[rCMT] (Update) Mw=7.2 SANTA CRUZ ISLANDS

USGS research CMT researchcmt at geohazards.cr.usgs.gov
Sun Sep 2 20:06:00 GMT 2007


HUMAN REVIEWED solution
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Initial depth was changed from 156 to 18 km
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General region :  2007guae SANTA CRUZ ISLANDS                                
surface waves  (3.0,3.5,7,7.5 mHz)
Stations used :  ARU BFO CASY COR DGAR ESK GNI HKT INCN KEV KIP KIV KMBO KONO KURK LSZ LVC LVZ MAJO OTAV PET PMSA SD
Origin time: 2007  245   1   5  32
Original location (lat,lon,depth) :     -11.6000    165.600  18   
Moment tensor (x1.e26 dyncm) :
Mrr :      6.233782 Mtt :     -1.393333
Mff :     -4.840449 Mrt :      3.888640
Mrf :     -4.821543 Mtf :      1.650229
T-axis:  moment=     8.992   plunge=    65.814  azimuth=    43.607    
N-axis:  moment=    -0.951   plunge=     6.852  azimuth=   149.126    
P-axis:  moment=    -8.041   plunge=    23.076  azimuth=   242.061    
best double couple: Mo=    8.516(x1.e26 dyncm)  Mw=7.2  tau= 11.3     
nodal planes (strike/dip/slip):  345.78/ 22.75/107.97     146.40/ 68.41/ 82.63  
Centroid location :  -11.636   165.372    23.434
Centroid time :     -0.658
Variance reduction (%) :  85
 
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          0-   30-  60-  90-  120- 150- 180- 210- 240- 270- 300- 330-           
z-comp:     1    1    1    2    4    1    8    6    0    2    3    2            
r-comp:     0    1    1    3    3    1    7    6    0    0    2    1            
t-comp:     0    1    0    0    3    0    2    4    0    0    1    1            
Total number of traces used =  68  



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