Update: 5.6 quake hits near Alum Rock, strongest since Loma Prieta
By Sandra Gonzales, Julie Sevrens Lyons and Leslie Griffy
Article Launched: 10/30/2007 08:19:16 PM PDT
A moderate, but powerful earthquake struck San Jose just after 8 p.m. tonight, shaking buildings and prompting rattled residents to pour out of their homes.
The temblor on the Calaveras Fault lasted about 30 seconds. The U.S. Geological Survey preliminary magnitude estimate was 5.6, making it the most powerful quake to hit the Bay Area since Loma Prieta, Oct. 17, 1989. That was a magnitude 6.9.
The epicenter was five miles miles from Alum Rock, seven miles from Milpitas and nine miles from San Jose City Hall with the earthquake originating 5.7 miles below ground.