Vulcanian eruption
A type of volcanic eruption characterized by short, violent, cannon-like explosions of ash and volcanic bombs. Technical term used in volcanology.
A Vulcanian eruption violently ejects volcanic bombs and ash.
From ブルカノ (Vulcano, the Italian island) + 式 (style/type) + 噴火 (eruption). Named after the Vulcano island, where such eruptions were first described.