CentralNotice From Wikipedia, the free encyclopedia Jump to navigation Jump to search Mount Okmok Aerial view looking across Okmok Caldera. Highest point Elevation 3,519 ft (1,073 m) Coordinates 53°28′05″N 168°10′30″W  /  53.46806°N 168.17500°W  / 53.46806; -168.17500 Coordinates : 53°28′05″N 168°10′30″W  /  53.46806°N 168.17500°W  / 53.46806; -168.17500 Geography Mount Okmok Umnak Island Show map of Umnak Mount Okmok Mount Okmok (Alaska) Show map of Alaska Location Umnak Island, Aleutian Islands , Alaska , US Topo map USGS Umnak B-1 Geology Mountain type Shield volcano Complex with nested Caldera [1] Volcanic arc / belt Aleutian Arc Last eruption July to August 2008 Mount Okmok is the highest point on the rim of Okmok Caldera ( Unmagim Anatuu [2] in Aleut ) on the northeastern part of Umnak Island in the eastern Aleutian Islands of Alaska . This 9.3 kilomet...