2008 National Seismic Hazard Maps

2008 National Seismic Hazard Maps-Fault parameters

New Search

Fault Name	State
Shoshone Range fault zone	Nevada

GEOMETRY
Dip (degrees)	50/60/40
Dip direction	W
Sense of slip	normal
Rupture top (km)	0
Rupture bottom (km)	15
Rake (degrees)	-90
Length (km)	121

MODEL VALUES
Probability of activity	1
Minimum magnitude	6.5
Maximum magnitude	7.50
b-value	0.8

Assigned Dip	Fault-Parallel Slip Rate	Width	Annual Rate	a-value	Branch Weight
40	0.16	23.3	6.63e-05	1.223	0.2
50	0.13	19.6	4.67e-05	1.071	0.6
60	0.12	17.3	3.65e-05	0.964	0.2

Comments
This fault was included in 1996 based on preliminary data from dePolo (1996, written commun.). The slip rate subsequently assigned by dePolo (1998) was 0.335 mm/yr based on an empirical relationship between height of basal fault facets and slip rate. For consistency with the way other 1996 slip rates were treated, this fault is assigned a slip rate of 0.1 mm/yr in the absence of any other data. The characteristic magnitude for this fault is fixed at M7.5 even though the length of the fault would permit a larger earthquake.

Comments

This fault was included in 1996 based on preliminary data from dePolo (1996, written commun.). The slip rate subsequently assigned by dePolo (1998) was 0.335 mm/yr based on an empirical relationship between height of basal fault facets and slip rate. For consistency with the way other 1996 slip rates were treated, this fault is assigned a slip rate of 0.1 mm/yr in the absence of any other data. The characteristic magnitude for this fault is fixed at M7.5 even though the length of the fault would permit a larger earthquake.