[rCMT] Mw=5.8 TONGA
USGS research CMT
researchcmt at geohazards.usgs.gov
Wed Jul 16 09:03:57 GMT 2008
AUTOMATIC solution, not reviewed by a seismologist
--------------------------------------------------
General region : 2008unam TONGA
surface waves (3.0,3.5,7,7.5 mHz)
Stations used : CASY COR CTAO KIP MAJO PET PMG RPN
Origin time: 2008 198 8 11 7
Original location (lat,lon,depth) : -16.6000 -173.000 34
Moment tensor (x1.e26 dyncm) :
Mrr : 0.035133 Mtt : -0.039059
Mff : 0.003926 Mrt : -0.044456
Mrf : -0.029230 Mtf : 0.002991
T-axis: moment= 0.068 plunge= 57.380 azimuth= 131.998
N-axis: moment= -0.007 plunge= 17.022 azimuth= 250.575
P-axis: moment= -0.061 plunge= 26.914 azimuth= 349.515
best double couple: Mo= 0.065(x1.e26 dyncm) Mw=5.8 tau= 2.2
nodal planes (strike/dip/slip): 114.79/ 23.70/136.74 245.54/ 74.01/ 72.27
Centroid location : -15.772 -173.521 27.538
Centroid time : 11.122
Variance reduction (%) : 24
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** P **
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* *
* oooooooooo*
** oooooo---------**
*o oooooo---------------*
**o oooo--------------------**
**o oooo-----+-----------------**
**oo oooo--------------------------**
* ooooo-----------------------------*
**ooo -----------------T-----------**
*o ooo---------------------------o*
* ooo------------------------o*
** -ooo-------------------oo**
** -ooooo-----------ooooo**
*** ---ooooooooooooo-***
**** ----------****
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0- 30- 60- 90- 120- 150- 180- 210- 240- 270- 300- 330-
z-comp: 0 0 1 0 1 1 1 1 0 1 0 1
r-comp: 0 0 0 0 0 0 0 0 1 0 0 0
t-comp: 0 0 1 0 0 1 0 1 0 1 0 0
Total number of traces used = 12
number of runs = 13
starttime = Wed Jul 16 02:31:38 MDT 2008
endtime = Wed Jul 16 03:03:55 MDT 2008
inversion time = Wed Jul 16 03:03:51 MDT 2008 - Wed Jul 16 03:03:54 MDT 2008
Solution produced by inversion of channels with var red > 2%
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