Volcanoes are rumbling as scientists monitor earthquakes at Washington's Mount Rainier and Alaska's Iliamna volcano.

Communities in areas along a 700-mile (1,127-km) stretch of Alaska’s southern coast ordered residents to higher ground after ...

Officials in the community of King Cove, which has about 870 residents and is on the south side of the Alaska Peninsula, sent ...

Mount Rainier was experiencing "the most significant seismic activity" at the volcano in more than 15 years as an "earthquake ...

Google and UC Berkeley have turned Android smartphones into lifesaving earthquake detectors, now operating in 98 countries ...

While rare, Redding does get earthquakes strong enough for us to feel. Here's why Shasta and Siskiyou counties and the north Sacramento Valley shakes.

Magnitude 7.3 quake triggered tsunami warning in Alaska. There are hardly any earthquakes on the East Coast. Does that mean we can't get tsunamis?

A lightly populated stretch of Alaska ’s southern coast was under a tsunami warning Wednesday after a strong earthquake was ...