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Earthquakes, Layers of the Earth, And Causes of Earthquakes



Earthquakes, Layers of the Earth, Earthquakes Occur And Causes of Earthquakes

Earthquakes are the most frightening and destructive phenomena of nature. The scientific studies suggest that the Earthquakes are uncontrollable and unpredictable. Scientists have begun to predict the locations and likely hood of future Earthquakes. In this section, you are being introduced to the basics of the Earthquakes.

 Layers of the Earth

 Earth is nearly spherical in shape. The surface of the Earth is not smooth. There are mountains, valleys, plains, river, lakes oceans, thick forests, deserts and a variety of structures on the surface of the Earth. It has many ups and downs. These ups and downs are very small as compared to the size of the Earth. As a result, despite these ups and downs, the Earth appears smooth and spherical.  

 Where do Earthquakes Occur

The outer layer of the Earth consists of about a dozen large, irregularly shaped plates. These plates slide over, under and past each other.

Most earthquakes occur at the boundaries where the plates meet.

 Earthquakes can also occur within the plates.

Causes of Earthquakes

The Earthquakes can be caused due to the following reasons:

1 Volcanic eruptions

2 Man-made explosions

3 Dislocations (or faults) of the crust

4 Movements of the tectonic plates


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