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

August 28, 2018

On October 21, 1868, a magnitude 6.8 earthquake struck the San Francisco Bay area. Although the region was sparsely populated, the quake on the Hayward Fault was one of the most destructive in California’s history. U.S. Geological Survey (USGS) studies show that similar Hayward Fault quakes have repeatedly jolted the region in the past and that the fault may be ready to produce another magnitude 6.8 to 7.0 earthquake. Such an earthquake could unexpectedly change people’s lives and impact the Bay Area’s infrastructure and economy, but updated building codes and retrofits, as well as planning, community training, and preparedness, will help reduce the effects of a future Hayward Fault earthquake.

Citation Information

Publication Year 2018
Title The Hayward Fault—Is it due for a repeat of the powerful 1868 earthquake?
DOI 10.3133/fs20183052
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 2018-3052
Index ID fs20183052
Record Source USGS Publications Warehouse
USGS Organization Earthquake Science Center

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