      10:35:30.51  -0.6   42.9 302 b:2.0+0 .75 3.9                   MK31
 MAKZ eP      10:35:31.79  -1.0   43.1 302 b:2.8+0 .65 4.1                   MAKZ
 KURK eP      10:35:44.25  -1.6   44.8 308 b:1.2+1 .65 4.9                   KURK
 KSM  eP      10:35:47.47  -0.9   45.0 224 b:1.1+1 1.1 4.6                   KSM 
 SVW2 eP      10:35:55.12   0.6   45.9  38 b:8.9+0 .96 4.7                   SVW2
 KAPI eP      10:35:56.37  -1.7   46.3 209 b:1.2+1 .90 4.8                   KAPI
 OHAK eP      10:36:04.62  -0.5   47.2  43 b:2.6+1 1.1 5.1                   OHAK
 PPLA eP      10:36:05.57  -1.7   47.5  35 b:5.7+0 .92 4.6                   PPLA
 RSO  eP      10:36:05.66  -0.2   47.3  38                                   RSO 
 KDAK eP      10:36:07.23  -0.4   47.6  42 b:2.0+1 .65 5.3                   KDAK
 CAST eP      10:36:08.25   0.8   47.5  34 b:3.7+0 .92 4.4                   CAST
 BPAW eP      10:36:11.63   0.5   48.0  33 b:2.1+0 .80 4.2                   BPAW
 BRLK eP      10:36:12.36  -0.7   48.3  39 b:1.3+1 .96 4.9                   BRLK
 MLY  eP      10:36:12.51   0.6   48.1  32 b:4.5+0 .96 4.5                   MLY 
 TRF  eP      10:36:13.77  -0.1   48.3  34                                   TRF 
 TOLK eP      10:36:15.23  -0.6   48.6  27 b:2.5+0 1.0 4.2                   TOLK
 COLD eP      10:36:15.30   1.6   48.3  29 b:3.1+0 1.2 4.2                   COLD
 SEW  eP      10:36:18.00  -0.4   49.0  39 b:7.6+0 .76 4.8                   SEW 
 MCK  eP      10:36:18.21   0.0   48.9  34 b:3.3+0 .84 4.4                   MCK 
 PMR  eP      10:36:18.22  -0.3   49.0  37 b:8.3+0 .88 4.8                   PMR 
 RND  eP      10:36:18.53  -0.1   49.0  34                                   RND 
 COLA eP      10:36:19.46  -1.8   49.3  32 b:4.9+0 1.0 4.5                   COLA
 GHO  eP      10:36:19.50   0.2   49.1  37 b:1.3+1 .88 5.0                   GHO 
 WRH  eP      10:36:20.63  -0.1   49.3  33 b:1.8+0 .84 4.1                   WRH 
 MDM  eP      10:36:20.71   0.6   49.2  32 b:6.9+0 .96 4.7                   MDM 
 KNK  eP      10:36:21.09  -0.1   49.3  37 b:6.0+0 .76 4.7                   KNK 
 AAK  eP      10:36:21.24  -0.1   49.3 298 b:3.3+0 .90 4.4                   AAK 
 SML  eP      10:36:21.40   0.0   49.3  36 b:1.1+1 .84 4.9                   SML 
 CCB  eP      10:36:22.81   1.3   49.4  33 b:1.0+0 .68 4.0                   CCB 
 IL1  eP      10:36:24.08  -0.4   49.8  33                                   IL1 
 HDA  eP      10:36:24.11  -0.4   49.8  33 b:7.6+0 1.1 4.6                   HDA 
 ILB  eP      10:36:24.45  -0.1   49.8  33 b:3.0+0 .80 4.4                   ILB 
 DHY  eP      10:36:24.51   0.5   49.7  35 b:3.5+0 .80 4.4                   DHY 
 BRVK eP      10:36:24.76   2.1   49.5 312 b:3.4+0 .90 4.4                   BRVK
 SCM  eP      10:36:24.91  -0.1   49.8  36 b:6.2+0 .72 4.7                   SCM 
 FYU  eP      10:36:30.14   1.4   50.3  30 b:2.5+0 .76 4.3                   FYU 
 KLU  eP      10:36:30.48   0.1   50.5  37 b:5.3+0 .80 4.6                   KLU 
 MTN  eP      10:36:30.65  -1.6   50.7 191 b:1.5+1 .65 5.2                   MTN 
 RIDG eP      10:36:31.51  -0.5   50.7  34 b:2.7+0 .76 4.3                   RIDG
