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.

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 volcanic eruption is underway on the Reykjanes Peninsula in Iceland, prompting the evacuation of Grindavik and the Blue Lagoon.

Scientists aboard a U.S. Coast Guard icebreaker have discovered an unusual volcano-like structure in the Arctic Ocean, potentially emitting gas and rising 500 meters from the seafloor.

A surprise eruption of steam in a Yellowstone National Park geyser basin that sent people scrambling for safety as basketball-sized rocks flew overhead has highlighted a little-known hazard that scientists hope to be able to predict someday.