[rCMT] Mw=7.1 ANDREANOF ISLANDS, ALEUTIAN IS.

USGS research CMT researchcmt at geohazards.cr.usgs.gov
Wed Dec 19 09:59:15 GMT 2007


AUTOMATIC solution, not reviewed by a seismologist
--------------------------------------------------
General region :  2007lcaq ANDREANOF ISLANDS, ALEUTI                         
surface waves  (3.0,3.5,7,7.5 mHz)
Stations used :  COR FFC KIP MAJO TIXI TLY YAK YSS                                                                  
Origin time: 2007  353   9  30  30
Original location (lat,lon,depth) :      51.5000   -179.500  56   
Moment tensor (x1.e26 dyncm) :
Mrr :      5.291343 Mtt :     -4.751468
Mff :     -0.539875 Mrt :      4.079671
Mrf :      1.161821 Mtf :     -0.974200
T-axis:  moment=     6.822   plunge=    70.150  azimuth=   341.855    
N-axis:  moment=    -0.332   plunge=     1.554  azimuth=    76.166    
P-axis:  moment=    -6.489   plunge=    19.784  azimuth=   166.725    
best double couple: Mo=    6.655(x1.e26 dyncm)  Mw=7.1  tau= 10.4     
nodal planes (strike/dip/slip):   75.43/ 64.80/ 88.28     259.46/ 25.25/ 93.65  
Centroid location :   50.544  -179.330    39.989
Centroid time :      8.443
Variance reduction (%) :  74
 
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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    0    1    0    0            
r-comp:     0    1    0    1    1    0    1    2    1    1    0    0            
t-comp:     0    1    0    1    1    0    1    2    1    1    0    0            
Total number of traces used =  21  
number of runs = 2
starttime = Wed Dec 19 02:54:04 MST 2007
endtime = Wed Dec 19 02:59:11 MST 2007
inversion time = Wed Dec 19 02:58:59 MST 2007 - Wed Dec 19 02:59:11 MST 2007
Solution produced by inversion of channels with var red > 2%



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