The Shiveluch volcano on Russia's Far Eastern Kamchatka Peninsula on Thursday ejected an ash cloud to as high as nearly 11km above the sea level, the Itar-Tass news agency reported.
An ash column from the volcano rose to a height of 10.7km above the sea level.
There was no immediate threat for the population, and no emissions of volcanic dust were monitored in neighboring villages.
Two earthquakes were registered at the volcano over the past 24 hours, which was given the highest Red Aviation Code.
This was the most powerful eruption of ash registered at Shiveluch this year. Shiveluch has been active for more than four weeks.
Shiveluch, standing 3,283 meters above the sea level, is Kamchatka's northernmost active volcano.