Question:
The reason for decreasing of seismic wave energy with the distance is
The reason for decreasing of seismic wave energy with the distance is
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As seismic waves travel away from their source, their energy steadily decreases. This loss of energy with distance is called attenuation.
Updated On: Jun 16, 2026
- Scattering
- Absorption
- Scattering and Absorption
- Entrapped air
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The Correct Option is C
Solution and Explanation
Concept:
As seismic waves travel away from their source, their energy steadily decreases. This loss of energy with distance is called attenuation.
Step 1:
Attenuation happens through two main physical processes. Scattering occurs when the wave energy is redirected in many directions by heterogeneities, cracks and grain boundaries in the rock. Absorption occurs when part of the wave energy is converted into heat due to internal friction in the medium (intrinsic damping).
Step 2:
Both effects act together as the wave propagates, so the overall reduction in seismic energy with distance is caused by scattering and absorption combined.
Answer: Option (3) — Scattering and Absorption.
As seismic waves travel away from their source, their energy steadily decreases. This loss of energy with distance is called attenuation.
Step 1:
Attenuation happens through two main physical processes. Scattering occurs when the wave energy is redirected in many directions by heterogeneities, cracks and grain boundaries in the rock. Absorption occurs when part of the wave energy is converted into heat due to internal friction in the medium (intrinsic damping).
Step 2:
Both effects act together as the wave propagates, so the overall reduction in seismic energy with distance is caused by scattering and absorption combined.
Answer: Option (3) — Scattering and Absorption.
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