Activities & Events
Forecasting California's Earthquakes
Press conference discussing the new earthquake probabilities for California. (includes video)
October 21, 2008
October 21, 2008 marked the 140th anniversary of the 1868 Hayward earthquake, which was the first great “San Francisco earthquake” and one of the most damaging earthquakes in the nation's history.
1868 Earthquake Stories
Share your stories related to the 1868 earthquake on the Alliance web site.
Why commemorate the 140th anniversary?
The average interval between the past five large earthquakes on the Hayward Fault is 140 years. With the 140th anniversary another large Hayward Fault earthquake can occur at any time. The 1868 Hayward Earthquake Alliance was formed to help coordinate and promote efforts and activities between organizations throughout the greater San Francisco Bay Area planning to commemorate the earthquake.