Liquefaction occurs when?

Liquefaction occurs when water-saturated soil loses its strength and behaves like a liquid during strong ground shaking, typically caused by earthquakes.

Liquefaction happens in loose, unconsolidated soils like sands and silts, especially in areas with a high water table near rivers, lakes, or oceans. During seismic events, vibrations increase pore water pressure between soil particles, reducing friction and soil strength. This process leads to ground deformation, structural damage, and landslides, endangering buildings and infrastructure. Proper understanding and site evaluations help mitigate these risks in vulnerable areas.