Uses the earthquake in the San Francisco Bay Area and Loma Prieta on October 21, 1989, as the focus of a study of earth science, particularly earthquakes, faults, landslides, earth structure, plate techtonics, and liquefaction. Text includes science activities such as locating earthquakes and earthquake-resistant designs. Also included are interdisciplinary activities such as writing an essay and the math behind earthquake predictions. Video shows news coverage of the San Francisco/Loma Prieta earthquake.

"Earth science module"--Cover.