February 20, 2025 - The Atka Volcanic Complex is under a watch after a small explosive event occurred on Thursday evening, February 20. The Alaska Volcano Observatory (AVO) reported the event, noting that a small amount of volcanic ash was likely erupted. Cloud cover obstructed visual confirmation of ash below 10,000 feet, and no ash was detected above the clouds.
The AVO continues to monitor the complex using infrasound sensors, seismic data, and web cameras. The Great Sitkin volcano remains under a watch due to ongoing lava flow. Mount Spurr is under an advisory following increased unrest. Scientists at the AVO indicate that while the increased activity *could* signal a larger eruption, further evidence is needed to confirm an imminent eruption.