A powerful magnitude?8.8 earthquake struck off Russia’s Kamchatka Peninsula on July?30, 2025, triggering tsunami warnings across the Pacific. Hours later, the Klyuchevskoy volcano—the tallest active volcano in Eurasia—erupted with lava flows and glowing explosions on its western slope, highlighting the seismic volatility of the region.

Key Points:

• At approximately 8.8 magnitude, the earthquake’s epicentre lay about 119?km southeast of Petropavlovsk-Kamchatsky, causing structural damage and injuries but no confirmed fatalities.
• Tsunami waves up to 5?m struck Russia’s Severo-Kurilsk, while Japan (1.3?m) and Hawaii (1.7?m) also experienced wave surges, prompting large-scale evacuations.
• Shortly after the quake, the Klyuchevskoy volcano erupted, with red-hot lava descending its western flank and explosive glows visible above the crater. The eruption is frequent—Klyuchevskoy has erupted at least 18 times since 2000.
• The Russian Academy of Sciences and Geophysical Survey confirmed the eruption via Telegram, reporting visible lava flow, glowing summit, and explosive activity.
• Experts are analyzing if the earthquake directly triggered the eruption; the Kamchatka Peninsula lies within the tectonically active Pacific Ring of Fire, prone to such events.