[rCMT] (Update) Mw=6.2 OFFSHORE TARAPACA, CHILE

USGS research CMT researchcmt at geohazards.usgs.gov
Fri Apr 17 03:30:00 GMT 2009


HUMAN REVIEWED solution
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Removed data from malfunctioning station SDV
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General region :  2009fnaf OFFSHORE TARAPACA, CHILE                          
surface waves  (3.0,3.5,7,7.5 mHz)
Stations used :  BFO CASY COR ESK FFC HKT KEV KMBO KONO LSZ PMSA RPN SFJD SJG SUR TAU TUC WCI                       
Origin time: 2009  107   2   8   6
Original location (lat,lon,depth) :     -19.6000   -70.4000  10   
Moment tensor (x1.e26 dyncm) :
Mrr :      0.095142 Mtt :     -0.011781
Mff :     -0.083361 Mrt :      0.065782
Mrf :     -0.219880 Mtf :      0.025413
T-axis:  moment=     0.250   plunge=    56.059  azimuth=    73.702    
N-axis:  moment=    -0.004   plunge=     0.339  azimuth=   343.198    
P-axis:  moment=    -0.246   plunge=    33.939  azimuth=   252.970    
best double couple: Mo=    0.248(x1.e26 dyncm)  Mw=6.2  tau=  3.5     
nodal planes (strike/dip/slip):  341.46/ 11.07/ 88.23     163.26/ 78.94/ 90.35  
Centroid location :  -19.493   -70.299    20.113
Centroid time :     12.174
Variance reduction (%) :  29
 
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      *             oo------------------o-* 
     **              o---------T--------oo**
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      *     P         oo----------------oo* 
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          0-   30-  60-  90-  120- 150- 180- 210- 240- 270- 300- 330-           
z-comp:     1    1    2    0    3    3    3    2    0    1    0    2            
r-comp:     0    0    1    0    2    1    1    1    0    1    0    1            
t-comp:     0    0    0    0    1    2    0    1    0    1    0    0            
Total number of traces used =  31  


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