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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:
The last of the earthquake waves to arrive on the surface of the earth are ___________ waves.
State two natural causes of an earthquake.
Describe the world’s distribution of earthquakes.
Name the important Earthquake-belts of the world.
OR
Indicate two major belts of Earthquakes.
What was the cause of the Koyna earthquake in India?
Describe the main type of Earthquake Waves.
Why are earthquakes related to volcanoes?
The earthquake waves are recorded by an instrument known as ______.
What is Seismograph?
On an outline map of the world, mark the Pacific Ring of Fire
