logo - home






Current time: 2014-08-27 19:03:23 UTC
You are here : EMSC > Earthquake > Full tensors solutions
    About EMSC

Full tensors solutions

To: vallee@geoazur.unice.fr
From: scardec@geoazur.unice.fr
Subject:  [SCARDEC] Recent Mw=7.3 earthquake, located in OFF EAST COAST OF HONSHU, JAPAN
Message-Id: <20121207090143.3E2E3E7441A@alto.unice.fr>
Date: Fri,  7 Dec 2012 10:01:43 +0100 (CET)

2012 12 07 08 18 24.0 37.889 144.090 36.0 7.3 14 40 106 173 52 77
INDICATIF_SEISME 20121207_081824_OFF_EAST_COAST_OF_HONSHU__JAPAN

##########################################################
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, beta version 11/18/12
More details on this rCMT at http://neic.cr.usgs.gov/beta/rcmt/events/121207081824.C000E5N4
usr/passwd : rcmt/rcmt  Event only available after completion bootstrapping
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
General region :  C000E5N4 OFF EAST COAST OF HONSHU,                         
surface waves  (3.0,3.5,7,7.5 mHz)
Stations used :  AAK BILL CTAO KBS KEV KIP KURK LVZ TIXI ULN                                                        
Origin time: 2012  342   8  18  24
Origin time reformatted: 2012-12-07 08:18:24
Original location (lat,lon,depth) :  37.9   144.1 13              
Moment tensor (x1.e26 dyncm) :
Mrr :     -0.904490 Mtt :      1.814477
Mff :     -0.909987 Mrt :      3.453576
Mrf :    -59.881416 Mtf :      2.152459
T-axis:  moment=    58.989   plunge=    45.024  azimuth=    88.692    
N-axis:  moment=     2.050   plunge=     1.897  azimuth=   356.793    
P-axis:  moment=   -61.039   plunge=    44.913  azimuth=   264.900    
best double couple: Mo=   60.014(x1.e26 dyncm)  Mw=7.8  tau= 21.7     
nodal planes (strike/dip/slip):  268.48/  1.90/  1.69     176.79/ 89.94/ 91.84  
Centroid location :   37.576   145.025    12.942
Centroid time :     10.605
Variance reduction (%) :  71.6

                   ***********              
               ****o   ------o****          
            ***o       ----------o***       
          **o           ------------o**     
         **             --------------**    
        *o              ---------------o*   
       *o               ----------------o*  
      **                -----------------** 
      *                 ------------------* 
     **                 o-----------------**
     **       P         +---------T-------**
     **                 o-----------------**
      *                  -----------------* 
      **                 ----------------** 
       *                 ----------------*  
        *                ---------------*   
         **              -------------**    
          **             ------------**     
            ***          ---------***       
               ****      -----****          
                   ***********              

          0-   30-  60-  90-  120- 150- 180- 210- 240- 270- 300- 330-           
z-comp:     1    0    1    0    0    1    4    2    1    0    0    0            
r-comp:     1    0    1    0    0    1    4    2    1    0    0    0            
t-comp:     0    0    1    0    0    0    3    2    1    0    0    0            
Total number of traces used =  27  
number of runs = 9
starttime = Fri Dec 7 01:33:06 MST 2012
depth loop = Fri Dec 7 02:00:44 MST 2012 - Fri Dec 7 02:01:06 MST 2012
Solution produced by inversion of channels with var red > 2%
Initial magnitude 7.3  : depth search was triggered. Initial depth 36 km.
DInit  CMTDep  VarRed
-------------------
020     10.000 52.56
040     13.175 56.39
060     18.981 51.49
100     150.791 44.79
200     243.222 48.86
300     277.482 49.16
400     310.862 48.80
500     340.391 47.15
600     246.764 33.59
_______________________________________________
researchCMT mailing list
You cannot post to this mailing list. It is for distribution only.
Questions comments? Ask Jascha, researchcmt-owner@geohazards.cr.usgs.gov
Archive: http://geohazards.cr.usgs.gov/pipermail/researchcmt/
To unsubscribe: https://geohazards.usgs.gov/mailman/listinfo/researchcmt

