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An Earthquake, is when the earths surface shakes caused by rapid movement of the earths rocky outer layer. Earthquakes occur when energy stored within the earth, usually in the form of strain in rocks, suddenly releases. This energy is transmitted to the surface of the earth by earthquake waves. The study of earthquakes and the waves they create is called seismology. Thats why they call Scientists who study earthquakes, seismologists.
Some earthquakes are not strong enough to be felt by people, but the shaking caused by an earthquake is recorded by a seismogram. These are located all over the world at different points. Earthquakes cause alot of damage and has been the cause for many deaths around the world. The damage an earthquake causes depends on its size, how long it lasts, or the amount of shaking that occurs.
The size varies from small, shaking to large shocks felt miles away. Earthquakes can deform the ground, make buildings and Homes collapse, and create tsunamis. Tsunamis are very large ocean waves by an underwater earthquake or volcano eruption. Several million people have been killed by earthquakes around the world For example when over 240, 000 in the 1976 Tang-Shan, China, earthquake. Earthquakes have also caused severe damaged to earth all over the world. Now in days people are more cautious because there are such things as education, emergency planning, and constructing stronger, more flexible, safely designed structures, prevent the loss of lots of lives and lower the chance of damage.
Most Earthquakes are caused when pressure builds up within the rocky crust which is what happens when the tectonic plates collide with each other or slide past each other. Ground The shaking of the ground leads to landslides and other soil movement. These are the main damage-causing events that occur during an earthquake. Earthquakes occur when pressure within the crust increases slowly over hundreds of years and finally exceeds the strength and it causes an earthquake. Earthquakes also occur when people participate in the filling of reservoirs by putting stress in the earths crust... With improvements in technology, lives have been saved and many more will.
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Research essay sample on Earthquakes Occur Earthquake Damage
