2008 National Seismic Hazard Maps-Fault parameters
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Fault Name State
Toiyabe Range fault zone Nevada
GEOMETRY
Dip (degrees) 50/40/60
Dip direction E
Sense of slip normal
Rupture top (km) 0
Rupture bottom (km) 15
Rake (degrees) -90
Length (km) 127
MODEL VALUES
Probability of activity 1
Minimum magnitude n/a
Maximum magnitude n/a
b-value n/a
Assigned Dip Fault-Parallel Slip Rate Width Annual Rate a-value Branch Weight
40 0.34 23.3 n/a 0.2
50 0.29 19.6 n/a 0.6
60 0.25 17.3 n/a 0.2
Comments
The slip rate used in 1996 was based on dePolo (1996, written commun.). The slip rate used here is from dePolo (1998) and dePolo and Anderson (2000) and is based on observed offset of 43.4 m and inferred age of an offset deposit of 200 ka. The characteristic magnitude for this fault is fixed at M7.5 even though the length of the fault would permit a larger earthquake.