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The Hayward Fault— Is it due for a repeat of the powerful 1868 earthquake?

April 16, 2008

On October 21, 1868, a magnitude 6.8 earthquake struck the San Francisco Bay region. Although the region was then sparsely populated, this quake on the Hayward Fault was one of the most destructive in California's history. Recent studies show that such powerful Hayward Fault quakes have repeatedly jolted the region in the past. U.S. Geological Survey (USGS) scientists describe this fault as a tectonic time bomb, due anytime for another magnitude 6.8 to 7.0 earthquake. Because such a quake could cause hundreds of deaths, leave thousands homeless, and devastate the region's economy, the USGS and other organizations are working together with new urgency to help prepare Bay Area communities for this certain future quake.

Citation Information

Publication Year 2008
Title The Hayward Fault— Is it due for a repeat of the powerful 1868 earthquake?
DOI 10.3133/fs20083019
Authors Thomas M. Brocher, Jack Boatwright, James J. Lienkaemper, Carol S. Prentice, David P. Schwartz, Howard Bundock
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Fact Sheet
Series Number 2008-3019
Index ID fs20083019
Record Source USGS Publications Warehouse
USGS Organization Earthquake Hazards Program

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