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Full tensors solutions

To: vallee@geoazur.unice.fr
From: scardec@geoazur.unice.fr
Subject:  [SCARDEC] Recent Mw=5.7 earthquake, located in TONGA
Message-Id: <20120818182847.7542AE743FF@alto.unice.fr>
Date: Sat, 18 Aug 2012 20:28:47 +0200 (CEST)

2012 08 18 17 45 02.0 -15.582 -173.095 19.0 5.7 155 30 64 4 63 104
INDICATIF_SEISME 20120818_174502_TONGA

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Errors-To: researchcmt-bounces@geohazards.usgs.gov

USGS research CMT: maintained and developed by Jascha Polet at Cal Poly Pomona.
This is a research system and solutions are *not* official USGS earthquake magnitudes.
AUTOMATIC solution, not reviewed by a seismologist, new beta version 2/13/12
More details on this rCMT at http://neic.cr.usgs.gov/beta/rcmt/events/120818174502.C000C2NP
usr/passwd : rcmt/rcmt
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General region :  C000C2NP TONGA                                             
surface waves  (3.0,3.5,7,7.5 mHz)
Stations used :  CTAO KIP MAJO PET PMG SNZO TAU                                                                     
Origin time: 2012  231  17  45   2
Origin time reformatted: 2012-08-18 17:45:02
Original location (lat,lon,depth) : -15.6  -173.1  10             
Moment tensor (x1.e26 dyncm) :
Mrr :      0.062283 Mtt :     -0.011564
Mff :     -0.050719 Mrt :      0.066953
Mrf :     -0.031884 Mtf :     -0.008768
T-axis:  moment=     0.108   plunge=    58.162  azimuth=    21.973    
N-axis:  moment=    -0.045   plunge=    18.038  azimuth=   143.605    
P-axis:  moment=    -0.063   plunge=    25.282  azimuth=   242.453    
best double couple: Mo=    0.086(x1.e26 dyncm)  Mw=5.9  tau=  2.4     
nodal planes (strike/dip/slip):    6.70/ 25.48/136.03     137.75/ 72.62/ 71.07  
Centroid location :  -15.637  -172.648    25.361
Centroid time :      6.116
Variance reduction (%) :  18.5

                   ***********              
               ****---------oo****          
            ***----------------ooo***       
          **o--------------------oo--**     
         ** oo--------------------ooo-**    
        *    o----------------------o---*   
       *     -o------------T---------o---*  
      **      oo---------------------oo--** 
      *        -oo--------------------o---* 
     **        --oo-------------------o-- **
     **          -ooo---+-------------o-  **
     **           --oo----------------o   **
      *              ooo-------------oo   * 
      **               ooo--------   o   ** 
       *    P            ooo        oo   *  
        *                  ooo     oo   *   
         **                   oooooo  **    
          **                    ooooo**     
            ***              oooo ***       
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          0-   30-  60-  90-  120- 150- 180- 210- 240- 270- 300- 330-           
z-comp:     0    0    0    0    0    0    0    1    1    1    1    1            
r-comp:     0    0    0    0    0    1    1    0    1    1    0    1            
t-comp:     0    0    0    0    0    0    0    0    1    1    0    1            
Total number of traces used =  13  
number of runs = 12
starttime = Sat Aug 18 12:06:56 MDT 2012
Solution produced by inversion of channels with var red > 2%
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To: eqinfo-mt@gfz-potsdam.de
X-Original-Message-ID: <502febff.kghwPuuI6V4N5vyR%eqinfo@gfz-potsdam.de>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Message-ID: 
Subject: MT solution GFZ event gfz2012qfov

GFZ Event gfz2012qfov
12/08/18 17:45:03.10
Samoa Islands Region
Epicenter: -15.65 -172.88
MW 5.7

GFZ MOMENT TENSOR SOLUTION
Depth  29         No. of sta: 51
Moment Tensor;   Scale 10**17 Nm
  Mrr= 5.20       Mtt=-1.22
  Mpp=-3.98       Mrt= 1.14
  Mrp=-0.87       Mtp=-1.22
Principal axes:
  T  Val=  5.47  Plg=79  Azm= 28
  N       -1.39       9      175
  P       -4.07       6      266

Best Double Couple:Mo=4.9*10**17
 NP1:Strike=167 Dip=52 Slip=  78
 NP2:         6     40       104

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To: cmtcustomers@ldeo.columbia.edu
Subject: quick CMT: 2012/08/18, 17:45: 2.2, TONGA ISLANDS, MW=5.7
X-Scanned-By: MIMEDefang 2.49 on 129.236.10.30


Here is the solution for the recent event.

August 18, 2012, TONGA ISLANDS, MW=5.7

Meredith Nettles
Goran Ekstrom

CENTROID-MOMENT-TENSOR  SOLUTION
GCMT EVENT:     C201208181745A  
DATA: II LD IU DK CU MN G  IC GE
L.P.BODY WAVES:128S, 245C, T= 40
MANTLE WAVES:   68S,  76C, T=125
SURFACE WAVES: 136S, 262C, T= 50
TIMESTAMP:      Q-20120818184859
CENTROID LOCATION:
ORIGIN TIME:      17:45:09.5 0.1
LAT:15.56S 0.01;LON:172.57W 0.01
DEP: 18.9  0.3;TRIANG HDUR:  1.8
MOMENT TENSOR: SCALE 10**24 D-CM
RR= 3.950 0.048; TT= 0.366 0.037
PP=-4.320 0.041; RT= 0.020 0.089
RP= 2.920 0.099; TP= 0.603 0.030
PRINCIPAL AXES:
1.(T) VAL=  4.886;PLG=72;AZM=278
2.(N)       0.414;     4;    175
3.(P)      -5.304;    17;     84
BEST DBLE.COUPLE:M0= 5.10*10**24
NP1: STRIKE=167;DIP=28;SLIP=  81
NP2: STRIKE=357;DIP=63;SLIP=  95

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To: alert@emsc-csem.org, zirbes@usgs.gov
Subject: USGS Body-Wave Moment Tensor Solution

12/08/18 17:45:01.95

Epicenter: -15.592 -173.075
MW 5.7

USGS MOMENT TENSOR SOLUTION
Depth  11         No. of sta: 40
Moment Tensor;   Scale 10**17 Nm
  Mrr= 3.37       Mtt=-0.80
  Mpp=-2.56       Mrt= 0.89
  Mrp= 2.11       Mtp=-1.03
 Principal axes:
  T  Val=  4.10  Plg=72  Azm=292
  N       -0.33       1       24
  P       -3.78      18      114

Best Double Couple:Mo=4.0*10**17
 NP1:Strike= 24 Dip=63 Slip=  89
 NP2:       206     27        92


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