[rCMT] Mw=6.2 SAMOA ISLANDS REGION

[USGS research CMT]

AUTOMATIC solution, not reviewed by a seismologist
--------------------------------------------------
General region :  2007kwa8 SAMOA ISLANDS REGION                              
surface waves  (3.0,3.5,7,7.5 mHz)
Stations used :  CASY COR CTAO KIP MAJO PET PMG RPN TAU TUC                                                         
Origin time: 2007  347  15  51  31
Original location (lat,lon,depth) :     -15.2000   -172.500  45   
Moment tensor (x1.e26 dyncm) :
Mrr :     -0.224158 Mtt :      0.045420
Mff :      0.178738 Mrt :      0.028922
Mrf :     -0.151775 Mtf :     -0.140544
T-axis:  moment=     0.307   plunge=    15.375  azimuth=    60.235    
N-axis:  moment=    -0.031   plunge=    12.141  azimuth=   153.627    
P-axis:  moment=    -0.276   plunge=    70.219  azimuth=   280.366    
best double couple: Mo=    0.292(x1.e26 dyncm)  Mw=6.2  tau=  3.7     
nodal planes (strike/dip/slip):  340.35/ 61.45/-76.15     133.05/ 31.48/-113.75 
Centroid location :  -15.077  -171.892    29.076
Centroid time :      8.188
Variance reduction (%) :  62
 
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          0-   30-  60-  90-  120- 150- 180- 210- 240- 270- 300- 330-           
z-comp:     0    0    1    0    2    1    1    1    1    1    1    1            
r-comp:     0    0    0    0    1    0    0    0    1    1    1    0            
t-comp:     0    0    0    0    1    1    1    0    0    1    1    0            
Total number of traces used =  19  
number of runs = 7
starttime = Thu Dec 13 09:20:58 MST 2007
endtime = Thu Dec 13 09:41:40 MST 2007
inversion time = Thu Dec 13 09:41:28 MST 2007 - Thu Dec 13 09:41:39 MST 2007
Solution produced by inversion of channels with var red > 2%