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.
Study Area
| 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 |
| Publication Date | December 07, 2012 |
| 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 |