Timing of Late Holocene Paleoearthquakes on the Northern San Andreas Fault at the Fort Ross Orchard Site, Sonoma County, California

2006 ◽  
Vol 96 (3) ◽  
pp. 1012-1028 ◽  
Author(s):  
K. I. Kelson
Keyword(s):  
Late Holocene ◽  
San Andreas Fault ◽  
San Andreas ◽  
Sonoma County

Late Holocene Rupture of the Northern San Andreas Fault and Possible Stress Linkage to the Cascadia Subduction Zone

2008 ◽  
Vol 98 (2) ◽  
pp. 861-889 ◽  
Author(s):  
C. Goldfinger ◽  
K. Grijalva ◽  
R. Burgmann ◽  
A. E. Morey ◽  
J. E. Johnson ◽  
...  
Keyword(s):  
Subduction Zone ◽  
Late Holocene ◽  
San Andreas Fault ◽  
Cascadia Subduction Zone ◽  
San Andreas

Late Holocene slip rate of the San Andreas fault and its accommodation by creep and moderate-magnitude earthquakes at Parkfield, California

Geology ◽  
2011 ◽  
Vol 39 (3) ◽  
pp. 243-246 ◽  
Author(s):  
Nathan A. Toké ◽  
J Ramón Arrowsmith ◽  
Michael J. Rymer ◽  
Angela Landgraf ◽  
David E. Haddad ◽  
...  
Keyword(s):  
Late Holocene ◽  
San Andreas Fault ◽  
Slip Rate ◽  
San Andreas ◽  
Moderate Magnitude

scholarly journals 1855 and 1991 surveys of the San Andreas fault: Implications for fault mechanics

1994 ◽  
Vol 84 (2) ◽  
pp. 241-246
Author(s):  
Lisa B. Grant ◽  
Andrea Donnellan
Keyword(s):  
Late Holocene ◽  
San Andreas Fault ◽  
Slip Rate ◽  
Large Earthquake ◽  
Fault Mechanics ◽  
Radiocarbon Dates ◽  
Apparent Slip ◽  
San Andreas ◽  
Main Fault ◽  
Fault Trace

Abstract Two monuments from an 1855 cadastral survey that span the San Andreas fault in the Carrizo Plain have been right-laterally displaced 11.0 ± 2.5 m by the 1857 Fort Tejon earthquake and associated seismicity and afterslip. This measurement confirms that at least 9.5 ± 0.5 m of slip occurred along the main fault trace, as suggested by measurements of offset channels near Wallace Creek. The slip varied by 2 to 3 m along a 2.6-km section of the main fault trace. Using radiocarbon dates of the penultimate large earthquake and measurements of slip from the 1857 earthquake, we calculate an apparent slip rate for the last complete earthquake cycle that is at least 25% lower than the late-Holocene slip rate on the main fault trace. Comparison of short-term broad-aperture strain accumulation rates with the narrow-aperture late-Holocene slip rate indicates that the fault behaves nearly elastically over a time scale of several earthquake cycles. Therefore, slip in future earthquakes should compensate the slip-rate deficit from the 1857 earthquake.

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