Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← GeographyWhich mechanism increases building collapse risk during liquefaction caused by seismic waves?
A)Resonant frequency amplification of shaking
B)Shear strength reduction within saturated soil✓
C)Torsional stress from offset fault rupture
D)Surface wave reflection amplifying displacement
💡 Explanation
During liquefaction, seismic waves cause saturated soil to lose shear strength because pore water pressure increases, reducing effective stress, increasing collapse risk. Therefore diminished soil shear strength results, rather than resonance, torsion or reflection, all of which involve different triggering conditions and failure modes.
🏆 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 effect results when upper-level divergence aloft reinforces surface low pressure within a Hadley cell?
- Which event results from thawing permafrost causing differential ground subsidence beneath Arctic pipelines?
- Which mechanism causes oceanic stratification when freshwater runoff increases from glacial streams?
- Which geophysical effect results from weakened trade winds in the equatorial Pacific Ocean during El Niño?
- Which process most directly triggers undersea landslides after large earthquakes?
- Which mechanism causes regional uplift when a continental plate overrides a younger oceanic plate at a compressional boundary?
