Video from inside a city courtroom shows ceiling tiles collapsing and the lights flickering as the ground shakes. Just outside that room, people took refuge under tables, trying to avoid falling debris.
Meanwhile power outages knocked newsrooms off the airways. At one local CBS station, reporters turned to social media to broadcast the damage.
Home security footage showed families scrambling for cover amid the quake. In one video, a frantic mother grabbed her son and embraced him as their dining room light swayed back and forth above.
A tsunami warning was issued in the wake of the quake.