Which of the following is not an earthquake wave?

Correct option is B

Correct Answer: (B) M wave
Explanation:
→ P waves (Primary waves), S waves (Secondary waves), and L waves (Surface waves) are real seismic waves.
→ There is no earthquake wave called M wave in seismology.
→ Therefore, option (b) is correct.
Information Booster:
→ P waves travel fastest and through solids, liquids, and gases.
→ S waves travel only through solids.
→ L waves cause maximum destruction.
→ Seismic waves help locate earthquake epicenter.