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 ...

Magma chambers function both as repositories for melt rising through the crust and as reservoirs that feed individual volcanic eruptions. During silicic caldera-forming eruptions, these functions ...

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

A caldera is a very large crater that forms after a very large volcanic eruption. The eruption is explosive and ejects a lot of material. Most of what comes out of the volcano is blown a great ...

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 ...

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.

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 ...