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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     16 JUL 2007  (197)

     ot  = 14:23:34.18   +/-   0.54              TANZANIA                        
     lat =      -2.563   +/-    8.6
     lon =      35.947   +/-   10.2              MAGNITUDE 4.7 (GS)       
     dep =        10.0  (geophysicist)

     120 km (75 miles) NW of Arusha, Tanzania (pop 102,000)
     170 km (105 miles) SW of NAIROBI, Kenya
     255 km (160 miles) S of Nakuru, Kenya
     600 km (375 miles) NW of DAR ES SALAAM, Tanzania
 
     Felt at Nairobi, Kenya.

     nph =   11 of  13    se = 0.83    FE=573                            B   

     error ellipse = (111.6,  0.0, 13.9; 21.6,  0.0, 11.0;  0.0,  0.0,  0.0)

 mb = 4.7 (  4)  ML = 0.0 (  0)  mblg = 4.2 (  1)  md = 0.0 (  0)  MS = 0.0 (  0)

 sta  phase     arrival     res   dist azm    amp  per mag     amp  per mag  sta
 KMBO eP      14:24:06.67  -0.7    1.9  42                                   KMBO
      eS      14:24:31.60  S res =  -0.3X
 LSZ  eP      14:26:59.10  -4.3X  14.8 211 b:2.3+4 2.4 7.3X                  LSZ 
 ABPO eP      14:28:04.80   0.6   19.7 147 g:6.4-2 1.0 4.2  b:4.0+1 .87 4.7  ABPO
 LBTB eP      14:28:52.34  -1.1   24.4 203 b:4.2+0 .43 4.4                   LBTB
 TSUM eP      14:28:53.06  -0.2   24.4 226                                   TSUM
 BOSA eP      14:29:23.09  -1.0   27.8 200 b:6.0+1 .84 5.4X                  BOSA
 SUR  eP      14:30:08.75  -0.1   32.9 204 b:3.7+1 .80 5.4X                  SUR 
 TOA0 eP      14:30:48.74   0.7   37.4 296                                   TOA0
 TAM  eP      14:31:00.79   0.1   38.9 312                                   TAM 
 MAW  eP      14:34:30.68   0.5   67.5 169 b:1.5+1 .95 5.2                   MAW 
 SNAA eP      14:35:06.49   1.3   73.2 192 b:8.2+0 1.1 4.7                   SNAA
 MBWA qP      14:36:01.85   0.0   83.3 111 b:2.2+2 1.2 6.2X                  MBWA



 Generated 2007 JUL 16 at 16:58 UTC

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

 


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