Evidence for large earthquakes in metropolitan Los Angeles

Authors

Charles M. Rubin, Central Washington University
Scott C. Lindvall, William Lettis and Associates, Valencia, CA
Thomas K. Rockwell, San Diego State University

Document Type

Article

Department or Administrative Unit

Geological Sciences

Publication Date

7-17-1998

Abstract

The Sierra Madre fault, along the southern flank of the San Gabriel Mountains in the Los Angeles region, has failed in magnitude 7.2 to 7.6 events at least twice in the past 15,000 years. Restoration of slip on the fault indicated a minimum of about 4.0 meters of slip from the most recent earthquake and suggests a total cumulative slip of about 10.5 meters for the past two prehistoric earthquakes. Large surface displacements and strong ground motions resulting from greater than magnitude 7 earthquakes within the Los Angeles region are not yet considered in most seismic hazard and risk assessments.

Comments

This article was originally published in Science. The full-text article from the publisher can be found here.

Due to copyright restrictions, this article is not available for free download from ScholarWorks @ CWU.

Recommended Citation

Rubin, C. M., Lindvall, S. C., & Rockwell, S. C. (1998). Evidence for Large Earthquakes in Metropolitan Los Angeles. Science, 281(5375), 398–402. https://doi.org/10.1126/science.281.5375.398

Journal

Science

Rights

Copyright © 1998 The Authors