A magnitude 8.8 earthquake struck off Russia’s Kamchatka Peninsula on July 29, 2025, triggering tsunami warnings across the Pacific, including for Hawaii and parts of Alaska.This powerful tremor ranks among the strongest ever recorded worldwide.
Tsunami warning details:
The Pacific Tsunami Warning Center (PTWC) issued alerts for Hawaii and the U.S. West Coast, anticipating waves of 1–3 meters in Hawaii, with slightly higher potential along Russian and Ecuadorian coasts.
In Honolulu, sirens were activated and some coastal evacuations ordered; authorities urged residents to move to higher ground immediately.
What’s happened since:
By Hawaii local time, the tsunami warning was later cancelled after further analysis. Although a tsunami watch had initially been issued early evening, it was lifted after about 40 minutes when no significant threat was confirmed.
Observations recorded only minor sea‑level changes—just a few inches in places like Haleiwa—detected by gauges, with no reported damage.
Summary Timeline:
July 29, 2025 – 8.8‑magnitude quake off Kamchatka hits.
Tsunami warnings issued for Hawaii, Alaska, U.S. West Coast, Japan, and other Pacific coastlines.
Hawaii evacuation alerts and safety protocols activated.
Within ~40 minutes, Hawaii’s warning was cancelled as no tsunami materialized.
Minor wave activity recorded—no casualties, no infrastructure impact.
What to do next:
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Stay informed by monitoring official updates from the Pacific Tsunami Warning Center at tsunami.gov and local emergency services.
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Even after a cancellation, officials recommend reviewing evacuation routes and being prepared for future alerts.
This major seismic event triggered widespread responses—and while the initial tsunami warning for Hawaii caused concern, the danger was quickly ruled out after analysis. If you'd like official bulletin texts, seismic data sources, or preparedness tips, feel free to ask!
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