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Concept
Enewetak Atoll
Summary
Enewetak Atoll (ɛˈniːwəˌtɔːk,_ˌɛnɪˈwiːtɔːk; also spelled Eniwetok Atoll or sometimes Eniewetok; Ānewetak, yan&yweytak, or Āne-wātak, yan&y-waytak; known to the Japanese as Brown Atoll or Brown Island; ブラウン環礁) is a large coral atoll of 40 islands in the Pacific Ocean and with its 296 people (as of 2021) forms a legislative district of the Ralik Chain of the Marshall Islands. With a land area total less than , it is no higher than and surrounds a deep central lagoon, in circumference. It is the second-westernmost atoll of the Ralik Chain and is west from Bikini Atoll.
It was held by the Japanese from 1914 until its capture by the United States in February 1944, during World War II, then became Naval Base Eniwetok. Nuclear testing by the US totaling the equivalent of over 30 megatons of TNT took place during the Cold War; in 1977–1980, a concrete dome (the Runit Dome) was built on Runit Island to deposit radioactive soil and debris.
The Runit Dome is deteriorating and could be breached by a typhoon, though the sediments in the lagoon are even more radioactive than those which are contained.
The U.S. government referred to the atoll as "Eniwetok" until 1974, when it changed its official spelling to "Enewetak" (along with many other Marshall Islands place names, to more properly reflect their pronunciation by the Marshall Islanders).
Enewetak Atoll formed atop a seamount. The seamount was formed in the late Cretaceous. This seamount is now about below sea level. It is made of basalt, and its depth is due to a general subsidence of the entire region and not because of erosion.
Enewetak has a mean elevation above sea level of .
Humans have inhabited the atoll since about 1,000 B.C.
The islands were first settled by Austronesian islanders.
The first European colonizers to Enewetak, Spanish explorer Álvaro de Saavedra Cerón, arrived on 10 October 1529. He called the island "Los Jardines" (The Gardens). In 1794, sailors aboard the British merchant sloop Walpole called the islands "Brown's Range" (thus, the Japanese name "Brown Atoll").
Official source
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