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Earthquake Hazards Program
Phase Data

Explanation of Parameters


      8 JUL 2007  (189)

     ot  = 11:16:02.57   +/-   0.28              OFF EAST COAST OF HONSHU, JAPAN 
     lat =      34.592   +/-    6.3
     lon =     141.567   +/-    5.0              MAGNITUDE 4.6 (GS)       
     dep =        71.4  (depth phases)

     205 km (125 miles) SE of TOKYO, Japan
     220 km (135 miles) SSE of Mito, Honshu, Japan
     235 km (145 miles) NE of Hachijo-jima, Izu Islands, Japan
     280 km (175 miles) SSE of Iwaki, Honshu, Japan

     nph =   35 of  42    se = 0.70    FE=229                            A   

     error ellipse = (177.8,  0.0,  8.3; 87.8,  0.0,  6.6;  0.0,  0.0,  0.0)

 mb = 4.6 ( 19)  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     11:16:53.68   1.0    3.4 306 L:1.0-1 .90 3.4X g:1.5-1 1.2 3.3X MAJO
 KS15 ePn     11:18:43.35   0.4   11.4 288                                   KS15
 ZAA0 eP      11:23:59.54  -0.5   43.7 314                                   ZAA0
 MK31 eP      11:24:14.43  -0.8   45.6 304                                   MK31
 KURK eP      11:24:29.83  -0.9   47.6 310 b:1.8+1 .81 5.0                   KURK
 IMA2 eP      11:24:40.52   0.8   48.7  29                                   IMA2
 PMR  eP      11:24:51.68  -1.5   50.5  35 b:2.0+1 1.6 4.9                   PMR 
 TKM2 eP      11:24:57.48   0.6   50.9 300 b:7.4+0 .73 4.8                   TKM2
 BRVK eP      11:25:06.97  -0.3   52.4 314 b:5.3+0 .81 4.6                   BRVK
 AML  eP      11:25:09.56   0.8   52.5 300 b:7.3+0 .68 4.8                   AML 
 WRAB eP      11:25:23.84  -0.3   54.7 188 b:9.8+0 .91 4.8                   WRAB
 WB2  eP      11:25:23.95  -0.3   54.7 188                                   WB2 
 INK  eP      11:25:36.08  -0.8   56.5  26 b:9.0+1 .55 6.1X                  INK 
      epP     11:25:55.59  depth =  76.5 
 ARU  eP      11:25:48.91  -0.7   58.3 320 b:1.0+1 1.0 4.9                   ARU 
 MBWA eP      11:25:55.91  -0.4   59.2 204 b:1.6+1 1.1 5.1                   MBWA
 DLBC eP      11:26:05.37   0.6   60.5  37                                   DLBC
 RES  eP      11:26:33.23  -0.8   64.9  14 b:1.3+2 .55 6.1X                  RES 
 FORT eP      11:26:43.47   0.5   66.3 193 b:1.8+0 .70 4.1                   FORT
 KIV  eP      11:27:22.23  -0.1   72.6 312 b:1.2+1 1.0 4.8                   KIV 
 HRY  eP      11:27:39.82  -0.2   75.6  43                                   HRY 
      epP     11:27:59.66  depth =  73.8 
 LRM  eP      11:27:40.85  -0.3   75.8  44                                   LRM 
 EGMT eP      11:27:41.95  -0.2   76.0  41 b:6.2+0 .85 4.6                   EGMT
      epP     11:28:01.90  depth =  74.2 
 DLMT eP      11:27:42.15   0.1   76.0  44 b:1.6+1 1.7 4.7                   DLMT
 BOZ  eP      11:27:43.95  -0.3   76.4  44 b:3.2+0 1.1 4.1                   BOZ 
      epP     11:28:02.48  depth =  68.1 
 IMW  eP      11:27:52.16  -0.3   77.8  45 b:1.8+0 .68 4.1                   IMW 
      epP     11:28:10.31  depth =  66.3 
 TPAW eP      11:27:55.02   1.2   78.0  45 b:3.0+0 .75 4.3                   TPAW
 RLMT eP      11:27:55.31   2.0   78.0  43 b:3.3+0 .95 4.3                   RLMT
 DUG  eP      11:27:58.45   0.2   78.9  49 b:3.7+0 .85 4.3                   DUG 
      epP     11:28:17.42  depth =  69.6 
 DAU  eP      11:28:03.28   0.3   79.7  48                                   DAU 
      epP     11:28:22.74  depth =  71.6 
 PV10 eP      11:28:16.73   0.0   82.3  48                                   PV10
 PV01 eP      11:28:18.94  -0.1   82.7  48                                   PV01
 SDCO eP      11:28:30.01   0.1   84.9  47 b:4.0+0 1.2 4.3                   SDCO
 SCHQ eP      11:28:42.69  -0.2   87.6  16 b:1.4+0 .55 4.3                   SCHQ
 QSPA ePKPdf  11:34:52.47   0.1  124.3 180                                   QSPA
 LPAZ ePKPbc  11:35:40.71   0.3  147.8  63                                   LPAZ



 Generated 2007 JUL 11 at 11:32 UTC

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

 


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