Multiple choice

Consider the following statements:

  1. P-wave are the first seismic waves to reach a place.
  2. S-waves travel only through liquids
  3. Arrival time of P and S-waves is used to locate the epicentre
  4. Richter scale is a logarithmic scale. Which of the statements given above are correct?

  1. 1, 2 and 3

  2. 1, 3 and 4

  3. 1 and 4

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

P-waves (primary) arrive first at seismic stations (statement 1 correct). S-waves (shear) travel through solids but NOT liquids (statement 2 wrong). The time difference between P and S arrivals is used to triangulate epicenter location (statement 3 correct). Richter scale is logarithmic (statement 4 correct). Therefore statements 1, 3, and 4 are correct (option B).

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