Holocene Slip Rate of the Wasatch Fault Zone, Utah, from Geodetic Data: Earthquake Cycle Effects

Authors

Rocco Malservisi, University of MiamiFollow
Timothy H. Dixon, University of MiamiFollow
Peter C. LaFemina, University of Miami
Kevin P. Furlong, University of Miami

Document Type

Article

Publication Date

7-2003

Digital Object Identifier (DOI)

https://doi.org/10.1029/2003GL017408

Abstract

GPS data define a broad zone of present day deformation in the eastern Basin and Range province, western US. Using finite element models with elastic upper crust over viscoelastic lower crust/upper mantle and incorporating earthquake cycle effects, we show that these data are consistent with a model whereby most contemporary fault slip is focused on the Wasatch fault zone. Modeled rates of horizontal extension are 3.0–4.5 mm/yr, in agreement with Holocene geologic data. The models are non-unique, in part because much of the Wasatch fault is in the late stages of the earthquake cycle, when surface velocity gradients across the fault are low.

Rights Information

Terms of use for work posted in Scholar Commons.

Was this content written or created while at USF?

No

Citation / Publisher Attribution

Geophysical Research Letters, v. 30, issue 13, art. 1673

Copyright 2003 by the American Geophysical Union.

Scholar Commons Citation

Malservisi, Rocco; Dixon, Timothy H.; LaFemina, Peter C.; and Furlong, Kevin P., "Holocene Slip Rate of the Wasatch Fault Zone, Utah, from Geodetic Data: Earthquake Cycle Effects" (2003). School of Geosciences Faculty and Staff Publications. 464.
https://digitalcommons.usf.edu/geo_facpub/464