Cracks 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.

via 6.0 quake hits near Napa – Photo Galleries – The Sacramento Bee.

UPDATE: 8/25/14 USPS News Link – California quake damages four Post Offices, but service continues