A seismologist from Seattle discussed recent volcanic activity across the United States. Here's what you should know.

When a volcano is dormant, it typically doesn't tend to make much noise. However, the Iliamna Volcano in Alaska is defying ...

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

Lava in Hawaii, seismic shaking in Alaska and underwater rumblings near Oregon. Scientists say it’s not the end of the world, but it’s definitely worth watching.

A volcano about 140 miles southwest of Anchorage, Alaska began rumbling recently after remaining quiet for nearly a hundred ...

An Alaskan volcano that has been inactive for more than 100 years is showing signs of rumbling, according to scientists.

Samples of extremely small crystal clots, each polished to the thickness of a human hair or thinner, have revealed ...

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

There is no tsunami threat to other parts of the U.S. or Canadian Pacific coasts, including California, Oregon, Washington, ...

A volcanic eruption in southwest Iceland has prompted evacuations, including at nearby tourist sites like the Blue Lagoon.

A tsunami warning has been issued for south Alaska and the Alaska Peninsula after a massive 7.3-magnitude earthquake, ...