noun
parasitic volcano; lateral volcano
A smaller volcanic vent or cone on the flank of a larger volcano, formed by eruptions branching off from the main conduit. Used in geology and volcanology.
富士山には多くの側火山が存在する。
Mount Fuji has many parasitic volcanoes.
側火山の活動は本火山の噴火と関連していることが多い。
Activity of parasitic volcanoes is often related to eruptions of the main volcano.
The main volcano on which a 側火山 forms. Contrasts with the smaller lateral vent.
Compound of 側 (そく, 'side') + 火山 (かざん, 'volcano'). The reading そっかざん results from a regular sound change (sokuon) when 側 is combined with 火山.