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A vertical photograph of La Cumbre volcano on Fernandina
Island. This was taken by the US Air Force in 1946 from an elevation
of about 10,000 feet. Note that the caldera of the volcano has a
lake in it. Air photographs taken later show that this lake disappeared
sometime before 1960. Fernandina is the youngest island in the Galapagos
Islands. There have been many eruptions over the last 50 years.
Eruptions took place in 1959, 1968, 1982, 1988, and the most recent
one occurred in 1995. These eruptions have greatly modified the
shape and depth of the summit caldera. The 1968 eruption caused
the caldera to subside, or sink, about 300 meters. The lighter patches
in the photo are areas of older lava with more vegetation. The darker
areas that form linear stripes coming out from the caldera are younger
lava flows.
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