Paleoseismology of Utah, Volume 9: Paleoseismic investigation of the Clarkston, Junction Hills, and Wellsville faults, West Cache fault zone, Cache County, Utah (SS-98)

By: B. D. Black, R. E. Giraud, and B. H. Mayes

This Utah Geological Survey Special Study, Paleoseismic Investigation of the Clarkston, Junction Hills, and Wellsville faults, West Cache fault zone, Cache County, Utah, is the ninth report in the Paleoseismology of Utah Special Studies series. This series makes the results of paleoseismic investigations in Utah available to geoscientists, engineers, planners, public officials, and the general public. These studies provide critical information on earthquake timing, recurrence, displacement, slip rate, and fault geometry which can be used to characterize potential seismic sources and evaluate the long-term earthquake hazard presented by Utah's Quaternary faults.

Field work for this paleoseismic investigation was performed in 1997 at three sites (Winter Canyon, Roundy Farm, and Deep Canyon) on the Clarkston, Junction Hills, and Wellsville faults. These faults, along with several lesser associated faults nearby, comprise the West Cache fault zone on the west side of Cache Valley. No previous paleoseismic studies had been conducted on these faults. The information reported here on the size, timing, and recurrence of surface-faulting earthquakes on the West Cache fault zone is critical to public officials, planners, and others making decisions regarding earthquake-hazard mitigation in Cache Valley and the northern Wasatch front.

Other Information:

Published: 2000
Pages: 23 p.
Plates: 1 pl.
Location: Cache County
Media Type: Paper Publication