Phase Data

Explanation of Parameters


     10 FEB 2013  ( 41)

     ot  = 12:21:41.43   +/-   1.36              NEAR EAST COAST OF HONSHU, JAPAN
     lat =      34.185   +/-    8.6
     lon =     140.128   +/-   10.6              MAGNITUDE 4.4 (GS)       
     dep =        86.2   +/-    6.5   

     123 km (76 miles) NNE of Hachijo-jima, Izu Islands, Japan (pop 8,000)
     147 km (92 miles) SSE of Yokohama, Honshu, Japan (pop 3,579,000)
     154 km (96 miles) SE of Numazu, Honshu, Japan (pop 208,000)
     170 km (106 miles) SSE of TOKYO, Japan

     nph =   63 of  63    se = 0.67    FE=228                            A   

     error ellipse = (241.0, 20.0, 18.6;335.0,  9.0, 11.2; 89.0, 67.0,  7.9)

 mb = 4.4 ( 36)  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     12:22:02.24   0.2    1.1 194                                   JHJ2
      eSn     12:22:17.48  S res =   0.0 
 MAJO ePn     12:22:24.20  -0.4    2.8 327                                   MAJO
      eSn     12:22:58.62  S res =   0.7 
 MJB9 ePn     12:22:24.36  -0.3    2.8 327                                   MJB9
      eSn     12:22:59.72  S res =   1.8 
 INU  ePn     12:22:25.67   1.5    2.8 295                                   INU 
 ERM  ePn     12:23:31.81  -5.3    8.2  16                                   ERM 
      eSn     12:24:57.54  S res = -10.3 
 JNU  ePn     12:23:35.25   3.2    7.8 265                                   JNU 
 NACB eP      12:25:56.61   0.5   19.0 243 b:1.5+1 1.0 4.2                   NACB
 SONA1eP      12:27:29.21  -0.5   28.6 309                                   SONA
 TLY  eP      12:27:55.86   0.9   31.5 315 b:2.2+1 .90 4.9                   TLY 
 ZALV eP      12:29:32.72  -0.2   43.1 315                                   ZALV
 ZAA0 eP      12:29:32.85  -0.1   43.1 315 b:4.1+0 .95 4.2                   ZAA0
 MK31 eP      12:29:46.43  -0.2   44.8 304                                   MK31
 MK01 eP      12:29:46.44  -0.1   44.8 304                                   MK01
 MKAR eP      12:29:46.53  -0.1   44.8 304 b:3.4+1 .70 5.3                   MKAR
 MAKZ eP      12:29:48.27   0.0   45.0 305 b:4.6+0 .65 4.4                   MAKZ
 KURK eP      12:30:02.76  -0.3   46.9 310 b:7.2+0 .90 4.6                   KURK
 KDAK eP      12:30:25.37  -0.7   49.9  40 b:3.0+1 1.0 5.3                   KDAK
 PPLA eP      12:30:28.05   0.5   50.1  34 b:6.9+0 1.1 4.6                   PPLA
 CAST eP      12:30:28.42   0.5   50.2  33 b:1.0+0 .92 3.9                   CAST
 SUA  eP      12:30:31.69  -0.9   50.8  35 b:9.9+0 1.1 4.8                   SUA 
 MLY  eP      12:30:33.49   0.7   50.8  31 b:2.6+0 .68 4.4                   MLY 
 AAK  eP      12:30:34.94   0.6   51.0 300 b:4.8+0 .95 4.5                   AAK 
 GHO  eP      12:30:39.07   0.1   51.6  35 b:7.0+0 .92 4.7                   GHO 
 MDM  eP      12:30:40.89   0.1   51.9  31 b:6.9+0 .84 4.7                   MDM 
 BRVK eP      12:30:40.90   0.6   51.8 314 b:2.7+0 .90 4.3                   BRVK
 SML  eP      12:30:40.93  -0.1   51.9  35 b:1.9+1 1.1 5.0                   SML 
 HDA  eP      12:30:44.10  -0.8   52.5  32 b:2.5+0 .96 4.2                   HDA 
 IL1  eP      12:30:44.47  -0.5   52.5  31                                   IL1 
 ILB  eP      12:30:44.57  -0.4   52.5  31                                   ILB 
 KLU  eP      12:30:49.51  -0.2   53.1  35 b:5.4+0 .92 4.6                   KLU 
 SCRK eP      12:30:54.25  -0.5   53.8  32 b:1.9+0 .60 4.3                   SCRK
 KKAR eP      12:30:54.91   0.6   53.7 302                                   KKAR
 KK31 eP      12:30:54.99   0.7   53.7 302                                   KK31
 WB2  eP      12:30:56.37  -1.1   54.1 187                                   WB2 
 FITZ eP      12:30:56.70   1.5   53.8 197 b:1.5+0 1.0 4.0                   FITZ
 WRAB eP      12:30:57.28  -0.1   54.1 187 b:4.1+0 .90 4.5                   WRAB
 GAR  eP      12:31:03.96  -0.2   55.0 297 b:8.4+0 .72 4.9                   GAR 
 INK  eP      12:31:20.25  -0.2   57.4  26                                   INK 
 ARU  eP      12:31:23.40  -0.2   57.8 320 b:3.7+0 .60 4.6                   ARU 
 AS01 eP      12:31:23.61  -0.4   57.8 187                                   AS01
 AS31 eP      12:31:24.05   0.0   57.8 187 b:5.0-1 .65 3.8                   AS31
 WHY  eP      12:31:29.35   0.8   58.5  35 b:6.1+0 1.1 4.6                   WHY 
 ABKAReP      12:31:31.51  -0.4   59.0 311                                   ABKA
 DZM  eP      12:31:48.39   0.5   61.3 152 b:1.0+1 .90 4.9                   DZM 
 FORT eP      12:32:17.27   1.2   65.6 191 b:1.7+1 .85 5.0                   FORT
 NLWA eP      12:32:41.24   1.1   69.4  46 b:1.1+1 1.1 4.6                   NLWA
 ORV  eP      12:33:12.61   0.0   74.9  52 b:4.0-1 .65 3.4                   ORV 
 BEKR eP      12:33:16.19   0.0   75.4  52 b:3.0+0 .98 4.1                   BEKR
 KIEV eP      12:33:18.39  -0.1   75.9 322 b:3.9+0 .60 4.5                   KIEV
 AK11 eP      12:33:18.78   0.1   76.0 322                                   AK11
 PAHR eP      12:33:20.63   0.4   76.1  51 b:2.6+0 1.1 4.0                   PAHR
 NC204eP      12:33:20.69  -0.3   76.4 338                                   NC20
 YERR eP      12:33:24.13   1.1   76.6  52 b:2.3+0 1.0 4.0                   YERR
 DLMT eP      12:33:26.18   0.6   77.1  44 b:8.0-1 .75 3.7                   DLMT
 KVN  eP      12:33:28.14   1.1   77.3  51 b:3.9+0 1.2 4.2                   KVN 
 HVU  eP      12:33:37.86   1.1   79.1  47 b:9.0-1 .62 3.8                   HVU 
 PDAR eP      12:33:44.19   0.3   80.4  44                                   PDAR
 GEA0 eP      12:34:04.95  -0.2   84.6 328                                   GEA0
 EGMT eS      12:43:05.65  -1.9   77.1  40                                   EGMT



 Generated 2013 FEB 10 at 12:44 UTC

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