Essay Questions On Earthquakes

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He only felt that mother earth was angry with him and so caused the earthquakes and he always feared it.They may occur in any part of the world at any time.We are not sure of the underground movements of the earth and its pressure points, so one can only identify areas, where they are likely to occur.Its origin can be traced to the early days of earth formation.The cause of an earthquake is the movement or dislocation of lava and hot gases under the depths of the earth’s crust.When an earthquake is about to occur, there is first a mild movement of the mass of the earth as if it is moving as a cradle, such slight movements are usually quite a few in number and they serve as warning signals, that, more and fast movements can be expected in its wake.This slight quiver may or may not be followed by stronger tremors, but, if they do, people on earth in that particular area are in for big trouble.There are scales to measure the intensity of the earthquakes. It is a qualitative scale and not a quantitative scale and so not useful to measure the intensity. Richter scale is measured with the help of a graph which measures the energy that is released from within. If the earthquakes measures 7 points on Richter scale, it causes severe damage as it is of severe intensity.Those measuring 5 and less points do not cause much damage.But the intensity of the earthquakes is not the same in all the areas.The recent experiences reveal that not even a single area of India is earthquake free.

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