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Volcanic Eruptions in Kamchatka

Volcanic Eruptions in Kamchatka
One of the most volcanically active regions of the world is the Kamchatka Peninsula in eastern Siberia, where it is not uncommon for several volcanoes to be erupting at the same time. On April 26, 2007, the Advanced Spaceborne Thermal Emission and Reflection Radioneter (ASTER) on NASA's Terra spacecraft captured these images.

One of the most volcanically active regions of the world is the Kamchatka Peninsula in eastern Siberia, where it is not uncommon for several volcanoes to be erupting at the same time. On April 26, 2007, the Advanced Spaceborne Thermal Emission and Reflection Radioneter (ASTER) on NASA’s Terra spacecraft captured these images of the Klyuchevskoy (on the right) and Sheveluch stratovolcanoes, erupting simultaneously 80 kilometers (50 miles) apart.
Over Klyuchevskoy, the thermal infrared data (overlaid in red) indicates that two open-channel lava flows are descending the northwest flank of the volcano. Also visible is an ash-and-water plume extending to the east. Sheveluch volcano is partially cloud-covered. The hot flows highlighted in red come from a lava dome at the summit. They are avalanches of material from the dome, as wel as pyroclastic flows.
With its 14 spectral bands from the visible to the thermal infrared wavelength region, and its high spatial resolution of 15 to 90 meters (about 50 to 300 feet), ASTER images Earth to map and monitor the changing surface of our planet.
ASTER is one of five Earth-observing instruments launched Dec. 18, 1999, on NASA’s Terra spacecraft.Image credit: NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team