The Kambalny volcano is 2,156 meter high and is located in southern Kamchatka. The last time it erupted was during the reign of the Russian empress Catherine the Great, in 1769.
https://www.youtube.com/watch?v=Dra3dfdwfhkFootage of the volcano spewing ash up to a height of 7,000 meters is indeed impressive... and yes, a little bit scary.