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

USGS research CMT researchcmt at geohazards.usgs.gov
Tue Apr 15 23:25:51 MST 2008


AUTOMATIC solution, not reviewed by a seismologist
--------------------------------------------------
General region :  2008qxam ANDREANOF ISLANDS, ALEUTI                         
surface waves  (3.0,3.5,7,7.5 mHz)
Stations used :  COR FFC KIP MAJO TLY YAK YSS                                                                       
Origin time: 2008  107   5  54  23
Original location (lat,lon,depth) :      51.9000   -179.100  32   
Moment tensor (x1.e26 dyncm) :
Mrr :     -0.085948 Mtt :      0.551177
Mff :     -0.465230 Mrt :      0.204095
Mrf :      1.906401 Mtf :     -0.558944
T-axis:  moment=     1.688   plunge=    44.843  azimuth=   253.033    
N-axis:  moment=     0.611   plunge=    16.345  azimuth=   359.991    
P-axis:  moment=    -2.299   plunge=    40.602  azimuth=   104.551    
best double couple: Mo=    1.993(x1.e26 dyncm)  Mw=6.8  tau=  7.0     
nodal planes (strike/dip/slip):  359.34/ 87.80/ 73.64     261.88/ 16.50/172.22  
Centroid location :   51.404  -179.181    13.660
Centroid time :      3.196
Variance reduction (%) :  62
 
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          0-   30-  60-  90-  120- 150- 180- 210- 240- 270- 300- 330-           
z-comp:     0    1    0    1    1    0    0    1    1    1    0    0            
r-comp:     0    1    0    1    1    0    0    2    0    1    0    0            
t-comp:     0    1    0    1    1    0    0    2    1    1    0    0            
Total number of traces used =  19  
number of runs = 1
starttime = Wed Apr 16 00:25:25 MDT 2008
endtime = Wed Apr 16 00:25:51 MDT 2008
inversion time = Wed Apr 16 00:25:48 MDT 2008 - Wed Apr 16 00:25:51 MDT 2008
Solution produced by inversion of channels with var red > 2%


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