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A tsunami earthquake can be defined as an undersea earthquake for which the surface-wave magnitude M s differs markedly from the moment magnitude M w, because the former is calculated from surface waves with a period of about 20 seconds, whereas the latter is a measure of the total energy release at all frequencies. [2]
A tsunami hitting a coastline. This article lists notable tsunamis, which are sorted by the date and location that they occurred.. Because of seismic and volcanic activity associated with tectonic plate boundaries along the Pacific Ring of Fire, tsunamis occur most frequently in the Pacific Ocean, [1] but are a worldwide natural phenomenon.
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. A tsunami warning system is being installed in the Indian Ocean. One of the deep water buoys used in the DART tsunami warning system
The 2004 Indian Ocean tsunami at Ao Nang, Krabi Province, Thailand. A tsunami (/(t) s uː ˈ n ɑː m i, (t) s ʊ ˈ-/ (t)soo-NAH-mee, (t)suu-; from Japanese: 津波, lit. 'harbour wave', pronounced) 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.
Diagram showing how earthquakes can generate a tsunami. Tsunamis in lakes can be generated by fault displacement beneath or around lake systems. Faulting shifts the ground in a vertical motion through reverse, normal or oblique strike slip faulting processes, this displaces the water above causing a tsunami (Figure 1).
A Body is being retrieved after few days of ordeal at Nagapattinam on 2 January 2005 A scene of devastation caused by Tsunami waves in Kalapet village near Pondicherry An All Party Meeting to discuss Relief and Rehabilitations Measures of Tsunami Tragedy held in New Delhi on 9 January 2005. This disaster affected a total of fourteen regions. [3]
A massive tsunami with waves up to 30 m (100 ft) high, known as the Boxing Day Tsunami after the Boxing Day holiday, or as the Asian Tsunami, [10] devastated communities along the surrounding coasts of the Indian Ocean, killing an estimated 227,898 people in 14 countries, violently in Aceh , and severely in Sri Lanka, Tamil Nadu , and Khao Lak ...
The following 63 pages use this file: 1741 eruption of Oshima–Ōshima and the Kampo tsunami; 2011 Tōhoku earthquake and tsunami; 2022 Hunga Tonga–Hunga Haʻapai eruption and tsunami; Deep-ocean Assessment and Reporting of Tsunamis; Garth tsunami; Indian Ocean Tsunami Warning System; List of tsunamis; List of tsunamis in Europe