Eruption and lava flow from the Monti Calcarazzi fissure on the southern flank of Mt Etna in 2001, the flow threatened the town of Nicolosi below, Mt Etna, Sicily, Italy

Eruption and lava flow from the Monti Calcarazzi fissure on the southern flank of Mt Etna in 2001, This flow threatened the town of Nicolosi, Sicily, Italy

Eruptions at the Monti Calcarazzi fissure and the Piano del Lago cone, above, on Mount Etna that threatened tourist facilities and villages in 2001, Sicily, Italy, Europe

January 24, 2012 - Lava in crater glowing during blue hour on Nyamuragira Volcano, Kimanura Eruption.

January 22, 2012 - Glowing lava in crater illuminating gas cloud above Nyamuragira Volcano, Kimanura Eruption.

January 24, 2012 - Incandescent lava bombs expelled during a basaltic fissure eruption on Nyamuragira Volcano, Kimanura Eruption.

January 23, 2012 - Incandescent lava bombs expelled during a basaltic fissure eruption on Nyamuragira Volcano, Kimanura Eruption.

November 2007 - Aerial view of 1886 basaltic plinian eruption fissure in rhyolite dome complex, Mount Tarawera volcano, New Zealand.

November 2007 - Aerial view of 1886 basaltic plinian eruption fissure in rhyolite dome complex, Mount Tarawera volcano, New Zealand.

Grabrokarfell a crater caused by a fissure eruption near Reykholt in Iceland, Polar Regions

Grabrok volcanic crater caused by a fissure eruption in Western Iceland near Reykholt, Iceland, Polar Regions

Grabrokarfell a crater caused by a fissure eruption near Reykholt in Iceland, Polar Regions

Kilauea Eruption 2018

The Giant's Causeway is an area of about 40,000 interlocking basalt columns, the result of an ancient volcanic fissure eruption, Northern Ireland, Bushmills, Ireland

Volcanic Activity