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Records: 2284
 2020
Bergal-Kuvikas Olga, Bindeman Ilya, Skorkina Anna, Khubaeva Olga Origin of monogenetic volcanoes in Malko-Petropavlovsk zone of the transverse dislocation (Kamchatka): geological setting, geophysical parameters and geochemical data // Abstract volume of the 8th International Maar Conference. Petropavlovsk-Kamchatsky: IVS FEB RAS. 2020. P. 37-38.
Girina O.A., Ladygin V.М. Monogenetic cones of Klyuchevskaya group of volcanoes (Kamchatka, Russia) // Abstract volume of the 8th International Maar Conference. Petropavlovsk-Kamchatsky: IVS FEB RAS. 2020. P. 56-57.
Girina O.A., Melnikov D.V., Manevich A.G., Nuzhdaev A.A., Petrova E.G. The 2019 Activity of Kamchatka and Kurile Islands Volcanoes and Danger to Aviation (oral report) // JpGU - AGU Joint Meeting 2020: Virtual. 12-16 July, 2020, Japan, Tokyo. 2020.
Girina O.A., Melnikov D.V., Manevich A.G., Nuzhdaev A.A., Petrova E.G. The 2019 Activity of Kamchatka and Kurile Islands Volcanoes and Danger to Aviation // Japan Geoscience Union Meeting 2020. Japan, Chiba: JpGU. 2020. № HDS10-P01.
Kopylova G.N., Boldina S.V. Groundwater Pressure Changes Due to Magmatic Activation: Case Study of The E-1 Well, Kamchatka Peninsula, Russia // Geothermal Volcanology Workshop 2020. September 03-09, 2020, Petropavlovsk-Kamchatsky, Institute of Volcanology and Seismology. 2020.
Melnik O., Lyakhovsky V., Shapiro Nikolay M., Galina N., Bergal-Kuvikas Olga Deep long period volcanic earthquakes generated by degassing of volatile-rich basaltic magmas // Nature Communication. 2020. V. 11. № 3918. doi: 10.1038/s41467-020-17759-4.    Annotation
Deep long-period (DLP) earthquakes observed beneath active volcanoes are sometimes considered as precursors to eruptions. Their origin remains, however, unclear. Here, we present a possible DLP generating mechanism related to the rapid growth of gas bubbles in response to the slow decompression of over-saturated magma. For certain values of the gas and bubble content, the elastic deformation of surrounding rocks forced by the expanding bubbly magma can be fast enough to generate seismic waves. We show that amplitudes and frequencies of DLP earthquakes observed beneath the Klyuchevskoy volcano (Kamchatka, Russia) can be predicted by our model when considering pressure changes of ~107 Pa in a volume of ~103–104 m3 and realistic magma compositions. Our results show importance of the deep degassing in the generation of volcanic seismicity and suggest that the DLP swarms beneath active volcanoes might be related to the pulses of volatile-rich basaltic magmas rising from the mantle.
Ozerov A.Yu., Girina O.A., Zharinov N.A., Belousov A.B., Demyanchuk Yu.V. Eruptions in the Northern Group of Volcanoes, in Kamchatka, during the Early 21st Century // Journal of Volcanology and Seismology. 2020. V. 14. P. 1-17. https://doi.org/10.1134/S0742046320010054.    Annotation
The early 21st century saw increased eruption activity of major volcanoes in the Northern Group of Kamchatka, namely, Sheveluch, Klyuchevskoy, Bezymianny, and the Tolbachik Fissure Zone. The growth of an extrusive dome on Sheveluch andesitic volcano has occurred, with the dome reaching a height of 600 m after 38 years of nearly uninterrupted eruption activity. An 8-year period of relative quiet was followed by ten summit eruptions and two lateral vent openings on the Klyuchevskoy basaltic volcano. Explosive–effusive eruptions were observed nearly every year on the Bezymianny andesitic volcano. A 36-year quiet period gave way to a new eruption in the Tolbachik regional fissure zone.
