Fissure vent

linear volcanic vent through which lava erupts

A fissure vent, also known as a volcanic fissure or eruption fissure, is a kind of volcano through which lava erupts.[1] The crack is usually linear (follows a fairly straight line).[2] It is often a few meters wide and may be many kilometers long. Fissure vents can cause large flood of lava and later lava tubes. After some time the eruption cools down gradually and builds up craters.[3]

This lava flow was erupted from a fissure vent


  1. "Fissure Vent Volcano". Bioexpedition. Retrieved 28 March 2015.
  2. Studies in Volcanology: The Legacy of George Walker, ed. Thor Thordarson (London: Geological Society, 2009), p. 299
  3. "Fissure Vents". Smithsonian Institution. Retrieved 28 March 2015.