tsunami depuis 2004

Retrieved November 11, 2008, Stanley, Jean-Daniel & Jorstad, Thomas F. (2005), "Soloviev, S., & Go, N., 1974 (English transl.

Tsunarisque: Le tsunami du 26 décembre 2004 à Aceh, Indonésie (Géographie) | Lavigne, Franck, Paris, Raphaël | ISBN: 9782859446437 | Kostenloser Versand für … 2013. " Tsunami waves do not resemble normal undersea currents or The term "tsunami" is a borrowing from the Japanese While Japan may have the longest recorded history of tsunamis, the sheer destruction caused by the Tsunamis are an often underestimated hazard in the The cause, in my opinion, of this phenomenon must be sought in the earthquake. tsunami, tunami, f. tsu harbour + nami waves.—"Tidal", The American Heritage Stedman's Medical Dictionary. Without an earthquake I do not see how such an accident could happen.The principal generation mechanism of a tsunami is the displacement of a substantial volume of water or perturbation of the sea.Tsunamis can be generated when the sea floor abruptly deforms and vertically displaces the overlying water. As a direct result of the Indian Ocean tsunami, a re-appraisal of the tsunami threat for all coastal areas is being undertaken by national governments and the United Nations Disaster Mitigation Committee. At the point where its shock has been the most violent the sea is driven back, and suddenly recoiling with redoubled force, causes the inundation. Her parents warned others minutes before the wave arrived, saving dozens of lives. The velocity of a tsunami can be calculated by obtaining the square root of the depth of the water in metres multiplied by the acceleration due to gravity (approximated to 10 m/sThe reason for the Japanese name "harbour wave" is that sometimes a village's As the tsunami approaches the coast and the waters become shallow, When the tsunami's wave peak reaches the shore, the resulting temporary rise in sea level is termed About 80% of tsunamis occur in the Pacific Ocean, but they are possible wherever there are large bodies of water, including lakes. (n.d.).

They are caused by earthquakes, landslides, volcanic explosions, glacier calvings, and A typical wave period for a damaging tsunami is about twelve minutes. Tectonic earthquakes are a particular kind of earthquake that are associated with the Earth's crustal deformation; when these earthquakes occur beneath the sea, the water above the deformed area is displaced from its equilibrium position.Tsunamis have a small wave height offshore, and a very long Examples of tsunamis originating at locations away from convergent boundaries include The cause of the Storegga sediment failure is unknown. As with earthquakes, several attempts have been made to set up scales of tsunami intensity or magnitude to allow comparison between different events.The first scales used routinely to measure the intensity of tsunamis were the In 2013, following the intensively studied tsunamis in 2004 and 2011, a new 12-point scale was proposed, the Integrated Tsunami Intensity Scale (ITIS-2012), intended to match as closely as possible to the modified The first scale that genuinely calculated a magnitude for a tsunami, rather than an intensity at a particular location was the ML scale proposed by Murty & Loomis based on the potential energy.Several terms are used to describe the different characteristics of tsunami in terms of their height:Drawbacks can serve as a brief warning.

Another landslide-tsunami event occurred in 1963 when a massive landslide from Some geologists claim that large landslides from volcanic islands, e.g.

In 2004, ten-year-old Tilly Smith of Surrey, England, was on Maikhao beach in Phuket, Thailand with her parents and sister, and having learned about tsunamis recently in school, told her family that a tsunami might be imminent. In general, landslides generate displacements mainly in the shallower parts of the coastline, and there is conjecture about the nature of large landslides that enter the water. Thus, the sea recedes in the drawback phase, with areas well below sea level exposed after three minutes. Phillip Lipscy, Kenji Kushida, and Trevor Incerti. During the next six minutes, the wave changes from a ridge to a trough, and the flood waters recede in a second drawback. In 2004, ten-year-old A tsunami cannot be precisely predicted, even if the magnitude and location of an earthquake is known. Along the United States west coast, in addition to sirens, warnings are sent on television and radio via the Some zoologists hypothesise that some animal species have an ability to sense subsonic Series of water waves caused by the displacement of a large volume of a body of water[a. Jap.

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