Minnesota man David DeCook recently discovered a 3.81-carat brown diamond in Crater of Diamonds State Park in southwestern ...

An explosion on Mount Spurr could generate massive cloud of ash, which could mess with airplanes and cause issues for humans.

Axial Seamount sits at a geological crossroads, fueling some of the most intense undersea action in the region.

Eruptive activity at Kīlauea’s summit began again Dec. 23, 2024, with the first in what has become 20 discrete lava ...