Growth of a tectonic ridge during the Landers earthquake
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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.
Suggested Citation
Fleming, R.W., Johnson, A., 1997, Growth of a tectonic ridge during the Landers earthquake: Geology, v. 25, no. 4, p. 323-326, https://doi.org/10.1130/0091-7613(1997)025<0323:GOATRD>2.3.CO;2.
| 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 |