Early Sunday morning, the Bay Area was awakened by a magnitude 6.0 earthquake, the biggest earthquake the region has experienced since the Loma Prieta earthquake nearly 25 years ago. The earthquake was centered 6 miles (10 km) south of the city of Napa, which is located about 50 miles northeast of San Francisco.
10 slide Powerpoint presentation (zipped ppt 5.59 MB / pdf .98 MB)
Presentación en Español (zipped ppt 5.54 MB / pdf 1.14 MB)
University of California Berkeley - Seismo Blog