Which hazard increases for loose sediments during intense seismic shaking from an earthquake?

💡 Explanation

During seismic shaking, loose sediments undergo soil liquefaction because pore water pressure increases, causing a loss of shear strength, and amplifying surface wave propagation. Therefore wave amplification results, rather than reduced landslides or tsunami, which need other mechanisms, such as soil stabilization or offshore displacement.

• Which process primarily controls oxbow lake salinity in an arid region with high evaporation rates?
• Which outcome dominates when a locked subduction zone ruptures?
• Which process primarily accelerates cirque formation at high altitudes due to increased freeze thaw weathering?
• Which outcome occurs when prolonged floodplain sedimentation exceeds levee accretion rates in fluvial systems?
• Which risk increases when dust deflation lowers soil elevation?
• Which risk increases when constructing structural foundations on sloping alluvial deposits?