Global Volcanism Program | Image GVP-09988

San Marcelino scoria cone (center) on the NE flank of Santa Ana was the source of a lava flow that traveled 13 km to the east (left). The 1722 lava flow originated from two vents at the eastern and western sides of San Marcelino. Photo by Lee Siebert, 2002 (Smithsonian Institution).

San Marcelino scoria cone (center) on the NE flank of Santa Ana was the source of a lava flow that traveled 13 km to the east (left). The 1722 lava flow originated from two vents at the eastern and western sides of San Marcelino.

Photo by Lee Siebert, 2002 (Smithsonian Institution).

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Keywords: scoria cone

Santa Ana