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Open Image ModalNina Quidit cleans up the Dollar Plus and Party Supplies Store in American Canyon Calif. after an earthquake on Sunday Aug. 24, 2014. Quidit and her husband were woken up in the early morning hours by the store's alarm company and immediately drove in to begin clean up. The 6.0-magnitude quake caused six significant fires, including at four mobile homes, Napa Division Fire Chief Darren Drake said. (AP Photo/Alex Washburn) (credit:ASSOCIATED PRESS)
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Open Image ModalPeople look at a damaged building with a top corner exposed following an earthquake Sunday, Aug. 24, 2014, in Napa, Calif. A large earthquake rolled through California's northern Bay Area early Sunday, damaging some buildings, igniting fires, knocking out power to tens of thousands and sending residents running out of their homes in the darkness. (AP Photo/Eric Risberg) (credit:ASSOCIATED PRESS)
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Open Image ModalBricks and fallen rubble cover a car with the old courthouse in the background following an earthquake Sunday, Aug. 24, 2014, in Napa, Calif. A large earthquake rolled through California's northern Bay Area early Sunday, damaging some buildings, igniting fires, knocking out power to tens of thousands and sending residents running out of their homes in the darkness. (AP Photo/Eric Risberg) (credit:ASSOCIATED PRESS)
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Open Image ModalNAPA, CA - AUGUST 24: People wearing bathrobes walk down a street 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) (credit:Justin Sullivan via Getty Images)
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Open Image ModalCracks and fallen brick are seen in the main post office following an earthquake Sunday, Aug. 24, 2014, in Napa, Calif. A large earthquake rolled through California's northern Bay Area early Sunday, damaging some buildings, igniting fires, knocking out power to tens of thousands and sending residents running out of their homes in the darkness.(AP Photo/Eric Risberg) (credit:ASSOCIATED PRESS)
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Open Image ModalGurbeer Singh cleans up merchandise which fell due to an earthquake at a 7-Eleven store Sunday, Aug. 24, 2014, in American Canyon, Calif. Officials say an earthquake with a preliminary magnitude of 6.0 has been reported in California's northern San Francisco Bay area. (AP Photo/Ben Margot) (credit:ASSOCIATED PRESS)
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Open Image ModalNAPA, CA - AUGUST 24: A worker walks by rubble next to a destroyed buillding 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) (credit:Justin Sullivan via Getty Images)
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Open Image ModalRubble covers the sidewalk in front of the Vintners Collective multi-winery tasting room following an earthquake Sunday, Aug. 24, 2014, in Napa, Calif. A large earthquake rolled through California's northern Bay Area early Sunday, damaging some buildings, igniting fires, knocking out power to tens of thousands and sending residents running out of their homes in the darkness.(AP Photo/Eric Risberg) (credit:ASSOCIATED PRESS)
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Open Image ModalRubble covers the sidewalk in front of the Vintners Collective multi-winery tasting room following an earthquake Sunday, Aug. 24, 2014, in Napa, Calif. A large earthquake rolled through California's northern Bay Area early Sunday, damaging some buildings, igniting fires, knocking out power to tens of thousands and sending residents running out of their homes in the darkness.(AP Photo/Eric Risberg) (credit:ASSOCIATED PRESS)
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Open Image ModalA reporter does a standup in front of the damaged Vintners Collective multi-winery tasting room following an earthquake Sunday, Aug. 24, 2014, in Napa, Calif. A large earthquake rolled through California's northern Bay Area early Sunday, damaging some buildings, igniting fires, knocking out power to tens of thousands and sending residents running out of their homes in the darkness.(AP Photo/Eric Risberg) (credit:ASSOCIATED PRESS)
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Open Image ModalWill Wright, left, and Joe Pfeifer, right, clean up the broken windows of a restaurant following an earthquake Sunday, Aug. 24, 2014, in Napa, Calif. A large earthquake rolled through California's northern Bay Area early Sunday, damaging some buildings, igniting fires, knocking out power to tens of thousands and sending residents running out of their homes in the darkness. (AP Photo/Eric Risberg) (credit:ASSOCIATED PRESS)
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Open Image ModalNina Quidit cleans up the Dollar Plus and Party Supplies Store in American Canyon Calif., after an earthquake on Sunday, Aug. 24, 2014. Quidit and her husband were woken up in the early morning hours by the store's alarm company and immediately drove in to begin cleaning up. (AP Photo/Alex Washburn) (credit:ASSOCIATED PRESS)
