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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     30 APR 2008  (121)

     ot  = 20:51:48.48   +/-   0.43              KYUSHU, JAPAN                   
     lat =      32.607   +/-    8.3
     lon =     131.905   +/-    7.7                                       
     dep =        10.0  (geophysicist)

     75 km (50 miles) SSE of Oita, Kyushu, Japan (pop 426,000)
     85 km (55 miles) NNE of Miyazaki, Kyushu, Japan (pop 300,000)
     705 km (435 miles) SE of SEOUL, South Korea
     800 km (495 miles) WSW of TOKYO, Japan
 
     Recorded (2 JMA) in Miyazaki and Oita; (1 JMA) in Kochi and
     Kumamoto. Recorded (1 JMA) in Ehime, Shikoku.

     nph =   21 of  37    se = 1.01    FE=235                            A   

     error ellipse = (178.3,  0.0, 10.9; 88.3,  0.0, 10.1;  0.0,  0.0,  0.0)

 mb = 4.0 (  5)  ML = 0.0 (  0)  mblg = 3.1 (  3)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 MAJO eP      20:53:21.86  -2.5    6.5  51 d:6.0+1     5.2X L:1.6-2 .45 3.3X MAJO
                                           g:1.3-2 1.0 2.8  b:7.9+0 .45 5.0X
 MJAR Pn      20:53:25.83   1.4    6.5  51                                   MJAR
      Lg      20:55:17.42
 ENH  eP      20:56:17.58   4.3X  19.3 269 g:8.5-3 1.0 3.3  b:8.5+0 1.0 3.9  ENH 
 ULN  eP      20:57:04.99  -0.2   24.2 316 g:2.7-3 .75 3.1  b:2.7+0 .75 3.9  ULN 
 SONM P       20:57:08.56   0.0   24.6 316                                   SONM
      pP      20:57:19.08  depth =  39.6X
      LR      21:07:59.44                                  
 MKAR P       20:59:22.98  -0.9   40.1 306                                   MKAR
      pP      20:59:33.47  depth =  36.4X
      LR      21:17:29.34                                  
 KURK eP      20:59:45.95   0.4   42.7 311                                   KURK
 TKM2 eP      21:00:05.73   1.9   44.9 300 b:2.1+0 .55 4.3                   TKM2
      e       21:00:14.64   6.4X
 AAK  P       21:00:10.29  -0.2   45.8 300                                   AAK 
      pP      21:00:20.34  depth =  33.7X
 BVAR P       21:00:25.59  -1.0   47.9 314                                   BVAR
      pP      21:00:36.11  depth =  36.1X
 BRVK eP      21:00:34.65   7.6X  48.0 314 b:2.5+0 .78 4.4                   BRVK
 FITZ P       21:00:48.69  -0.2   50.8 188                                   FITZ
 WRA  P       21:00:59.81  -0.5   52.3 177                                   WRA 
      pP      21:01:10.46  depth =  36.2X
 ABKAReP      21:01:17.50  -1.0   54.8 310 b:6.7-1 .80 3.7                   ABKA
      e       21:01:28.29   5.4X
 AKTK P       21:01:26.23   0.6   55.8 312                                   AKTK
      pP      21:01:36.50  depth =  33.7X
 ASAR P       21:01:26.95  -0.3   56.0 178                                   ASAR
      pP      21:01:37.45  depth =  34.8X
 STKA P       21:02:27.55   0.4   64.8 171                                   STKA
 YKA  P       21:03:09.10   0.6   71.4  27                                   YKA 
      pP      21:03:20.44  depth =  37.5X
 BRTR P       21:03:33.60  -0.5   75.7 308                                   BRTR
      pP      21:03:44.05  depth =  33.6X
 NVAR P       21:04:19.50   0.9   83.8  48                                   NVAR
 PDAR P       21:04:30.86   0.3   86.2  40                                   PDAR
 ULM  P       21:04:35.20  -0.2   87.3  28                                   ULM 
 TXAR P       21:05:30.63   1.0   98.9  47                                   TXAR



 Generated 2008 MAY 13 at 18:32 UTC

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


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