Lava is supposed to be red—that’s volcanoes 101. But at Indonesia’s Kawah Ijen, the Earth decides to break the rules. Instead ...

Hawaii’s Kilauea volcano erupted again on Wednesday for the 39th time in a year, continuing to be among one of the world’s most active volcanoes.

Many of the top U.S. National Parks are shuttered for the winter season. Snowed in, the roads become unpassable. However, ...

Kablooey!” That’s the word U.S. Geological Survey volcanic experts used to describe a muddy eruption at Black Diamond Pool in ...