The Bureau of Reclamation will send more water out of Lake Shasta at Shasta Dam. Here's how long those increased water ...

A little-known volcano on a remote Pacific island may have been the source of one of the 19th century’s most powerful ...

An eruption of Mount Churchill today similar to previous major plumes would bring much of the Northern Hemisphere to a ...

Yellowstone Park is a popular destination for geology field trips. It’s easy to see why — the dynamic landscape contains a ...