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The term "tsunami" is a borrowing from the Japanese tsunami 津波, meaning "harbour wave." For the plural, one can either follow ordinary English practice and add an s, or use an invariable plural as in the Japanese.
684 Hakuhō earthquake, Nankai earthquake. Earthquake. The first recorded tsunami in Japan struck on 29 November 684 AD off the coast of the Kii, Shikoku, and Awaji region. The earthquake, estimated at a magnitude of 8.4, [40] was followed by a large tsunami, but there are no estimates of the number of deaths. [56]
Largest. 7.9 M w. 1802 Vrancea earthquake. Deadliest. 7.2 M w. 1977 Vrancea earthquake 1,578 killed. This is a list of earthquakes in Romania, including any notable historical earthquakes that have epicenters within the current boundaries of Romania, or which caused significant effects in this area.
The 5.9 earthquake caused freak waves in the Strait of Dover which were observed in England and France. [6] 30 January 1607. Bristol Channel, United Kingdom. 2,000. disputed tsunami caused by earthquake off Ireland. 27 March 1638. Sicily, Italy. 9,581–30,000.
In some regions, tsunami sirens are used to help alert the public. The Pacific Tsunami Warning Center (PTWC), located on Ford Island, Hawaii, is one of two tsunami warning centers in the United States, covering Hawaii, Guam, American Samoa and the Northern Mariana Islands in the Pacific, as well as Puerto Rico, the U.S. Virgin Islands and the British Virgin Islands in the Caribbean Sea.
227,898 dead [5] [6] On 26 December 2004, at 07:58:53 local time ( UTC+7 ), a major earthquake with a magnitude of 9.2–9.3 Mw struck with an epicentre off the west coast of northern Sumatra, Indonesia. The undersea megathrust earthquake, known by the scientific community as the Sumatra–Andaman earthquake, [8] [9] was caused by a rupture ...
A meteotsunami or meteorological tsunami [1] is a tsunami -like sea wave of meteorological origin. Meteotsunamis are generated when rapid changes in barometric pressure cause the displacement of a body of water. In contrast to impulse-type tsunami sources, a traveling atmospheric disturbance normally interacts with the ocean over a limited ...
A megatsunami is a tsunami with an initial wave amplitude measured in many tens or hundreds of metres. A megatsunami is a separate class of event from an ordinary tsunami and is caused by different physical mechanisms. Normal tsunamis result from displacement of the sea floor due to movements in the Earth's crust (plate tectonics).