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Earthquakes
Beginning of essay
An earthquake is shaking or trembling of the earth that is volcanic or tectonic in origin.
"A broadly satisfying explanation of the majority of can be given in terms of what is called plate tectonics. The basic idea is that the Earth's outermost part also called the lithosphere consists of severa ....
Middle of essay
....ied Mercalli scale. However according to Dr. Pignataro "Even with such scales, the subjectivity of the observer renders their use less then perfect, since today even experienced seismologists sometimes assign different intensities to the same earthquake." If the magnitude of an earthquake is to be compared worldwide, a measure is needed that does not depend (as does intensity) on the density of the population and type of construction. A strictly quantitative scale that can be applied to earthqu.... |
| Number of words: 1146 |
Approximate pages: 5 |
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