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प्रश्न
How is the intensity of an earthquake measured?
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उत्तर
- Richter Scale: The Richter scale measures the magnitude (the amount of energy released) of an earthquake. It is a numerical scale that ranges from 1 to 9, where each whole number increase represents a tenfold increase in the amplitude of seismic waves. It is based on mathematical calculations and provides a precise measurement of earthquake size.
- Mercalli Scale: The Mercalli scale measures the intensity of an earthquake based on its observed effects on people, buildings, and the Earth’s surface. It ranges from I to XII (1 to 12) and is a subjective scale, meaning it varies depending on the location and the experience of the people who feel the earthquake.
The Richter scale is more commonly used to measure the magnitude, whereas the Mercalli scale is useful for understanding the severity and impact of the earthquake on the surface.
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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.
What is called an earthquake?
State two natural causes of an earthquake.
What are known as seismic focus and epicenter with respect to an earthquake?
Describe how earthquakes are caused on the surface of the earth.
Earthquakes occur in the Mid-Atlantic belt.
Name three causes of Earthquakes.
Answer the following:
A volcanic eruption is one of the main causes of earthquakes.
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.
Give reasons for the following:
Internal processes are different from external processes.
Give reasons for the following:
Folding and faulting frequently go together.
The magnitude of an earthquake is measured by ______.
Seismology is the study of ______.
Choose the odd one
Define Earthquake.
The earthquake is a ______ activity.
