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Global Volcanism Program | Image GVP-10014

Gas and steam emit from fumaroles on the sulfur-encrusted crater wall of Popocatépetl seen here in 1993, prior to the eruptive activity that began in December 1994. The east floor of the crater contained a smaller circular crater about 200 m in diameter and 50 m deep. A small lake about 40 m in diameter and 10 m deep, which varied in size seasonally, contained warm water (29°C) in 1986. By February 1994 the lake temperature had risen to 65°C. Photo by Hugo Delgado-Granados, 1993 (Universidad Nacional Autónoma de México).

Gas and steam emit from fumaroles on the sulfur-encrusted crater wall of Popocatépetl seen here in 1993, prior to the eruptive activity that began in December 1994. The east floor of the crater contained a smaller circular crater about 200 m in diameter and 50 m deep. A small lake about 40 m in diameter and 10 m deep, which varied in size seasonally, contained warm water (29°C) in 1986. By February 1994 the lake temperature had risen to 65°C.

Photo by Hugo Delgado-Granados, 1993 (Universidad Nacional Autónoma de México).

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Keywords: crater | mineral deposits | sulfur | crater lake | emissions | gas | geothermal | fumarole


Popocatépetl