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Krasheninnikov, a volcano on Russia's Kamchatka Peninsula, erupts for the first time since the 15th century
Attacks in Russia during the Russian invasion of Ukraine — Krasheninnikov, a volcano on Russia's Kamchatka Peninsula, erupts for the first time since the 15th century and the first in historical records. The eruption takes place four days

Context: Attacks in Russia during the Russian invasion of Ukraine.
Krasheninnikov, a volcano on Russia's Kamchatka Peninsula, erupts for the first time since the 15th century and the first in historical records. The eruption takes place four days after a magnitude 8.8 earthquake hit the same region on July 30, which may have contributed to the eruption. [https://edition.cnn.com/2025/08/03/europe/tsunami-russia-earthquake-volcano-intl-hnk (CNN)]
Event summary via Wikipedia Current Events (2025-08-03).