On June 14, 1914, three men climbed Lassen Peak to see why a seemingly dormant volcano had started rumbling 16 days before. Now, peering into a newborn crater, they felt the ground tremble.

Mount Etna EruptionA scientist overlooks an eruption at Mount Etna, one of the world’s most active volcanoes. The Sicily, Italy, volcano is almost constantly in a state of eruption. Get there ...