Which outcome occurs when pore pressure rises rapidly during seismic shaking?

💡 Explanation

A rise in pore pressure during seismic shaking causes decreased effective stress. This promotes slope instability via the mechanism of liquefaction, because the soil loses strength; therefore debris flows become more likely, rather than a decrease in aftershocks.

• Which phenomenon significantly alters coastal stream flow direction during tidal shifts?
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• Which outcome commonly occurs from increased silt weathering in loess deposits?
• Which risk increases during prolonged flooding of alluvial plains containing fine silt deposits?
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