 DIV  eP      10:36:32.32   1.0   50.6  37 b:1.0+1 .84 4.9                   DIV 
 EYAK eP      10:36:32.52   0.7   50.7  38 b:9.2+0 .88 4.8                   EYAK
 HARP eP      10:36:33.12   1.0   50.8  35 b:1.1+1 .98 4.8                   HARP
 SCRK eP      10:36:34.36  -0.3   51.1  33 b:3.0+0 .80 4.3                   SCRK
 DOT  eP      10:36:34.81   0.2   51.1  34 b:2.3+0 1.0 4.1                   DOT 
 COEN eP      10:36:35.02  -1.1   51.2 176 b:6.0+0 .60 4.8                   COEN
 HMT  eP      10:36:38.41   0.7   51.5  38 b:9.0+0 1.1 4.7                   HMT 
 KK31 eP      10:36:40.00  -1.1   51.9 300 b:4.4+0 .95 4.4                   KK31
 KKAR eP      10:36:41.31   0.2   51.9 300 b:4.4+0 .95 4.4                   KKAR
 EGAK eP      10:36:42.25  -0.5   52.2  32 b:1.1+0 .85 3.9                   EGAK
 BALM eP      10:36:44.11   0.4   52.3  37 b:5.0+0 .72 4.6                   BALM
 DAWY eP      10:36:49.32  -0.1   53.1  33 b:1.4+0 1.1 3.9                   DAWY
 GSI  eP      10:36:49.44  -0.3   53.0 238 b:2.1+1 .80 5.2                   GSI 
 EPYK eP      10:36:54.88   0.7   53.7  30 b:1.4+1 1.0 4.9                   EPYK
 INK  eP      10:36:59.96   0.1   54.5  27 b:4.7+0 .95 4.5                   INK 
 HYT  eP      10:37:02.67   1.7   54.6  37 b:7.4+0 .84 4.8                   HYT 
 WHY  eP      10:37:11.08   0.8   55.9  36 b:3.5+0 .75 4.5                   WHY 
 SKAG eP      10:37:12.18   1.1   56.1  38 b:4.1+0 .96 4.4                   SKAG
 KHLH eP      10:37:15.89  -1.9   56.9  88 b:3.3+1 .96 5.3                   KHLH
 ABKAReP      10:37:16.18  -0.2   56.8 310 b:3.3+0 .65 4.5                   ABKA
 FITZ eP      10:37:16.35  -0.9   56.9 196 b:3.7+0 .85 4.4                   FITZ
 WB2  eP      10:37:17.53  -3.0   57.3 186                                   WB2 
      eP      10:37:18.48  -2.0 
 JIS  eP      10:37:18.15   1.2   56.9  39 b:7.3+0 .76 4.8                   JIS 
 WRAB eP      10:37:18.26  -2.1   57.3 186 b:7.6+0 .75 4.8                   WRAB
 AS01 eP      10:37:44.58  -1.6   61.1 186                                   AS01
 AS31 eP      10:37:45.33  -0.9   61.1 186 b:1.2+0 .80 4.1                   AS31
 RES  eP      10:37:54.28  -0.8   62.5  14 b:5.3+0 1.0 4.6                   RES 
 EIDS eP      10:38:01.46  -0.1   63.4 169 b:5.2+0 1.0 4.6                   EIDS
 YKW3 eP      10:38:04.90  -0.3   64.0  30 b:2.1+0 .70 4.3                   YKW3
 YKB5 eP      10:38:05.33  -0.2   64.0  30                                   YKB5
 FIA1 eP      10:38:29.69  -0.7   67.9 332                                   FIA1
      eP      10:38:29.78  -0.6 
 ARMA eP      10:38:34.24   0.2   68.4 169 b:9.5+0 1.0 4.8                   ARMA
 FORT eP      10:38:35.75  -0.5   68.8 191 b:3.0+1 .75 5.4                   FORT
 LON  eP      10:38:36.36  -0.2   68.8  47 b:2.1+0 .55 4.3                   LON 
 LTY  eP      10:38:38.97   0.1   69.2  46 b:2.0+0 .60 4.3                   LTY 
 COR  eP      10:38:39.50   1.4   69.1  49 b:2.2+1 1.1 5.0                   COR 
 B08A eP      10:38:39.95   0.2   69.4  44 b:3.5+0 .95 4.3                   B08A
 H04A eP      10:38:42.94   0.9   69.7  49 b:6.9+0 .95 4.6                   H04A
