Which risk escalates when a large earthquake impacts a coastal region featuring significant unconsolidated sediment deposits?

💡 Explanation

When a large earthquake impacts unconsolidated sediments, liquefaction occurs because ground shaking increases pore water pressure, reducing effective stress, and soil strength. Therefore liquefaction-induced structural failures result, rather than amplified tsunamis, increased landslides or triggered volcanism which involve other causal factors.

• Which risk increases when rapid alluvial fan deposition blocks a mountain valley outlet?
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• Which long-term outcome results from sediment disruption of tidal inlet hydrodynamics?
• Which phenomenon causes poleward heat redistribution from the tropics through atmospheric cells?
• Which outcome results when isostatic rebound lags accelerated melting of fjord glaciers?
• Which outcome occurs when geothermal plant injection increases?