##########################################################
To: eqinfo-mt@gfz-potsdam.de
X-Original-Message-ID: <50c1ace7.m6NFdnii/ba0cUSM%eqinfo@gfz-potsdam.de>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Message-ID: 
Subject: MT solution GFZ event gfz2012xzqz

GFZ Event gfz2012xzqz
12/12/07 08:18:20.35
Off East Coast of Honshu, Japan
Epicenter: 37.49 144.38
MW 7.3

GFZ MOMENT TENSOR SOLUTION
Depth  19          No. of sta: 8
Moment Tensor;   Scale 10**20 Nm
  Mrr=-0.29       Mtt= 0.21
  Mpp= 0.08       Mrt=-0.46
  Mrp=-0.90       Mtp= 0.21
Principal axes:
  T  Val=  1.01  Plg=38  Azm=125
  N        0.08       7       29
  P       -1.09      51      291

Best Double Couple:Mo=1.1*10**20
 NP1:Strike= 29 Dip=83 Slip= -96
 NP2:       253     10       -45

           ###########           
        ####----------##-        
     ###----------------##--     
    ##-----------------#####-    
  ##------------------########-  
  #------------------##########  
 #------   ----------########### 
#------- P ---------#############
#-------   --------##############
#-----------------###############
-----------------################
#---------------#################
 --------------#########   ##### 
  ------------########## T ####  
  -----------###########   ####  
    --------#################    
     -----##################     
        -################        
           ###########           


#############################################################
This message is sent to you because you are subscribed to
  the mailing list .
To unsubscribe, E-mail to: 
To switch to the DIGEST mode, E-mail to 
To switch to the INDEX mode, E-mail to 
Send administrative queries to  


##########################################################
To: undisclosed-recipients:;

CEA/DASE/Laboratoire de Geophysique
CPPT - Centre Polynesien de Prevention des Tsunamis
Message issued on 2012-12-07 at 09:03:21 GMT
An earthquake occured 45 minutes ago

Source parameters obtained from SEISCOMP3 process

  Region           :  Off East Coast of Honshu, Japan
  Origin time      :  2012-12-07 08:18:21
  Latitude         :  +38.00
  Longitude        : +143.99
  Depth            :  +10 km
  Magnitude      M :    7.5 (79 stations)

Source parameters obtained from SYS_AL process

  Magnitude Mm     :   Mw: 7.2,   M0: 8.2e+19 N.m,  Mm: 6.9 ( 22 stations) 

  SLOWNESS (THETA) :   -4.5 (21 stations) 

  Inversion        :   Mw: 7.0,   M0: 4.4e+19 N.m,  Mm: 6.6 ( 32 stations)
                       NP1     :  179,   62,   47
                       NP2     :   62,   49,  142
                       Depth   :  +15 km
                       Misfit  :   41 %
                       Score P :  100 % ( 94 stations) (Matching P wave first motion [-100%(wrong);100%(perfect)])

                                        
           -------+++++++++++           
        ---------+++++++++++++++        
      ----------++++++++++++++++++      
    -----------+++++++++++++++++++++    
   -----------+++++++++++++++++++++++   
  ------------+++++++++++++++++++++++-  
 -------------+++++++++++++++++++++++-- 
 ------------+++++++++++++++++++++++--- 
 ------------++++++++++++++++++++++---- 
 ------------++++++++++++++++++++------ 
 -------------++++++++++++++++++------- 
 -------------+++++++++++++++---------- 
  ------------+++++++++++++-----------  
   ------------++++++++--------------   
    ++++-------+--------------------    
      ++++++++++------------------      
        +++++++++---------------        
           +++++++-----------           
                                        

Note: these results are currently evaluated by fully automated process.
Users should be advised to use and interpret these products with caution.



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

12/12/07 08:18:23.82

Epicenter:  37.876  144.052
MW 7.3

USGS MOMENT TENSOR SOLUTION
Depth  42         No. of sta:112
Moment Tensor;   Scale 10**19 Nm
  Mrr= 8.53       Mtt= 0.28
  Mpp=-8.81       Mrt= 2.33
  Mrp=-3.26       Mtp=-1.36
 Principal axes:
  T  Val=  9.80  Plg=71  Azm= 36
  N       -0.31      16      183
  P       -9.49       9      276

Best Double Couple:Mo=9.7*10**19
 NP1:Strike= 24 Dip=38 Slip= 116
 NP2:       172     56        71


##########################################################