2008 National Seismic Hazard Maps-Fault parameters
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Fault Name State
Superstition Hills California
GEOMETRY
Dip (degrees) 90
Dip direction V
Sense of slip strike slip
Rupture top (km) 0.6
Rupture bottom (km) 12
Rake (degrees) 180
Length (km) 36
MODEL VALUES
Slip Rate 4
Probability of activity 1
Aseismic slip factor 0.1
  ELLSWORTH HANKS
Minimum magnitude 6.5 6.5
Maximum magnitude 6.80 6.60
b-value 0.8 0.8
Fault Model Deformation
Model
Char Rate1 GR-a-value1 Weight
Stitched 2.1 2.49e-03 / 4.97e-03 2.461 / 3.012 0.50
UnStitched 2.1 2.49e-03 / 4.97e-03 2.461 / 3.012 0.50
Stitched 2.4 2.49e-03 / 4.97e-03 2.461 / 3.012 0.50
UnStitched 2.4 2.49e-03 / 4.97e-03 2.461 / 3.012 0.50
1 1st Value is based on Ellsworth relation and 2nd value is based on Hanks and Bakun relation
Comments
Slip rate reported by WGCEP (1995). Aseismic slip factor of 0.1 applied due to documented triggered slip and afterslip (Kahle and others, 1988).