[rCMT] Mw=6.6 CENTRAL MID-ATLANTIC RIDGE

USGS research CMT researchcmt at geohazards.cr.usgs.gov
Mon Aug 20 23:21:43 GMT 2007


AUTOMATIC solution, not reviewed by a seismologist
--------------------------------------------------
General region :  2007ggcq CENTRAL MID-ATLANTIC RIDG                         
surface waves  (3.0,3.5,7,7.5 mHz)
Stations used : BFO ESK HKT LVC NNA OTAV SDV SJG WCI                                                                
Origin time: 2007  232  22  43   2
Original location (lat,lon,depth) :      8.50000   -40.2000  254  
Moment tensor (x1.e26 dyncm) :
Mrr :     -0.055878 Mtt :     -0.003144
Mff :      0.059022 Mrt :      0.614256
Mrf :     -0.607313 Mtf :     -0.573188
T-axis:  moment=     1.197   plunge=    34.577  azimuth=    45.911    
N-axis:  moment=    -0.541   plunge=     9.568  azimuth=   309.239    
P-axis:  moment=    -0.656   plunge=    53.747  azimuth=   205.950    
best double couple: Mo=    0.926(x1.e26 dyncm)  Mw=6.6  tau=  5.4     
nodal planes (strike/dip/slip):  172.95/ 13.71/-45.46     307.58/ 80.27/-99.71  
Centroid location :    8.730   -40.544    10.000
Centroid time :    -22.976
Variance reduction (%) :  48
 
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          0-   30-  60-  90-  120- 150- 180- 210- 240- 270- 300- 330-           
z-comp:     0    0    0    0    1    1    0    2    2    1    1    0            
r-comp:     0    0    0    0    1    1    0    1    2    2    1    0            
t-comp:     0    0    0    0    1    1    0    1    2    2    1    0            
Total number of traces used =  24  
number of runs = 11
starttime = Mon Aug 20 16:55:37 MDT 2007
endtime = Mon Aug 20 17:21:27 MDT 2007
inversion time = Mon Aug 20 17:21:20 MDT 2007 - Mon Aug 20 17:21:27 MDT 2007
Solution produced by inversion of all available channels



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