A youngster rides his scooter over a sidewalk buckled by an earthquake Sunday, Aug. 24, 2014, 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. (AP Photo/Rich Pedroncelli), APTOPIX