|
|
 |
|||||||||||||||||
|
|||||||||||||||||
 |
|||||||||||||||||
| JOURNAL HOME | HELP | CONTACT PUBLISHER | SUBSCRIBE | ARCHIVE | SEARCH | TABLE OF CONTENTS |
Article |
P.O. Box 140
Twain, California 95984
galehouse{at}snowcrest.net
(J.S.G.)
U.S. Geological Survey 977
Menlo Park, California 94025
jlienk{at}usgs.gov
(J.J.L.)
Manuscript received 6 November 2002.
We summarize over 20 years of monitoring surface creep on faults of the San Andreas system in the San Francisco Bay region using alinement arrays. The San Andreas fault is fully locked at five sites northwest from San Juan Bautista, the southern end of the 1906 earthquake rupture, that is, no creep (<1 mm/yr) is observed. Likewise, the San Gregorio, Rodgers Creek, and West Napa faults show no creep. The measured creep rate on the Calaveras-Paicines fault from Hollister southward is either 6 or 
10 mm/yr, depending on whether the arrays cross all of the creeping traces. Northward of Hollister, the central Calaveras creep rate reaches 14 ± 2 mm/yr but drops to 2 mm/yr near Calaveras Reservoir, where slip transfers to the southern Hayward fault at a maximum creep rate of 9 mm/yr at its south end. However, the Hayward fault averages only 4.6 mm/yr over most of its length. The Northern Calaveras fault, now creeping at 3-4 mm/yr, steps right to the Concord fault, which has a similar rate, 2.5-3.5 mm/yr, which is slightly slower than the 4.4 mm/yr rate on its northward continuation, the Green Valley fault. The Maacama fault creeps at 4.4 mm/yr near Ukiah and 6.5 mm/yr in Willits. The central and southern segments of the Calaveras fault are predominantly creeping, whereas the Hayward, Northern Calaveras, and Maacama faults are partly locked and, along with the Rodgers Creek and San Andreas, have high potential for major earthquakes.
This article has been cited by other articles:
|
|
 |
|
  J. R. Murray-Moraleda and R. W. Simpson Geodetically Inferred Coseismic and Postseismic Slip due to the M 5.4 31 October 2007 Alum Rock Earthquake Bulletin of the Seismological Society of America, October 1, 2009; 99(5): 2784 - 2800. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. C. Templeton, R. M. Nadeau, and R. Burgmann Behavior of Repeating Earthquake Sequences in Central California and the Implications for Subsurface Fault Creep Bulletin of the Seismological Society of America, February 1, 2008; 98(1): 52 - 65. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 S. M. Cashman, J. N. Baldwin, K. V. Cashman, K. Swanson, and R. Crawford Microstructures developed by coseismic and aseismic faulting in near-surface sediments, San Andreas fault, California Geology, July 1, 2007; 35(7): 611 - 614. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. J. Lienkaemper, B. Baker, and F. S. McFarland Surface Slip Associated with the 2004 Parkfield, California, Earthquake Measured on Alinement Arrays Bulletin of the Seismological Society of America, September 1, 2006; 96(4B): S239 - S249. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. J. Titus, C. DeMets, and B. Tikoff Thirty-Five-Year Creep Rates for the Creeping Segment of the San Andreas Fault and the Effects of the 2004 Parkfield Earthquake: Constraints from Alignment Arrays, Continuous Global Positioning System, and Creepmeters Bulletin of the Seismological Society of America, September 1, 2006; 96(4B): S250 - S268. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. J. Wilkins and R. A. Schultz 3D Cohesive End-Zone Model for Source Scaling of Strike-Slip Interplate Earthquakes Bulletin of the Seismological Society of America, December 1, 2005; 95(6): 2232 - 2258. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 R. Bilham, N. Suszek, and S. Pinkney California Creepmeters Seismological Research Letters, July 1, 2004; 75(4): 481 - 492. [Full Text] [PDF]
|
|
| JOURNAL HOME | HELP | CONTACT PUBLISHER | SUBSCRIBE | ARCHIVE | SEARCH | TABLE OF CONTENTS |
