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Earthquake Hazards Program

Magnitude 6.9 TONGA

Sunday, October 19, 2008 at 05:10:33 UTC

Global CMT Project Moment Tensor Solution


October 19, 2008, TONGA, MW=6.9

Goran Ekstrom
Meredith Nettles

CENTROID-MOMENT-TENSOR  SOLUTION
GCMT EVENT:     C200810190510A  
DATA: II IU CU IC G  GE 
L.P.BODY WAVES:116S, 304C, T= 50
MANTLE WAVES:  112S, 268C, T=125
SURFACE WAVES: 112S, 282C, T= 50
TIMESTAMP:      Q-20081019092343
CENTROID LOCATION:
ORIGIN TIME:      05:10:41.2 0.0
LAT:21.80S 0.00;LON:173.57W 0.00
DEP: 43.8  0.1;TRIANG HDUR:  6.9
MOMENT TENSOR: SCALE 10**26 D-CM
RR= 2.650 0.011; TT=-0.022 0.008
PP=-2.630 0.008; RT= 0.292 0.010
RP= 0.068 0.010; TP=-0.866 0.006
PRINCIPAL AXES:
1.(T) VAL=  2.682;PLG=84;AZM=  3
2.(N)       0.212;     6;    197
3.(P)      -2.895;     2;    107
BEST DBLE.COUPLE:M0= 2.79*10**26
NP1: STRIKE=191;DIP=44;SLIP=  81
NP2: STRIKE= 23;DIP=47;SLIP=  98

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

Global CMT Project Catalog Search

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver


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