Activity at Kizimen Volcano

The ongoing eruption of Russia's Kizimen Volcano is reshaping the mountain. A massive lava flow is growing on the volcano's eastern flank, and debris from the flow is building up the lower slopes. Additional debris is filling a stream valley north of the volcano.

This false-color image was collected by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite. The lava flow and rubble that has fallen off of it is dark brown. Fresh ash on the snowy landscape is lighter brown, and surrounding forests are colored reddish-brown. A light-colored gas and ash plume streams from Kizimen's summit.

Source: NASA World Observatory