Mount Oakan
Stratovolcano/Lava dome on the island of Hokkaido, Japan
title: "Mount Oakan" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["mountains-of-hokkaido", "volcanoes-of-hokkaido"] description: "Stratovolcano/Lava dome on the island of Hokkaido, Japan" topic_path: "general/mountains-of-hokkaido" source: "https://en.wikipedia.org/wiki/Mount_Oakan" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Stratovolcano/Lava dome on the island of Hokkaido, Japan ::
::data[format=table title="Infobox mountain"]
| Field | Value |
|---|---|
| name | Mount Oakan |
| native_name | ja |
| photo | Oakan and Akanko DSCN2497 20060805.JPG |
| photo_caption | Seen from the WSW |
| elevation_m | 1370.4 |
| listing | List of mountains and hills of Japan by height |
| location | Hokkaidō, Japan |
| range | Akan Volcanic Complex |
| coordinates | |
| topo | Geographical Survey Institute 25000:1 雄阿寒岳 |
| 50000:1 阿寒湖 | |
| map | Japan#Japan Hokkaido |
| type | Stratovolcano, Lava dome |
| age | Late Pleistocene-Holocene |
| volcanic_arc | Kuril arc |
| last_eruption | 2008 |
| :: |
| name = Mount Oakan | native_name =ja | photo = Oakan and Akanko DSCN2497 20060805.JPG | photo_caption = Seen from the WSW | elevation_m = 1370.4 | elevation_ref = | prominence = | listing = List of mountains and hills of Japan by height | location = Hokkaidō, Japan | range = Akan Volcanic Complex | coordinates = | topo = Geographical Survey Institute 25000:1 雄阿寒岳 50000:1 阿寒湖 | map = Japan#Japan Hokkaido | type = Stratovolcano, Lava dome | age = Late Pleistocene-Holocene | volcanic_arc = Kuril arc | last_eruption = 2008 | first_ascent = | easiest_route = Mount Oakan is a stratovolcano located in Akan National Park in Hokkaidō, Japan.
Geography and geology
Mount Oakan sits in the Akan caldera northeast of Lake Akan. The volcano rises some 900 m above the surrounding terrain. The top of the volcano is 1370 m above sea level. The volcanic cone is some 8 km in diameter. There are three explosion craters at the summit. At Kitanakahara at about 800 m, there is a fumarole. The volcano is made mostly from non-alkali mafic volcanic rock. The main rock type is andesite and dacite. ::figure[src="https://upload.wikimedia.org/wikipedia/commons/7/73/Oakan.JPG" caption="View from the [[Siberian dwarf pine]] zone on Mount Oakan, looking toward [[Mount Meakan]]. (July 2008)"] ::
History
Mount Oakan emerged in the Late Pleistocene dropping pumice on Minamishikata. After that, continuous lava flows formed the bulk of the volcano. In the final stages of its life, a parasitic volcano formed a lava dome at the summit.
According to its name and local legend, Mount Oakan is the male counterpart to Mount Meakan on the other side of Lake Akan.
Notes
References
- link. Saitō. Hiroshi. (1996). 新版 地学事典. 平凡社. (February 2018)
- Hunt, Paul. (1988). "Hiking in Japan: An Adventurer's Guide to the Mountain Trails". Kodansha International.
::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::