Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2021, Vol. 18, No. 5, pp. 321-327
Satellite monitoring of the explosive eruption of Chirinkotan volcano (Northern Kuriles) in 2021
O.A. Girina
1 , A.G. Manevich
1 , D.V. Melnikov
1 , A.A. Nuzhdaev
1 , A.V. Kashnitskii
2 , I.A. Uvarov
2 , I.M. Romanova
1 , A.А. Sorokin
3 , S.I. Malkovsky
3 , S.P. Korolev
3 , L.S. Kramareva
4 1 Institute of Volcanology and Seismology FEB RAS, Petropavlovsk-Kamchatsky, Russia
2 Space Research Institute RAS, Moscow, Russia
3 Computing Center FEB RAS, Khabarovsk, Russia
4 Far Eastern Center of SRC Planeta, Khabarovsk, Russia
Accepted: 13.10.2021
DOI: 10.21046/2070-7401-2021-18-5-321-327
Chirinkotan volcano–island is located in the rear zone of the Northern Kuril Islands. The eruptive activity of the volcano is represented by explosive (Vulcanian type) and explosive-effusive eruptions of moderate intensity; the composition of the rocks is andesite. There is information about eight historical volcanic eruptions. The paper describes the course of the eruption in August 2021 based on the study of various satellite data in the information system “Remote monitoring of Kamchatka and Kuril Islands volcanic activity” (VolSatView, http://kamchatka.volcanoes.smislab.ru). Single explosions on Chirinkotan volcano were noted on August 8–10, 15, 17, 18, 22 and 23; and three explosive events took place on August 14. Ash clouds moved mainly west, southwest, east and southeast of the volcano. The total area of ash falls during the eruption exceeded 55 thousand km2. Chirinkotan volcano ash repeatedly fell on the Islands of Raikoke, Matua, Rasshua, Ekarma, Shiashkotan, Harimkotan and Onekotan. For this eruption, the Volcanic Explosivity Index is rated 2. The activity of the volcano in August was hazardous to local aviation.
Keywords: volcano, Chirinkotan, Northern Kuriles, explosive eruption, satellite monitoring, information system VolSatView, KVERT
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