Q. Consider the following statements with reference to aftershocks of earthquake:
1.Aftershocks are a sequence of earthquakes that happen after a larger mainshock.
2.Aftershocks can continue for a longer period of time.
3.Aftershocks are stronger than the main seismic event.
Which of the statements given above is/are correct?

[A] 1 and 2 only

[B] 1 only

[C] 2 and 3 only

[D] 3 only

Answer: A
Notes:

Explanation –

Statement 1 and 2 are correct. Aftershocks are a sequence of earthquakes that happen after a larger mainshock. Aftershocks can continue for days, weeks, months, or even years.

Statement 3 is incorrect. Aftershocks are weaker than the main seismic event but they are strong enough to cause the damage.

Source: The Indian Express