12 November -18 November 2008
New Activity/Unrest:
- Akan, Hokkaido
- Barren Island, Andaman Is
- Dalaffilla, Northeastern Africa
- Nevado del Huila, Colombia
- Reventador, Ecuador
AKAN
Country: Japan
Region : Hokkaido
Volcano Type: Caldera
Last Known Eruption: 2006
Summit Elevation: 1499 m
Latitude: 43.384°N 43°23’3″N
Longitude: 144.013°E 144°0’46″E
Akan is a 13 x 24 km, elongated caldera that formed more than 31,500 years ago immediately SW of Kutcharo caldera. Growth of four post-caldera stratovolcanoes, three at the SW end of the caldera and the other at the NE side, has restricted the size of the caldera lake. The 1-km-wide Nakamachineshiri crater was formed during a major pumice-and-scoria eruption about 13,500 years ago. Of the Holocene volcanoes of the Akan volcanic complex, only the Me-Akan group, E of Lake Akan, has been historically active, producing mild phreatic eruptions since the beginning of the 19th century. Me-Akan is composed of 9 overlapping cones. The main cone of Me-Akan proper has a triple crater at its summit. Historical eruptions at Me-Akan have consisted of minor phreatic explosions, but four major magmatic eruptions including pyroclastic flows have occurred during the Holocene. (Akan Information from the Global Volcanism Program). Photo: Wataru Hirose, November 23, 1996 (Hokkaido University).
Ongoing Activity:
- Chaitén, Southern Chile
- Karymsky, Eastern Kamchatka (Russia)
- Kilauea, Hawaii
- Kliuchevskoi, Central Kamchatka
- Popocatépetl, México
- Rabaul, New Britain
- Santa María, Guatemala
- Shiveluch, Central Kamchatka
- Soufrière Hills, Montserrat
- Suwanose-jima, Ryukyu Islands (Japan)
Fire Earth 