[rCMT] Mw=6.5 CENTRAL MID-ATLANTIC RIDGE
USGS research CMT
researchcmt at geohazards.usgs.gov
Thu Apr 24 05:55:18 MST 2008
AUTOMATIC solution, not reviewed by a seismologist
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General region : 2008rfa9 CENTRAL MID-ATLANTIC RIDG
surface waves (3.0,3.5,7,7.5 mHz)
Stations used : BFO ESK LSZ NNA OTAV SDV SJG SUR TSUM
Origin time: 2008 115 12 14 50
Original location (lat,lon,depth) : -1.20000 -23.6000 10
Moment tensor (x1.e26 dyncm) :
Mrr : -0.167666 Mtt : 0.212628
Mff : -0.044961 Mrt : -0.321872
Mrf : -0.233142 Mtf : -0.571243
T-axis: moment= 0.685 plunge= 8.250 azimuth= 215.964
N-axis: moment= 0.070 plunge= 55.292 azimuth= 113.880
P-axis: moment= -0.755 plunge= 33.437 azimuth= 311.458
best double couple: Mo= 0.720(x1.e26 dyncm) Mw=6.5 tau= 5.0
nodal planes (strike/dip/slip): 88.13/ 73.25/-149.15 348.36/ 60.59/-19.32
Centroid location : -1.017 -23.889 18.589
Centroid time : 8.499
Variance reduction (%) : 57
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* P oo-----------*
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0- 30- 60- 90- 120- 150- 180- 210- 240- 270- 300- 330-
z-comp: 0 1 2 0 0 2 0 0 3 0 0 0
r-comp: 0 0 1 0 0 2 0 0 2 1 0 0
t-comp: 0 0 1 0 0 2 0 0 3 1 0 0
Total number of traces used = 21
number of runs = 10
starttime = Thu Apr 24 06:34:22 MDT 2008
endtime = Thu Apr 24 06:55:18 MDT 2008
inversion time = Thu Apr 24 06:55:14 MDT 2008 - Thu Apr 24 06:55:17 MDT 2008
Solution produced by inversion of channels with var red > 2%
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