Geologists are closely watching a volcano in Chile that has erupted twice in 24 hours. Another eruption might be looming. The eruption from the Calbuco volcano came with little warning, spewing a ...

SANTIAGO, Chile -- The Calbuco volcano erupted Wednesday for the first time in more than 42 years, billowing a huge ash cloud over a sparsely populated, mountainous area in southern Chile. See photos ...

This year, the Earth’s core put on a show unlike any other, with volcanic eruptions that dazzled observers from every continent. Some of these eruptions were so breathtaking they left viewers ...