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प्रश्न
Answer the following:
A volcanic eruption is one of the main causes of earthquakes.
उत्तर
A volcanic eruption is one of the main causes of earthquakes because volcanic earthquakes are caused by gas explosions. Such earthquakes occur either simultaneously with eruption or more commonly in the period preceding an eruption.
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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.
Fill in the blank:
___________ are the first earthquake waves to be recorded on a seismograph of an earthquake.
State two natural causes of an earthquake.
Name one man-made cause of an earthquake.
Describe how earthquakes are caused on the surface of the earth.
Explain the three types of earthquake waves.
How is the intensity of earthquakes measured? What instruments are used?
What is an Earthquake?
Name the important Earthquake-belts of the world.
OR
Indicate two major belts of Earthquakes.
Name the instrument used to record Earthquakes.
Why are earthquakes related to volcanoes?
Give reasons for the following:
Internal processes are different from external processes.
The earthquake waves are recorded by an instrument known as ______.
Define Earthquake.
What is Seismograph?
The earthquake is a ______ activity.
In India, the Himalayan region and the ______ valley are prone to earthquakes.
Name the point where the vibrations originate in an earthquake.
Choose the odd one.
focus, epicenter, vent, seismic waves
