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Poluwat

Poluwat, also known as Polowat or Puluwat, is a coral atoll and municipality in the northwestern part of Chuuk State, Federated States of Micronesia.

Last updated August 26, 2026

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Overview

Poluwat is a small coral atoll and municipality in the western Pattiw region of Chuuk State in the Federated States of Micronesia. It is also referred to as Polowat and, historically, Puluwat. The atoll lies in the northwestern part of Chuuk State and includes five islets positioned around the rim of a relatively small lagoon: Poluwat, Alengelap, To, Alei, and Haw. The aggregate land area is approximately 3.4 square kilometres, while the atoll’s total area, including its reef and lagoon, is about 7 square kilometres. Poluwat and Alei are the two largest islands. Breadfruit trees grow inland, while coconut palms are concentrated near the shorelines. The smaller rim islets are more rocky and wooded and support fewer coconut palms. Alei, together with Poluwat Atoll, represents the westernmost land area of Chuuk State. Three villages—Relong, Lukaf, and Rewow—are located on the western, lagoon-facing side of Poluwat Island. The 2000 census recorded a combined population of 1,015 for these villages. The atoll is part of a wider submarine reef and bank system. Uranie Bank extends roughly 26 kilometres southeast from Poluwat and has recorded depths ranging from approximately 11 to 61 metres. Enderby Bank, a coral feature with a depth of about 16 metres, lies around 5 kilometres west-northwest of Alei. These submerged features may form part of a larger, mostly submerged atoll structure. European records identify the atoll’s discovery by the Spanish naval officer Juan Antonio de Ibargoitia, commanding the vessel Filipino, on 7 April 1801. During the Second World War, Poluwat was occupied by Japanese forces. The garrison included personnel from both the Imperial Japanese Army and Imperial Japanese Navy. Severe shortages of food, illness, and wartime isolation caused substantial loss of life among the Japanese troops. Remains of the wartime occupation include defensive bunkers, other military relics, a Japanese lighthouse, and the wreck of a ship damaged by American aircraft. A World War II American aircraft also lies in the larger lagoon. The Japanese lighthouse, a roughly 40-metre-high white concrete tower on the northwestern end of Alei, is listed on the United States National Register of Historic Places. Modern communications include a radio station on Poluwat. The place is principally a geographic, municipal, cultural, and historical entity rather than a commercial brand; consequently, it has no known corporate owner, product portfolio, commercial headquarters, public listing, or brand-management structure.

History

Poluwat is a coral atoll in the northwestern region of Chuuk State, within the western Pattiw area. Its name is also rendered as Polowat, while Puluwat is an older form associated with the local linguistic tradition. The name is traced to the Proto-Chuukic form *pʷolowado. The atoll consists of five islets arranged around the reef rim. Poluwat lies on the eastern side, Alengelap and To occupy the northern rim, Alei forms the western side, and Haw marks the southern corner. The main islands contain breadfruit and coconut palms, while the smaller islets are comparatively rocky and wooded. The three principal villages of Poluwat Island—Relong, Lukaf, and Rewow—face the lagoon on the western side. In the 2000 census, these villages had a combined population of 1,015. Poluwat’s physical setting extends beyond the visible islands. Uranie Bank runs southeast from the atoll for approximately 26 kilometres, and Enderby Bank lies to the west-northwest of Alei. Their shallow depths indicate the presence of submerged coral structures around the atoll. Poluwat and Alei are the westernmost land features of Chuuk State. A Spanish naval expedition recorded the atoll on 7 April 1801, when Juan Antonio de Ibargoitia commanded the vessel Filipino. The most consequential later historical period was the Japanese occupation during the Second World War. Japanese military personnel from the Imperial Japanese Army and Navy were stationed on the atoll. Because of isolation and inadequate food supplies, many members of the garrison died from starvation and disease. Some army units were transferred to Truk, but hundreds of army and naval personnel still died on or around the island. Physical traces of the wartime period remain visible, particularly on Alei. These include Japanese bunkers, scattered military remains, a damaged and stranded ship, and a tall white concrete lighthouse on the island’s northwestern end. The lighthouse is recognized on the United States National Register of Historic Places. A World War II American aircraft remains underwater in the larger lagoon. Poluwat also has a radio station, providing an important communications link for the remote municipality. As a geographic entity, Poluwat does not have a conventional commercial history. Its significance derives from its island communities, traditional Micronesian environment, maritime geography, and wartime archaeological remains rather than from products, corporate ownership, or market activity.

  • 1941

    Japanese wartime occupation

    [1]

    Poluwat was occupied by Japanese Army and Navy personnel during the Second World War. Food shortages, illness, and isolation caused extensive deaths among the garrison.

  • 1801

    Spanish discovery recorded

    [1]

    Spanish naval officer Juan Antonio de Ibargoitia, commanding the vessel Filipino, recorded Poluwat on 7 April 1801.

  • Japanese lighthouse recognized as historic property

    [1]

    The approximately 40-metre-high Japanese lighthouse on the northwestern end of Alei is listed on the United States National Register of Historic Places.

Products and positioning

A remote Micronesian coral atoll and municipality known for its reef geography, island communities, maritime setting, and World War II heritage.

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