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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     29 JUL 2007  (210)

     ot  = 20:43:17.90   +/-   1.66              OFF EAST COAST OF HONSHU, JAPAN 
     lat =      34.356   +/-    9.1
     lon =     141.612   +/-    8.0              MAGNITUDE 4.5 (GS)       
     dep =        58.7   +/-    4.6   

     220 km (135 miles) NE of Hachijo-jima, Izu Islands, Japan
     225 km (140 miles) SE of TOKYO, Japan
     245 km (150 miles) SSE of Mito, Honshu, Japan
     300 km (190 miles) ESE of Shizuoka, Honshu, Japan

     nph =   26 of  26    se = 0.82    FE=229                            A   

     error ellipse = (213.0,  3.0, 15.0;304.0, 15.0, 11.3;110.0, 74.0,  6.4)

 mb = 4.5 (  7)  ML = 3.8 (  1)  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     20:44:06.71  -3.6    3.5 309 L:2.3-1 1.1 3.8                   MAJO
      eSn     20:44:50.40  S res =  -0.5 
 YSS  ePn     20:46:08.67  -5.7   12.6   3                                   YSS 
 CHTO eP      20:50:53.75  -0.5   40.9 258                                   CHTO
 MK31 eP      20:51:34.11   1.0   45.7 304                                   MK31
      epP     20:51:51.02  depth =   2.7 
 KURK eP      20:51:49.40   0.6   47.7 310 b:9.7+0 .80 4.8                   KURK
      epP     20:52:05.26  depth =   1.2 
 WRAB eP      20:52:38.49  -0.7   54.5 188                                   WRAB
 WB2  eP      20:52:38.54  -0.7   54.5 188                                   WB2 
      epP     20:52:54.90  depth =   0.1 
 ARU  eP      20:53:07.73   0.1   58.4 319                                   ARU 
      epP     20:53:24.27  depth =   0.9 
 LRM  eP      20:54:58.71  -0.1   75.9  43                                   LRM 
      epP     20:55:14.56  depth =  -0.5 
 DLMT eP      20:54:59.00  -0.7   76.1  44 b:4.4+0 .85 4.4                   DLMT
 BOZ  eP      20:55:01.81  -0.1   76.5  43                                   BOZ 
 RRI2 eP      20:55:11.36   0.7   78.0  45 b:5.6+0 1.0 4.5                   RRI2
 FLWY eP      20:55:11.53   1.4   77.9  44                                   FLWY
 DUG  eP      20:55:16.00   0.3   78.9  48                                   DUG 
 BW06 eP      20:55:17.84  -0.3   79.4  45 b:1.0+1 1.6 4.5                   BW06
 SRU  eP      20:55:26.97   0.1   81.0  48                                   SRU 
 SMCO eP      20:55:38.36   0.1   83.1  46 b:5.2+0 1.1 4.4                   SMCO
 SDCO eP      20:55:47.79   0.4   84.9  47 b:4.6+0 1.1 4.4                   SDCO
      epP     20:56:03.59  depth =  -0.3 
 ECSD eP      20:55:50.56  -1.0   85.9  38 b:3.4+0 .85 4.5                   ECSD



 Generated 2007 JUL 29 at 21:16 UTC

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

 


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