Scientists have uncovered a long-missing piece of the volcanic puzzle: rising magma doesn’t just form explosive gas bubbles when pressure drops—it can do so simply by being sheared and “kneaded” ...

Learn how stress inside a volcano can make gas bubbles form early, helping explain why some eruptions stay quiet instead of exploding. One of the most explosive volcanoes in U.S. history began its ...

One of the world's most active volcanoes spewed lava into the air for a second straight day on Tuesday. The eruption of Kilauea volcano on Hawaii's Big Island has stayed within the mountain's summit ...

Terrified tourists were seen scrambling for cover as they were pelted with lava from an exploding volcano in Guatemala. Hikers tried to avoid being struck by chunks of burning rocks after Volcán de ...