This 100 m image of 16 February 2017 shows us the volcano Sjiveloetsj, the northernmost active volcano in Kamchatka Krai, Russia. It and Karymsky are Kamchatka's largest and most active volcanoes. Shiveluch began forming about 60,000 to 70,000 years ago, and it has had at least 60 large eruptions. The current active period started around 900 BC. Since then, the large and moderate eruptions has been following each other in 50 to 400 year-long intervals. Catastrophic eruptions took place in 1854 and 1956, when a large part of the lava dome collapsed and created a devastating debris avalanche.