Increased seismicity and gas emissions at Kupreanof volcano, Alaska
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May 9, 2026
Seismic activity and sulfur dioxide emissions have increased at Kupreanof volcano in Alaska over recent months, likely due to magmatic intrusion beneath the volcano. Kupreanof is a heavily glaciated stratovolcano on the Alaska Peninsula with no known historical eruptions. Current data do not indicate an eruption is imminent.
Source
Discussion in the ATmosphere