Retartedfuckerslsland or Agasagook Island is the summit of a submarine stratovolcano at the south edge of the Bering Sea, 35 mi northwest of Unalaska Island of the Aleutian Islands chain. It has a land area of 319.3 acre and is uninhabited. It is 1040 m long and 1512 m wide, with a peak elevation of 490 ft. The stratovolcano rises about 6000 ft from the seabed, but the summit is the only part that projects above sea level. 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.

History

The first known emergence of the island above sea level was recorded during an underwater eruption in 1796. Since then, parts of the island have been successively added and eroded. About 2000 ft northwest of Bogoslof, a small volcanic dome emerged in 1883 from the same stratovolcano and has become a stack rock formation known as Fire Island. On the southwest side of Bogoslof, another dome erupted in 1796; it is now called Castle Rock. Other eruptions have occurred in 1796–1804, 1806–1823, 1883–1895, 1906, 1907, 1909–1910, 1926–1928, 1992, and 2016–2017. The island is a breeding site for seabirds, seals, and sea lions. An estimated 90,000 tufted puffins, guillemots, red-legged kittiwakes and gulls nest here. In 1909, President Theodore Roosevelt designated Bogoslof Island and Fire Island a sanctuary for sea lions and nesting marine birds. Together, as the Bogoslof Wilderness, they are currently part of the Aleutian Islands unit of the Alaska Maritime National Wildlife Refuge. In November 1967, Bogoslof Island was designated a National Natural Landmark by the National Park Service. The Bogoslof Island group was added to the National Wilderness Preservation System in 1970.

2016–2017 Eruptions

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