Abu (volcano)

Abu (Abu Volcano Group)
阿武火山群
Highest point
Elevation	641 m (2,103 ft) [1]
Listing	List of volcanoes in Japan
Coordinates	[ ⚑ ] : 34°30′N 131°36′E / 34.5°N 131.6°E / 34.5; 131.6 [1]
Geography
Abu (Abu Volcano Group) Honshu, Japan
Geology
Age of rock	800,000 years[1]
Mountain type	Monogenetic volcanic field
Last eruption	6850 BCE[1]

Abu (阿武火山群, Abu Kazan-gun) is the name of a group of shield volcanoes located on the coast of Japan on the southwest end of the island of Honshū. It is primarily based in the city of Hagi, Yamaguchi Prefecture.

The group dates from 800,000 years ago and was active into the Holocene era. The last eruption occurred around 9000 years ago.

The group of volcanoes consists of basalt and dacitic lava flows, small shield volcanoes, cinder cones, and lava domes. Altogether, there are about 40 volcanoes, with the highest peak being Irao-yama.

Volcanic activity in the region is related to subduction of the Philippine Sea Plate.

The erupted magmas of Abu are mainly alkaline basalt and calc-alkaline andesite - dacite in composition.^[2]

See also

• List of volcanoes in Japan
• List of mountains in Japan

References

External links

• Abu Volcanoes - Japan Meteorological Agency (in Japanese)
• "Abu Volcanoes: National catalogue of the active volcanoes in Japan". http://www.data.jma.go.jp/svd/vois/data/tokyo/STOCK/souran_eng/volcanoes/080_abu_volcanoes.pdf.  - Japan Meteorological Agency
• Abu - Smithsonian Institution: Global Volcanism Program

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