Explosive-effusive eruption of Alaid volcano continues: the summit crater of the volcano filled with fresh lava, a cinder cone grows in its southern part, a lava flow effuses in the south-western volcanic flank.
Fumarole activity of Kizimen volcano on July 10, 2014.
Photo by O.Artemiev (ISS - Expedition 39/40) on the project "Monitoring of Kurile-Kamchatkan volcanoes of island arc" (head Dr. A. Khrenov). Joint research of volcanoes is performing for the first time on the Programm "Hurricane" under the aegis of the Federal Space Agency - Roskosmos (RSC "Energia" and Yu. Gagarin CPC) and in collaboration with the Russian Academy of Sciences (IGEM, IVS FEB RAS and KB GS RAS).
Zheltovsky volcano from Vestnik Bay, looking northwest
Rim of presumed Late Pleistocene caldera is seen on the right (ESE) slope of the volcano. Summit part of the volcano consists of a series of extrusive domes of different ages. Mid-Holocene beach ridge, covered with trees and bushes, is at the foreground. The weather is typical for Kamchatka photos.
This volcano appears to be the northernmost Holocene vent of the Eastern volcanic belt - frontal, subduction related volcanic zone of Kamchatka. Located farther north enormous Kliuchevskoi volcanic group is shifted westward and likely has a more complicated origin related to the evolution of the Kamchatka-Aleutian corner (the junction of Kamchatka and Aleutian arcs). Vysokii volcano has been active from the beginning of Holocene till at least 2000 14C years BP, when it produced the lava flow seen at this photo. The lava flow is overlain by SH2 (1000 14C years BP) and SH3 (1400 14C years BP) marker ashes from Shiveluch volcano, OP ash (1500 14C years BP) from Baranii Amphitheater crater at the foot of Opala volcano, and by KS1 marker ash from Ksudach.
The rocks of the summit part of the volcano are strongly altered due to hydrothermal activity. Lava flows of the volcano formed about 1500 14C years BP, and are covered by SH2 (1000 14C years BP) and SH3 (1400 14C years BP) marker ashes from Shiveluch volcano as well as by ashes from recent Komarov eruptions.