2008 National Seismic Hazard Maps - Fault Parameters

2007 National Seismic Hazard Maps-Fault parameters
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Fault Name State
Beaver Creek fault zone Oregon
MODEL VALUES
Slip rate (vertical or horizontal in mm/yr) 0.2
Probability of activity 1
Minimum magnitude 6.5
Maximum magnitude 6.52
FAULT GEOMETRY
Dip (degrees) 50
Dip direction SE
Sense of slip normal
Rupture top (km) 0
Rupture bottom (km) 15
Rake (degrees) -90
Length (km) 17
Assigned Dip Fault Parallel Slip Rate Width Characteristic Magnitude Characteristic Rate Weight
50 0.26 19.6 6.52 3.96E-04 0.6
Comments
Assigned slip rate based on measured 40 m of offset across the less than or equal to 200 Indian Creek marine terrace surface (Kelsey, 1990). Dip of fault changed to 50° based on redefined regional default value (Lund, 2006).
Selected References
Kelsey, H.M., 1990, Late Quaternary deformation of marine terraces on the Cascadia subduction zone near Cape Blanco, Oregon: Tectonics, v. 9, no. 5, p. 983-1014.
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.