GEOG 1350 Chapter 4: CHAPTER 4
16 Aug 2016
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Document Summary
Series of waves caused by a large displacement of water that have extremely long wave lengths. Events that can trigger tsunamis are large earthquakes, landslides, explosive volcanic eruption or an impact in the ocean (comet, meteor) The run up of a tsunami is the maximum horizontal and vertical distances that the largest wave reaches at it travels inland. A distant tsunami travels thousands of kilometers across the open ocean and strikes remote shorelines with little loss of energy. A local tsunami affects shorelines near the source of an earthquake. Landslide triggered tsunamis: the landslide falls from mountains into large bodies of water, these landslides are sometimes triggered by earthquakes. Most prominent example is lituya bay in alaska. The rockslide plunged into the bay and displaced sea water that ran up the opposite valet wall to an elevation of 525m, destroying all forestry in the way.
