The Natural Disaster Of Tsunami

1775 WordsOct 2, 20178 Pages
Throughout the course of the earth, there have been many impressive geologic events that have taken place. Natural disasters ranging from volcanic eruptions, to massive earthquakes, to avalanches make their marks known after they strike. The natural disaster that I want to focus on specifically in this paper, however, is tsunami’s. Though Tsunami’s are arguably the most deadly natural disaster, they are also one of the most amazing geologic events to witness. Over the course of this paper, I will outline exactly what a tsunami is, the origins and basics of tsunamis, and the causes and effects. The formal definition of a tsunami is a series of ocean waves with very long wavelengths caused by large scale disturbances of the ocean. These…show more content…
During this specific kind of earthquake that happens beneath the sea, the water above the deformed area is displaced from its original equally weighted position. Then, in an attempt to regain its equilibrium, waves form as the displaced masses of water, which act under the influence of gravity. Because such large areas of the sea floor elevate and move, a tsunami can be created as a result. Another type of a specific earthquake that has the possibility of causing a tsunami is known as subduction earthquakes. These distinct earthquakes occur at plate boundaries when there is large vertical movements of the earth’s crust. The plates that engage with each other at these plate boundaries are called faults. Usually these earthquakes are caused when a denser oceanic plate slips under a less dense continental plate in a process known as subduction; hence where the name subduction earthquakes came from. These earthquakes are particularly effective in generating tsunamis compared to most other types of earthquakes. Another common cause of tsunamis is volcanic eruptions. Tsunamis caused by volcanoes are not nearly as common as tsunamis caused by earthquakes, but when they do occur, their effects can be just as devastating as an earthquake tsunami. There is a couple ways that volcanoes cause tsunamis, as I am about to explain. The first way a tsunami can be created
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