Bogoslof Island | |
---|---|
Highest point | |
Elevation | 492 ft (150 m)[1] |
Coordinates | 53°55′38″N 168°02′04″W / 53.92722°N 168.03444°W[1] |
Geography | |
Location | Aleutian Islands, Alaska |
Geology | |
Mountain type | Submarine volcano[2] |
Volcanic arc | Aleutian Arc[2] |
Last eruption | December 20, 2016–August 30, 2017[3] |
Designated | 1967 |
Bogoslof Island or Agasagook Island (Aleut: Aĝasaaĝux̂[4]) is the summit of a submarine stratovolcano at the south edge of the Bering Sea, 35 miles (56 km) northwest of Unalaska Island of the Aleutian Islands chain. It has a land area of 319.3 acres (1.292 km2) and is uninhabited. It is 1,040 meters (3,410 ft) long and 1,512 m (4,961 ft) wide, with a peak elevation of 490 feet (150 m). The stratovolcano rises about 6,000 ft (1,800 m) from the seabed, but the summit is the only part that projects above sea level.[1] The island is believed to be relatively new, with the volcano being entirely below sea level before 1796, and most of the presently 300-acre island being formed by eruptions since 1900.