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Earthquake Hazards Program

Harvard Moment Tensor Solution

Magnitude 6.4 CENTRAL IRAN
Tuesday, February 22, 2005 at 02:25:22 UTC

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


February 22, 2005, CENTRAL IRAN, MW=6.4

Natasha Maternovskaya

CENTROID, MOMENT TENSOR SOLUTION
HARVARD EVENT-FILE NAME C022205A
DATA USED: GSN
L.P. BODY WAVES: 57S,148C, T= 40
MANTLE WAVES:    52S,108C, T=125
CENTROID LOCATION:
ORIGIN TIME       02:25:31.3 0.1
LAT 30.76N 0.01;LON  56.90E 0.01
DEP  24.4 0.6;HALF-DURATION  3.9
MOMENT TENSOR; SCALE 10**25 D-CM
  MRR= 4.44 0.04; MTT=-5.08 0.04
  MPP= 0.64 0.04; MRT=-1.00 0.10
  MRP= 0.10 0.09; MTP=-1.50 0.04
 PRINCIPAL AXES:
 1.(T) VAL=  4.56;PLG=82;AZM=211
 2.(N)       0.98;     5;     77
 3.(P)      -5.54;     5;    346
BEST DOUBLE COUPLE:M0=5.1*10**25
 NP1:STRIKE= 70;DIP=40;SLIP=  82
 NP2:STRIKE=261;DIP=51;SLIP=  97

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

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