Feb 2011 Pyroclastic Flow Remnants at Shiveluch Volcano
Autor:
Robert Simmon (using data from the NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team.)
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2523 x 3157 Pixel (2979868 Bytes)
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Shiveluch Volcano at Russia’s Kamchatka Peninsula on 25-02-2011, as recorded in false-color by Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite. Remnants of a large pyroclastic flow is seen on its slopes. ASTER detected heat from the flow during or shortly after an event on 25-01-2011. Note how the heat signatures from January line up with the dark surface deposits visible on February 25; those deposits cover more than 10 square kilometers (4 square miles). Light brown ash covers the snow above the flow deposits, and a tiny plume rises from Shiveluch’s growing lava dome. Vegetation surrounding the volcano is colored dark red.
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Public domain
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