[rCMT] Mw=6.8 ANDREANOF ISLANDS, ALEUTIAN IS.

USGS research CMT researchcmt at geohazards.cr.usgs.gov
Thu Aug 2 03:51:49 GMT 2007


AUTOMATIC solution, not reviewed by a seismologist
--------------------------------------------------
General region :  2007fnag ANDREANOF ISLANDS, ALEUTI                         
surface waves  (3.0,3.5,7,7.5 mHz)
Stations used :  COR INCN KIP MAJO TIXI TLY YAK YSS                                                                 
Origin time: 2007  214   3  21  46
Original location (lat,lon,depth) :      51.4000   -179.900  48   
Moment tensor (x1.e26 dyncm) :
Mrr :      1.303527 Mtt :     -1.171402
Mff :     -0.132125 Mrt :      1.084442
Mrf :      0.472216 Mtf :     -0.310872
T-axis:  moment=     1.772   plunge=    68.331  azimuth=   331.237    
N-axis:  moment=    -0.057   plunge=     3.794  azimuth=    70.845    
P-axis:  moment=    -1.714   plunge=    21.301  azimuth=   162.326    
best double couple: Mo=    1.743(x1.e26 dyncm)  Mw=6.8  tau=  6.7     
nodal planes (strike/dip/slip):   69.19/ 66.40/ 85.86     259.44/ 23.94/ 99.39  
Centroid location :   50.584  -179.773    39.251
Centroid time :      6.407
Variance reduction (%) :  63
 
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          0-   30-  60-  90-  120- 150- 180- 210- 240- 270- 300- 330-           
z-comp:     0    1    0    1    0    0    1    1    1    1    0    0            
r-comp:     0    1    0    0    0    0    0    2    2    1    0    0            
t-comp:     0    1    0    0    0    0    1    2    2    1    0    0            
Total number of traces used =  19  
number of runs = 7
starttime = Wed Aug 1 21:35:26 MDT 2007
endtime = Wed Aug 1 21:51:47 MDT 2007
inversion time = Wed Aug 1 21:51:42 MDT 2007 - Wed Aug 1 21:51:46 MDT 2007
Solution produced by inversion of channels with var red > 2%



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