Kronozki on Kamchatka Becomes Active Again After Over 100 Years
On Friday evening, the Kronozki volcano (Kronotsky) on Russia’s Kamchatka Peninsula reportedly erupted. According to a Telegram report from KVERT, picked up by Russian media, an ash-steam cloud rose over 9 kilometers and spread across 85 kilometers. Aviation initially issued a red warning, which has since been lowered to orange as the cloud subsided to 5 kilometers.
The last documented eruption of Kronozki occurred more than 100 years ago, in 1923. Scientists partly attribute the sudden activity to the mega-earthquake on July 30, 2025. In fact, just before the eruption, another magnitude 6.1 earthquake was recorded near the regional capital.
Notably, the Krascheninnikow volcano, also activated by the mega-earthquake, lies nearby—separated only by the Krascheninnikow Lake. Both volcanoes are in the same volcanic zone, but a simultaneous eruption has not been documented.
Kronozki is a 3,528-meter-high stratovolcano rising from the rim of the eponymous caldera. Today’s dual activity underscores the geological dynamism of Kamchatka and highlights why the region is one of the world’s most active volcanic areas.
Travelers and airlines are advised to monitor conditions carefully and adjust flight routes. To verify the KVERT report, the author installed the Telegram app, previously avoided due to privacy concerns. KVERT’s presence on Telegram explains why current reports are more accessible than through the official website from Germany.