Growth of a tectonic ridge during the Landers earthquake
Geology
By: R. W. Fleming and A. M. Johnson
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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 |