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Consider the following statements about earthquake- 1. The point where the energy is released is called the focus of an earthquake, alternatively, it is called the epicenter. 2. The point on the surface, nearest to the focus, is called the hypocentre. 3. All-natural earthquakes take place in the lithosphere. 4. The most common ones are tectonic earthquakes. These are generated due to the sliding of rocks along a fault plane. Which of the statements given above is/are not correct?

Consider the following statements about earthquake- 1. The point where the energy is released is called the focus of an earthquake, alternatively, it is called the epicenter. 2. The point on the surface, nearest to the focus, is called the hypocentre. 3. All-natural earthquakes take place in the lithosphere. 4. The most common ones are tectonic earthquakes. These are generated due to the sliding of rocks along a fault plane. Which of the statements given above is/are not correct? Correct Answer 1 and 2 only

The incorrect statement is 1 and 2 only.

Key Points 

  • An earthquake is shaking or trembling of the earth’s surface, caused by the seismic waves or earthquake waves that are generated due to a sudden movement (sudden release of energy) in the earth’s crust (shallow-focus earthquakes) or upper mantle (some shallow-focus and all intermediate and deep-focus earthquakes).
  • The point where the energy is released is called the focus of an earthquake, alternatively, it is called the hypocentre. Hence, statement 1 is incorrect.
  • The point on the surface, nearest to the focus, is called the epicenter. Hence, statement 2 is incorrect.
  • All-natural earthquakes take place in the lithosphere. Hence, statement 3 is correct.
  • Additional Information

    • Types of Earthquakes:
    1. The most common ones are tectonic earthquakes. These are generated due to the sliding of rocks along a fault plane. Hence, statement 4 is correct.
    2. In the areas of intense mining activity, sometimes the roofs of underground mines collapse causing minor tremors. These are called collapse earthquakes.
    3. Ground shaking may also occur due to the explosion of chemical or nuclear devices. Such tremors are called explosion earthquakes.
    4.  A special class of tectonic earthquakes is sometimes recognised as a volcanic earthquake. However, these are confined to areas of active volcanoes.
    5. The earthquakes that occur in the areas of large reservoirs are referred to as reservoir induced earthquakes.

Related Questions

With reference to an earthquake consider the following statements. 1. The point where the energy of an earthquake is released is called the hypocentre. 2. The point on the surface, nearest to the focus of the earthquake, is called epicentre. 3. Epicentre is a point directly below the focus of an earthquake. Which of the statements given above is / are correct?
With reference to earthquakes, which of the following statements are correct? 1. Earthquakes largely occur along the converging plate boundaries. 2. Point of origin of the earthquake in the lithosphere is known as focus/Hypocentre. 3. The intensity of the earthquake decreases with distance from the epicentre. 4. The epicentre of the earthquake always remains over continents only. Select the correct answer using the code given below.
With reference to earthquakes, which of the following statements are correct? A. Earthquakes largely occur along the converging plate boundaries. B. Point of origin of earthquake in lithosphere is known as focus/hypocenter. C. Intensity of earthquake decreases with distance from the epicenter. D. Epicentre of earthquake always remains over continents only. Select the correct answer using the code given below.
With reference to the interior of the earth consider the following statements. 1] All natural earthquakes take place in the lithosphere. 2] The lithosphere refers to the portion of depth up to 200 km from the surface of the earth. 3] Earthquake waves are basically of four types — body waves, surface waves, rolling waves and shock waves. Which of the statements given above is / are correct?
Which of the following earthquakes are generated due to the sliding of rocks along a fault plane?
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Consider the following: Type of Rocks Process of formation 1.Igneous Rocks Formed out of existing rocks undergoing recrystallization 2.Sedimentary Rocks The result of the deposition of fragments of rocks by exogenous processes. 3.Metamorphic Rocks Solidified from magma and lava   Which of the above pair/s is/are correctly matched?
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In the following question, the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ passage is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/passage and find out which of the four combinations is correct. 1. Earthquakes are the shaking and moving of the ground when energy is released in waves.   P. These waves are similar to ocean waves, which move through water. Q. These waves are called seismic waves.  R. Seismic waves, however, move through the ground. S. Earthquakes can also be caused by other natural events, such as landslides and volcanoes.  6. Manmade earthquakes happen because of nuclear testing and mining explosions.