Where are the most active volcanoes in the United States? From Hawaii’s fiery peaks to Alaska’s volcanic landscapes, discover ...

A major U.S. city is under threat from a potential volcanic eruption after more than 20 earthquakes were recorded in Alaska.

Over the Sierra crest — about 150 miles to the east of Manteca, Oakdale, and Turlock — is one of the world’s largest active ...

With a possible eruption looming, the Alaska Observatory is closely watching Mount Spurr. Your Alaska Link shows how one rural village is getting prepared. (Photo courtesy: AVO/USGS) ...

An explosion on Mount Spurr could generate massive cloud of ash, which could mess with airplanes and cause issues for humans.

Congressman Nick Begich (AK-R) introduced legislation to reauthorize the National Volcano Early Warning and Monitoring System ...

For a pilot, the first signs of flying into an ash cloud can include sudden darkness, fluctuating airspeed, and landing ...

It is no coincidence that Tsunami Awareness Month is in April. It commemorates the most devastating tsunami to hit the State ...

While scientists don't have an exact timeline of when the volcano could erupt, they say it's likely to happen before the end of the year.

Villages closer to Mount Spurr could be at risk of experiencing more ashfall than the Anchorage area if the volcano were to erupt.

Scientists have warned that the eruption in Anchorage, Alaska could happen within the next couple of weeks and cause aviation ...

Scientists say they used satellites and other technology to plumb the inner workings of a Bolivian volcano that last erupted 250,000 years ago.