Skip to main content

Kinematics of shallow backthrusts in the Seattle fault zone, Washington State

Dates

Publication Date

Citation

Pratt, T.L., Troost, K.G., Stephenson, W., and Odum, J., 2015, Kinematics of shallow backthrusts in the Seattle fault zone, Washington State, Geosphere, v. 11, no. 6, p. 1948-1974. doi:10.1130/GES01179.1

Summary

Near-surface thrust fault splays and antithetic backthrusts at the tips of major thrust fault systems can distribute slip across multiple shallow fault strands, complicating earthquake hazard analyses based on studies of surface faulting. The shallow expression of the fault strands forming the Seattle fault zone of Washington State shows the structural relationships and interactions between such fault strands. Paleoseismic studies document an ∼7000 yr history of earthquakes on multiple faults within the Seattle fault zone, with some backthrusts inferred to rupture in small (M ∼5.5–6.0) earthquakes at times other than during earthquakes on the main thrust faults. We interpret seismic-reflection profiles to show three main thrust faults, [...]

Contacts

Attached Files

Thumbnail
Thumbnail

Tags

Categories
Publication
Types

Additional Information

Identifiers

Type Scheme Key
local-index unknown 70188386
local-pk unknown 70188386
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1130/GES01179.1
series unknown Geosphere

Citation Extension

citationTypeArticle
journalGeosphere
languageEnglish
parts
typevolume
value11
typeissue
value6

Item Actions

View Item as ...

Save Item as ...

View Item...