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• File:Sarychev_Volcano.jpg licensed with PD-USGov-NASA
  • 2009-06-26T18:01:12Z TonyBallioni 4288x2840 (627136 Bytes) {{Information |Description={{en|1=A picture of Russia's Sarychev Volcano, located in the Kuril Islands, erupting, ass seen from the International Space Station}} |Source=https://www.nasa.gov/multimedia/imagegallery/image_featu

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Čeština: Erupce sopky Saryčeva na ostrově Matua v Kurilských ostrovech. Fotografováno 12. června 2009 z Mezinárodní vesmírné stanice. Deutsch: Eruption des Vulkans Sarytschew am 12. Juni 2009. A picture of Russia's Sarychev Volcano, on Matua Island in the Kuril Islands, erupting on 12 June 2009, as seen from the International Space Station (ISS). The ISS orbits the Earth at a height of between 347 and 360 km. Original description by NASA: "A fortuitous orbit of the International Space Station allowed the astronauts this striking view of Sarychev volcano (Russia’s Kuril Islands, northeast of Japan) in an early stage of eruption on June 12, 2009. Sarychev Peak is one of the most active volcanoes in the Kuril Island chain and is located on the northwestern end of Matua Island. "Prior to June 12, the last explosive eruption had occurred in 1989 with eruptions in 1986, 1976, 1954 and 1946 also producing lava flows. Commercial airline flights were diverted from the region to minimize the danger of engine failures from ash intake. This detailed photograph is exciting to volcanologists because it captures several phenomena that occur during the earliest stages of an explosive volcanic eruption. "The main column is one of a series of plumes that rose above Matua Island (48.1 degrees north latitude and 153.2 degrees east longitude) on June 12. The plume appears to be a combination of brown ash and white steam. The vigorously rising plume gives the steam a bubble-like appearance; the surrounding atmosphere has been shoved up by the shock wave of the eruption. The smooth white cloud on top may be water condensation that resulted from rapid rising and cooling of the air mass above the ash column, and is probably a transient feature (the eruption plume is starting to punch through). The structure also indicates that little to no shearing winds were present at the time to disrupt the plume. By contrast, a cloud of denser, gray ash -- most probably a pyroclastic flow -- appears to