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Earthquakes Essay

904 words - 4 pages

Assignment: Earthquakes
Axia Colleges of the University of Phoenix

To understand why the Earth moves the way that it does along and through its diverse layers, we must have a better understanding of the physical science surrounding both plate tectonics, and earthquakes. This is a summation on earthquakes; what causes earthquake to occur, the effects of earthquakes on surroundings, how the strength of earthquakes are measured, and the regions in which earthquakes are most likely to take place. ...view middle of the document...

Energy remains once that fault becomes clutched because of that friction; this is known as plate motion which can cause the rocks near to the clutched segment to change shape and break down. At this point, this strain becomes overwhelming, and that energy is turned into forcible vibrations known as earthquakes (Murck, Skinner, Mackenzie, 2008).
These tremors are measurable despite the fact that they cannot be predicted by scales which specifies the intensity of an earthquake. By far, the most acknowledged scale is the Richter Magnitude Scale which was conceived by Charles Richter in 1935. This particular scale is dependent upon the amplitudes of volatile waves registered on a device known as a seismograph, and is dependent upon the logarithmic scale or base 10. What this means is that for every increased whole number, the magnification of the land movement obtained through the seismograph becomes multiplied by 10. A great number of earthquakes which take place annually, render a reading of less than 3.0 and are virtually undetected as well as earthquakes which render a reading consisting of 10.0 or greater.
Another scale used in measuring earthquakes is the Movement Magnitude Scale. This is a scale which has the capability to measure the intensity of an earthquake through three factors: the rocks dimensions, the detachment size, and the measure of shift within the fault activity. What causes the major damage of an earthquake is the shaking in the ground which can venture throughout the Earth’s core which has the potential to ravage structures and well populated areas. This shaking is referred to as seismic waves and are able move substantial lengths. An earthquake can produce one of two forms of seismic wave.
The first type of wave is known as a compression or P wave. This wave is able to move through gases, solids, and liquids (Murck,...

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