Volcanologists at the United States Geological Survey’s Alaska Volcano Observatory are closely monitoring Mount Spurr in southern Alaska due to recent seismic activity. The volcano has been experiencing increased earthquakes since April, with researchers recording over 2,700 quakes. This increase in activity suggests that an eruption could be possible.
According to Matt Haney, scientist-in-charge of the Alaska Volcano Observatory, a period of sustained seismic activity and gas emissions may signal an impending eruption. However, it’s uncertain when this will happen. The volcano has been quiet for thousands of years, and earthquakes have shifted away from the summit towards Crater Peak.
If Crater Peak erupts again, it could release hot gas, rock, and ash at speeds over 200 miles per hour, potentially melting snow and ice on the surface. This could lead to mudflows known as lahars. Although few people live near Mount Spurr, an eruption could still impact nearby cities like Anchorage.
The likelihood of a future eruption remains uncertain, with scientists giving it a roughly 50-50 chance. Monitoring is ongoing, including analyzing seismic data from multiple stations and taking gas measurements by flying over the volcano.
Source: https://www.smithsonianmag.com/smart-news/volcanic-unrest-at-alaskas-mount-spurr-suggests-50-50-chance-an-eruption-could-be-coming-180986069