割われ目め噴ふん火か

noun

fissure eruption

A volcanic eruption occurring along a linear fracture or crack in the earth's surface, rather than from a central vent. Technical term used in geology and volcanology.

• アイスランドでは割われ目め噴ふん火かがよく見みられる。

  Fissure eruptions are often observed in Iceland.