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← GeographyWhich outcome is exacerbated when groundwater pressure increases within fault zones?
A)Accelerated creep rate along rupture✓
B)Increased volcanic eruption frequency
C)Enhanced surface wave attenuation
D)Decreased sediment consolidation rates
💡 Explanation
Increased groundwater pressure near faults elevates pore pressure, which decreases the effective normal stress on the fault surfaces; this activates aseismic creep rather than brittle fracture because effective stress reduces frictional resistance; therefore, this accelerates creep instead of triggering an earthquake.
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