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Earthquake Hazards Program

Magnitude 4.5 WESTERN MONTANA

Tuesday, May 08, 2007 at 15:46:49 UTC

Global CMT Project Moment Tensor Solution


May 8, 2007, WESTERN MONTANA, MW=4.5

Meredith Nettles
Goran Ekstrom

CENTROID-MOMENT-TENSOR  SOLUTION
GCMT EVENT:     S200705081546A  
DATA: IU II IC US 
SURFACE WAVES:  49S,  57C, T= 40
TIMESTAMP:      Q-20070510212813
CENTROID LOCATION:
ORIGIN TIME:      15:46:50.8 0.4
LAT:45.43N 0.05;LON:112.06W 0.04
DEP: 12.0  FIX;TRIANG HDUR:  0.4
MOMENT TENSOR: SCALE 10**22 D-CM
RR=-6.720 0.274; TT= 0.506 0.311
PP= 6.220 0.254; RT=-0.991 1.550
RP=-2.400 1.470; TP=-2.120 0.269
PRINCIPAL AXES:
1.(T) VAL=  7.207;PLG= 8;AZM= 74
2.(N)       0.189;    13;    165
3.(P)      -7.389;    75;    311
BEST DBLE.COUPLE:M0= 7.30*10**22
NP1: STRIKE=149;DIP=38;SLIP=-111
NP2: STRIKE=355;DIP=55;SLIP= -74

            -----######           
        #----------########       
      ##-------------########     
    ###---------------#########   
   ###-----------------#########  
  ####-----------------########   
  ####--------   -------####### 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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