ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE

  

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2021, Vol. 18, No. 1, pp. 261-267

Continuous multi-satellite monitoring of volcanoes to detect eruptions using the example of Klyuchevskoy volcano flank eruption in February 2021

O.A. Girina 1 , D.V. Melnikov 1 , E.A. Loupian 2 , A.G. Manevich 1 , A.А. Sorokin 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: 11.03.2021
DOI: 10.21046/2070-7401-2021-18-1-261-267
Klyuchevskoy Volcano is one of the most active volcanoes in the world. In 2019–2021, there were two summit explosive-effusive volcanic eruptions with an interval of 88 days. On February 17, 2021, 9 days after the end of the second summit eruption, at an altitude of 2.8 km a. s. l. a lateral eruption appeared on the northwestern slope of the volcano. Its discovery was due to continuous monitoring of the volcano using satellite data of low, medium and high resolution available in the information system “Remote monitoring of the activity of the volcanoes of the Kamchatka and the Kuriles” (VolSatView, http://kamchatka.volcanoes.smislab.ru). The thermal anomaly in the area of the lateral break was detected using medium-resolution satellite images, the eruption was confirmed using high-resolution images, the dynamics of the break development — using low-resolution images (Himawari-8). Two fissures formed on the volcanic flank, from which lava flows effuse. By 21–22 February, lava flows began to intrude into the Erman glacier. Mud flows from the fronts of lava flows along the Krutenkaya River passed 7 km from the Klyuchi Village in the direction of the Kamchatka River. By 28 February, the lower fissure stopped working, but the eruption of the lateral break is actively continuing: the cinder cone is growing; the area of the lava field is increasing. The 2021 lateral break is named after Corresponding Member of the USSR Academy of Sciences G. S. Gorshkov.
Keywords: volcano, Klyuchevskoy, lateral break, video data, satellite monitoring, VolSatView, Kamchatka
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