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Earthquake Hazards Program

Magnitude 7.1 RAT ISLANDS, ALEUTIAN ISLANDS

2003 March 17 16:36:16 UTC

Preliminary Earthquake Report

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

USGS Rapid Moment Tensor Solution

 03/03/17 16:36:17.31
 RAT ISLANDS, ALEUTIAN ISLANDS   
 Epicenter:  51.493  177.873
 MW 7.0

 USGS MOMENT TENSOR SOLUTION
 Depth  10         No. of sta: 45
 Moment Tensor;   Scale 10**19 Nm
   Mrr= 1.30       Mtt=-1.13
   Mff=-0.16       Mrt= 2.98
   Mrf= 2.29       Mtf=-0.56
  Principal axes:
   T  Val=  3.98  Plg=54  Azm=318
   N        0.03       4       54
   P       -4.01      35      147

 Best Double Couple:Mo=4.0*10**19
  NP1:Strike=258 Dip=11 Slip= 115
  NP2:        53     80        86
                                      
               -------                
          ------######-----           
        ---################--         
      --######################-       
    --#########################-#     
   --#######   ###############---#    
   -######## T #############------    
  -#########   ###########---------   
  ######################-----------   
  ###################--------------   
  #################----------------   
  ##############-------------------   
   ###########--------------------    
   ########------------   --------    
    ###---------------- P -------     
      -----------------   -----       
        ---------------------         
          -----------------           
               -------                
                                      

Moment Tensor Solution

Explanation of Parameters
Current USGS Fast Moment Tensor Solutions
USGS E-mail Notification Services
Source Parameter Search

For more information, contact Stuart Sipkin sipkin@usgs.gov


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