Global Volcanism Program | Image GVP-07068

Geologists stand on the margin of a pyroclastic flow deposit from an eruption of Arenal in 1993. In addition to the devastating pyroclastic flows accompanying the start of the eruption in July 1968, more frequent pyroclastic flows occurred in 1975, 1987, 1993, and 1998. Photo by Guillermo Alvarado, 1993 (Instituto Costarricense de Electricidad).

Geologists stand on the margin of a pyroclastic flow deposit from an eruption of Arenal in 1993. In addition to the devastating pyroclastic flows accompanying the start of the eruption in July 1968, more frequent pyroclastic flows occurred in 1975, 1987, 1993, and 1998.

Photo by Guillermo Alvarado, 1993 (Instituto Costarricense de Electricidad).

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Keywords: deposit | pyroclastic flow | pyroclastic density current (PDC) | volcanologist | field work

Arenal