Interesting Facts about Iceland's Volcano

Iceland's volcano: 9 Interesting facts

As the eruption of Eyjafjallajökull continues to cause travel chaos around the world, a look at some of the weirder stories to come out of the disaster

America's Ten Most Dangerous Volcanoes

10. Crater Lake Volcano, Oregon

Photograph by David McLain, National Geographic

A lava outcrop juts from the rim of Oregon's Crater Lake. Born of a blast that expelled more than 50 times the volume of magma as the Mount St. Helens eruption 30 years ago, this watery caldera is also the United States' tenth most dangerous volcano, according to the U.S. Geological Survey (USGS).