This is a preliminary UCB moment tensor solution for the event 10
km WSW of the Geysers, CA (38.768N 122.913W; Z=6.7; ML=4.3) at
14:19:52 (UTC) on January 11, 2000.  A Mw4.6 and depth of 5 km
were obtained from long-period waves recorded by ORV, BKS and
JRSC.
 
 Best Fitting Double-Couple:
    Mo = 9.57E+22 Dyne-cm
    Mw = 4.62
    Z  = 5 km
    Plane   Strike   Rake   Dip
     NP1      264     -28    66
     NP2        6    -153    65
 Principal Axes:
    Axis    Value   Plunge   Azimuth
      T     9.570       0      315
      N     0.000      54       46
      P    -9.570      36      225
Best regards,
Douglas Dreger
UCB Seismological Laboratory
 
                                               
 
 Berkeley Moment Tensor Solution
 
 Event Date/Time: prel
 
 Moment Tensor: Scale = 10**22 Dyne-cm
    Component   Value
       Mxx      1.643
       Mxy     -7.905
       Mxz      3.292
       Myy      1.685
       Myz      3.154
       Mzz     -3.328
 
                                               
                    ######-                    
              #############------              
           ################---------           
        T ##################----------         
          ###################-----------       
      #######################------------      
     ########################-------------     
    #########################--------------    
    ###################------####----------    
   ###########---------------############---   
   ######--------------------###############   
   ###-----------------------###############   
   --------------------------###############   
   --------------------------###############   
    ------------------------###############    
    ---------   ------------###############    
     -------- P -----------###############     
      -------   -----------##############      
       -------------------##############       
         ----------------#############         
           -------------############           
              ---------##########              
                    --#####                    
                                               
     Lower Hemisphere Equiangle Projection