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 …

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

Nov 11, 2025 · 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 …

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.

1 day ago · A powerful earthquake off Russias Kamchatka Peninsula in late July caused a massive Pacific tsunami, which was spotted in unprecedented detail by NASA and CNESs …

Oct 3, 2018 · These awe-inspiring waves are typically caused by large, undersea earthquakes at tectonic plate boundaries. When the ocean floor at a plate boundary rises or falls suddenly, it …

Tsunami waves are unlike typical ocean waves generated by wind and storms, and most tsunamis do not "break" like the curling, wind-generated waves popular with surfers. Tsunamis typically …

Jul 30, 2025 · From Japan to Hawaii and California, people were tracking the effects of a tsunami after a powerful earthquake struck overnight in the North Pacific off Russia’s Far East.

Jul 31, 2025 · Tsunami alerts had been in effect for the area as of about noon local time Wednesday (2 p.m. ET), though the agency said that the waves had not caused any material …

Jul 30, 2025 · TOKYO (AP) — One of the strongest earthquakes ever recorded struck off Russia’s sparsely populated Far East early Wednesday, sending tsunami waves into Japan, Hawaii and …