[rCMT] Mw=6.1 NORTHWEST OF RYUKYU ISLANDS

USGS research CMT researchcmt at geohazards.cr.usgs.gov
Tue Aug 7 00:36:57 GMT 2007


AUTOMATIC solution, not reviewed by a seismologist
--------------------------------------------------
General region :  2007ftac NORTHWEST OF RYUKYU ISLAN                         
surface waves  (3.0,3.5,7,7.5 mHz)
Stations used :  KURK PET PMG TIXI TLY YAK YSS                                                                      
Origin time: 2007  219   0   2  26
Original location (lat,lon,depth) :      27.4000    126.700  40   
Moment tensor (x1.e26 dyncm) :
Mrr :      0.025767 Mtt :      0.011149
Mff :     -0.036916 Mrt :      0.093206
Mrf :      0.127695 Mtf :      0.130531
T-axis:  moment=     0.235   plunge=    36.728  azimuth=   315.884    
N-axis:  moment=    -0.074   plunge=    46.266  azimuth=   174.635    
P-axis:  moment=    -0.160   plunge=    20.292  azimuth=    61.899    
best double couple: Mo=    0.197(x1.e26 dyncm)  Mw=6.1  tau=  3.2     
nodal planes (strike/dip/slip):    5.51/ 79.77/137.24     104.84/ 48.08/ 13.81  
Centroid location :   27.677   126.261    42.332
Centroid time :      2.222
Variance reduction (%) :  26
 
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          0-   30-  60-  90-  120- 150- 180- 210- 240- 270- 300- 330-           
z-comp:     0    1    0    0    1    2    0    1    0    0    0    0            
r-comp:     0    1    0    0    1    1    0    1    0    0    0    0            
t-comp:     0    1    0    0    1    1    1    1    0    0    0    0            
Total number of traces used =  14  
number of runs = 9
starttime = Mon Aug 6 18:16:11 MDT 2007
endtime = Mon Aug 6 18:36:55 MDT 2007
inversion time = Mon Aug 6 18:36:50 MDT 2007 - Mon Aug 6 18:36:55 MDT 2007
Solution produced by inversion of channels with var red > 2%



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