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Tsunami

Gary Payton. Tsunami. What a tsunami is?.

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Tsunami

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  1. Gary Payton Tsunami

  2. What a tsunami is? • A tsunami is a harbour wave is a series of water waves caused by the displacement of a large volume of a body of water, generally an ocean or a large lake. Earthquakes, volcanic eruptions and other underwater explosions (including detonations of underwater nuclear devices), landslides, glacier calvings, meteorite impacts and other disturbances above or below water all have the potential to generate a tsunami.

  3. Damages • Damage from a tsunami as an aerial view of damage in the Sendai region with black smoke coming from the Nippon Oil Sendai oil refinery

  4. Earthquake in paltes • Drawing of tectonic plate boundary before earthquake • 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

  5. Tectonic plates • Overriding plate bulges under strain, causing tectonic uplift

  6. Tectonic plates • Plate slips, causing subsidence and releasing energy into water

  7. Energy in tsunami • The energy released produces tsunami waves. • Tsunamis have a small amplitude offshore, and a very long wavelength often hundreds of kilometers long, whereas normal ocean waves have a wavelength of only 30 or 40 meters),

  8. Tsunami features • A large tsunami may feature multiple waves arriving over a period of hours, with significant time between the wave crests. The first wave to reach the shore may not have the highest run up. • The wave further slows and amplifies as it hits land. Only the largest waves crest

  9. Sign of a tsunami waring • 100 ft out- 100 ft up

  10. Tsunami in japan • erased Japan's northeastern coast, where water, electricity, and telecommunications are largely unavailable. Destroyed by tsunami

  11. Leftovers Tsunami in Japan when it was over killed over 20,000

  12. sources • "Tsunami Terminology". NOAA. Retrieved 2010-07-15. • Barbara Ferreira (April 17, 2011). "When icebergs capsize, tsunamis may ensue". Nature. Retrieved 2011-04-27. • "How do earthquakes generate tsunamis?". University of Washington. • Prof. Stephen A. Nelson (28-January–2009)."Tsunami". Tulane University. Retrieved 2009-09-09.

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