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Bookmark or Share- U.S. Tsunami Warning CentersEarthquake: Magnitude: 5.4 Origin Time: 3/20/2023, 4:25:29 PM. Depth: 132 mi. Lat: 53.8° N Lon: 169.6° W. Location: 65 miles NW of Nikolski, Alaska. Note: Times are local to your browser, unless otherwise indicated See the map or table below for more information. Alerts/Threats.
- Tsunamis | National Oceanic and Atmospheric AdministrationA 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. This force creates waves that radiate outward in all directions away from their source, sometimes crossing entire ocean basins.
- Tsunami Facts and Information - EnvironmentA 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...
- Tsunami - WikipediaA tsunami can occur in any tidal state and even at low tide can still inundate coastal areas. On April 1, 1946, the 8.6 M w Aleutian Islands earthquake occurred with a maximum Mercalli intensity of VI (Strong). It generated a tsunami which inundated Hilo on the island of Hawaii with a 14-metre high (46 ft) surge. Between 165 and 173 were killed.
- Tsunami | Definition, Meaning, & Facts | Britannicatsunami, (Japanese: “harbour wave”) also called seismic sea wave or tidal wave, 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 such a wave, but it is a misnomer, for the wave has no connection with the tides.
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