Phase Data

Explanation of Parameters


     15 FEB 2013  ( 46)

     ot  = 23:48:29.45   +/-   0.94              BONIN ISLANDS, JAPAN REGION     
     lat =      28.778   +/-    3.9
     lon =     139.458   +/-   13.7              MAGNITUDE 4.3 (GS)       
     dep =       459.1   +/-    8.6   

     330 km (205 miles) NW of Chichi-shima, Bonin Islands, Japan
     479 km (298 miles) NNW of Iwo Jima, Volcano Islands, Japan
     482 km (299 miles) S of Hachijo-jima, Izu Islands, Japan
     766 km (476 miles) S of TOKYO, Japan

     nph =   55 of  55    se = 0.46    FE=212                            A   

     error ellipse = (103.0,  5.0, 21.6;349.0, 76.0, 13.2;194.0, 12.0,  1.7)

 mb = 4.3 ( 33)  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
 INU  eP      23:50:14.96   1.8    6.9 343                                   INU 
 MAJO eP      23:50:22.95  -0.3    7.8 353                                   MAJO
 MJB9 eP      23:50:23.29   0.1    7.8 353                                   MJB9
      eS      23:51:56.10  S res =  -0.4 
 JNU  eP      23:50:33.21   2.2    8.6 303                                   JNU 
 KS01 eP      23:51:18.58  -0.3   13.0 315                                   KS01
 KS15 eP      23:51:19.47   0.2   13.0 315                                   KS15
 USA0BeP      23:51:56.04  -0.1   16.5 341 b:2.0+1 .75 4.8                   USA0
 YULB eP      23:52:03.42   0.1   17.2 256 b:8.8+0 .90 4.3                   YULB
 MDJ  eP      23:52:07.82  -0.3   17.6 336 b:1.6+1 1.1 4.5                   MDJ 
 BJT  eP      23:52:48.77  -1.2   22.2 307 b:8.6+0 .80 4.3                   BJT 
 HIA  eP      23:53:19.11   0.2   25.4 329 b:8.6+0 .90 4.2                   HIA 
 ENH  eP      23:53:24.97   0.0   26.1 281 b:2.8+1 .70 4.8                   ENH 
 XAN  eP      23:53:29.14   0.2   26.5 289 b:1.1+1 .55 4.5                   XAN 
 ULN  eP      23:54:12.39   0.6   31.4 316 b:3.5+0 .80 3.8                   ULN 
 MA2  eP      23:54:13.92  -0.1   31.8  11 b:1.0+1 .90 4.3                   MA2 
 SONA1eP      23:54:14.76  -0.3   31.8 316                                   SONA
 KMI  eP      23:54:23.99  -0.2   32.8 272 b:8.8+0 .85 4.2                   KMI 
 PBKT eP      23:55:02.46   0.5   37.4 260 b:7.8+0 .70 4.3                   PBKT
 CHTO eP      23:55:09.36   0.5   38.2 264 b:1.2+1 .80 4.4                   CHTO
 CM01 eP      23:55:09.84  -0.2   38.4 264                                   CM01
 MTN  eP      23:55:40.14  -0.3   42.1 192 b:2.1+1 .65 4.7                   MTN 
 SHL  eP      23:55:40.56  -0.7   42.3 277 b:1.4+1 1.0 4.3                   SHL 
 BILL eP      23:55:42.14  -0.1   42.5  15 b:1.0+1 .90 4.3                   BILL
 KULM eP      23:55:51.28  -0.1   43.5 245 b:1.8+1 .80 4.6                   KULM
 PSI  eP      23:56:14.76   0.5   46.5 244 b:1.0+1 .90 4.3                   PSI 
 MKAR eP      23:56:21.77  -0.2   47.5 309 b:1.7+1 .65 4.6                   MKAR
 MK01 eP      23:56:21.84   0.0   47.5 309                                   MK01
      ePcP    23:57:42.52  -0.7 
 MK31 eP      23:56:21.97   0.0   47.5 309                                   MK31
 MAKZ eP      23:56:23.69   0.1   47.8 309 b:2.7+0 .55 3.9                   MAKZ
 GSI  eP      23:56:28.76   0.2   48.4 243 b:3.4+1 .90 4.8                   GSI 
 WRAB eP      23:56:29.44  -1.2   48.7 186 b:6.8+0 .55 4.3                   WRAB
 FITZ eP      23:56:29.65   0.5   48.5 198 b:6.3+0 .65 4.2                   FITZ
 WB2  eP      23:56:29.87  -0.8   48.7 186                                   WB2 
      ePcP    23:57:47.92   0.3 
 KURK eP      23:56:40.38  -0.4   50.1 314 b:4.5+0 .50 4.1                   KURK
 AS01 eP      23:56:57.94  -0.1   52.4 186                                   AS01
 AS31 eP      23:56:58.37   0.3   52.4 186 b:2.0+0 .50 3.7                   AS31
 IM3  eP      23:57:13.12  -0.3   54.6  27                                   IM3 
      ePcP    23:58:10.28   0.8 
 ARSB eP      23:57:14.35   0.5   54.6 302 b:4.2+0 .90 3.8                   ARSB
 NIL  eP      23:57:23.51   0.3   56.0 293 b:8.0+0 .75 4.1                   NIL 
 KKAR eP      23:57:24.54   0.2   56.1 305                                   KKAR
 KK31 eP      23:57:24.82   0.5   56.1 305                                   KK31
 GAR  eP      23:57:30.82  -0.1   57.1 300 b:1.5+1 .82 4.4                   GAR 
 CHGR eP      23:57:36.95  -0.5   58.0 300 b:3.3+1 .68 4.9                   CHGR
 KBL  eP      23:57:45.32   0.2   59.1 295 b:5.0+0 .80 4.0                   KBL 
 ARU  eP      23:58:00.16  -0.8   61.6 322 b:5.8+0 .90 4.1                   ARU 
 ABKAReP      23:58:04.65  -0.3   62.2 313                                   ABKA
 PINE eP      23:59:36.21   1.7   77.0  47 b:5.2+0 .90 4.1                   PINE
 NV01 eP      23:59:57.24  -0.3   81.4  51                                   NV01
 TPNV eP      00:00:09.17   0.7   83.5  51 b:2.2+0 .70 4.0                   TPNV
 PDAR eP      00:00:14.54   0.2   84.7  44                                   PDAR
 LPAZ ePKPbc  00:07:33.22   0.6  151.7  69                                   LPAZ



 Generated 2013 FEB 16 at 04:50 UTC

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