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

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

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

The United States Geological Survey (USGS) shows lava fountains shooting up high in the latest episode of an ongoing eruption ...

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