A new explosive eruption started at the volcano and is still continuing at the time of this update.
A low-level ash column is rising to about 25,000 ft (7,6 km) elevation and drifting northeast.
This follows a several-hour elevated seismic tremor.
Explosion signals have been detected in the infrasound data from about least 02:00 local time and the National Weather Service has detected lightning in the vicinity of the volcano.
Source: Alaska Volcano Observatory volcano activity update 15 August 2023
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