Special Reports

Monent Tensor Solution - TriNet

Lavic Lake (Hector Mine) M4.2 earthquake, April 5, 2002

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Real-time focal mechanism inversion using TriNet waveform data
        Note: currently being developed and tested
              send your comments and suggestions to Lupei Zhu

Fri Apr  5 08:05:24 2002: receive earthquake info from jet

        EVENT-ID ML    origin time     lati.    longi.
        9775765 4.2 2002 4 5 8 2 55 34.5200 -116.2935

        Delayed 149 sec
Fri Apr  5 08:06:15 2002: Finish retrieving 64 stations
Fri Apr  5 08:06:57 2002: Finish inversion

Focal Depth and mechanism:

 Depth fixed at 07 km
 Moment Tensor: Scale = 10**21 Dyne-cm
    Component   Value
       Mxx      6.207
       Mxy      9.207
       Mxz     -5.932
       Myy      3.736
       Myz      3.646
       Mzz     -9.943
 
 Principle Axes:
    Axis    Value   Plunge   Azimuth
      T    14.454       5      219
      N     0.000      33      126
      P   -14.454      57      317
 
 Best Fitting Double-Couple:
    Mo = 1.45E+22 Dyne-cm
    Plane   Strike   Rake   Dip
     NP1      102    -130    58
     NP2      340     -44    49
 
 Moment Magnitude = 4.04
                                               
                                               
                    #######                    
              -----##############              
           -----------##############           
         ----------------#############         
       --------------------#############       
      ----------------------#############      
     ------------------------#############     
    -------------   ----------#############    
    ------------- P -----------############    
   #-------------   ------------############   
   ##----------------------------###########   
   ####--------------------------###########   
   #######------------------------##########   
   ##########---------------------##########   
    #############-----------------########-    
    ###################-----------##-------    
     #############################--------     
      ############################-------      
       ###   ####################-------       
         # T ####################-----         
             ###################----           
              #################--              
                    #######                    
                                               
     Lower Hemisphere Equiangle Projection

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