2008 National Seismic Hazard Maps-Fault parameters
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Fault Name State
Strawberry Point fault Washington
GEOMETRY
Dip (degrees) 90
Dip direction V
Sense of slip strike slip
Rupture top (km) 0
Rupture bottom (km) 15
Rake (degrees) 0
Length (km) 26
MODEL VALUES
Probability of activity 1
Minimum magnitude 6.5
Maximum magnitude 6.73
b-value 0.8
Assigned Dip Fault-Parallel Slip Rate Width Annual Rate a-value
90 0.25 15.0 2.11e-04 1.486
Comments
This slip rate is the minimum vertical uplift rate determined by Johnson and others (2001) from onshore subsurface data. This slip rate does not include possible strike-slip motion that cannot be identified from vertical offset data.