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प्रश्न
What is known as seismic focus and epicenter with respect to an earthquake?
उत्तर
The point of origin of earthquake waves is called seismic focus and the center vertically above the seismic focus nearest to the earth’s crust is called the epicentre.
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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 _________.
Name one man-made cause of an earthquake.
Describe how earthquakes are caused on the surface of the earth.
How are earthquakes distributed over the globe?
How an earthquake is caused?
Name the instrument used to record Earthquakes.
Name three causes of Earthquakes.
Give two major causes of earthquakes.
Give reasons for the following:
The Belts of volcanic activity and earthquakes are roughly the same.
Give one word for the following :
An instrument used for recording all the earth tremors and earthquakes.
Give one word for the following :
The surface position immediately above the origin of an earthquake.
Seismology is the study of ______.
Choose the odd one
What is Seismograph?
The earthquake is a ______ activity.
Give a note on Tsunami 2004.
