Klyuchevskoi volcano in Russia’s Kamchatka region began erupting shortly after the massive 8.8 magnitude earthquake.

Multiple authoritative news outlets and geological monitoring services reported that the Klyuchevskoi volcano, one of the highest and most active volcanoes in the world located on Russia's Kamchatka Peninsula, began erupting shortly after a powerful 8. 8 magnitude earthquake occurred off the coast of Kamchatka. The earthquake triggered tsunami warnings across the Pacific region and was followed by volcanic activity at Klyuchevskoi.

This sequence of events is supported by reports from Reuters, The Guardian, Euronews, Meduza, and others, which consistently describe the eruption occurring hours after the earthquake. The temporal proximity and geographic correlation between the earthquake and volcanic eruption are well documented, confirming the claim's accuracy.