Powerful magnitude 7.8 earthquake strikes off of Alaska

A powerful 7.8 earthquake struck the Alaska Peninsula late Tuesday, triggering a tsunami warning that sent residents fleeing to higher ground before it was called off without any damaging waves.

Survivor of Alaska crab boat disaster: 'Sleeping to swimming' in minutes

Gribble, who's appeared on the Discovery Channel documentary series “Deadliest Catch," said the seven-member crew faced 20-foot seas, 40 mph winds and icy conditions.