Increased seismic activity has been recorded at Mount Spurr Volcano in Alaska, prompting the Alaska Volcano Observatory to raise its alert level. This activity includes low-magnitude, shallow earthquakes near the summit.

A watch was issued for the Atka Volcanic Complex following a small explosive event that may have released a limited amount of volcanic ash. The Alaska Volcano Observatory is closely monitoring activity using seismic data, infrasound sensors, and web cameras.

An explosive eruption Friday at Shishaldin Volcano on the Aleutian Chain raised renewed unrest, resulting in a higher level of warning status by the Alaska Volcano Observatory.