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Earthquake Hazards Program
Phase Data

Explanation of Parameters


     14 JUL 2007  (195)

     ot  = 12:23:27.53   +/-   0.56              TANZANIA                        
     lat =      -2.805   +/-    9.5
     lon =      36.141   +/-   11.1              MAGNITUDE 4.5 (GS)       
     dep =        10.0  (geophysicist)

     85 km (55 miles) NW of Arusha, Tanzania (pop 102,000)
     185 km (115 miles) SSW of NAIROBI, Kenya
     280 km (175 miles) S of Nakuru, Kenya
     570 km (350 miles) NW of DAR ES SALAAM, Tanzania
 
     Felt at Nairobi, Kenya.

     nph =   12 of  21    se = 1.06    FE=573                            B   

     error ellipse = (124.6,  0.0, 16.4; 34.6,  0.0, 10.2;  0.0,  0.0,  0.0)

 mb = 4.5 ( 13)  ML = 4.8 (  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     12:24:01.68   0.0    2.0  34 d:5.8+2     5.4X L:1.4+1 .50 4.8  KMBO
      ePg     12:24:04.37  -1.6X           g:4.9+0 .65 4.9 
      eSg     12:24:29.58  S res =  -2.4X
 LSZ  ePn     12:26:52.67  -2.6X  14.7 212 g:2.4-1 1.0 4.6  b:9.6+0 .90 4.4X LSZ 
      eSn     12:29:25.34  S res = -12.8X
      eLg     12:30:58.80
 MSEY qP      12:27:52.06  -1.8   19.4  96 b:7.4+1 1.1 4.9                   MSEY
 ABPO qP      12:27:54.49   0.3   19.4 147 b:1.3+1 1.0 4.1                   ABPO
 LBTB eP      12:28:44.42  -1.1   24.3 204 b:2.2+1 1.2 4.6                   LBTB
 TSUM eP      12:28:46.17  -0.2   24.4 227 b:6.4+0 .84 4.3                   TSUM
      e       12:29:01.32   9.6X
 SUR  eP      12:30:02.18   1.2   32.8 204 b:4.9+1 1.5 5.2                   SUR 
 DBIC qP      12:31:18.20  -1.2   42.0 283 b:7.8+0 1.0 4.4                   DBIC
 AML  eP      12:33:08.98   0.8   56.2  33 b:4.3+0 .86 4.5                   AML 
 ESLA qP      12:33:09.79   3.0X  56.0 323 b:5.2+0 1.3 4.4                   ESLA
 EKS2 qP      12:33:12.42   1.7X  56.6  33 b:2.1+0 .81 4.2                   EKS2
 UCH  eP      12:33:12.68   0.7   56.7  33 b:1.7+1 1.7 4.8                   UCH 
 TKM2 eP      12:33:23.69   4.6X  57.8  33 b:5.2+0 .93 4.6                   TKM2
 MK31 eP      12:34:00.76   0.2   63.9  33                                   MK31
 CHTO eP      12:34:10.57  -0.2   65.4  68 b:7.8+0 1.1 4.8                   CHTO
 MAW  eP      12:34:23.07   1.2   67.2 169 b:4.6+0 1.0 4.6                   MAW 



 Generated 2007 JUL 18 at 06:33 UTC

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

 


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