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.

Selected article

The Tsunami Warning, Education, and Research Act of 2014 (H.R. 5309) is a bill that would authorize the National Oceanic and Atmospheric Administration (NOAA) to spend $27 million a year for three years on their on-going tsunami warning and research programs. (Full article...)

List of selected articles

Events that can cause a tsunami

A mass of ice calves from the Perito Moreno glacier in Lago Argentino

Ice calving, also known as glacier calving or iceberg calving, is the breaking of ice chunks from the edge of a glacier. It is a form of ice ablation or ice disruption. It is the sudden release and breaking away of a mass of ice from a glacier, iceberg, ice front, ice shelf, or crevasse. The ice that breaks away can be classified as an iceberg, but may also be a growler, bergy bit, or a crevasse wall breakaway. (Full article...)

List of events articles
Earthquake Submarine earthquake Tsunami earthquake Submarine eruption Landslide Meteorite impact

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General images

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

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

Selected tsunami article

Yuta Tsunami (都並優太, Tsunami Yuta, born January 20, 1992 in Tokyo) is a Japanese football player who play as a Defender and currently play for J3 club, Nara Club. (Full article...)