Sample Moment Tensor Solution and Explanation of Parameters

 94/06/09 00:33:16.4               |  Date and origin time (UTC)
 NORTHERN BOLIVIA                  |  Geographic region
 Epicenter: -13.834  -67.563       |  Epicenter: Latitude Longitude
 mb 6.9     MS 6.8                 |  Body- and surface-wave magnitudes
                                   |  
 MOMENT TENSOR SOLUTION            |  Depth (in kilometers) from moment tensor 
 Depth 632         No. of sta: 13  |     inversion and number of stations used
 Moment Tensor;   Scale 10**21 Nm  |  
   Mrr=-1.00       Mtt= 0.92       |  Elements of the moment tensor in r,
   Mff= 0.09       Mrt=-1.69       |     theta, phi coordinate system
   Mrf=-0.09       Mtf=-0.37       |     * "Scale"
  Principal axes:                  |  Moment tensor decomposed into its
   T  Val=  1.94  Plg=29  Azm=190  |     principal axis system.  "Val" are
   N        0.08      10       94  |     the eigenvalues, and "Plg" and "Azm"
   P       -2.02      59      346  |     are the orientations of the
                                   |     eigenvectors.  "T" and "P" are the
                                   |     tensional and compressional axes.
 Best Double Couple:Mo=2.0*10**21  |  Scalar moment
                    Mw=8.2         |  Moment magnitude
  NP1:Strike=308 Dip=18 Slip= -55  |  Nodal planes: all double couples can be
  NP2:        91     75      -101  |     represented by two orthogonal nodal
                                   |     planes; which is the actual fault plane
                                   |     must be inferred from other data and/or
               #######             |     assumptions.
          #################        |  "Beachball" is a graphical representation
        #--------------######      |     of source geometry/radiation pattern
      --------------------#####       
    ------------------------#####     
   -------------   -----------####    
   ------------- P ------------###    
  --------------   -------------###   
  -------------------------------##   
  -------------------------------##   
  #######---------------------####-   
  ################################-   
   ##############################-    
   ##############################-    
    ###########   ##############-     
      ######### T #############       
        #######   ###########         
          #################           
              #######