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Earthquakes - Example Papers

Earthquakes

have plagued our lives for as long as people have inhabited the earth. These dangerous acts of the earth have been the cause of many deaths in the past century. So what can be done about these violent eruptions that take place nearly with out warning? Predicting an earthquake until now has almost been technologically impossible. With improvements in technology, lives have been saved and many more will. All that remains is to research what takes place before, during, and after an earthquake. This has been done for years to the point now that a successful earthquake prediction was made and was accurate. This paper will discuss a little about in general and then about how predictions are ...

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to rock particles. Primary or compressional waves (P waves) send particles oscillating back and forth in the same direction as the waves are traveling, whereas secondary or transverse shear waves (S waves) impart vibrations perpendicular to their direction of travel. P waves always travel at higher velocities than S waves, so whenever an earthquake occurs, P waves are the first to arrive and to be recorded at geophysical research stations worldwide.(Associated Press 1993) Earthquake waves were observed in this and other ways for centuries, but more scientific theories as to the causes of quakes were not proposed until modern times. One such concept was advanced in 1859 by the Irish engineer Robert Mallet. Perhaps drawing on his knowledge of the strength and behavior of construction materials subjected to strain, Mallet proposed that occurred “either by sudden flexure and constraint of the elastic materials forming a portion of the earth's crust or by their giving way and becoming ...

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Earthquakes. (2008, December 15). Retrieved April 28, 2024, from http://www.essayworld.com/essays/Earthquakes/94677

"Earthquakes." Essayworld.com. Essayworld.com, 15 Dec. 2008. Web. 28 Apr. 2024. <http://www.essayworld.com/essays/Earthquakes/94677>

"Earthquakes." Essayworld.com. December 15, 2008. Accessed April 28, 2024. http://www.essayworld.com/essays/Earthquakes/94677.

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PAPER DETAILS

Added: 12/15/2008 06:46:52 PM
Category: Science & Nature
Type: Premium Paper
Words: 1173
Pages: 5

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