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प्रश्न
Name three causes of Earthquakes.
उत्तर
- Volcanic eruptions
- Tectonic causes
- Elasticity of Rocks
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संबंधित प्रश्न
For the formation of a rift valley, which of the following processes should occur in the earth’s crust?
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.
Fill in the blank:
Most earthquakes occur on account of the strain in the _________.
Fill in the blank:
The last of the earthquake waves to arrive on the surface of the earth are ___________ waves.
Fill in the blank:
The giant sea waves caused by earthquakes in the oceans are called ___________.
Fill in the blank:
About 70 percent of the earthquakes occur in the _________________ Belt.
What is called an earthquake?
State two natural causes of an earthquake.
What is known as the Richter scale? State its uses.
Explain the three types of earthquake waves.
What is the difference between seismic focus and epicenter?
How is the intensity of earthquakes measured? What instruments are used?
Name some Earthquakes which caused great damage.
What was the cause of the Koyna earthquake in India?
Describe the main type of Earthquake Waves.
Give one word for the following :
The surface position immediately above the origin of an earthquake.
The earthquake is measured by the ______ scale.
How the earthquake can be recorded?
In India, the Himalayan region and the ______ valley are prone to earthquakes.
Name the point where the vibrations originate in an earthquake.