 C09A eP      10:38:45.71   0.4   70.3  44 b:6.8+0 1.1 4.5                   C09A
 NEW  eP      10:38:48.28   0.7   70.6  44 b:4.9+0 .80 4.5                   NEW 
 PINE eP      10:38:50.41   0.6   70.9  49 b:1.1+1 .85 4.9                   PINE
 K05A eP      10:38:54.56   1.0   71.6  50 b:1.2+1 1.1 4.8                   K05A
 WALA eP      10:38:55.65   0.3   71.9  42 b:5.2+0 .75 4.6                   WALA
 BMO  eP      10:38:58.72  -0.2   72.5  47 b:3.0+0 .85 4.3                   BMO 
 J08A eP      10:39:00.72   0.7   72.7  48 b:4.4+0 1.0 4.3                   J08A
 AKBB eP      10:39:02.58  -0.7   73.3 322 b:4.5+0 .75 4.5                   AKBB
 KIEV eP      10:39:02.64  -0.6   73.3 322 b:4.3+0 .70 4.5                   KIEV
 AK11 eP      10:39:02.92  -0.6   73.3 322                                   AK11
 BEKR eP      10:39:05.26   0.0   73.5  52 b:4.1+0 .96 4.3                   BEKR
 FCC  eP      10:39:07.69  -0.5   74.1  26 b:4.2+0 .80 4.4                   FCC 
 HRY  eP      10:39:10.95   0.5   74.4  43                                   HRY 
 PNTR eP      10:39:11.29   0.5   74.4  53 b:3.7+0 .96 4.3                   PNTR
 CMB  eP      10:39:11.65   0.5   74.6  54 b:2.3+0 .80 4.2                   CMB 
 YERR eP      10:39:12.68   0.3   74.7  52 b:6.9+0 1.1 4.5                   YERR
 HLID eP      10:39:13.19  -0.2   74.9  46 b:3.5+0 1.0 4.2                   HLID
 DLMT eP      10:39:13.31   0.4   74.9  44 b:5.3+0 .85 4.5                   DLMT
 BOZ  eP      10:39:15.54   0.6   75.2  43 b:4.8+0 .90 4.4                   BOZ 
 RYN  eP      10:39:16.45   0.3   75.4  52 b:2.1+0 .82 4.1                   RYN 
 KVN  eP      10:39:16.84   0.5   75.4  52 b:6.1+0 .98 4.5                   KVN 
 NV01 eP      10:39:18.19   0.5   75.7  52                                   NV01
 YHB  eP      10:39:19.94   0.3   76.0  44 b:4.3+0 .78 4.5                   YHB 
 GCMT eP      10:39:21.03   0.5   76.2  42                                   GCMT
 YHH  eP      10:39:21.30   0.6   76.2  44 b:1.8+0 .94 4.0                   YHH 
 H17A eP      10:39:24.37   1.5   76.6  44 b:7.3+0 .95 4.7                   H17A
 IMW  eP      10:39:24.45   0.9   76.7  45 b:4.2+0 .90 4.4                   IMW 
 RLMT eP      10:39:24.90   0.7   76.8  43 b:2.8+0 .80 4.3                   RLMT
 TPAW eP      10:39:25.99   1.0   76.9  45 b:2.6+0 .75 4.3                   TPAW
 HVU  eP      10:39:26.02   0.9   77.0  47 b:2.7+0 .90 4.3                   HVU 
 MOOW eP      10:39:26.20   1.5   76.9  45 b:1.0+0 1.0 3.8                   MOOW
 REDW eP      10:39:26.68   1.0   77.1  45 b:2.9+0 1.0 4.2                   REDW
 R11A eP      10:39:27.61   0.0   77.4  51 b:5.4+0 1.1 4.5                   R11A
 DUG  eP      10:39:31.07   0.6   77.9  48 b:3.8+0 1.0 4.4                   DUG 
 PD31 eP      10:39:31.43  -0.5   78.2  45 b:2.3+0 .90 4.2                   PD31
 BW06 eP      10:39:31.43  -0.5   78.2  45 b:2.5+0 .90 4.2                   BW06
 PDAR eP      10:39:31.57  -0.4   78.2  45                                   PDAR
 NLU  eP      10:39:33.82  -0.1   78.5  48 b:2.2+0 .96 4.1                   NLU 
 MPU  eP      10:39:34.91  -0.2   78.8  48 b:3.3+0 .98 4.3                   MPU 
