Largest death toll from a geyser eruption

Four people were killed in August 1903 during one of Waimangu's violent eruptions. They were standing 27 m (90 ft) away, but their bodies were found up to 800 m (2,600 ft) away. One was jammed between two rocks, one in a hole in the ground, one suspended in a tree and the fourth on flat ground.

Throughout the world there are around 700 active geysers. They occur in active volcanic regions, where groundwater can circulate deep underground and become superheated by molten magma. Cracks and fissures in the overlying rock allow the superheated water to erupt out of the ground as a geyser.