Growth of a tectonic ridge during the Landers earthquake

Geology
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Abstract

The formation of tectonic ridges by localized vertical uplift along strike-slip faults has long been suspected, but the actual growth of a tectonic ridge during an earthquake has never been documented. During the 1992 Landers, California, earthquake sequence, an awl-shaped, dome-like topographic ridge along the Emerson fault zone increased its height at least 1 m concurrently with 3 m of right-lateral shift across the fault zone containing the ridge. Five deformation vectors within the ridge reveal dilatant behavior in addition to the uplift and shift on boundary faults.

Publication type Article
Publication Subtype Journal Article
Title Growth of a tectonic ridge during the Landers earthquake
Series title Geology
DOI 10.1130/0091-7613(1997)025<0323:GOATRD>2.3.CO;2
Volume 25
Issue 4
Year Published 1997
Language English
Publisher Geological Society of America
Description 4 p.
First page 323
Last page 326
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