Major areas of current research include determining why some large earthquakes do not generate tsunamis while other smaller ones do. This ongoing research is designed to help accurately forecast …

5 days ago · tsunami, catastrophic ocean wave, usually caused by a submarine earthquake, an underwater or coastal landslide, or a volcanic eruption. The term tidal wave is frequently used for …

Feb 25, 2025 · A tsunami is a series of extremely long waves caused by a large and sudden displacement of the ocean, usually the result of an earthquake below or near the ocean floor.

Dec 5, 2024 · Your official U.S. government weather forecasts, warnings, meteorological products for forecasting the weather, tsunami hazards, and information about seismology.

Jul 29, 2025 · Tsunami waves impact Hawaii, West Coast after powerful earthquake off east coast of Russia Tsunami alerts remain in effect in Alaska, Hawaii and the U.S. West Coast after a magnitude …

May 6, 2026 · A colossal tsunami, taller than New York City's Empire State Building and driven by climate change, struck the majestic Tracy Arm Fjord in southeastern Alaska last year, researchers …

Dec 14, 2015 · Tsunamis are giant, powerful waves most often caused by earthquakes beneath the ocean floor. Their incredible power can destroy entire communities, then drag the debris out to sea. …