Multiple choice

Consider the following statements regarding earthquakes:

  1. In earthquakes, shocks are generated at a point known as the epicentre
  2. The point of origin of shock may be within the crust or mantle
  3. The more earthquake-prone areas are the margin of tectonic plates Which of the above statements are correct?

  1. 1, 2 and 3

  2. 1 and 2

  3. 1 and 3

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

Statement 1 is incorrect because the point of origin within the Earth is the focus (hypocenter), while the epicenter is the point on the surface directly above it. Statements 2 and 3 are correct as earthquakes can originate in the crust or upper mantle and are most frequent at tectonic plate boundaries.

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