Subduction of the Pacific Plate beneath the North American Plate creating the Aleutian trench and volcanic island arc (Credit: Alaska Volcano Observatory). Click image for a larger view.
Edgecumbe, a long dormant volcano in Alaska. The Alaska Volcano Observatory (AVO) discovered that magma has been moving upward through Earth’s crust beneath the volcano, which has been quiet in ...
Geologists are monitoring a volcano near Alaska's largest city after an increase in earthquakes underneath it - which could signal a coming eruption. Mount Spurr last erupted in 1992, blowing a ...
This image provided by Alaska Volcano Observatory shows the summit of Mount Spurr on Oct. 24, 2024, in Alaska. (Wyatt Mayo/Alaska Volcano Observatory, U.S. Geological Survey via AP) ANCHORAGE, Alaska ...