A state of emergency exists in southern Napa County after Sunday's magnitude-6.0 earthquake, the largest to shake the Bay Area since a magnitude-6.9 quake in 1989. No deaths were reported but there were many injuries, most of them minor, and a great deal of damage in the city of Napa. Gas-fed fires are out and crews are making progress restoring power to thousands.
The quake caught many people sound asleep, sending dressers, mirrors and pictures crashing down around them.
Crews have begun to assess damage to homes, bridges and roadways. Queen of the Valley Medical Center in Napa set up a triage tent, where it says it treated more than 170 people following the quake.
An initial assessment finds dozens of homes and buildings unsafe to occupy. The buildings include a historic courthouse where a 10-foot wide hole opened up. Officials are still adding up the damage to submit a cost estimate for possible federal assistance.
Scientists say aftershocks are expected to continue for several weeks. State Geologist John Parrish is warning that buildings damaged in the quake will be more susceptible to collapse from aftershocks. The quake caused gas and water lines to rupture, sparking fires. Four homes in a mobile home park were destroyed.