The Krasheninnikov volcano on Russia's Kamchatka Peninsula erupted on the night of August 3, 2025, marking its first eruption in approximately 600 years. The eruption produced an ash plume reaching 6 kilometers in height. This volcanic activity occurred days after a powerful magnitude 8.8 earthquake struck the region on July 30, 2025, which caused the Kamchatka Peninsula to shift nearly 2 meters to the southeast. The seismic event has triggered widespread volcanic unrest, with seven volcanoes in Kamchatka currently showing signs of activity, including the Klyuchevskoy volcano, Eurasia's highest active volcano, which erupted on August 4, sending ash up to 10.5 kilometers. The volcanic ash from these eruptions is affecting trans-Pacific flight corridors, prompting monitoring for potential flight cancellations and delays. Additionally, on August 9, a 6.0-magnitude earthquake struck near Russia's Kuril Islands, close to Kamchatka, further intensifying seismic concerns in the region already experiencing ongoing volcanic and earthquake activity.