Scientists investigating the Yellowstone supervolcano have discovered movement deep in the crater, sparking fears the sleeping giant could erupt. The volcano, located under Yellowstone National ...

Kilauea volcano in Hawaii is erupting with fountains of lava. Check out a USGS livestream from within the Halema'uma'u crater ... the cauldron-like area at the top of a volcano.

"There's some very large fountains playing in the southwest corner of Halemaumau Crater, which is in the southern half of Kaluapele, or the summit caldera of Kilauea Volcano up here and near the ...