2008 National Seismic Hazard Maps - Fault Parameters

2007 National Seismic Hazard Maps-Fault parameters
New Search
Fault Name State
Antelope Valley Nevada
MODEL VALUES
Slip rate (vertical or horizontal in mm/yr) 0.8
Probability of activity 1
 ELLSWORTH HANKS
Minimum magnitude 6.5 6.5
Maximum magnitude 6.99 6.81
FAULT GEOMETRY
Dip (degrees) 50/60/40
Dip direction E
Sense of slip normal
Rupture top (km) 0
Rupture bottom (km) 15
Rake (degrees) -90
Length (km) 41
Assigned Dip Fault Parallel Slip Rate Width Characteristic Magnitude Characteristic Rate Weight
40 1.24 23.3 6.95 1.20E-03 0.2
50 1.04 19.6 6.95 8.46E-04 0.6
60 0.92 17.3 6.95 6.62E-04 0.2
Comments
Preferred vertical slip rate from dePolo (1998 #2845) and dePolo and Anderson (2000 #4471) based on an data presented by Bryant (1984 #2883). Bryant (1984 #2883) reports Holocene deposits offset up to 5.8 m; dePolo (1998 #2845) and dePolo and Anderson (2000 #4471) assumed an age of 4-12 ka (with a mean age of 8 ka) for the deposit. Dip of fault changed to 50° based on redefined regional default value (Lund, 2006).
Selected References
Machette, M.N., Personius, S.F., Kelson, K.I., Haller, K.M., and Dart, R.L., 1998, Map and data for Quaternary faults and folds in New Mexico: U.S. Geological Survey Open-File Report 98-521, 443 p., 1 pl., scale 1:750,000.
Bryant, W.A., 1984, Evidence of recent faulting along the Antelope Valley fault zone, Mono County, California: California Division of Mines and Geology, Open-File Report 84-56, scale 1:48,000.
dePolo, C.M., and Anderson, J.G., 2000, Estimating the slip rates of normal faults in the Great Basin, USA: Basin Research, v. 12, p. 227-240.
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.