"It's fair to say that Alaska is California's biggest tsunami threat," said Michael West, director of Alaska Earthquake ...

One of the most powerful earthquakes ever recorded has resulted in authorities in Hawaii and California issuing tsunami warnings and advisories as waves and strong winds hit the coast. An ...

A major earthquake off the coast of Alaska could trigger a tsunami flooding San Francisco's Embarcadero. But the main sensors designed to provide warnings for such a tsunami will soon go dark.

The powerful tsunami that pounded Crescent City on California's north coast caused an estimated $1 million worth of damage to the harbor, officials said Friday in a first detailed accounting of the ...