Earth Imaging Journal: Remote Sensing, Satellite Images, Satellite Imagery
Breaking News
Bluesky MetroVista Mesh Models Underpin Dynamic Map of London
Leicestershire - Photorealistic 3D models from Bluesky are being...
US Army Geospatial Center Upgrades OGC Membership to Advance Open Systems
The Open Geospatial Consortium (OGC) is pleased to announce...
Drone Nerds Announces the Launch of the DJI Air 2S
Florida - Drone Nerds, the company with the largest...
ZeroEyes Announces Phase I SBIR Award from the Department of Defense to Develop Drone-Enabled Active Shooter Deterrence Capabilities
PHILADELPHIA - ZeroEyes, Inc. is pleased to announce an...
Carbon Mapper Launches Satellite Program to Pinpoint Methane and Carbon Dioxide Super Emitters
State of California, NASA JPL, and Planet team up...

 

Snow cover highlights the calderas and volcanic cones that form the northern and southern ends of Onekotan Island, part of the Russian Federation in the western Pacific Ocean.Snow cover highlights the calderas and volcanic cones that form the northern and southern ends of Onekotan Island, part of the Russian Federation in the western Pacific Ocean. Calderas are depressions formed when a volcano emptiesits magma chamber in an explosive eruption and then the overlaying material collapses into the evacuated space.

In this astronaut photograph from the International Space Station, the northern end of the island (image right) is dominated by the Nemo Peak volcano, which began forming within an older caldera approximately 9,500 years ago. The last recorded eruption at Nemo Peak occurred in the early 18th century.

The southern end of the island was formed by the 7.5 kilometer (4.6 mile) wide Tao-Rusyr Caldera. The caldera is filled by Kal’tsevoe Lake and Krenitzyn Peak, a volcano that has only erupted once in recorded history (in 1952).

Extending between northeastern Japan and the Kamchatka Peninsula of Russia, the Kurils are an island arc located along the Pacific “Ring of Fire.” Island arcs form along an active boundary between two tectonic plates,where one plate is being driven beneath the other (subduction). Magma generated by the subduction process feeds volcanoes—which eventually form volcanic islands over the subduction boundary.

Comments are closed.