A dormant volcano in Ethiopia erupted after 10,000 years of silence. This event shows how the world's little-known volcanoes pose the greatest threat. When you purchase through links on our site, we ...

The most recent eruptive episode at Kilauea occurred on Dec. 6, reaching over 1,000 feet in height. U.S. Geological Survey To continue reading this content, please ...

Mount Rainier’s quiet, snowcapped profile hides a restless interior that has just rattled itself with more than a thousand tiny earthquakes, a reminder that one of the country’s most dangerous ...