Portal:Tsunamis
Portal:Tsunamis
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.
The Tsunami Evaluation Coalition (TEC) was a unique learning and accountability initiative in the relief and development sector. It was first established in February 2005 to carry out joint evaluations of the response to the Asian earthquake and tsunamis of 26 December 2004. (Full article...)
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The following are images from various tsunami-related articles on Wikipedia.
Tsunami Early Warning Tower board in Hikkaduwa, Sri Lanka (from Tsunami warning system)
Evacuation route sign in a low-lying coastal area on the West Coast of the United States (from Tsunami warning system)
When the wave enters shallow water, it slows down and its amplitude (height) increases. (from Tsunami)
Over-riding plate bulges under strain, causing tectonic uplift. (from Tsunami)
Japanese Tsunami warning sign (from Tsunami warning system)
Diagram showing several measures to describe a tsunami size, including height, inundation and run-up (from Tsunami)
Plate slips, causing subsidence and releasing energy into water. (from Tsunami)
The wave further slows and amplifies as it hits land. Only the largest waves crest. (from Tsunami)
Figure 1: Diagram showing how earthquakes can generate a tsunami. (from Tsunamis in lakes)
Evacuation route sign on the pavement in Kamakura, Japan (from Tsunami warning system)
Calculated travel time map for the 1964 Alaska tsunami (in hours) (from Tsunami)
Satellite image of Lake Kivu (from Tsunamis in lakes)
Tsunami warning system in East Timor (from Tsunami warning system)
Mast 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)
An 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)
The energy released produces tsunami waves. (from Tsunami)
Lisbon earthquake and tsunami in November 1755 (from Tsunami)
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- 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)
- Select [►] to view subcategories
- List of tsunamis
- Tsunami earthquake
- Tsunami warning system
- Tsunamis in lakes
- Tsunami deposit
- Deep-ocean Assessment and Reporting of Tsunamis
- Tsunami Advisory Center of the Ministry of National Resources
- Tsunami bomb
- Meteotsunami
- NOAA Center for Tsunami Research
- Indian Ocean Tsunami Warning System
- Pacific Tsunami Warning Center
- Submarine earthquake
- UNMAI
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