Barrels filled with Cabernet Sauvignon are toppled on one another following an earthquake at the B.R. Cohn Winery barrel storage facility Sunday in Napa, Calif. Winemakers in California-s storied Napa Valley woke up to thousands of broken bottles, barrels and gallons of ruined wine.

A cracked section of roadway is shown in the Carneros district following an earthquake Sunday in Napa, Calif. The largest earthquake to hit the San Francisco Bay Area in 25 years struck before dawn on Sunday, sending scores of people to hospitals, igniting fires, damaging historic buildings and knocking out power to thousands of homes and businesses in California's wine country.

A youngster rides his scooter over a sidewalk buckled by an earthquake Sunda in Napa, Calif. A large earthquake caused significant damage and left at least three critically injured in California's northern Bay Area early Sunday, igniting fires, sending at least 87 people to a hospital, knocking out power to tens of thousands and sending residents running out of their homes in the darkness.

A mailbox is all that remains of one of four mobile homes which were destroyed in a gas fire at the Napa Valley Mobile Home Park, in Napa, Calif.

Law enforcement officers stand outside of an earthquake damaged building in Napa, Calif., on Sunday.