Earthquaque Assignment - Sci 205

Earthquakes Assignment Assessment
Diana M. Cintron
Sci/205
April 11, 2010
Dr. Dillon, PhD

Earthquake Assignment Assessment
The Earths satellite shell is a set of plates called plate tectonics. According to [About.com Geology] the exposition of tectonic is a large scale structure. The plates are everlastingly changing positions and geologic evidence shows that they have trendd the uniform way in the early(prenominal). The accomplishment is very slow no more than than a centimeter a year. The movement of the plates is dual-lane in three ways: they move together (converge), the move apart (diverge), or they move past all(prenominal) former(a) [About.com Geology].
Earthquakes occur along faults, where capacious
blocks of rock are grinding past each other. Tectonic
motions produce directional pressure, which causes
rocks on either aspect of a large fracture to move past
each other. The movement is rarely smooth; usually
the blocks stick because of friction, which slows their
movement. Eventually, the friction is overcome and the
blocks strip show abruptly, releasing pent-up energy with a
huge snapâ€"an seism (The Plate Tectonic Model Page 107).

Plates diverge at volcanic zones by the ocean basins. These are long huge cracks were lava rises from below and freezes into the Lithosphere (About.



com Geology).
In which plates move past each other is call a transform boundary. These are not that common as the converge or diverge plates and the intimately common one is the San Andreas fault of California [About.com Geology]. The Pacific edge of the US is the region most susceptible to earthquakes [essortment.com]. Recently, there has been more activity specifically in the Caribbean plate (Haiti), the West seacoast of South America (Chile), the Pacific Islands and other areas in the Asia continent. As I understand it when there is one shift in the plates this creates a global shifting to the other plates in earth. As I mentioned before these plates move all the time scarcely when an earthquake occurs the...If you want to get a full essay, launch it on our website: Orderessay



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