Title

Paleoseismology and Global Positioning System: Earthquake-Cycle Effects and Gversus Geologic Fault Slip Rates in the Eastern California Shear Zone

Document Type

Article

Publication Date

2003

Digital Object Identifier (DOI)

http://dx.doi.org/10.1130/0091-7613(2003)​031<0055:PAGPSE>​2.0.CO;2

Abstract

Published slip rates for the Owens Valley fault zone in eastern California based on geodetic data and elastic half-space models (5–7 mm/yr) are faster than longer term geologic rates (2–3 mm/yr). We use Global Positioning System data spanning the central Owens Valley, a more realistic rheological model with an elastic upper crust over a viscoelastic lower crust and upper mantle, and paleoseismic data from adjacent faults, to show that this difference could reflect earthquake-cycle effects. We estimate a long-term rate (2.1 ± 0.7 mm/yr) and earthquake recurrence interval (2750 +350/−1000 yr) from the geodetic data, both in agreement with independent geologic estimates.

Was this content written or created while at USF?

No

Citation / Publisher Attribution

Geology, v. 31, issue 1, p. 55-58

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