[rCMT] Mw=7.8 ANTOFAGASTA, CHILE
USGS research CMT
researchcmt at geohazards.cr.usgs.gov
Wed Nov 14 16:25:46 GMT 2007
AUTOMATIC solution, not reviewed by a seismologist
--------------------------------------------------
General region : 2007jsat ANTOFAGASTA, CHILE
surface waves (3.0,3.5,7,7.5 mHz)
Stations used : CCM HKT OTAV PMSA RPN SJG TUC WCI
Origin time: 2007 318 15 40 53
Original location (lat,lon,depth) : -22.2000 -69.8000 60
Moment tensor (x1.e26 dyncm) :
Mrr : 36.253967 Mtt : -0.586613
Mff : -35.667355 Mrt : 11.968241
Mrf : -54.784016 Mtf : 5.231728
T-axis: moment= 66.798 plunge= 61.406 azimuth= 75.482
N-axis: moment= 0.050 plunge= 1.843 azimuth= 168.867
P-axis: moment= -66.848 plunge= 28.524 azimuth= 259.870
best double couple: Mo= 66.823(x1.e26 dyncm) Mw=7.8 tau= 22.5
nodal planes (strike/dip/slip): 355.08/ 16.56/ 96.48 168.32/ 73.55/ 88.08
Centroid location : -22.782 -69.954 38.432
Centroid time : 11.531
Variance reduction (%) : 73
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* o-----------------oo-*
* o------------------o--*
** o------------------oo-**
* oo------------------o--*
** o---------T--------oo-**
** o---+---------------o-**
** P oo-----------------oo-**
* o-----------------o--*
** oo----------------o-**
* o---------------oo-*
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** oo-----------oo**
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0- 30- 60- 90- 120- 150- 180- 210- 240- 270- 300- 330-
z-comp: 1 0 0 0 0 1 4 1 0 1 0 0
r-comp: 1 0 0 0 0 0 4 0 0 1 0 0
t-comp: 1 0 0 0 0 1 4 0 0 1 0 0
Total number of traces used = 21
number of runs = 5
starttime = Wed Nov 14 09:12:24 MST 2007
endtime = Wed Nov 14 09:25:43 MST 2007
inversion time = Wed Nov 14 09:25:31 MST 2007 - Wed Nov 14 09:25:43 MST 2007
Solution produced by inversion of channels with var red > 2%
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