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Earthquake Hazards Program

USGS Centroid Moment Tensor Solution

 09/08/30 14:51:33.65
 SAMOA ISLANDS REGION            
 Epicenter: -15.097 -172.468
 MW 6.6

 USGS CENTROID MOMENT TENSOR
 09/08/30 14:51:57.90
 Centroid:  -14.685 -172.790
 Depth  21         No. of sta:131
 Moment Tensor;   Scale 10**18 Nm
   Mrr=-9.36       Mtt= 7.59
   Mpp= 1.78       Mrt= 3.33
   Mrp=-1.22       Mtp=-5.27
  Principal axes:
   T  Val= 11.29  Plg= 9  Azm= 30
   N       -1.29       4      299
   P      -10.00      79      186

 Best Double Couple:Mo=1.1*10**19
  NP1:Strike=125 Dip=36 Slip= -82
  NP2:       297     55       -94
                                      
               #######                
          ###############             
        ################# T #         
      ###################   ###       
    -############################     
   #--------------################    
   #------------------############    
  ###--------------------##########   
  ###-----------------------#######   
  ####-----------   ---------######   
  #####---------- P -----------####   
  ######---------   ------------###   
   ######------------------------#    
   ########-----------------------    
    ##########-------------------     
      ############-----------##       
        #####################         
          #################           
               #######                
                                      

Moment Tensor Solution

 


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