2008 National Seismic Hazard Maps-Fault parameters
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Fault Name State
Smith Valley fault Nevada
GEOMETRY
Dip (degrees) 60/50/40
Dip direction E
Sense of slip normal
Rupture top (km) 0
Rupture bottom (km) 15
Rake (degrees) -90
Length (km) 94
MODEL VALUES
Probability of activity 1
Minimum magnitude 6.5
Maximum magnitude 7.37
b-value 0.8
Assigned Dip Fault-Parallel Slip Rate Width Annual Rate a-value Branch Weight
40 0.59 23.3 3.06e-04 1.749 0.2
50 0.50 19.6 2.16e-04 1.597 0.6
60 0.44 17.3 1.69e-04 1.490 0.2
Comments
The assigned slip rate is based on work by Hayes (1985). He reported an estimated slip rate of 0.36-0.41 mm/yr for the Smith Valley fault zone in the vicinity of Nevada Hot Springs for the past 18 k.y.