This page presents vital statistics, summary of effects, and discussion of our meager knowledge about the location of the epicenter for the Great Fort Tejon, California, earthquake of 1857.

The Pacific Northwest Geodetic Array (PANGA), an organization devoted to the study of earthquakes and crustal deformation along the Cascadia subduction zone, provides information on the organization's facilities,...

This site, provided by the Southern California Earthquake Center, provides detailed information about the location and size of the Hector Mine earthquake of October 17, 1999.

This is an activity that students can do at home - actually, in the car. Students create a seismogram of the motion of the car as it moves down the road. This part of the lesson can be done by elementary, middle, and...

This page contains a map of southern California with epicenters of earthquakes shown as circles of different sizes and colors. The size and color of each earthquake symbol corresponds to its magnitude, as indicated by a...