Which risk increases when constructing a multi-story building foundation on unconsolidated alluvial soil near seismic fault lines?

💡 Explanation

When seismic waves propagate through unconsolidated, water-saturated alluvial soil, liquefaction occurs because the pore water pressure increases dramatically, reducing soil shear strength and causing it to behave like a liquid. Therefore, liquefaction-induced differential settlement results, rather than erosion, compaction, or oxidation which involve different geological processes.

• Which process causes accelerated crustal subsidence during large stratovolcano formation?
• Which risk increases when groundwater extraction weakens a strike-slip fault zone?
• Which outcome is directly amplified when a coastal gyre weakens?
• Which mechanism causes surface air convergence within a Hadley cell at the Intertropical Convergence Zone (ITCZ)?
• Which risk increases when a large coastal levee system experiences prolonged saltwater intrusion?
• Which process primarily maintains water balance in endorheic lakes located in arid regions?