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← GeographyWhich outcome increases following a dam's reservoir impoundment near a strike-slip fault?
A)Induced seismicity earthquake frequency increases✓
B)Erosion lessens around the reservoir
C)Fault creep diminishes due to stabilization
D)Reservoir water quality automatically improves
💡 Explanation
Induced seismicity earthquake frequency increases because the increased pore pressure weakens the fault zone's effective strength near the reservoir via poroelasticity; therefore seismicity risks increase rather than decrease, because the water pressure perturbs the stress state.
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