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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     17 JUL 2007  (198)

     ot  = 11:17:01.62   +/-   0.60              TANZANIA                        
     lat =      -2.819   +/-   10.2
     lon =      35.935   +/-   15.4              MAGNITUDE 4.4 (GS)       
     dep =        10.0  (geophysicist)

     100 km (65 miles) NW of Arusha, Tanzania (pop 102,000)
     195 km (120 miles) SSW of NAIROBI, Kenya
     280 km (175 miles) S of Nakuru, Kenya
     580 km (360 miles) NW of DAR ES SALAAM, Tanzania

     nph =   11 of  14    se = 1.25    FE=573                            B   

     error ellipse = (115.9,  0.0, 22.1; 25.9,  0.0, 10.4;  0.0,  0.0,  0.0)

 mb = 4.4 (  7)  ML = 4.7 (  1)  mblg = 4.9 (  2)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 KMBO ePn     11:17:36.62  -1.0    2.1  38 d:3.8+2     5.1X L:1.1+1 .40 4.7  KMBO
      eS      11:18:00.53  S res =  -3.8X  g:1.1+1 1.0 5.1 
 LSZ  ePn     11:20:29.18   1.4   14.5 211 g:2.9-1 1.0 4.7                   LSZ 
      qSn     11:23:04.22  S res =  -5.1X
      eLg     11:24:38.95
 ABPO qP      11:21:27.91  -1.5   19.5 146 b:6.3+0 .86 3.9                   ABPO
 LBTB eP      11:22:19.14   0.4   24.2 203 b:3.4+0 .60 4.1                   LBTB
 BOSA eP      11:22:48.77  -0.6   27.6 201 b:5.0+0 .81 4.3                   BOSA
 TOA0 qP      11:24:14.26  -2.1   37.5 296                                   TOA0
 AML  eP      11:26:44.23   1.1   56.3  33 b:4.4+0 .88 4.5                   AML 
 TKM2 qP      11:26:54.64   0.5   57.9  34 b:4.2+0 .81 4.5                   TKM2
 ARU  eP      11:27:21.66   0.7   61.9  14 b:1.7+1 1.1 5.1                   ARU 
 MK31 eP      11:27:35.75   0.3   64.0  34                                   MK31
 KURK eP      11:27:39.84   0.7   64.6  28 b:6.2+0 1.0 4.7                   KURK



 Generated 2007 JUL 18 at 10:00 UTC

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

 


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