NAPA, CA - AUGUST 24: A building is seen destroyed following a reported 6.0 earthquake on August 24, 2014 in Napa, California. A 6.0 earthquake rocked the San Francisco Bay Area shortly after 3 am on Sunday morning. (Photo by Justin Sullivan/Getty Images)
San Francisco Earthquake
NAPA, CA - AUGUST 24: People survey a destroyed building following a reported 6.0 earthquake on August 24, 2014 in Napa, California. A 6.0 earthquake rocked the San Francisco Bay Area shortly after 3am on Sunday morning. (Photo by Justin Sullivan/Getty Images)
San Francisco Earthquake
NAPA, CA - AUGUST 24: A reporter surveys the scene of a building collapse following a reported 6.0 earthquake on August 24, 2014 in Napa, California. A 6.0 earthquake rocked the San Francisco Bay Area shortly after 3:00 am on Sunday morning causing damage to buildings and sending at least 70 people to a hospital with non-life threatening injuries. (Photo by Justin Sullivan/Getty Images)
San Francisco Earthquake
NAPA, CA - AUGUST 24: A building is seen destroyed following a reported 6.0 earthquake on August 24, 2014 in Napa, California. A 6.0 earthquake rocked the San Francisco Bay Area shortly after 3:00 am on Sunday morning causing damage to buildings and sending at least 70 people to a hospital with non-life threatening injuries. (Photo by Justin Sullivan/Getty Images)
San Francisco Earthquake
NAPA, CA - AUGUST 24: A section of the Napa County Court house is seen damaged following a reported 6.0 earthquake on August 24, 2014 in Napa, California. A 6.0 earthquake rocked the San Francisco Bay Area shortly after 3:00 am on Sunday morning causing damage to buildings and sending at least 70 people to a hospital with non-life threatening injuries. (Photo by Justin Sullivan/Getty Images)
San Francisco Earthquake
NAPA, CA - AUGUST 24: Bricks from a damaged building sit on a car following a reported 6.0 earthquake on August 24, 2014 in Napa, California. A 6.0 earthquake rocked the San Francisco Bay Area shortly after 3:00 am on Sunday morning causing damage to buildings and sending at least 70 people to a hospital with non-life threatening injuries. (Photo by Justin Sullivan/Getty Images)
San Francisco Earthquake
NAPA, CA - AUGUST 24: Debris sits on the ground in front of a damaged building following a reported 6.0 earthquake on August 24, 2014 in Napa, California. A 6.0 earthquake rocked the San Francisco Bay Area shortly after 3:00 am on Sunday morning causing damage to buildings and sending at least 70 people to a hospital with non-life threatening injuries. (Photo by Justin Sullivan/Getty Images)
San Francisco Earthquake
NAPA, CA - AUGUST 24: Napa County firefighters spray foam on hot spots from a fire at a mobile home park following a reported 6.0 earthquake on August 24, 2014 in Napa, California. A 6.0 earthquake rocked the San Francisco Bay Area shortly after 3:00 am on Sunday morning causing damage to buildings and sending at least 70 people to a hospital with non-life threatening injuries. (Photo by Justin Sullivan/Getty Images)
San Francisco Earthquake
NAPA, CA - AUGUST 24: A man uses a garden hose cool hot spots from a fire at a mobile home park following a reported 6.0 earthquake on August 24, 2014 in Napa, California. A 6.0 earthquake rocked the San Francisco Bay Area shortly after 3:00 am on Sunday morning causing damage to buildings and sending at least 70 people to a hospital with non-life threatening injuries. (Photo by Justin Sullivan/Getty Images)
San Francisco Earthquake
NAPA, CA - AUGUST 24: A man uses a garden hose cool hot spots from a fire at a mobile home park following a reported 6.0 earthquake on August 24, 2014 in Napa, California. A 6.0 earthquake rocked the San Francisco Bay Area shortly after 3:00 am on Sunday morning causing damage to buildings and sending at least 70 people to a hospital with non-life threatening injuries. (Photo by Justin Sullivan/Getty Images)