AUTOMATIC solution, not reviewed by a seismologist, new beta version 12/7/10
More details on this rCMT at http://neic.cr.usgs.gov/beta/rcmt/events/110212175756.2011hgbk
usr/passwd : rcmt/rcmt
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General region :  2011hgbk TONGA                                             
surface waves  (3.0,3.5,7,7.5 mHz)
Stations used :  CASY CTAO KIP MAJO PET PMG SNZO TAU                                                                
Origin time: 2011   43  17  57  56
Original location (lat,lon,depth) :     -20.8000   -175.600  99   
Moment tensor (x1.e26 dyncm) :
Mrr :     -0.077825 Mtt :      0.118946
Mff :     -0.041120 Mrt :      0.054803
Mrf :     -0.083349 Mtf :      0.110956
T-axis:  moment=     0.176   plunge=     2.838  azimuth=   333.929    
N-axis:  moment=     0.011   plunge=    47.712  azimuth=    67.053    
P-axis:  moment=    -0.188   plunge=    42.146  azimuth=   241.357    
best double couple: Mo=    0.182(x1.e26 dyncm)  Mw=6.1  tau=  3.1     
nodal planes (strike/dip/slip):   26.44/ 59.37/-149.29     279.60/ 63.93/-34.56 
Centroid location :  -20.653  -175.090    99.900
Centroid time :     -0.414
Variance reduction (%) :  37.9
 
                   ***********              
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        *------------------------o--    *   
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      ** oooooooooooooooooooooo--o---    ** 
      *ooo                    oooooo---   * 
     **                        -o--oooo-- **
     **                 +      oo-----ooo-**
     **                       oo--------oo**
      *                      oo-----------* 
      **       P            oo-----------** 
       *                   oo------------*  
        *                 oo------------*   
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            ***   oooo -----------***       
               ****   --------****          
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          0-   30-  60-  90-  120- 150- 180- 210- 240- 270- 300- 330-           
z-comp:     0    0    0    0    0    1    1    1    1    1    1    2            
r-comp:     0    0    0    0    0    1    0    1    1    1    0    2            
t-comp:     0    0    0    0    0    1    0    0    1    1    0    1            
Total number of traces used =  18  
number of runs = 8
starttime = Sat Feb 12 11:23:26 MST 2011
depth loop = Sat Feb 12 11:48:03 MST 2011 - Sat Feb 12 11:48:36 MST 2011
Solution produced by inversion of channels with var red > 2%
Initial magnitude 6.1  : depth search was triggered. Initial depth 81 km.
DInit  CMTDep  VarRed
-------------------
020     88.813 22.49
040     96.298 19.55
060     89.735 22.43
100     99.852 23.44
200     99.803 23.42
300     150.473 19.68
400     165.616 18.39
500     210.992 15.08
600     198.911 10.89