Which risk increases when seismic waves encounter a soil layer with high pore water pressure during an earthquake?

💡 Explanation

When seismic waves hit saturated soil, liquefaction occurs because the pore water pressure increases, reducing the effective stress between soil particles, causing the soil to behave like a liquid, undermining foundations. Therefore liquefaction-induced collapse results, rather than a tsunami, landslide, or subsidence which involve distinct geological processes and failure mechanisms.

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