California Earthquake History and Catalogs

Online California Earthquake lists:

Magnitude 6.5 and greater (or destructive) California Earthquakes

Magnitude 6.5 and greater (or destructive) California Earthquakes Sorted by Month

Downloadable California Earthquake Catalogs:

Updated Magnitude 4 and greater Earthquakes, Compiled from various sources (1769-2000)
Also download/read this file: information about the catalog
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Original Magnitude 4 and greater Earthquakes, Compiled from various sources (1769-1994)
(This is the catalog used in the 1996 PSHA map)
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Magnitude 5.5 and greater Earthquakes, list from Map Sheet 49 (1800-2000)
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Fault Source Points
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Information on California Geological Survey's Map Sheet 49 (Epicenters of and Areas Damaged by M > 5 California Earthquakes, 1800-1999) can be found here.

Shaking damage at Santa Rosa City Hall from the April 1906 San Francisco earthquake (Magnitude 7.9).  Photo from Stienbrugge Collection, Earthquake Research Center, University of California, Berkeley.