Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2024, Vol. 21, No. 6, pp. 389-397
Remote monitoring of the explosive eruption of Bezymianny volcano on July 24, 2024
O.A. Girina
1 , A.G. Manevich
1 , D.V. Melnikov
1 , А.М. Konstantinova
2 , I.M. Romanova
1 , I.A. Uvarov
2 , A.A. Sorokin
3 , L.S. Kramareva
4 , S.P. Korolev
3 , S.I. Malkovsky
3 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: 11.12.2024
DOI: 10.21046/2070-7401-2024-21-6-389-397
Bezymianny is one of the most active volcanoes in Kamchatka and the world. Its previous eruption occurred on October 18, 2023. Thermal activity of the volcano is shown, a description of the explosive eruption of July 24, 2024, and preceding events is given based on the study of video materials, as well as various satellite data from the information system “Remote Monitoring of the Activity of the Volcanoes of the Kamchatka and the Kuriles” (VolSatView, http://kamchatka.volcanoes.smislab.ru). The explosions were followed by the formation of pyroclastic flows in the Vostochnaya Valley, above which a coignimbrite cloud formed. An animated image of the movement of ash clouds from the volcano made from a series of Himawari-9 images in VolSatView (http://kamchatka.volcanoes.smislab.ru/animation/1721855961.webm) shows a rapid movement of the eruptive cloud to the southeast from the volcano and a slow movement of the long coignimbrite cloud to the southwest from the volcano. The eruptive cloud was noted in satellite images until 12:00 UTC on July 25, for about 2500 km from the volcano in the eastern part of the Pacific Ocean. The coignimbrite cloud slowly moved in a strip from the volcano along the Eastern Ridge of Kamchatka and then moved southwest along the eastern part of the Kuril Islands. This cloud was noted until 17:00 UTC on July 27, for about 1800 km from the volcano. Ash clouds were dangerous for international aviation: according to a representative of the Federal Air Transport Agency, 307 airliners used alternate routes on July 25. The main area of the territory where ash falls were observed, as of July 27, 2024, was about 462 thousand km2, including about 105 thousand km2 on land.
Keywords: volcano, Bezymianny, explosive eruption, KVERT, forecast, satellite monitoring, VolSatView, Kamchatka
Full textReferences:
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