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Earthquake Hazards Program

Harvard Moment Tensor Solution

Magnitude 6.0 NEAR THE SOUTH COAST OF HONSHU, JAPAN
Saturday, July 23, 2005 at 07:34:57 UTC

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


July 23, 2005, NEAR S. COAST OF HONSHU, JAPAN, MW=6.0

Natasha Maternovskaya

CENTROID, MOMENT TENSOR SOLUTION
HARVARD EVENT-FILE NAME C072305B
DATA USED: GSN
L.P. BODY WAVES: 77S,183C, T= 40
SURFACE WAVES:   79S,191C, T= 50
CENTROID LOCATION:
ORIGIN TIME       07:35: 1.0 0.1
LAT 35.55N 0.01;LON 140.35E 0.01
DEP  62.7 0.6;HALF-DURATION  2.3
MOMENT TENSOR; SCALE 10**25 D-CM
  MRR= 0.93 0.01; MTT= 0.14 0.01
  MPP=-1.07 0.01; MRT= 0.05 0.01
  MRP= 0.38 0.01; MTP=-0.02 0.01
 PRINCIPAL AXES:
 1.(T) VAL=  1.00;PLG=79;AZM=286
 2.(N)       0.14;     3;    182
 3.(P)      -1.14;    10;     91
BEST DOUBLE COUPLE:M0=1.1*10**25
 NP1:STRIKE=178;DIP=35;SLIP=  86
 NP2:STRIKE=  4;DIP=55;SLIP=  93

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