Tsunami - Wikipedia
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 …
Tsunami | Definition, Meaning, & Facts | Britannica
Dec 30, 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 …
The science behind tsunamis | National Oceanic and ...
Dec 6, 2024 · About 80% of all known tsunamis are triggered by earthquakes. These seismic events move Earth's surface, displacing the water above and generating waves that rapidly …
What are tsunamis? | U.S. Geological Survey - USGS.gov
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 …
A Satellite Watched a Mega-Tsunami Cross the Pacific—and It’s ...
Jan 7, 2026 · A satellite captured a Tsunami from space for the first time, revealing why the 2025 Kamchatka earthquake was less destructive than 1952.
Tsunami facts and Information | National Geographic
Oct 3, 2018 · A tsunami is a series of ocean waves that sends surges of water, sometimes reaching heights of over 100 feet (30.5 meters), onto land.
What is a tsunami and why do they happen? - BBC Newsround
Jul 31, 2025 · Most tsunamis are caused by underwater earthquakes. When the sea floor suddenly moves, it displaces water, pushing it up and out, creating a wave. Volcanoes …