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Consider the following statements about earthquakes:


1. The point where the energy is released is called the focus.


2. The point on the surface, nearest to the focus, is called the epicentre.


Which of the above statements is/are correct?

  • a)
    1 only

  • b)
    2 only

  • c)
    Both 1 and 2

  • d)
    None of these  

Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Consider the following statements about earthquakes:1. The point where...
The question is asking about the incorrect statement but here both statement are correct so the option (D) is correct.
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Community Answer
Consider the following statements about earthquakes:1. The point where...
Explanation:

Earthquakes are natural phenomena that occur due to the movement of tectonic plates. Let's understand the given statements in detail.

Focus of an earthquake:

The point where the energy is released is called the focus. It is also known as the hypocentre. It is the point beneath the earth's surface where the rock breaks and the energy is released. The focus is the origin of the earthquake, and it is the point where the seismic waves start to spread. The depth of the focus can vary from a few kilometers to hundreds of kilometers.

Epicentre of an earthquake:

The point on the surface, nearest to the focus, is called the epicentre. It is the point directly above the focus, on the earth's surface. It is the point where the earthquake is felt the strongest. The epicentre is usually located on the surface of the earth, and its distance from the focus can be calculated using the time difference between the arrival of P and S waves.

Correct statement:

Both statements are correct. The focus is the point beneath the earth's surface where the energy is released, and the epicentre is the point on the surface, nearest to the focus.

Conclusion:

Earthquakes are one of the most destructive natural disasters. Understanding the focus and epicentre of an earthquake is essential to study earthquakes and predict their occurrence. The given statements about earthquakes are correct, and both the focus and epicentre play a crucial role in understanding the nature of earthquakes.
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