Authorities warn a more powerful explosion “could occur at any time” The eruption of the Shiveluch volcano on the Kamchatka Peninsula in Russia’s Far East has sent a massive plume of ash 10 kilometers into the sky and triggered red-level aviation alerts for the area and nearby regions. The ash cloud from Saturday’s eruption stretched some 50 kilometers from the volcano as it traveled east toward the Bering Sea, according to the Volcanology and Seismology Institute of the Far Eastern Branch of