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Open Image ModalPeople walk past a tumbled mannequin and broken storefront window on First Street following an earthquake Sunday, Aug. 24, 2014, in Napa, Calif. A large earthquake rolled through California's northern Bay Area early Sunday, damaging some buildings, igniting fires, knocking out power to tens of thousands and sending residents running out of their homes in the darkness.(AP Photo/Eric Risberg) (credit:ASSOCIATED PRESS)
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Open Image ModalWill Wright, left, and Joe Pfeifer, right, clean up the broken windows of a restaurant following an earthquake Sunday, Aug. 24, 2014, in Napa, Calif. A large earthquake rolled through California's northern Bay Area early Sunday, damaging some buildings, igniting fires, knocking out power to tens of thousands and sending residents running out of their homes in the darkness. (AP Photo/Eric Risberg) (credit:ASSOCIATED PRESS)
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Open Image ModalA broken mannequin and storefront window are on First Street following an earthquake Sunday, Aug. 24, 2014, in Napa, Calif. A large earthquake rolled through California's northern Bay Area early Sunday, damaging some buildings, igniting fires, knocking out power to tens of thousands and sending residents running out of their homes in the darkness. (AP Photo/Eric Risberg) (credit:ASSOCIATED PRESS)
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Open Image ModalPeople look at a damaged building with a top corner exposed following an earthquake Sunday, Aug. 24, 2014, in Napa, Calif. A large earthquake rolled through California's northern Bay Area early Sunday, damaging some buildings, igniting fires, knocking out power to tens of thousands and sending residents running out of their homes in the darkness. (AP Photo/Eric Risberg) (credit:ASSOCIATED PRESS)
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Open Image ModalThis photo provided by Lyall Davenport shows damage to a building in Napa, Calif. early Sunday, Aug. 24, 2014. Officials say an earthquake with a preliminary magnitude of 6.0 has been reported in California's northern San Francisco Bay area. (AP Photo/Lyall Davenport) (credit:ASSOCIATED PRESS)
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Open Image ModalProducts litter the floor of the Dollar Plus and Party Supplies Store in American Canyon, Calif., Sunday, Aug. 24, 2014. Owners Nina and Marc Quidit were woken up in the early morning hours by the store's alarm company and immediately drove in to begin cleaning up. (AP Photo/Alex Washburn) (credit:ASSOCIATED PRESS)
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Open Image ModalBricks are in the street after a building was damaged during an earthquake in Napa, Calif., Sunday, Aug. 24, 2014. A large earthquake rolled through California's northern Bay Area early Sunday, damaging some buildings, knocking out power to thousands and sending residents running out of their homes in the darkness. (AP Photo/Ellen Knickmeyer) (credit:ASSOCIATED PRESS)
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Open Image ModalNAPA, 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) (credit:Justin Sullivan via Getty Images)
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Open Image ModalNAPA, CA - AUGUST 24: Glass from a business litters the ground 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) (credit:Justin Sullivan via Getty Images)
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Open Image ModalJean Meehan looks over the damage to her JHM Stamp and Collectibles store following an earthquake Sunday, Aug. 24, 2014, in Napa, Calif. A large earthquake caused significant damage in California's northern Bay Area early Sunday, sending at least 70 people to a hospital, igniting fires, knocking out power to tens of thousands and sending residents running out of their homes in the darkness. (AP Photo/Eric Risberg) (credit:ASSOCIATED PRESS)
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Open Image ModalA man photographs damage to a post office in Napa, Calif., following an earthquake Sunday, Aug. 24, 2014. 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 (AP Photo/Noah Berger) (credit:ASSOCIATED PRESS)
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Open Image ModalNAPA, CA - AUGUST 24: A Napa County firefighter sprays 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) (credit:Justin Sullivan via Getty Images)
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Open Image ModalNAPA, 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) (credit:Justin Sullivan via Getty Images)
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Open Image ModalNAPA, CA - AUGUST 24: Bottles of olive oil and vinegar sit on the floor of a business damaged by 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) (credit:Justin Sullivan via Getty Images)
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Open Image ModalNAPA, CA - AUGUST 24: Vinegar flows out of the front door of a business damaged by 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) (credit:Justin Sullivan via Getty Images)
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Open Image ModalNAPA, 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) (credit:Justin Sullivan via Getty Images)