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San Cristóbal   »  Summary

San Cristóbal

San Cristóbal Photo

Country:Ecuador
Subregion Name:Galápagos Islands
Volcano Number:1503-12-
Volcano Type: Shield volcano
Volcano Status:Holocene
Last Known Eruption: Unknown
Summit Elevation: 759 m 2,490 feet
Latitude: 0.88°S 0°53'0"S
Longitude: 89.50°W 89°30'0"W

San Cristóbal Island consists of a densely vegetated western part and a lower, younger eastern part with many extremely youthful lava flows. The SW-side shield volcano morphologically resembles low-angle Hawaiian shields more than the steep-sided shields of Fernandina and Isabela Island. Most lava flows on the NE part of the island originated from SW-NE-trending fissures. Young lava flows have reached the sea, where some littoral cones formed. The latest eruptions were prehistorical in age, but are probably less than 1000 years old. Kicker Rock, two paired, steep-cliffed islands separated by a narrow cleft, is an enroded remnant of a tuff cone that forms one of the scenic highlights of the Galápagos, 5 km off the west coast of San Cristóbal.

Global Volcanism ProgramDepartment of Mineral SciencesNational Museum of Natural HistorySmithsonian Institution

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