Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2018, Vol. 15, No. 3, pp. 88-99
Bezymianny volcano eruption on December 20, 2017
O.A. Girina
1 , E.A. Loupian
2 , D.V. Melnikov
1 , A.G. Manevich
1 , A.А. Sorokin
3 , L.S. Kramareva
4 , I.A. Uvarov
2 , A.V. Kashnitskiy
2 1 Institute of Volcanology and Seismology FEB RAS, Petropavlovsk-Kamchatskiy, Russia
2 Space Research Institute RAS, Moscow, Russia
3 Computing Center FEB RAS, Khabarovsk, Russia
4 Far Eastern Center of Planeta Research Center for Space Hydrometeorology, Khabarovsk, Russia
Accepted: 18.05.2018
DOI: 10.21046/2070-7401-2018-15-3-88-99
Bezymianny is one of the most active volcanoes in Kamchatka and the world. The intensification of its activity began in December 2016 after four years of silence during 2012–2016. There were three paroxysmal explosive volcanic eruptions in 2017; the paper is devoted to the event on December 20 with ash removal up to 15 km above sea level. We describe the course of the eruption and the results of its analysis, including an animated image of the motion of the ash cloud from the volcano, performed on a series of images of Himawari-8 (http://dvrcpod.planeta.smislab.ru/animation/1513757110.gif), with overlaid on it results of modeling the distribution of this ash cloud (http://dvrcpod.planeta.smislab.ru/animation/1513777733.gif). The eruptive cloud moved northeast of the volcano at an average speed of 100 km/h, the main area covered by ash clouds was about 78 000 km2, including 42 600 km2 on land. Ash clouds after the eruption were recorded in the atmosphere at a distance of 1500–2000 km to the northeast of the volcano until December 22, 2017. In addition to ash deposits, as a result of the eruption, deposits of pyroclastic flows (with run out to 5–6 km from the volcano) and mud streams (about 18 km) were formed in Vostochnaya Valley and Sukhaya Khapitsa River. Satellite monitoring of the volcano and analysis of the eruption data was carried out using information systems VolSatView and Signal.
Keywords: volcano, Bezymianny, eruption, Kamchatka, monitoring, VolSatView
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