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Which mechanism most directly causes an earthquake's surface waves to amplify in specific regions?

A)Liquefaction increasing ground displacement
B)Increased seismic refraction by dense rock
C)Fault asperities rapidly releasing strain
D)Consolidation reducing sediment deformation

💡 Explanation

When seismic waves travel through loosely packed, water-saturated sediments, liquefaction occurs because shaking increases pore water pressure, decreasing effective stress and dramatically amplifying ground displacement. Therefore, amplification linked to liquefaction processes results, rather than refraction, asperities or consolidation, which have different effects altogether.

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