[rCMT] Mw=6.3 SOUTH SANDWICH ISLANDS REGION

USGS research CMT researchcmt at geohazards.cr.usgs.gov
Tue Jul 31 03:32:22 GMT 2007


AUTOMATIC solution, not reviewed by a seismologist
--------------------------------------------------
General region :  2007flae SOUTH SANDWICH ISLANDS RE                         
surface waves  (3.0,3.5,7,7.5 mHz)
Stations used : CASY LSZ LVC NNA OTAV SDV SUR TSUM                                                                  
Origin time: 2007  212   2  42  37
Original location (lat,lon,depth) :     -56.1000   -27.8000  10   
Moment tensor (x1.e26 dyncm) :
Mrr :     -0.011646 Mtt :      0.028636
Mff :     -0.016990 Mrt :     -0.097511
Mrf :      0.376920 Mtf :     -0.002450
T-axis:  moment=     0.377   plunge=    45.009  azimuth=   253.351    
N-axis:  moment=     0.025   plunge=     1.960  azimuth=   345.313    
P-axis:  moment=    -0.402   plunge=    44.924  azimuth=    77.269    
best double couple: Mo=    0.390(x1.e26 dyncm)  Mw=6.3  tau=  4.0     
nodal planes (strike/dip/slip):  254.06/  1.96/178.75     345.31/ 89.96/ 87.56  
Centroid location :  -56.250   -29.961    11.061
Centroid time :     25.406
Variance reduction (%) :   5
 
                   ***********              
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          **o---------              o**     
         **-----------                **    
        *o------------                 o*   
       *o--------------                  *  
      **---------------                  ** 
      *----------------                   * 
     **-----------------o         P       **
     **-----------------+                 **
     **-----------------o                 **
      *-------T----------                 * 
      **------------------               ** 
       *------------------               *  
        *------------------             *   
         **-----------------          **    
          **----------------         **     
            ***--------------     ***       
               ****-----------****          
                   ***********              
 
          0-   30-  60-  90-  120- 150- 180- 210- 240- 270- 300- 330-           
z-comp:     1    0    0    3    0    0    0    2    0    0    0    0            
r-comp:     1    0    0    2    0    0    0    3    1    0    0    0            
t-comp:     1    0    0    2    0    0    0    3    1    0    0    0            
Total number of traces used =  20  
number of runs = 14
starttime = Mon Jul 30 21:02:54 MDT 2007
endtime = Mon Jul 30 21:32:18 MDT 2007
inversion time = Mon Jul 30 21:32:14 MDT 2007 - Mon Jul 30 21:32:17 MDT 2007
Solution produced by inversion of all available channels



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