A fissure eruption on a volcano in Iceland. The lava flows downhill and turns snow into steam. Iceland is made of a set of volcanoes that are the result of a hotspot that lies on a mid-ocean ridge. The island is the only location where the mid-ocean ridge can be seen above sea level. Icelandic volcanoes have made the news lately since some have shut down air traffic in parts of Europe.
User:Boaworm/Wikimedia Commons. commons.wikimedia.org/wiki/File:Fimmvorduhals_second_fissure_2010_04_02.JPG. CC BY 3.0.