See below for a map of tsunami risk by county, and a list of the U.S. counties at greatest risk from such a disaster.

A tsunami warning was lifted hours after a 7.9-magnitude earthquake struck off the coast of Alaska in the US. The quake hit 280km (173 miles) south-east of Kodiak, at a depth of 25km, at 00:31 ...

A major 7.5-magnitude quake off the coast of Alaska triggered small tsunami waves on Monday ... quake which struck at a depth of 40 km. The at-risk zone extended hundreds of miles northeast ...