Volcanoes inspire awe with spectacular eruptions and incandescent rivers of lava, but often their deadliest hazard is what ...

Researchers have identified a stable, gas-venting magma cap beneath Yellowstone, reducing eruption risk and advancing ...

Activity below the surface of an Alaskan volcano has scientists on edge over an eruption that could be coming. Mount Spurr, which is about 78 miles southwest of Anchorage, has been the focus of ...

Nearly 300,000 Americans remain on alert as a massive volcano continues to show signs of unrest that began earlier this year.