Alaska's Bogoslof Volcano erupted Sunday, sending a plume of ash at least 35,000 feet into the air and temporarily triggering the highest aviation alert, scientists say. The Bogoslof Volcano in the Aleutian Islands erupted at 2:16 p.m. Sunday, according to the Alaska Volcano Observatory. The eruption lasted 55 minutes. No further ash emissions have occurred at Bogoslof Volcano since the explosion, and seismic activity remains low, according to the observatory.