Photoglossary

Pit crater

Pit craters are circular-shaped craters formed by the sinking or collapse of the ground as a consequence of the removal of support by withdrawal of underlying magma. They are common along rift zones of shield volcanoes; for example, Mauna Loa and Kilauea volcanoes in Hawaii.

Pit crater at Erta Ale, Ethiopia, 2002. Photo: M. Fulle

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