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Global Volcanism Program | Image GVP-07897

Spectacular grooved lava surfaces were formed when still-fluid lava was squeezed through an irregular crack in previously solidified crust.  Note the rock hammer at the right-center for scale.  Frequent lava extrusion has occurred at Pacaya since 1965. Photo by Bill Rose, 1978 (Michigan Technological University).

Spectacular grooved lava surfaces were formed when still-fluid lava was squeezed through an irregular crack in previously solidified crust. Note the rock hammer at the right-center for scale. Frequent lava extrusion has occurred at Pacaya since 1965.

Photo by Bill Rose, 1978 (Michigan Technological University).


Pacaya