Special Reports

Monent Tensor Solution - UC Berkeley

Mammoth Lakes M 4.1 earthquake, March 8, 2003

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This is a preliminary UCB moment tensor solution for the event located
11 km SE of Mammoth Lakes, CA; 37.5722N 118.8852W; Z=6.14km;  ML=4.2;
(USGS/UCB Joint Notification System) on March 08,2003 at 15:35:02 UTC.

Reviewed by:
Templeton
UCB Seismological Laboratory
Inversion method:   complete waveform
Stations used:      CMB KCC MHC PKD SAO
 
 Berkeley Moment Tensor Solution
 
 Best Fitting Double-Couple:
    Mo = 1.36E+22 Dyne-cm
    Mw = 4.06
    Z  = 5 km
    Plane   Strike   Rake   Dip
     NP1        2     -39    62
     NP2      113    -146    56
 Principal Axes:
    Axis    Value   Plunge   Azimuth
      T    13.596       3       59
      N     0.000      43      152
      P   -13.596      46      325
 
 
 Event Date/Time: March 08,2003 at 15:35:02 UTC
 Event ID:        nc51126361
 
 Moment Tensor: Scale = 10**21 Dyne-cm
    Component   Value
       Mxx     -0.642
       Mxy      9.059
       Mxz     -5.125
       Myy      7.736
       Myz      4.609
       Mzz     -7.094
 
                                               
                                               
                    ----###                    
              ------------#######              
           ----------------#########           
         -------------------##########         
       ---------------------###########        
      -----------------------########## T      
     -----------   ----------##########        
    #----------- P ----------##############    
    ##----------   -----------#############    
   ####-----------------------##############   
   #####----------------------##############   
   #######--------------------##############   
   #########------------------##############   
   ###########----------------##############   
    #############------------##############    
    #################--------##############    
     ######################--##########---     
      ######################-------------      
       ####################-------------       
         ##################-----------         
           ###############----------           
              ##########---------              
                    ###----       
                                                                  
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For more information on UC Berkeley focal mechanisms.
                         
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