Holocene slip rate of the Wasatch fault zone, Utah, from geodetic data: Earthquake cycle effects

Rocco Malservisi, Timothy H. Dixon, Peter C. La Femina, Kevin P. Furlong

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)6-1 - 6-4
JournalGeophysical Research Letters
Volume30
Issue number13
DOIs
StatePublished - Jul 1 2003

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Earth and Planetary Sciences(all)

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