Mount Shasta, a steep-sided Cascade Range stratovolcano in Northern California, looms above Little Glass Mountain, a thick obsidian flow erupted from the Medicine Lake shield volcano about 1,000 years ...

This week the U.S. Geological Survey Cascades Volcano Observatory, in cooperation with the U.S. Forest Service and Mount Hood National Forest, installed three new volcano monitoring stations on the ...

Plans are underway to implement a new volcano monitoring system across the United States. The radar-based system, called VolcSARvatory, was developed in a joint effort by the University of Alaska ...

Ocean swells are constantly occurring across the Earth’s oceans. These swells interact with the ocean crust below, creating continuous ocean noise that travels all over the Earth, including through ...

Volcanic eruptive activity may take many forms, from gently erupting basaltic fissures in Hawaii to intense explosive eruptions like those of Mount St. Helens. Volcano observatory scientists are ...

Authorities in Iceland fear stormy weather conditions could affect monitoring systems as the country awaits an “imminent” volcanic eruption. Just 165 small tremors have been recorded in the affected ...

A new study, led by Professor Mike Kendall from the Department of Earth Sciences, has investigated the use of a new monitoring technique for early warning of a volcanic eruption. The research team ...

A volcano believed to be extinct for around 700,000 years is showing clear signs of rising again, surprising geologists who ...

Plans are underway to install a “gold standard” monitoring station on Q’welq’welústen/Mount Meager in spring 2026, to listen for signs of unrest on the active volcano. The installation is an important ...