Summary:
A massive 8.8‑magnitude earthquake off Russia’s Kamchatka Peninsula on July 30, 2025, triggered tsunami warnings across the Pacific—from Japan and the Kuril Islands to Hawaii and South America. Waves reached up to 4 meters in Kamchatka and about 1.7 meters in Hawaii and Japan before warnings were downgraded.
Why It Matters:
This was one of the strongest earthquakes recorded in decades, and the fast-moving tsunami alerts raised global concern. It underscores how interconnected seismic events are monitored in real time—and highlights the growing risks facing the Pacific Rim
Sources: Reuters