A long-term ground deformation change has been detected at the volcano by Global Navigation Satellite Systems (GNSS) stations during September and November.
A typical sign for the volcano is near-constant inflation, reflecting continued magma intrusion and migration under the surface at depths between 2 km and 4 km.
The Alaska Volcano Observatory (AVO) stated that observed changes are in accordance with pressure increase at shallow levels (Source: Alaska Volcano Observatory volcano activity update 9 December 2021
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