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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     17 JUL 2007  (198)

     ot  = 06:11:41.01   +/-   0.60              TANZANIA                        
     lat =      -2.777   +/-   14.6
     lon =      36.058   +/-   21.0              MAGNITUDE 4.5 (GS)       
     dep =        10.0  (geophysicist)

     95 km (60 miles) NW of Arusha, Tanzania (pop 102,000)
     185 km (115 miles) SSW of NAIROBI, Kenya
     275 km (170 miles) S of Nakuru, Kenya
     575 km (355 miles) NW of DAR ES SALAAM, Tanzania

     nph =    9 of  14    se = 1.01    FE=573                            B   

     error ellipse = (122.7,  0.0, 32.5; 32.7,  0.0,  9.7;  0.0,  0.0,  0.0)

 mb = 4.5 (  6)  ML = 4.4 (  1)  mblg = 4.8 (  2)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 KMBO ePn     06:12:15.00  -0.5    2.0  36 d:7.1+2     5.6X L:5.2+0 .45 4.4  KMBO
      eSg     06:12:39.87  S res =  -6.3X  g:6.5+0 1.0 4.8 
 LSZ  qPn     06:15:06.71  -1.8   14.6 212 g:4.8-1 1.2 4.8                   LSZ 
      eSn     06:17:45.78  S res =  -5.3X
      eLg     06:19:16.50
 LBTB eP      06:16:59.93   1.0   24.3 204 g:8.1-3 .88 3.6X b:8.1+0 .88 4.4  LBTB
 BOSA eP      06:17:30.49   1.0   27.7 201 b:8.0+0 .73 4.6                   BOSA
 TOA0 qP      06:18:52.13  -4.4X  37.6 296                                   TOA0
 DBIC eP      06:19:32.47   0.3   41.9 283 b:3.6+0 .86 4.1                   DBIC
 AML  eP      06:21:22.29   0.5   56.2  33 b:4.0+0 .90 4.4                   AML 
 TKM2 eP      06:21:32.97   0.2   57.8  34 b:6.4+0 1.0 4.6                   TKM2
      e       06:21:36.51  depth =  11.6X
 MK31 eP      06:22:13.70  -0.5   63.9  34                                   MK31
 KURK eP      06:22:17.76  -0.1   64.5  28 b:3.3+0 .96 4.5                   KURK



 Generated 2007 JUL 19 at 01:43 UTC

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

 


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