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Summary of controlling seismic events

Summary of controlling seismic events: seismic stability evaluation of Anderson Dam, Santa Clara County, Caliornia

Notes
1 PGA (peak ground acceleration at bedrock) and spectral accelerations (SA) were computed using all five NGA attenuation relationships.
2 The Range Front fault (i.e. the southern continuation of the Coyote Creek fault) is considered non-seismogenic. Fault Type: RV = Reverse, SS = Strike slip
HW: Yes = on hanging wall. No = on foot wall
Rmap = map distance
Rjb = Joyner-Boore Distance
Rrup = fault rupture distance

Fault Fault parameters Distance (km) Average PGA1 Average SA at 0.2 sec1 Average SA at 1.0 sec1 Arias intensity (m/sec)
Type Mmax HW rmap rjb rrup PGAmed PGA84th 0.2med 0.284th 1.0med 1.084th Travasarou et al 2003 Watson-Lamprey 2007
AImed AI84th AImed AI84th
Coyote Creek2 RV 6.6 Yes 0.0 0.0 0.0 0.66 1.14 1.49 2.74 0.49 0.94 2.49 7.24 2.29 3.22
Calaveras SS 7.25 No 2.0 2.0 2.0 0.50 0.85 1.15 2.07 0.44 0.84 2.95 8.45 2.66 3.73
San Andreas SS 7.9 No 20.6 20.6 20.6 0.22 0.37 0.47 0.85 0.21 0.40 1.09 3.08 0.91 1.28