Geosite introduction of Aso

7.Kijimadake geosite

Kijimadake geosite

Recent volcanic activity dating back several thousand years

Relatively recent volcanic activity dating back 3,000 to 4,000 years shaped Kijimadake. Like Komezuka, this geosite showcases volcanic forms that have not been weathered by erosion.

Related Geo-points

Mt. Kijimadake

This basalt pyroclastic cone was formed approximately 3,500 years ago. It is a monogenic volcano field (a monogenic volcano erupts only once) with craters at the top as well as to the northwest of the peak and in the eastern foothills. In the base of the eastern crater, which measures 800 m across, are a smaller crater, a flat-topped lava dome, and another pyroclastic cone. A number of young radial valleys are carved into the northwestern side of the mountain, making it an important site for understanding the stages of volcanic erosion.