Last week’s earthquake in western Montana was the strongest earthquake in the region in 60 years. An initial quake set off 10 smaller earthquakes, with people as far west as Seattle and as far north ...

Hidden beneath an ancient volcanic basin on the Oregon and Nevada border, geologists say the United States may be sitting on ...

One of California’s riskiest volcanoes has for decades been undergoing geological changes and seismic activity, which are sometimes a precursor to an eruption, but — thankfully — no supervolcanic ...

This stunning astronaut photo shows the natural beauty of Japan's Aso Caldera — a giant crater-like bowl containing 17 different volcanoes, leftover from major eruptions spanning over 200,000 years.

A giant, undiscovered volcano may exist beneath the waters surrounding a group of small islands off Alaska’s Aleutian chain, according to the American Geophysical Union. John Lyons/USGS. A giant and ...

Lake Taupo-area scientists in New Zealand raised the alert level of a volcano sitting beneath the country’s largest lake on Tuesday after detecting 700 small earthquakes below the surface since May.

The caldera-forming eruption of Campi Flegrei (Italy) 40,000 years ago is the largest known eruption in Europe during the last 200,000 years, but little is known about other large eruptions at the ...

In the interest of the University Geological Museum, G. C. Curtis '96, has been commissioned to go to Hawaii by R. W. Sayles '03, Curator of the Geological Collections. Mr. Curtis will start at once ...

A lava flow from Hawaii’s Kilauea Volcano enters the ocean near Isaac Hale Beach Park on August 5, 2018. The volcano’s 2018 eruption was its largest in over 200 years. Credits: USGS Hawaii’s Kilauea ...