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Earthquake Hazards Program

Harvard Moment Tensor Solution

Magnitude 6.7 OFF THE COAST OF NORTHERN CALIFORNIA
Friday, June 17, 2005 at 06:21:42 UTC

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


June 17, 2005, OFF COAST OF NORTHERN CALIFORNIA, MW=6.6

Natasha Maternovskaya
Meredith Nettles

CENTROID, MOMENT TENSOR SOLUTION
HARVARD EVENT-FILE NAME C061705A
DATA USED: GSN
L.P. BODY WAVES: 77S,189C, T= 50
MANTLE WAVES:    75S,183C, T=125
CENTROID LOCATION:
ORIGIN TIME       06:21:45.5 0.1
LAT 40.70N 0.01;LON 126.80W 0.01
DEP  17.2 0.9;HALF-DURATION  5.1
MOMENT TENSOR; SCALE 10**26 D-CM
  MRR=-0.02 0.01; MTT=-0.73 0.01
  MPP= 0.75 0.01; MRT= 0.22 0.02
  MRP= 0.10 0.02; MTP=-0.77 0.01
 PRINCIPAL AXES:
 1.(T) VAL=  1.08;PLG= 0;AZM=247
 2.(N)       0.03;    77;    339
 3.(P)      -1.12;    13;    157
BEST DOUBLE COUPLE:M0=1.1*10**26
 NP1:STRIKE=293;DIP=81;SLIP=-171
 NP2:STRIKE=201;DIP=81;SLIP=  -9

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