Ushishur, Kuril Islands, Russia Posted by agimarc on 2022-02-01 Posted in: Asia, Volcanoes. Tagged: Andesite, bivalves, Caldera, hydrothermal, Kuril, Ushushur. 1 Comment Airborne photo of Ushishur volcano, Yankich Island, central Kurils. Caldera is clearly visible with 4 post-caldera domes. Photo taken looking generally N. External hydrothermal plume visible to the E at the 0300 position. Neighboring Reponkich Island visible to the NE. Image courtesy Eugene Kaspersky on Twitter, Oct 2019 Continue Reading