Uliaga Volcano — United States

The small 3-km-wide island of Uliaga, located at the NE end of the Islands of the Four Mountains archipelago immediately NW of Kagamil Island, is an eroded stratovolcano. It is the smallest of the Islands of the Four Mountains volcanoes. There are no reports of historical eruptions, but is was considered to have been active during the Holocene by Nye et al. (1998).