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प्रश्न
Give reasons why an earthquake occurs.
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उत्तर
Because of the movements occurring in the interior of the earth, tremendous tension is created in the earth’s crust. When the tension goes beyond limits, the energy is released in the form of waves. This results in the trembling of the earth’s surface, i.e., an earthquake occurs.
The causes of earthquakes are as follows:
- Moving the plates
- Colliding of plates
- Plates sliding one below the other
- Forming of fractures in rock layers due to tension in the interior of the earth.
- Occurring volcanic eruptions
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संबंधित प्रश्न
Fill in the blank:
About 70 percent of the earthquakes occur in the _________________ Belt.
Name two man-made causes of an earthquake.
How are earthquakes useful?
How is the intensity of an earthquake measured?
Describe the world’s distribution of earthquakes.
Name the important Earthquake-belts of the world.
OR
Indicate two major belts of Earthquakes.
Answer the following:
A volcanic eruption is one of the main causes of earthquakes.
The earthquake is a ______ activity.
In India, the Himalayan region and the ______ valley are prone to earthquakes.
What is the point of the earth’s surface directly above the focus called?
