Ushishur, Kuril Islands, Russia

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

Advertisement

Hokkaido 2 – The Mashu Caldera, Hokkaido, Japan

Mashu caldera in winter with Kamuinupuri to the right of the photo and the Kamuishu dome in the middle of the lake. Image courtesy Wiki

 

The Toya – Usu post led me to the interesting volcanic history of Hokkaido, Japan.  Found a multiple caldera complex in eastern Hokkaido with three calderas in close proximity to one another.  Will write about these for the next few posts.

June 22 Eruption at Raikoke, Kuril Islands

 

NASA ISS photo of Raikoke in eruption taken June 22. Active plume with water vapor collar at the base. Water vapor collar at the base may be due to ambient air sucked upwards with the plume. Alternately, it may be due to interaction of pyroclastic flows with surrounding sea water. Image courtesy NASA Earth Observatory.

Ongoing Activity at Sarychev Peak, Kuril Islands, Russia

ISS astronaut photo of Sarychev Peak eruptive plume June 12, 2009. 3 pyroclastic flows are visible at the base of the plume. Brown flow to the left toward the shoreline. Grey – white flow toward the bottom of the photo. Finally, a third dark brown flow to the right toward the opposite shoreline. Image originally courtesy NASA. https://en.wikipedia.org/wiki/Sarychev_Peak

Ongoing eruptions at Ebeko, Kuril Islands

January 2017 steam emissions from Ebeko