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Random pictures

Marchena volcano

Shield volcano 343 m / 1,125 ft
Galápagos Islands, Ecuador, 0.33°N / -90.47°W
Current status: dormant (1 out of 5)
Marchena volcano books
Typical eruption style: unspecified
Marchena volcano eruptions: 1991 No recent earthquakes
TimeMag. / DepthDistanceLocation

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.
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Smithsonian / GVP volcano information


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