Multiple choice

Consider the following statements regarding earthquakes:

  1. In earthquakes, shocks are generated at a point known as the epicentre.
  2. The points of origin of the shocks may be within the crust or the mantle.
  3. The margins of tectonic plates are more earthquake-prone areas.

Which of the above statements are correct?

  1. 1, 2 and 3

  2. 1 and 2 only

  3. 1 and 3 only

  4. 2 and 3 only
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Statement 1 is incorrect because shocks originate at the hypocenter (focus), not the epicenter. The epicenter is the point on the surface directly above the hypocenter. Statement 2 is correct - earthquake foci can be in the crust or upper mantle. Statement 3 is correct - plate margins are indeed more earthquake-prone.

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