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Earthquake Hazards Program

USGS Centroid Moment Tensor Solution

 09/09/29 17:48:10.57
 SAMOA ISLANDS REGION            
 Epicenter: -15.418 -172.005
 MW 8.0

 USGS CENTROID MOMENT TENSOR
 09/09/29 17:48:52.59
 Centroid:  -15.466 -172.490
 Depth  10         No. of sta:134
 Moment Tensor;   Scale 10**21 Nm
   Mrr=-1.07       Mtt= 0.37
   Mpp= 0.71       Mrt=-0.34
   Mrp=-0.38       Mtp=-0.52
  Principal axes:
   T  Val=  1.09  Plg= 3  Azm= 55
   N        0.19      21      146
   P       -1.28      68      317

 Best Double Couple:Mo=1.2*10**21
  NP1:Strike=345 Dip=52 Slip= -61
  NP2:       124     46      -120
                                      
               #######                
          -------##########           
        -----------##########         
      ---------------#########        
    ------------------######## T      
   ##------------------#######   #    
   ##---------   -------##########    
  ###--------- P --------##########   
  ####--------   --------##########   
  #####-------------------#########   
  #######-----------------#########   
  ########----------------#########   
   #########--------------########    
   ############-----------########    
    ##############--------#######     
      ###################------       
        #################----         
          ##############---           
               #######                
                                      

Moment Tensor Solution

 


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