Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2020, Vol. 17, No. 5, pp. 297-303
Analysis of the events of the explosive eruption of Bezymianny volcano on October 21, 2020, based on satellite data
O.A. Girina
1 , D.V. Melnikov
1 , A.G. Manevich
1 , A.V. Kashnitskii
2 , L.S. Kramareva
3 , A.A. Nuzhdaev
1 1 Institute of Volcanology and Seismology FEB RAS, Petropavlovsk-Kamchatsky, Russia
2 Space Research Institute RAS, Moscow, Russia
3 Far-Eastern Center SRC Planeta, Khabarovsk, Russia
Accepted: 02.11.2020
DOI: 10.21046/2070-7401-2020-17-5-297-303
Bezymianny is one of the most active volcanoes in Kamchatka and the world. Its previous eruption occurred on March 15, 2019. This paper describes the explosive eruption of the volcano on October 21, 2020, and the events preceding it based on the study of video and various satellite data. Satellite monitoring of the volcano has been carried out using the information system “Remote monitoring of the activity of Kamchatka and Kurile volcanoes” (VolSatView) since 2014. Explosions raised ash up to 10–11 km above sea level, in connection with a cyclone in the Kamchatka region, the eruptive cloud was divided into two, the northern part of which was over the Klyuchevskoy group of volcanoes during October 21–23, and the southern part moved more than 1000 km southeast of the volcano. The main area of the territory where ashfalls were noted at 10:11 GMT on October 22, 2020, was about 111.5 thousand km2, including 60.8 thousand km2 on land. An animated image of the ash cloud movement from the volcano is shown, made according to a series of images of Himawari-8 in the VolSatView (http://kamchatka.volcanoes.smislab.ru/animation/1603972936.webm). The VEI for this eruption is 2.
Keywords: volcano, Bezymianny, explosive eruption, KVERT, video data, satellite monitoring, VolSatView, Kamchatka
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