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Réf : S14352
Thème :
Terre vue de l'espace - Volcans (181 images)
Titre : Volcano Unrest in the Cascades
Description : (La description de cette image n'existe qu'en anglais)
The ground near one of the long-dormant Three Sisters volcanoes in the Cascade Mountains of west-central Oregon has risen approximately 10 centimeters in a 10-by-20-km parcel since 1996, meaning that magma or underground lava is slowly flowing into the area, according to a research team from the U.S. Geological Survey. The Three Sisters area -- which contains five volcanoes -- is only about 170 miles from Mount St. Helens, which erupted in 1980. Both are part of the Cascades Range, a line of 27 volcanoes stretching from British Columbia in Canada to northern California. This perspective view was created by draping a simulated natural color image over digital topography from the U.S. Geological Survey National Elevation Dataset.
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