Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← GeographyWhich outcome occurs when a confined aquifer's overburden pressure reduces rapidly due to a large earthquake?
A)Regional subsidence risk then liquefaction✓
B)Increased artesian well flow
C)Enhanced contaminant plume migration
D)Saltwater intrusion contamination increases now
💡 Explanation
Regional subsidence risk increases, which can lead to increased liquefaction potential because effective stress decreases due to the reduced overburden, destabilizing the soil matrix through the mechanism of effective stress transfer. Therefore, subsidence risk increases and potentially ground shaking, rather than altered fluid flow patterns only.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Geography →- Which process increases discharge variability downstream in alluvial rivers?
- Which outcome occurs when tectonic plate movement constricts oceanic straits?
- Which consequence results when coast proximity reduces gyre vorticity?
- Which fault behavior results when fault creep slows?
- Which outcome occurs when ice wedges diminish cirque walls?
- Which risk increases when warming temperatures accelerate thermokarst formation in Arctic permafrost regions?
