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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.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Growth of a tectonic ridge during the Landers earthquake
Series title:
Geology
Volume
25
Issue:
4
Year Published:
1997
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Geology
First page:
323
Last page:
326
Number of Pages:
4