Portal:Tsunamis

The Tsunami portal

The 2004 Indian Ocean tsunami at Ao Nang, Krabi Province, Thailand

A tsunami (/(t)suːˈnɑːmi, (t)sʊˈ-/ (t)soo-NAH-mee, (t)suu-; from Japanese: 津波, lit. 'harbour wave', pronounced [tsɯnami]) 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. Earthquakes, volcanic eruptions and underwater explosions (including detonations, landslides, glacier calvings, meteorite impacts and other disturbances) above or below water all have the potential to generate a tsunami. Unlike normal ocean waves, which are generated by wind, or tides, which are in turn generated by the gravitational pull of the Moon and the Sun, a tsunami is generated by the displacement of water from a large event.

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The Pacific Tsunami Museum is housed in a former First Hawaiian Bank building in downtown Hilo, Hawaii

The Pacific Tsunami Museum (originally, the Hilo Tsunami Museum) is a museum in Hilo, Hawaii dedicated to the history of the April 1, 1946 Pacific tsunami and the May 23, 1960 Chilean tsunami which devastated much of the east coast of the Big Island, especially Hilo. The museum also has a mission to educate people in general about tsunamis, including the 2004 Indian Ocean earthquake and tsunami. It is located at 130 Kamehameha Avenue, at the intersection of Kamehameha and Kalakaua in downtown Hilo. (Full article...)

List of selected articles

Events that can cause a tsunami

In seismology, a tsunami earthquake is an earthquake which triggers a tsunami of significantly greater magnitude, as measured by shorter-period seismic waves. The term was introduced by Japanese seismologist Hiroo Kanamori in 1972. Such events are a result of relatively slow rupture velocities. They are particularly dangerous as a large tsunami may arrive at a coastline with little or no warning. (Full article...)

List of events articles
Earthquake Submarine earthquake Submarine eruption Landslide Glacier calving Meteorite impact

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General images

The following are images from various tsunami-related articles on Wikipedia.

Image 1Diagram showing several measures to describe a tsunami size, including height, inundation and run-up (from Tsunami)
Image 2The energy released produces tsunami waves. (from Tsunami)
Image 3Evacuation route sign on the pavement in Kamakura, Japan (from Tsunami warning system)
Image 4Calculated travel time map for the 1964 Alaska tsunami (in hours) (from Tsunami)
Image 5Drawing of tectonic plate boundary before earthquake (from Tsunami)
Image 6An illustration of the rhythmic "drawback" of surface water associated with a wave. It follows that a very large drawback may herald the arrival of a very large wave. (from Tsunami)
Image 7Tsunami warning system in East Timor (from Tsunami warning system)
Image 8Plate slips, causing subsidence and releasing energy into water. (from Tsunami)
Image 9Satellite image of Lake Kivu (from Tsunamis in lakes)
Image 10Japanese Tsunami warning sign (from Tsunami warning system)
Image 11Evacuation route sign in a low-lying coastal area on the West Coast of the United States (from Tsunami warning system)
Image 12Tsunami aftermath in Aceh, Indonesia, December 2004 (from Tsunami)
Image 13Lisbon earthquake and tsunami in November 1755 (from Tsunami)
Image 14One of the deep water buoys used in the DART tsunami warning system (from Tsunami)
Image 15Diagram showing how earthquakes can generate a tsunami (from Tsunamis in lakes)
Image 16Over-riding plate bulges under strain, causing tectonic uplift. (from Tsunami)
Image 17Mast with warning system, and sign detailing escape routes, on the coast of Okumatsushima, Miyagi prefecture, Japan (this coast was severely hit by the 2011 tsunami) (from Tsunami warning system)
Image 18The wave further slows and amplifies as it hits land. Only the largest waves crest. (from Tsunami)
Image 19A seawall at Tsu, Mie Prefecture in Japan
Image 20Tsunami Early Warning Tower board in Hikkaduwa, Sri Lanka (from Tsunami warning system)
Image 21When the wave enters shallow water, it slows down and its amplitude (height) increases. (from Tsunami)
Image 22The 2004 Indian Ocean tsunami at Ao Nang, Krabi Province, Thailand (from Tsunami)

Selected tsunami article

Prehistoric tsunamis are tsunamis and so-called "megatsunamis" that occurred before recorded history. The events have been identified through oral tradition and/or geological evidence. Those events that have been identified through contemporary records are listed as historic tsunamis. (Full article...)

Selected tsunami articles