Tanaga Island ( ale, Tanax̂ax; russian: остров Танага) is an island in the western

Andreanof Islands The Andreanof Islands ( ale, Niiĝuĝim tanangis, russian: Андреяновские острова) are a group of islands in the Aleutian Islands in southwestern Alaska. They are located at about 52° North and 172°57' to 179°09' West. Geogr ...

, in the southwest part of the

Aleutian Islands The Aleutian Islands (; ; ale, Unangam Tanangin,”Land of the Aleuts", possibly from Chukchi language, Chukchi ''aliat'', "island"), also called the Aleut Islands or Aleutic Islands and known before 1867 as the Catherine Archipelago, are a cha ...

Alaska Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., ...

. The island has a land area of , making it the 33rd largest oceanic island in the United States. Its highest point is volcano Mount Tanaga ( ale, Kusuuginax̂) at . Tanaga Island measures long and wide. Tanaga Island is about west of

Adak Island Adak Island ( ale, Adaax, russian: Адак) or Father Island is an island near the western extent of the Andreanof Islands group of the Aleutian Islands in Alaska. Alaska's southernmost town, Adak, Alaska, Adak, is located on the island. The isl ...

, the nearest inhabited island. There are several large waterfalls on Tanaga Island. Tanaga Island is uninhabited, but several cabins are shown on the

NOAA The National Oceanic and Atmospheric Administration (abbreviated as NOAA ) is an United States scientific and regulatory agency within the United States Department of Commerce that forecasts weather, monitors oceanic and atmospheric conditio ...

nautical chart, as well as some

Aleut The Aleuts ( ; russian: Алеуты, Aleuty) are the indigenous people of the Aleutian Islands, which are located between the North Pacific Ocean and the Bering Sea. Both the Aleut people and the islands are politically divided between the U ...

villages on the east side of the island.Nautical Chart containing Tanaga Island
There are no native land mammals on Tanaga Island. Tanaga Island was established as a Navy emergency landing field in July 1943 as an adjunct to the Adak Naval Operation Base.

Seabees United States Naval Construction Battalions, better known as the Navy Seabees, form the U.S. Naval Construction Force (NCF). The Seabee nickname is a heterograph of the initial letters "CB" from the words "Construction Battalion". Depending upon ...

of Naval Construction Battalion 45 built a runway, small-craft pier, mooring area, office and storage buildings, radio building, galley and mess facilities, dispensary, and of gravel road in 1943, near Lash Bay in the southwest of the island. The site was abandoned in 1945. The control tower is still shown on nautical charts.

Volcano

The last known eruption of

Tanaga volcano Tanaga ( ale, Kusuuginax̂) is a 5,924-foot (1,806 m) stratovolcano in the Aleutian Range of the U.S. state of Alaska. There have been three known eruptions since 1763. The most recent was in 1914 and produced lava flows. It sits west of ano ...

occurred in 1914. Earlier eruptions were reported in 1763-1770, 1791, and 1829. Reports of these eruptions are vague, but deposits on the flanks of the volcano show that typical eruptions produce blocky lava flows and occasional ash clouds. Eruptions have occurred both from the summit vent and a satellite vent on the volcano's northeast flank. Immediately west of

lies Sajaka, a compound edifice. Takawangha's summit is mostly ice-covered, except for four young craters that have erupted ash and lava flows in the last few thousand years. Parts of Takawangha's edifice are hydrothermally altered and may be unstable, and could produce localized debris avalanches. No historical eruptions are known from Sajaka or Takawangha; however, field work shows that recent eruptions have occurred and it is possible that historic eruptions attributed only to Tanaga may instead have come from these other vents.Alaska Volcano Observatory - Tanaga
/ref>

2017

A swarm of earthquakes was reported in January 2017 about 6 kilometers from Takawangha, causing the Alaska Volcano Observatory to raise the alert level to YELLOW/ADVISORY

References

External links

Tanaga Island Photos
Photos from Tanaga Island, July 2008] {{DEFAULTSORT:Tanaga Island Andreanof Islands Uninhabited islands of Alaska Islands of Alaska Islands of Unorganized Borough, Alaska