Ofu-Olosega

Ofu Olosega

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Ofu-Olosega

Ofu and Olosega are parts of a volcanic doublet in the Manu‘a Group

Manua

American Samoa

American Samoa is an Territories of the United States of the United States located in the South Pacific Ocean, southeast of the sovereign state of Samoa, formerly known as Western Samoa....
. Although geographically separate volcanic remnants, only a narrow strait

Strait

A strait or straits is a narrow, navigable channel of water that connects two larger navigable bodies of water. It most commonly refers to a channel of water that lies between two land masses, but it may also refer to a navigable channel through a body of water that is otherwise not navigable, for example because it is too shallow, or...
(Asaga) naturally bridged by a shallow coral reef

Coral reef

Coral reefs are aragonite structures produced by living organisms. In most reefs the predominant organisms are colonial cnidarian that secrete an exoskeleton of calcium carbonate....
separates them. Before 1970, one had to wade between the two islands at low tide; now a road bridge over the straight connects villages on Ofu with those on Olosega.

is the western part of the volcanic outcrop of Ofu-Olosega Island.

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Encyclopedia

Ofu and Olosega are parts of a volcanic doublet in the Manu‘a Group

Manua

American Samoa

Strait

Coral reef

Ofu

Ofu is the western part of the volcanic outcrop of Ofu-Olosega Island. The main village of Ofu

Ofu

Ofu may refer to*Ofu , an island and its village in Vava'u in Tonga*Ofu-Olosega, an island in the Manu'a group in American Samoa*Ofu, Nigeria, a town and Local Government Area in Kogi State, Nigeria...
is located on the western shore, protected behind an offshore islet (eroded tuff cone) known as Nu‘utele. Ofu has a small airport

Ofu Airport

Ofu Airport is a public airport located one mile southeast of the village of Ofu on the island of Ofu-Olosega in American Samoa, an unincorporated territory of the United States....
and a boat harbor that serve the population on Ofu and Olosega.

Most of the southern shore and associated coral reef are part of the National Park of American Samoa

National Park of American Samoa

The National Park of American Samoa is a U.S. national park on the American territory of American Samoa, distributed across three separate islands: Tutuila, Ofu-Olosega, and Tau, Samoa....
. The U.S. National Park Service

National Park Service

The National Park Service is the List of United States federal agencies that manages all List of areas in the United States National Park System, many U.S....
is presently (2005) negotiating with village councils on Olosega to expand the park around that island.

The island forms the Ofu County subdivision of the Manua District

Manua

United States Census, 2000

File:US-Census-2000Logo.svgThe Twenty-Second United States Census, known as Census 2000 and conducted by the United States Census Bureau, determined the resident population of the United States on April 1, 2000, to be 281,421,906, an increase of 13.2% over the 248,709,873 persons Enumeration during the United States Census, 1990....
.

Olosega

Olosega Island is a remnant of the Sili shield volcano

Shield volcano

A shield volcano is a large volcano with shallow-sloping sides. The name derives from a translation of "Skjaldbrei?ur", an Icelandic shield volcano whose name means "broad shield", from its resemblance to a warrior's shield....
, the caldera

Caldera

A caldera is a cauldron-like volcano feature usually formed by the collapse of land following a volcanic eruption such as the one at Yellowstone National Park....
of which may lie submerged off the north shore. The undersea eruption of 1866 was actually 3 km east of Olosega, on a submarine ridge that extends eastsoutheast to nearby Ta‘u.

The island forms the Olosega County subdivision of the Manua District

Manua

Manua or the Manua Islands Group consists of three main islands: Tau, Samoa, Ofu-Olosega and Ofu-Olosega. These idylic tropical islands are located some 110 km east of Tutuila and are a part of American Samoa....
. It has a land area of 5.163 km² (1.993 sq mi), and had an official population of 216 persons as of the 2000 census.

There are two villages on Olosega: Olosega and Sili. Sili now consists of but one standing residence after much of the village was destroyed by hurricanes (and subsequently abandoned). Nearly all of the population of Olosega now resides in Olosega village along the southwestern-facing shore.

External links

G. Piniak, C. Birkeland, and G. Garrison (2004). University of Hawaii.