Azuma-Kofuji
| Azuma-Kofuji | ||
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 Azuma-Kofuji, May 2007. |
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| height | 1707 m | |
| location | Honshū , Japan | |
| Coordinates | 37 ° 43 '48 " N , 140 ° 15' 0" E | |
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| Type | Stratovolcano | |
| Last eruption | 1977 | |
The Azuma-Kofuji ( Japanese 吾 妻 小 富士 ) is a volcanic mountain with a caldera west of the city of Fukushima . The height is given as 1707 meters.
Kofuji means "little Fuji". The mountain is part of a volcanic group, which consists of several andesitic and basaltic stratovolcanoes , shield volcanoes , ash cones and lava domes and can be seen impressively from the city of Fukushima. The highest point of the volcanic group is at 2035 meters. There are several crater lakes in the Azuma volcanic complex . The historically known eruptions, mostly small phreatic explosions , took place in the area of the Issaikyo crater at the northern end of the volcanic group.
Volcanic activity creates a strong sulphurous smell near the mountain. Many onsen , hot springs that can be found in lower elevations around the mountain, also have this typical smell. Examples of nearby onsen are Takayu-Onsen, Noji-Onsen, Akayu-Onsen, Tsuchiyu-Onsen.
Known eruptions dated using the radiocarbon method : 5700 BC BC (output of 2 million cubic meters of tephra), 5400 BC. BC (output of 800,000 cubic meters of tephra), 3000 BC BC (emissions of 500,000 cubic meters of tephra), 2750 BC Chr., 1800 BC BC, 950 BC BC, 150 BC And in the year 600. Historical records show further eruptions in 1331, 1711, 1800, May 19 to July 13, 1893, November 9 to 10, 1893, March 16 to April 12, 1894, March 8 to 13. September 1895, February 10 to 19, 1950 and December 7, 1977.
Web links
- Azuma-Kofuji in the Global Volcanism Program of the Smithsonian Institution (English)
- Azuma Yama in the Japanese Volcanoes Quaternary database (English and Japanese)