[rCMT] Mw=6.4 TARAPACA, CHILE

USGS research CMT researchcmt at geohazards.usgs.gov
Mon Feb 4 10:42:59 MST 2008


AUTOMATIC solution, not reviewed by a seismologist
--------------------------------------------------
General region :  2008naa1 TARAPACA, CHILE                                   
surface waves  (3.0,3.5,7,7.5 mHz)
Stations used :  CCM HKT OTAV RPN SDV SJG WCI                                                                       
Origin time: 2008   35  17   1  30
Original location (lat,lon,depth) :     -20.0000   -69.8000  35   
Moment tensor (x1.e26 dyncm) :
Mrr :      0.306907 Mtt :     -0.039544
Mff :     -0.267363 Mrt :      0.155783
Mrf :     -0.452136 Mtf :      0.026271
T-axis:  moment=     0.580   plunge=    60.151  azimuth=    66.485    
N-axis:  moment=    -0.045   plunge=     4.440  azimuth=   164.262    
P-axis:  moment=    -0.536   plunge=    29.449  azimuth=   256.774    
best double couple: Mo=    0.558(x1.e26 dyncm)  Mw=6.4  tau=  4.6     
nodal planes (strike/dip/slip):  359.91/ 16.06/106.25     163.04/ 74.59/ 85.39  
Centroid location :  -21.456   -68.799    37.189
Centroid time :    -34.344
Variance reduction (%) :  28
 
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         **       o-----------------oo**    
        *         oo-----------------oo-*   
       *           o------------------oo-*  
      **           o-------------------o-** 
      *            oo------------------oo-* 
     **             o---------T---------o-**
     **             oo--+---------------o-**
     **              o------------------o-**
      *    P         oo----------------oo-* 
      **              oo---------------o-** 
       *               o--------------oo-*  
        *              oo------------oo-*   
         **             oo----------oo**    
          **             oo-------oo-**     
            ***           ooo--ooo***       
               ****         oo****          
                   ***********              
 
          0-   30-  60-  90-  120- 150- 180- 210- 240- 270- 300- 330-           
z-comp:     0    0    0    0    0    1    3    0    0    1    0    0            
r-comp:     0    0    0    0    0    0    3    0    0    1    0    0            
t-comp:     0    0    0    0    0    0    3    0    0    0    0    0            
Total number of traces used =  12  
number of runs = 4
starttime = Mon Feb 4 10:29:58 MST 2008
endtime = Mon Feb 4 10:42:54 MST 2008
inversion time = Mon Feb 4 10:42:38 MST 2008 - Mon Feb 4 10:42:53 MST 2008
Solution produced by inversion of channels with var red > 2%


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