.This is a preliminary moment tensor solution for the ML= 4.2, H=7.0 km 
earthquake, 8km NE of Rohnert Park, CA (38.3932 N, 122.6328 W). A Mw of 4.3 
and depth of 6 km was obtained by using regional surface waves. Reverse mechanism.

 Principal Axes:
    Axis    Value   Plunge   Azimuth
      T     2.800      82       80
      N     0.000       7      286
      P    -2.800       3      196
 
 Best Fitting Double-Couple:
    Mo = 2.80E+22 Dyne-cm
    Plane   Strike   Rake   Dip
     NP1      113     100    49
     NP2      278      79    42

Best regards,
Hrvoje Tkalcic
Douglas Dreger
[email protected]
Berkeley Seismological Laboratory
 
 
 
 Moment Magnitude = 4.26
                                               
                                               
                    -------                    
              -------------------              
           -------------------------           
         -----------------------------         
       ---------------------------------       
      -------------####------------------      
     ------####################-----------     
    #---###########################--------    
    #-################################-----    
   #--##################################----   
   ----#################   ##############---   
   -----################ T ################-   
   -------##############   ################-   
   ---------################################   
    ----------#############################    
    -------------##########################    
     ----------------###################--     
      -----------------------------------      
       ---------------------------------       
         -----------------------------         
           ------   ----------------           
              --- P -------------              
                    -------                    
                                               
     Lower Hemisphere Equiangle Projection