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lunes, 21 de septiembre de 2009

Supereruptions & Supervolcanoes

South America's Altiplano is filled with mega volcanoes, some of which have had supereruptions. Even the Incas were troubled by at least one moderate eruption from this blast zone.

One of North America's great supereruptions came from the Valles Caldera, shown here in a south-looking view. The volcano looks like a giant pockmark in the middle of northern New Mexico. The Rio Grande can be seen to the left of the volcano, wending south through Albuquerque (upper left) in the distance.
Photo credit: NASA World Wind

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