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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
Arrange the following statements in chronological order in which an earthquake occurs.
- The earth’s surface vibrates.
- The plates suddenly move.
- Due to the movements in the mantle, compression goes on increasing.
- Along the weak points ( faultlines) rocks break apart.
- Stored energy is released in the form of seismic waves.
What is known as the Richter scale?
What is the difference between seismic focus and epicenter?
Name the important Earthquake-belts of the world.
OR
Indicate two major belts of Earthquakes.
Why are earthquakes related to volcanoes?
Seismology is the study of ______.
Choose the odd one
Define Earthquake.
The earthquake is a ______ activity.
Give a note on Tsunami 2004.
