Kaimondake (開聞岳, Kaimon-dake), or Mount Kaimon, is an undissected[i] volcano – consisting of a basal stratovolcano and a small complex central lava dome[2] – which rises to a height of 924 metres above sea level near the city of Ibusuki in southern Kyūshū, Japan.

Kaimon is located in the south of Kagoshima prefecture, Kyushu and is an important reference point for marine traffic because it is the southernmost prominence of the Satsuma Peninsula.

It was found that there is a sea scarp underground on the south side of the mountain and it was caused by pressure from a submarine landslide before Mt.

[citation needed] The sedimentary layer of ejecta from the eruption at the end of the 7th century is called ao-kora (ao means blue and kora is soil consisting of volcanic ash found in the southern part of the Satsuma Peninsula).

The sedimentary layer of ejecta by the eruption at the end of the 7th century is called murasaki-kora (Murasaki means purple).

[3] The two large eruptions in the historic written record are in 874 CE (Jogan era) and 885 CE (Nin-na era)[2] The complex layered central dome consists of a scoria cone topped by lava flows and ultimately a lava dome which was penetrated by a plug.

Kaimon is a single peak but with summit rocky outcrops that allow views on all sides, such as Lake Ikeda to the north and the Pacific Ocean to the south.