2008 National Seismic Hazard Maps-Fault parameters
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Fault Name State
Sierra Madre (San Fernando) California
GEOMETRY
Dip (degrees) 45
Dip direction N
Sense of slip thrust
Rupture top (km) 0
Rupture bottom (km) 13
Rake (degrees) 90
Length (km) 18
MODEL VALUES
Slip Rate 2
Probability of activity 1
  ELLSWORTH HANKS
Minimum magnitude 6.5 6.5
Maximum magnitude 6.70 6.50
b-value 0.8 0.8
Fault Model Deformation
Model
Char Rate1 GR-a-value1 Weight
UnStitched 2.1 1.43e-03 / 2.85e-03 2.282 / NA 0.50
UnStitched 2.4 1.43e-03 / 2.85e-03 2.282 / NA 0.50
1 1st Value is based on Ellsworth relation and 2nd value is based on Hanks and Bakun relation
Comments
Dip-slip rate is combination of rate reported by Clark and others (1984) and estimate by authors for the Dunsmore alluvial fan (of age 2-10 ka) reported in Crook and others (1987).