A tornado already flings debris up to 65 kilometers from where it forms. Now change what it is picking up. Instead of roof tiles and fence posts, imagine molten rock, superheated ash, and shattered ...
HAWAII VOLCANOES NATIONAL PARK, Hawaii — A unique phenomenon known as a "Tephra Devil" was captured swirling over a crater on Hawaii's Kilauea during the volcano's 47th eruptive episode last week.