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Earthquake Hazards Program

Magnitude 5.2 ILLINOIS

Friday, April 18, 2008 at 09:37:00 UTC

Global CMT Project Moment Tensor Solution


April 18, 2008, ILLINOIS, MW=5.3

Goran Ekstrom

CENTROID-MOMENT-TENSOR  SOLUTION
GCMT EVENT:     C200804180936A  
DATA: II IU MN CU IC G  GE 
L.P.BODY WAVES: 74S, 119C, T= 40
SURFACE WAVES: 103S, 186C, T= 50
TIMESTAMP:      Q-20080418094937
CENTROID LOCATION:
ORIGIN TIME:      09:37:02.2 0.1
LAT:38.55N 0.01;LON: 87.91W 0.01
DEP: 15.0  FIX;TRIANG HDUR:  1.2
MOMENT TENSOR: SCALE 10**24 D-CM
RR=-0.011 0.021; TT= 0.983 0.019
PP=-0.972 0.021; RT= 0.067 0.057
RP=-0.154 0.062; TP= 0.736 0.017
PRINCIPAL AXES:
1.(T) VAL=  1.229;PLG= 1;AZM=342
2.(N)       0.012;    82;     77
3.(P)      -1.241;     8;    251
BEST DBLE.COUPLE:M0= 1.24*10**24
NP1: STRIKE= 27;DIP=84;SLIP=-175
NP2: STRIKE=296;DIP=85;SLIP=  -6

            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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