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US Geological Survey
Central California Earthquake Hazards Project
Here is a review of the geology behind earthquakes and what is being done to predict the "Big One" on the San Andreas Fault.
University of Southern California
Earthquake Country Alliance: Putting Down Roots in Earthquake Country
This handbook is a resource for living in earthquake country. It provides information about why we should care about earthquakes in Southern California, what we should do to be safe and reduce damage, and also what we should know about...
Exploratorium
Exploratorium: Loma Prieta, Bay Area, Earthquake 1989
This outstanding multimedia site documents the earthquake and related events that took place on October 17, 1989 in the San Francisco Bay Area.
University of Southern California
University of Southern California:tsunami Research Group
This site provides a world map of locations of past tsunamis, some video/animations of tsunamis, and a list of additional links to related topics.
Other
Earth Waves: Our Changing Planet
A compilation of information from volunteers on earthquakes and earthquake prediction. Includes a lot of information on quakes in the California area plus some nice maps.
University of California
University of California, Berkeley: Civil and Environmental Engineering
This resource provides information about civil and environmental engineering.