Nick Turner / Tourists watching Mount Yasur erupt at dusk, Tanna, Vanuatu Aug-04

Nick Turner / Tourists watching Mount Yasur erupt at dusk, Tanna, Vanuatu Aug-04

Nick Turner / Tourists watching Mount Yasur erupt at dusk, Tanna, Vanuatu Aug-04

Doug Perrine / Palm trees in Leilani Community Park, silhouetted against the glow from fountaining lava at fissure 8, Kilauea Volcano, Leilani Estates subdivision, near Pahoa, Puna District, Hawaii. June 2018.

Doug Perrine / Lava from Kilauea Volcano erupts from a fissure in Kapoho, Puna District, near Pahoa, Hawaii. June 2018.

Doug Perrine / River of lava entering the ocean at dusk. Ahalanui, Kapoho, Hawaii. This lava erupted from fissure 8 of the Kilauea Volcano, near Pahoa, Hawaii. June 2018.

Doug Perrine / Lava erupting from fissure 8 of the Kilauea Volcano, in Leilani Estates, near Pahoa, Hawaii. Here a river of lava flows through what was formerly a Papaya orchard in Kapoho, lower Puna District, Hawa...

Doug Perrine / 'Lava boat' or 'Lavaberg' (large chunk of partially hardened lava) floats down the lava river flowing through Kapoho, from Fissure 8 of the Kilauea Volcano, Puna District, Hawaii. June 2018.

Doug Perrine / 'Lava boat' or 'Lavaberg' (large chunk of partially hardened lava) floats down the lava river flowing through Kapoho, from Fissure 8 of the Kilauea Volcano, Puna District, Hawaii. June 2018.

Doug Perrine / Lava erupting from fissure 8 of the Kilauea Volcano, near Pahoa, flowing through what was formerly a papaya orchard in Kapoho, lower Puna District, Hawaii. June 2018.

Doug Perrine / River of lava erupting from fissure 8 of the Kilauea Volcano, near Pahoa, flowing through Kapoho, Puna District, Hawaii June 2018.

Doug Perrine / A'a lava flowing over land, where it has pushed down a house and set it on fire. The lava originated from Pu'u O'o, Kilauea Volcano, from a fissure in Leilani Estates, near Pahoa, Puna, Hawaii, USA....

Doug Perrine / A'a lava which originated from Pu'u O'o, Kilauea Volcano, from a fissure in Leilani Estates, near Pahoa, Puna, Hawaii, USA. June 2018.

Cyril Ruoso / The Great Geysir starting to erupt, Haukadalur, Iceland, August 2003.

Charlie Summers / Strokkur Geyser just starting to erupt as the air bubble dome ruptures, Iceland, May 2014.

Guy Edwardes / Strokkur geyser about to erupt, Geysir, Haukadalur, Iceland. July 2009

Inaki Relanzon / The Strokkur about to erupt, the biggest geyser active in the Geysir area, SW Iceland. July 2008

Bryan and Cherry Alexander / Tourists watching the Fountain Paint Pot Geyser erupt. Yellowstone National Park, USA.