The Yellowstone Caldera, a volcanically active region under and around Yellowstone National Park, has long been the subject of research, speculation and science fiction regarding the possibility of a ...

Etna, Europe's largest active volcano, is monitored closely due to its proximity to the city of Catania and several other ...

Volcanic eruptions can destroy essential infrastructure, ground air traffic for days, wipe out entire cities, disrupt the climate for years, and even wipe out life on Earth, so it's important to know ...

Mount Spurr, just to the west of the city of Anchorage, is rumbling. The Alaska Volcano Observatory has been monitoring the earthquakes, gas emissions and visible changes at Spurr and think we might ...

(NEXSTAR) — There have long been questions about when Yellowstone’s volcanic system could see an eruption, especially after a massive hydrothermal explosion was caught on camera last summer.

Indonesian authorities issued a tsunami alert Wednesday after eruptions at Ruang mountain sent ash thousands of feet high. Officials ordered more than 11,000 people to leave the area. The volcano on ...

Mount Kilauea, a volcano that has been active in recent years, erupted again on Hawaii's Big Island, according to the U.S. Geological Survey.