Strain accumulation north of Los Angeles, California, as a function of time, 1977–1992

Geophysical Research Letters
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Abstract

No significant change in the rate of strain accumulation in a 40×120 km trilateration network spanning the San Gabriel mountains was observed from 1977.5 to 1991.8 despite an apparent increase in seismicity (ML > 4.5) beginning in late 1987 in the northern Los Angeles basin immediately to the south. The observed deformation (0.13±0.01 µstrain/yr right‐lateral shear across a vertical plane striking N63°W±1°) can be attributed to strain accumulation on the San Andreas fault (local strike N65°W). No significant accumulation of compression normal to the strike of the San Andreas fault was observed in the network as a whole.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Strain accumulation north of Los Angeles, California, as a function of time, 1977–1992
Series title Geophysical Research Letters
DOI 10.1029/94GL01123
Volume 21
Issue 12
Year Published 1994
Language English
Publisher American Geophysical Union
Contributing office(s) Earthquake Science Center, Volcano Hazards Program
Description 4 p.
First page 1173
Last page 1176
Country United States
State California
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