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Aseismic uplift in Southern California

Science

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, , and
https://doi.org/10.1126/science.192.4236.251

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Abstract

Preliminary examination of the historic geodetic record has disclosed crustal uplift of 0.15 to 0.25 meter that apparently began around 1960 and has since grown to include at least 12,000 square kilometers of southern California. This uplift extends at least 150 kilometers west-northwestward along the San Andreas Fault from Cajon to Maricopa, southward from the San Andreas into the northern Transverse Ranges, and eastward from Lebec into and including much of western Mojave block. It seems to have grown spasmodically eastward from a center near the junction of the San Andreas and Garlock faults and has occurred largely within an area that has remained virtually aseismic since at least 1932. Although much of this area has been characterized by crustal mobility since at least the turn the century, the described uplift seems to be an unusually large and probably unique event superimposed the existing pattern of continuing deformation.

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Additional publication details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Aseismic uplift in Southern California
Series title:
Science
DOI:
10.1126/science.192.4236.251
Volume:
192
Issue:
4236
Year Published:
1976
Language:
English
Publisher:
American Association for the Advancement of Science
Description:
3 P.
First page:
251
Last page:
253
Country:
United States
State:
California