Agrihan

Agrigan
NASA Space Shuttle image of Agrihan island.
Elevation	965 m (3,166 ft)[1]
Location
Agrigan Mariana Islands
Coordinates	18°46′0″N 145°40′0″E / 18.766667°N 145.666667°E / 18.766667; 145.666667Coordinates: 18°46′0″N 145°40′0″E / 18.766667°N 145.666667°E / 18.766667; 145.666667[1]
Geology
Type	Stratovolcano
Last eruption	1917[1]

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 meters (13,120 ft) from the ocean floor, and is the fifth largest in the Marianas volcanic arc. At 965 m (3,166 ft), its summit is the highest point in Micronesia. The volcano is topped by a large caldera, 1 x 2 km (0.6 x 1.2 mi) in size and about 500 m (1,640 ft) deep.^[1]

The island was evacuated in 1990 due to the threat of volcanic activity, although in the end no eruption occurred. A settlement was reestablished in one of the four original villages, and as of September 2005 there were nine inhabitants. Five years later, in the 2010 census no population was reported. The island has a total land area of 43.51 km² (16.80 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.

See also

• List of stratovolcanoes

References

• Oceandots.com: Agrihan

External links

• Pascal Horst Lehne and Christoph Gäbler: Über die Marianen. Lehne-Verlag, Wohldorf in Germany 1972.
• Marianas Archipelago Reef Assessment and Monitoring Program

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