Klyuchevskaya Sopka

Klyuchevskaya Sopka is an active stratovolcano on Russia's Kamchatka Peninsula, about 100 kilometers inland from the Bering Sea, and at 4,754 meters it is both the highest peak in Siberia and the tallest active volcano in Eurasia. The volcano formed roughly 7,000 years ago and has been almost continuously active since its first documented eruption in 1697. Daniel Gauss led the first recorded ascent of its summit in 1788, and no further ascent was recorded until 1931, when climbers descending through falling lava were killed. Its most recent eruptive cycle began on July 30, 2025, following a major regional earthquake, and the volcano is part of the UNESCO World Heritage Site covering the volcanoes of Kamchatka.