[rCMT] Mw=6.4 PHILIPPINE ISLANDS REGION
USGS research CMT
researchcmt at geohazards.cr.usgs.gov
Mon Aug 20 14:25:45 GMT 2007
AUTOMATIC solution, not reviewed by a seismologist
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General region : 2007ggaz PHILIPPINE ISLANDS REGION
surface waves (3.0,3.5,7,7.5 mHz)
Stations used : CTAO INCN MAJO PET PMG TAU TLY YAK YSS
Origin time: 2007 232 13 46 18
Original location (lat,lon,depth) : 6.10000 127.400 10
Moment tensor (x1.e26 dyncm) :
Mrr : -0.571914 Mtt : 0.076211
Mff : 0.495703 Mrt : 0.075531
Mrf : -0.214628 Mtf : -0.110838
T-axis: moment= 0.568 plunge= 11.244 azimuth= 75.598
N-axis: moment= 0.049 plunge= 1.700 azimuth= 345.260
P-axis: moment= -0.618 plunge= 78.625 azimuth= 246.778
best double couple: Mo= 0.593(x1.e26 dyncm) Mw=6.4 tau= 4.7
nodal planes (strike/dip/slip): 344.12/ 56.27/-92.04 167.80/ 33.79/-86.94
Centroid location : 6.001 127.345 18.758
Centroid time : -5.864
Variance reduction (%) : 59
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0- 30- 60- 90- 120- 150- 180- 210- 240- 270- 300- 330-
z-comp: 1 2 0 0 0 4 1 0 0 0 0 0
r-comp: 1 2 0 0 0 3 2 0 0 0 0 0
t-comp: 1 2 0 0 0 3 1 0 0 0 0 0
Total number of traces used = 23
number of runs = 4
starttime = Mon Aug 20 08:16:53 MDT 2007
endtime = Mon Aug 20 08:25:43 MDT 2007
inversion time = Mon Aug 20 08:25:37 MDT 2007 - Mon Aug 20 08:25:43 MDT 2007
Solution produced by inversion of channels with var red > 2%
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