HR: 1340h
AN: G13A-0927    [Abstracts]
TI: An examination of using gravity as a proxy for strain accumulation in complex fault systems
AU: * Hayes, T
EM: thayes@uwo.ca
AF: The University of Western Ontario, 1151 Richmond St. B&GS Bldg., Room 154, London, ON N6A 5L9, Canada
AU: Tiampo, K
EM: ktiampo@uwo.ca
AF: The University of Western Ontario, 1151 Richmond St. B&GS Bldg., Room 154, London, ON N6A 5L9, Canada
AU: Rundle, J
EM: jbrundle@ucdavis.edu
AF: University of California, Davis, One Shields Ave., Davis, CA 95616, United States
AB: The gravity signal contains information regarding changes in density at all depths and here we investigate its use as a proxy for strain accumulation in complex fault networks. Using a complex, strike slip fault system, such as the San Andreas Fault (SAF) network, and the seismicity modeled by Virtual California, we examine the rates of dilatational highs and lows for fault segment that initiate in a prescribed time period. The dilatational gravity signals are employed as they are well within in the range of portable instrumentation, and have the effects of topography removed; thus ensuring that we examine only those changes from density perturbations at depth.
DE: 1209 Tectonic deformation (6924)
DE: 1217 Time variable gravity (7223, 7230)
DE: 1242 Seismic cycle related deformations (6924, 7209, 7223, 7230)
SC: Geodesy [G]
MN: 2007 Fall Meeting