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 other 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

Surviving the Tsunami – My Atomic Aunt is a 2013 documentary film written, directed, and co-produced by Kyoko Miyake remembers the Fukushima nuclear disaster that occurred on March 11, 2011 by focusing on how the disaster has affected her home town of Namie, Fukushima, Japan. The film develops into a personal reflection on how the Fukushima disaster has affected not only the world, but Miyake herself and the family she once knew. (Full article...)

List of selected articles

Events that can cause a tsunami

Submarine eruptions are volcano eruptions which take place beneath the surface of water. These occur at constructive margins, subduction zones and within tectonic plates due to hotspots. This eruption style is far more prevalent than subaerial activity. For example, it is believed that 70 to 80% of the Earth's magma output takes place at mid-ocean ridges. (Full article...)

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

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General images

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

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

Selected tsunami article

Yuta Tsunami (都並優太, Tsunami Yuta, born January 20, 1992 in Tokyo) is a Japanese football player for Nara Club. His father is Satoshi Tsunami currently manager of Briobecca Urayasu. (Full article...)

Selected tsunami articles

In the news

3 April 2024 – 2024 Hualien earthquake: A magnitude 7.4 earthquake strikes off the coast of Taiwan, prompting tsunami warnings for Okinawa Prefecture, Japan. A large section of the uninhabited Guishan Island collapses into the ocean. Nine people are killed in Taiwan, including four by rockfalls, with more than 930 others injured. (AP) (Al Jazeera)