[rCMT] Mw=7.1 ANDREANOF ISLANDS, ALEUTIAN IS.
USGS research CMT
researchcmt at geohazards.cr.usgs.gov
Wed Dec 19 09:59:15 GMT 2007
AUTOMATIC solution, not reviewed by a seismologist
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General region : 2007lcaq ANDREANOF ISLANDS, ALEUTI
surface waves (3.0,3.5,7,7.5 mHz)
Stations used : COR FFC KIP MAJO TIXI TLY YAK YSS
Origin time: 2007 353 9 30 30
Original location (lat,lon,depth) : 51.5000 -179.500 56
Moment tensor (x1.e26 dyncm) :
Mrr : 5.291343 Mtt : -4.751468
Mff : -0.539875 Mrt : 4.079671
Mrf : 1.161821 Mtf : -0.974200
T-axis: moment= 6.822 plunge= 70.150 azimuth= 341.855
N-axis: moment= -0.332 plunge= 1.554 azimuth= 76.166
P-axis: moment= -6.489 plunge= 19.784 azimuth= 166.725
best double couple: Mo= 6.655(x1.e26 dyncm) Mw=7.1 tau= 10.4
nodal planes (strike/dip/slip): 75.43/ 64.80/ 88.28 259.46/ 25.25/ 93.65
Centroid location : 50.544 -179.330 39.989
Centroid time : 8.443
Variance reduction (%) : 74
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0- 30- 60- 90- 120- 150- 180- 210- 240- 270- 300- 330-
z-comp: 0 1 0 1 0 0 1 1 0 1 0 0
r-comp: 0 1 0 1 1 0 1 2 1 1 0 0
t-comp: 0 1 0 1 1 0 1 2 1 1 0 0
Total number of traces used = 21
number of runs = 2
starttime = Wed Dec 19 02:54:04 MST 2007
endtime = Wed Dec 19 02:59:11 MST 2007
inversion time = Wed Dec 19 02:58:59 MST 2007 - Wed Dec 19 02:59:11 MST 2007
Solution produced by inversion of channels with var red > 2%
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