Белоусов А.Б., Белоусова М.Г. Лавовый дрейф вулканолога Попкова // Природа. 2020. № 1. С. 50-59. doi: 10.7868/S0032874X20010056.
Гирина О.А., Маневич А.Г., Мельников Д.В., Нуждаев А.А., Лупян Е.А. Активность вулканов Камчатки и Курильских островов в 2019 г. и их опасность для авиации // Вулканизм и связанные с ним процессы. Материалы XXIII ежегодной научной конференции, посвящённой Дню вулканолога. Петропавловск-Камчатский: ИВиС ДВО РАН. 2020. С. 11-14.
Гирина О.А., Мельников Д.В., Маневич А.Г., Лупян Е.А., Крамарева Л.С. Характеристика событий эксплозивного извержения вулкана Безымянный 15 марта 2019 г. по спутниковым данным // Современные проблемы дистанционного зондирования Земли из космоса. 2020. Т. 17. № 3. С. 102-114. doi: 10.21046/2070-7401-2020-17-3-102-114.    Annotation
Вулкан Безымянный — один из наиболее активных вулканов на Камчатке и в мире. В декабре 2016 г. началась его активизация после четырёхлетнего молчания в течение 2012–2016 гг. В 2017 г. произошло три пароксизмальных эксплозивных извержения вулкана, в 2019 г. — два. В работе дано описание извержения, произошедшего 15 марта 2019 г., а также предваряющих его событий на основании изучения видеоматериалов и различных спутниковых данных. Мониторинг вулкана проводился с помощью информационной системы (ИС) «Дистанционный мониторинг активности вулканов Камчатки и Курил» (VolSatView). Извержение было предсказано сотрудниками KVERT (Kamchatkan Volcanic Eruption Response Team, Камчатская группа реагирования на вулканические извержения) за 6,5 ч до его начала. Эксплозии подняли пепел до 15 км над уровнем моря, эруптивное облако перемещалось на северо-восток и восток от вулкана, основная площадь территории, на которой отмечались пеплопады, составляла около 210 410 км2, в том числе на суше — 15 000  км2. Показано анимированное изображение движения пеплового облака от вулкана, выполненное по серии снимков Himawari-8 в ИС VolSatView (http://kamchatka.volcanoes.smislab.ru/animation/1584509687.gif). Аэрозольные облака после окончания извержения фиксировались в атмосфере на удалении до 4000 км на северо-восток от вулкана до 18 марта 2019 г. В результате извержения на всех склонах вулкана (преимущественно на восточном и юго-восточном) образовались отложения пирокластических потоков и пирокластических волн, площадь которых составила около 30  км2.

Bezymianny is one of the most active volcanoes in Kamchatka and in the world. In December 2016, activity of the volcano began to intensify after four years of silence during 2012–2016. In 2017, three, and in 2019, two paroxysmal explosive eruptions of the volcano occurred. The work describes the eruption that occurred on March 15, 2019, as well as the events preceding it, based on the study of video and various satellite data. The volcano was monitored using the information system (IS) “Remote monitoring of the activity of Kamchatka and Kurile volcanoes” (VolSatView). The eruption had been predicted by KVERT (Kamchatkan Volcanic Eruption Response Team) staff 6.5 hours before it began. Explosions raised ash up to 15 km above sea level, the eruptive cloud moved northeast and east of the volcano, the main area of the territory where ashfalls were observed was about 210,410 km2 , including 15,000 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 IS VolSatView (http://kamchatka.volcanoes.smislab.ru/animation/1584509687.gif). After the eruption, aerosol clouds were recorded in the atmosphere at a distance of up to 4000 km in the northeast of the volcano until March 18, 2019. As a result of the eruption, deposits of pyroclastic flows and pyroclastic surges formed on all slopes of the volcano
(mainly on the eastern and southeastern), the area of which reached about 30 km2.



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