 SHPR eP      10:39:35.31  -0.1   78.8  52 b:3.2+0 .90 4.3                   SHPR
 ULM  eP      10:39:38.74  -1.4   79.8  33 b:3.0+0 .95 4.2                   ULM 
 CCUT eP      10:39:39.01   1.0   79.3  51 b:1.7+0 .80 4.1                   CCUT
 MSU  eP      10:39:39.70   1.1   79.4  49                                   MSU 
 P17A eP      10:39:39.70  -0.1   79.6  48 b:4.7+0 .86 4.5                   P17A
 LCMT eP      10:39:40.40   0.3   79.7  51 b:3.8+0 1.0 4.3                   LCMT
 MTPU eP      10:39:41.25   0.9   79.7  50 b:3.7+0 .88 4.3                   MTPU
 SRU  eP      10:39:41.40  -0.4   80.0  48 b:4.4+0 .80 4.5                   SRU 
 U15A eP      10:39:45.96   0.5   80.7  51 b:3.1+0 .85 4.3                   U15A
 PV21 eP      10:39:48.41  -0.3   81.3  48 b:7.1+0 .90 4.6                   PV21
 PV09 eP      10:39:48.70   0.2   81.2  48                                   PV09
 PV23 eP      10:39:49.17   0.1   81.3  48 b:7.4+0 1.0 4.6                   PV23
 PV14 eP      10:39:49.27   0.0   81.4  48 b:7.2+0 1.0 4.6                   PV14
 PV20 eP      10:39:49.55   0.1   81.4  48 b:6.6+0 .84 4.7                   PV20
 PV19 eP      10:39:49.91   0.4   81.4  48 b:8.0+0 .76 4.8                   PV19
 PV16 eP      10:39:50.07   0.3   81.5  48 b:5.0+0 .90 4.5                   PV16
 PV10 eP      10:39:50.36   0.9   81.4  48 b:9.9+0 .78 4.9                   PV10
 PV17 eP      10:39:50.47   0.7   81.5  48 b:8.4+0 .96 4.7                   PV17
 GEA0 eP      10:39:50.58  -0.2   81.7 328                                   GEA0
 PV05 eP      10:39:50.62   0.4   81.5  48 b:8.2+0 .76 4.8                   PV05
 PV13 eP      10:39:50.99   0.4   81.6  48 b:4.7+0 .82 4.5                   PV13
 Y14A eP      10:39:51.41   0.1   81.8  53 b:2.7+0 .90 4.3                   Y14A
 WUAZ eP      10:39:52.38   0.9   81.8  51 b:4.0+0 1.0 4.4                   WUAZ
 SMCO eP      10:39:53.00   0.1   82.0  46 b:1.4+0 .85 4.0                   SMCO
 BKZ  eP      10:39:59.39   0.5   83.3 152 b:2.1+1 1.2 5.1                   BKZ 
 ECSD eP      10:40:03.68  -0.3   84.3  37 b:3.4+0 .80 4.5                   ECSD
 T25A eP      10:40:07.23  -0.2   84.9  46 b:4.4+0 .85 4.6                   T25A
 TX31 eP      10:40:35.13  -0.4   90.8  51                                   TX31
      eP      10:40:35.22  -0.4 
 QSPA ePKPdf  10:46:34.94  -0.5  127.2 180                                   QSPA
 LPAZ ePKPbc  10:47:16.76  -0.4  147.4  57                                   LPAZ
 RCBR ePKPbc  10:47:18.14  -0.7  148.3 352                                   RCBR
 PB11 ePKPbc  10:47:19.81  -0.2  148.8  63                                   PB11
 GO01 ePKPbc  10:47:21.38   0.3  149.0  63                                   GO01
 GO02 ePKPbc  10:47:28.07   0.1  152.1  72                                   GO02
 GO09 ePKPbc  10:47:29.77   0.2  153.4 131                                   GO09
 LCO  ePKPbc  10:47:29.98  -0.1  153.1  80                                   LCO 
 GO04 ePKPbc  10:47:30.65  -0.3  153.5  82                                   GO04



 Generated 2013 APR 21 at 10:58 UTC

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