[rCMT] Mw=5.8 NORTH OF ASCENSION ISLAND
USGS research CMT
researchcmt at geohazards.cr.usgs.gov
Tue Nov 27 10:54:54 GMT 2007
AUTOMATIC solution, not reviewed by a seismologist
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General region : 2007kfaz NORTH OF ASCENSION ISLAND
surface waves (3.0,3.5,7,7.5 mHz)
Stations used : BFO ESK LSZ LVC NNA SDV SJG TSUM
Origin time: 2007 331 10 13 50
Original location (lat,lon,depth) : -1.30000 -13.2000 10
Moment tensor (x1.e26 dyncm) :
Mrr : 0.030148 Mtt : -0.000174
Mff : -0.029974 Mrt : -0.009349
Mrf : 0.059354 Mtf : 0.000422
T-axis: moment= 0.068 plunge= 58.079 azimuth= 257.547
N-axis: moment= -0.001 plunge= 3.196 azimuth= 352.689
P-axis: moment= -0.067 plunge= 31.722 azimuth= 84.667
best double couple: Mo= 0.067(x1.e26 dyncm) Mw=5.8 tau= 2.3
nodal planes (strike/dip/slip): 351.94/ 76.80/ 86.72 186.04/ 13.60/103.72
Centroid location : -0.669 -12.971 19.070
Centroid time : -3.435
Variance reduction (%) : 14
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*-o-----------------oo *
**-o------------------o P **
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0- 30- 60- 90- 120- 150- 180- 210- 240- 270- 300- 330-
z-comp: 0 0 1 0 0 2 0 0 1 1 0 0
r-comp: 0 1 0 0 0 1 0 0 2 2 0 0
t-comp: 0 0 0 0 0 0 0 0 0 1 0 0
Total number of traces used = 12
number of runs = 8
starttime = Tue Nov 27 03:33:15 MST 2007
endtime = Tue Nov 27 03:54:50 MST 2007
inversion time = Tue Nov 27 03:54:42 MST 2007 - Tue Nov 27 03:54:50 MST 2007
Solution produced by inversion of channels with var red > 2%
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