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Akagi volcanstratovolcan 1828 m / 5,997 ft
Honshu, Japon, 36.56°N / 139.2°E Condition actuelle: en sommeil (1 sur 5)
Style éruptif tipique: Explosive
Eruptions du volcan Akagi: probably no recent eruptions uncertain eruption reports in 1938 and 1251 Derniers séismes proches:
Introduction:from: Smithsonian / GVP volcano informationThe broad, low dominantly andesitic Akagi volcano rises above the northern end of the Kanto Plain. It contains an elliptical, 3 x 4 km summit caldera with post-caldera lava domes arranged along a NW-SE line. Lake Ono is located at the NE end of the caldera. An older stratovolcano was partially destroyed by edifice collapse, producing a debris-avalanche deposit along the south flank. A series of large plinian eruptions accompanied growth of a second stratovolcano during the Pleistocene. Construction of the central cone in the late-Pleistocene summit caldera began following the last of the plinian eruptions about 31,000 years ago. During historical time unusual activity was recorded on several occasions during the 9th century, but reported eruptions in 1251 and 1938 are considered uncertain. |
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