The Klyuchevskoy volcano on Russia’s Kamchatka peninsula began erupting on Wednesday morning following a powerful earthquake off Russia’s far eastern coast.

Lava began flowing from what is the largest active volcano in the northern hemisphere.

The Russian Academy of Sciences’ United Geophysical Service said in a post on Telegram: “A descent of burning hot lava is observed on the western slope. Powerful glow above the volcano, explosions.”

Located in the Kamchatka region, Klyuchevskoy stands at 4,750 meters (15,584 feet) and last erupted in 2023.

According to the Kamchatka branch of the Russian Academy of Sciences’ geophysical service, observers reported explosions and visible streams of lava on the volcano’s western slopes.

Scientists had been predicting the eruption for weeks, noting that the volcano’s crater had been gradually filling with lava and the mountain had been emitting ash plumes.

Kamchatka, often referred to as the “land of fire and ice,” is one of the world’s most seismically active volcanic regions, with around 300 volcanoes, 29 of which are active, according to NASA Earth Observatory.

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