Agrihan

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Agrigan

NASA Space Shuttle image of Agrihan island.
Elevation 965 m (3,166 ft)
Location Mariana Islands
Coordinates 18°46′N 145°40′ECoordinates: 18°46′N 145°40′E
Type Stratovolcano
Last eruption 1917

Agrihan (also spelled Agrigan) is a stratovolcano which forms an island in the Northern Mariana Islands in the Pacific Ocean. The entire island is a massive volcano which rises over 4,000 m (13,000 ft) from the ocean floor, and is the second largest in the Marianas volcanic arc. At 965 m (3,166 ft), its summit is the highest point in the Marianas. The volcano is topped by a large caldera, 1 x 2 km (0.6 x 1.2 mi) in size and about 500 m (1,600 ft) deep.

The island was evacuated in 1990 due to the threat of volcanic activity, although in the end no eruption occurred. A settlement has since been reestablished in one of the four original villages, and as of September 2005 there were nine inhabitants. Five years earlier, in the 2000 census no population was reported. The island has a total land area of 7.31 km² (2.82 sq mi). Politically it is part of the Northern Islands Municipality.

Clouds drape the flat-topped summit of Agrihan, the highest of the Marianas arc volcanoes, in this view from the south.
Clouds drape the flat-topped summit of Agrihan, the highest of the Marianas arc volcanoes, in this view from the south.


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