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SAR used to detect magma activity beneath Mount Edgecumbe

Interferogram of Mt Egdecumbe

In April 2022, a seismic swarm near Mt. Edgecumbe in southeast Alaska suggested renewed activity at this unmonitored, dormant volcano. Sentinel-1 data obtained from ASF were analyzed to assess volcanic activity by the Alaska Volcano Observatory. Beginning in 2018, surface inflation observed through ASF HyP3-produced interferometry suggests magma movement within the mountain. Analysis of seismicity recorded 25 km away confirms increased activity.

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