Volcano monitoring is not a prediction that disaster is imminent. Scientists watch deformation, earthquakes, gas, heat, and ...

Mount Rainier (Figure 2.1) is one of about two dozen recently active volcanoes in the Cascade Range, a volcanic arc formed by subduction of the Juan de Fuca plate beneath the North American plate.

Korosec, M. S., 1989, New K-Ar age dates, geochemistry, and stratigraphic data for the Indian Heaven Quaternary volcanic field, south Cascade Range, Washington: Washington Division of Geology and ...

Newberry National Volcanic Monument has two crater lakes, a mile-long lava cave, ancient obsidian fields, and the kind of ...

The USGS ranks the nation’s most hazardous peaks by threat potential, tracking seismic swings, gas emissions and ground ...

By late July 2026, the volcano had reached its 52nd eruptive episode in a remarkable series of lava-fountaining events that ...

Here’s why August is a big month for our National Park Service in several ways. Sunday, Aug. 9, 2026, Lassen Volcanic ...

Ancient volcanic eruptions may explain why Earth experienced 22 prolonged Holocene cold periods, according to a new climate study.

A short path leads to the viewing area for Houghton-Douglass Falls with bonus panoramic views of the Keweenaw Peninsula’s ...

The historic town of Shaniko was of particular interest as I passed through. In its prime, it was a thriving hub for sheep ...

Highest-ever resolution pictures of our star could help show why its corona is millions of degrees hotter than its surface ...