2008 National Seismic Hazard Maps

2008 National Seismic Hazard Maps-Fault parameters

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Fault Name	State
Bare Mountain fault	Nevada

GEOMETRY
Dip (degrees)	40/50/60
Dip direction	E
Sense of slip	normal
Rupture top (km)	0
Rupture bottom (km)	15
Rake (degrees)	-90
Length (km)	19

MODEL VALUES
Probability of activity	1
Minimum magnitude	6.5
Maximum magnitude	6.57
b-value	0.8

Assigned Dip	Fault-Parallel Slip Rate	Width	Annual Rate	a-value	Branch Weight
40	0.01	23.3	2.09e-05	0.600	0.2
50	0.01	19.6	1.47e-05	0.448	0.6
60	0.01	17.3	1.15e-05	0.341	0.2

Comments
Anderson and Klinger (1996) cite the above slip rate based on trenching at one site and reconnaissance of the rest of the fault. Dip of fault changed to 50? based on redefined regional default value (Lund, 2006).

Selected References
Anderson, L.W., and Klinger, R.E., 1996, Evaluation and characterization of Quaternary faulting-Bare Mountain fault, Nye County, Nevada: U.S. Bureau of Reclamation Seismotectonic Report 96-5, 77 p., 4 pls. Lund, W.R., ed., 2006, Basin and Range Province Earthquake Working Group seismic-hazard recommendations to the U.S. Geological Survey National Seismic Hazard Mapping Program: Utah Geological Survey Open-File Report 477, 23 p, ugspub.nr.utah.gov/publications/open_file_reports/OFR-477.pdf.

Selected References

Anderson, L.W., and Klinger, R.E., 1996, Evaluation and characterization of Quaternary faulting-Bare Mountain fault, Nye County, Nevada: U.S. Bureau of Reclamation Seismotectonic Report 96-5, 77 p., 4 pls.
Lund, W.R., ed., 2006, Basin and Range Province Earthquake Working Group seismic-hazard recommendations to the U.S. Geological Survey National Seismic Hazard Mapping Program: Utah Geological Survey Open-File Report 477, 23 p, ugspub.nr.utah.gov/publications/open_file_reports/OFR-477.pdf.