Dynamics of the ongoing eruptive activity over the period 2010-2011 on Kizimen Volcano was reconstructed using aero-photo and satellite data. The geological and geomorphological impact of this activity was estimated. As a first approximation, the article provides estimates of degassing of volcano sulfur dioxide (as an index of the intensity of the volcanic processes) and the volume of a fresh lava flow.

Here we present the results of the successful application of VIIRS satellite data for monitoring and reconstruction of the eruption history of Snow volcano (Chirpoi Island, Kuriles) in 2012–2017. We used Nightfire algorithm to accomplish our tasks. This algorithm differs significantly from the other similar systems due to simultaneous usage of numerous diapasons of the infrared spectra (from near to long ranges) together with the data of the visible spectra, while most of the other algorithms (for example, MODVOLC and MIROVA) use one or two diapasons from the middle or long parts of the infrared spectra. Our research shows that the maximal thermal radiation power (MW) was observed from November 2012 to January 2013. During this period, first and most voluminous portion of lava flow was produced. There are four more well-distinguished periods of this eruption: September – October 2013; March – June 2014; August – November 2014; April – June 2015. All of them correspond to the impulses of the fresh lava eruptions, although the thickness of these lava flows is smaller compared to the first period.

На основе данных дистанционного зондирования за период с 1999 по 2021 гг. определены этапы изменения активности кратерного озера вулкана Малый Семячик. Показано, что изменение цветовой палитры поверхности озера является следствием изменения химического состава воды.