[rCMT] Mw=5.8 NORTHERN MID-ATLANTIC RIDGE

USGS research CMT researchcmt at geohazards.cr.usgs.gov
Thu Oct 18 16:44:18 GMT 2007


AUTOMATIC solution, not reviewed by a seismologist
--------------------------------------------------
General region :  2007iqa4 NORTHERN MID-ATLANTIC RID                         
surface waves  (3.0,3.5,7,7.5 mHz)
Stations used :  BFO ESK FFC KONO OTAV SDV SFJD SJG WCI                                                             
Origin time: 2007  291  16  13  14
Original location (lat,lon,depth) :      30.1000   -42.6000  10   
Moment tensor (x1.e26 dyncm) :
Mrr :     -0.018816 Mtt :      0.028468
Mff :     -0.009653 Mrt :      0.024789
Mrf :      0.011151 Mtf :      0.044428
T-axis:  moment=     0.066   plunge=    17.544  azimuth=   327.356    
N-axis:  moment=    -0.026   plunge=    65.157  azimuth=   100.423    
P-axis:  moment=    -0.040   plunge=    17.017  azimuth=   231.804    
best double couple: Mo=    0.053(x1.e26 dyncm)  Mw=5.8  tau=  2.1     
nodal planes (strike/dip/slip):    9.49/ 65.16/179.61      99.65/ 89.64/ 24.81  
Centroid location :   30.727   -43.147    10.000
Centroid time :      3.635
Variance reduction (%) :  37
 
                   ***********              
               ****---------o-****          
            ***-------------oo-   ***       
          **----T------------o-      **     
         **-------------------o       **    
        *-------------------- o         *   
       *--------------------  o          *  
      **------------------    o          ** 
      *-----------------      o           * 
     **---------o---          o           **
     **             oooo+oooo o           **
     **                      oo o         **
      *                      o            * 
      **                    oo          -** 
       *                    o       -----*  
        *   P              oo    -------*   
         **               oo  --------**    
          **             oo ---------**     
            ***         oo--------***       
               ****   oo------****          
                   ***********              
 
          0-   30-  60-  90-  120- 150- 180- 210- 240- 270- 300- 330-           
z-comp:     0    0    0    0    2    0    0    1    1    1    2    0            
r-comp:     0    0    0    0    3    0    1    1    0    0    0    0            
t-comp:     0    0    0    0    2    0    0    1    1    0    0    0            
Total number of traces used =  16  
number of runs = 6
starttime = Thu Oct 18 10:29:25 MDT 2007
endtime = Thu Oct 18 10:44:15 MDT 2007
inversion time = Thu Oct 18 10:44:09 MDT 2007 - Thu Oct 18 10:44:15 MDT 2007
Solution produced by inversion of channels with var red > 2%



More information about the researchCMT mailing list