​​Significant Historic Earthquakes (1800-1994)​

Significant Historic EarthquakesThe rate of historic earthquakes is used to estimate the rate of future earthquakes in calculating the probability of earthquake shaking. Click on the image to obtain a more detailed version of the map.
San Francisco 1906Shaking damage at Santa Rosa City Hall from the April 1906 San Francisco earthquake (Magnitude 7.9). Photo from Steinbrugge Collection, Earthquake Research Center, University of California, Berkeley..