Advertisements
Advertisements
प्रश्न
Give reasons why an earthquake occurs.
Advertisements
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
APPEARS IN
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 are known as seismic focus and epicenter with respect to an earthquake?
What is the difference between seismic focus and epicenter?
Name the instrument used to record Earthquakes.
Name some Earthquakes which caused great damage.
What was the cause of the Koyna earthquake in India?
On an outline map of the world, mark the Pacific Ring of Fire
Name the point where the vibrations originate in an earthquake.
What is the point of the earth’s surface directly above the focus called?
Choose the odd one.
focus, epicenter, vent, seismic waves
