This event resulted in an estimated 558 deaths and over 12,000 injuries [30]. Tsunami Safety: What to Know
A sudden, unusual rise or fall of ocean waters (the "drawback") [18, 20].
If you are in a coastal area and experience a strong earthquake, follow these immediate steps from the National Weather Service : Feel: Strong or long-lasting ground shaking [18, 20]. Tsunami
For real-time monitoring, you can check the U.S. Tsunami Warning Centers or the Japan Meteorological Agency .
All tsunami alerts related to this specific quake have since been lifted [35]. Historic 8.8 Magnitude Event (July 2025) This event resulted in an estimated 558 deaths
As of April 28, 2026, there are no active tsunami warnings, advisories, or watches for the [17] or Japan [29]. Recent activity has calmed following a major tsunami event earlier this month. Recent Major Event: Northern Japan (April 2026)
Waves reached up to 5 meters in Russia's Kuril Islands [26], 6 feet in Hawaii [5.2], and up to 3.5 feet in California (Crescent City) [5.2, 5.3]. For real-time monitoring, you can check the U
A powerful struck off the northern coast of Japan on April 20, 2026 [34, 35].