Tsunami - Wikipedia
A tsunami (/(t) s uː ˈ n ɑː m i, (t) s ʊ ˈ-/ (t)soo-NAH-mee, (t)suu-; [1] [2] [3] [4] from Japanese: 津波, lit. 'harbour wave', [5] pronounced) is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake.
U.S. Tsunami Warning Centers
Dec 5, 2024 · Your official U.S. government weather forecasts, warnings, meteorological products for forecasting the weather, tsunami hazards, and information about seismology.
Tsunami | Definition, Meaning, & Facts | Britannica
Dec 26, 2024 · What is a tsunami? A tsunami is a catastrophic ocean wave, usually caused by a submarine eruption. Waves radiate outward from the generating impulse at speeds of up to 500 miles (800 km) per hour, reaching maximum heights of 100 feet (30 metres) near coastal areas.
Tsunami advisory lifted after 6.9 magnitude earthquake rattles ...
2 days ago · Japan’s Meteorological Agency withdrew a tsunami advisory after a 6.9 magnitude earthquake occurred off the coast of southwest Japan. The quake struck shortly after 9:19 p.m. local time (7:19 a ...
List of tsunamis - Wikipedia
A tsunami hitting a coastline. This article lists notable tsunamis, which are sorted by the date and location that they occurred.. Because of seismic and volcanic activity associated with tectonic plate boundaries along the Pacific Ring of Fire, tsunamis occur most frequently in the Pacific Ocean, [1] but are a worldwide natural phenomenon.They are possible wherever large bodies …
The science behind tsunamis | National Oceanic and Atmospheric ...
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 travel in all directions across the ocean or body of water. Not all earthquakes create tsunamis.
Tsunami Facts and Information - National Geographic
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. These walls of water can cause widespread destruction when...
What is a tsunami? - NOAA's National Ocean Service
A tsunami is a series of waves caused by earthquakes or undersea volcanic eruptions. On September 29, 2009, a tsunami caused substantial damage and loss of life in American Samoa, Samoa, and Tonga. The tsunami was generated by a …
Tsunami Facts: How They Form, Warning Signs, and Safety Tips
Apr 2, 2007 · A tsunami is a series of great sea waves caused by an underwater earthquake, landslide, or volcanic eruption. More rarely, a tsunami can be generated by a giant meteor impact with the ocean.
What Is a Tsunami? | NASA Space Place – NASA Science for Kids
Jan 2, 2025 · Tsunami is a Japanese word that means "harbor wave." It is a large wave caused by movements in Earth's outer layer, or crust, which move ocean water. For example, an earthquake or a volcano in the ocean could cause a tsunami. Earth's crust is made up of pieces called tectonic plates. An earthquake happens when these plates push against each ...