The earth’s outer layer is made up of several plates that are constantly moving. The movement of these plates results in three different types of boundaries: convergent boundaries, the plates move into each other; divergent boundaries, the plates move apart; and transform, where the plates move parallel to each other. Fortunately, all of the movements around these boundaries are incredibly slow and very rarely result in drastic natural phenomena, but when they do “act up” they can be very devastating. Each boundary has very specific natural side effects to their collisions. When two plates are convergent there are two possible consequences: one of the plates dives beneath the other one where it gets melted in the earth’s hot core and spit out later in a volcano, or the two plates collide rising up and turning into what we call a mountain. Two plates become divergent when hot magma from the mantle starts to rise pushing apart the plates ...
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... laws. Scientist made the assessment that the buildings with reinforced concrete and steel framed buildings fared the best under the pressure of the earthquake. With this in mind the city began pushing reinforced concrete and steel buildings onto every building built. The city also enacted a lateral wind load requirement of 30 pounds per foot, which was found to be the amount that would be able to withstand an earthquake. Many of the other building codes adjustment were thwarted by some interest groups, so companies would not be discouraged from building in San Francisco. They were able to sell that most of the damage to San Francisco was done by the fire and that the earthquakes damage was very minor. San Francisco would have to wait until 1925 to employ all of the proper building code to prepare for earthquakes, when the Santa Barbara earthquake hit San Francisco.
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- The relationship between the fault line and the people living along it is a mixture of misconception, fear, and nonchalance. Movies such as this year’s blockbuster, San Andreas, have given people a skewed perception of what may happen when the next “big one” hits. For example, even the largest earthquake the San Andreas could produce could not cause a tsunami large enough to swell over San Francisco. “The really big tsunamis, like the one that hit Japan, are caused by earthquakes that generate a major displacement of the ocean floor,” says Thomas Jordan, director of the Southern California Earthquake Center.... [tags: Earthquake, Fault, California, Shear]
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726 words (2.1 pages)
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1149 words (3.3 pages)
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907 words (2.6 pages)
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1003 words (2.9 pages)
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517 words (1.5 pages)