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

It is an 11,070-foot tall, ice- and snow-covered volcano roughly 80 miles northwest of Anchorage. Mount Spurr is one of 53 volcanoes in Alaska that have been active within the last 250 years.

Aerial view of Mt Spurr along the western edge of Cook Inlet between Anchorage, Alaska. Don Grall/Getty Images An increase in gas emissions confirms that new magma has entered the Earth’s crust ...

Mount Spurr, located about 75 miles West of Anchorage, has been acting up in recent weeks, prompting officials at the U.S. Geological Survey and Alaska Volcano Observatory to issue a yellow alert.