View of Bogoslof Island from the northeast. Three lava domes are visible. The nearest is the 1992 dome. To the right, the flat-topped dome is from 1927. The furthest dome is Castle Peak, which was extruded during the 1796-1804 eruption. The raised bench is an accumulation of tephra deposits. Bogoslof is the emerged summit of a submarine stratovolcano that rises 6,000 feet from the Bering Sea floor.
Image courtesy of the photographer. National Marine Fisheries/NOAA