Marchena Volcano
Updated: May 21, 2024 10:29 GMT -
Shield volcano 343 m / 1,125 ft
Galápagos Islands, Ecuador, 0.33°N / -90.47°W
Current status: normal or dormant (1 out of 5)
Galápagos Islands, Ecuador, 0.33°N / -90.47°W
Current status: normal or dormant (1 out of 5)
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Marchena volcano eruptions: 1991
Latest nearby earthquakes
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Background
The low shield volcano forming Marchena Island contains one of the largest calderas of the Galápagos Islands. In contrast to other Galápagos volcanoes, the 6 x 7 km caldera and its outer flanks have been largely buried by a cluster of pyroclastic cones and associated lava flows. Its first historical eruption occurred in 1991. Other young lava flows, some of which may be only a few thousand, or even a few hundred years old, filled the caldera and flowed down its outer forested flanks, in some cases to the sea.---
Smithsonian / GVP volcano information
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