View from the northeast of Bogoslof Island. Three lava domes are visible. The closest (at north end of island) is the 1992 dome. To the right (west) of it is the flat-topped 1927 dome. The farthest dome (midway along west shore) 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