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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.
Brocher, T.M., Boatwright, J., Lienkaemper, J.J., Prentice, C.S., Schwartz, D.P., and Bundock, H.P., 2018, The Hayward Fault—Is it due for a repeat of the powerful 1868 earthquake?: U.S. Geological Survey Fact Sheet 2018–3052, 4 p., https://doi.org/10.3133/fs20183052.
ISSN: 2327-6932 (online)
Additional publication details
|Publication Subtype||USGS Numbered Series|
|Title||The Hayward Fault—Is it due for a repeat of the powerful 1868 earthquake?|
|Series title||Fact Sheet|
|Publisher||U.S. Geological Survey|
|Publisher location||Reston, VA|
|Contributing office(s)||Earthquake Science Center|
|Other Geospatial||Hayward Fault|