The AVO said an eruption was "likely, but not certain, to occur within the next few weeks or months." Why It Matters. Mount ...

The route of the Harriman Alaska Expedition of 1899. By Henry Gannett and the U. S. Geological Survery. Source: Library of Congress. Map artist Gilbert Thompson drew the map showing the Hubbard ...

Numerous small, shallow earthquakes continue to rumble under Alaska's Mount Spurr, prompting fears of an imminent eruption.