GEOG 1350 Lecture 3: Geog1350 - Week 3 Tsunamis & Coastlines
26 Oct 2016
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Document Summary
Tsunami is the japanese word for harbour wave . They are produced by sudden displacement of water. Earthquakes that cause uplift of the seafloor. By triggering a landslide that enters water. Generally, an earthquake must be of at least m 7. 5 in order to trigger a tsunami. Stage 1: displacement of the seafloor sets waves in motion that transmit energy outward and upward, when the waves reach the surface of the water, they spread outward. 1 m): passengers on ships in the ocean rarely even notice tsunamis passing beneath them. Stage 3: as the tsunami approaches land, the water depth decreases, this results in the water piling up" and causes these effects: A decrease in spacing of the waves. A tsunami event consists of a series of large waves reaching shore than can last for several hours. The maximum horizontal and vertical distances that the largest wave of a tsunami reaches as it travels inland.
