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← GeographyWhich consequence results when groundwater interacts with seismic fault lubrication?
A)Suppressed stress-induced microcrack propagation
B)Increased rock dissolution rate along faults
C)Enhanced frequency of smaller earthquakes✓
D)Reduced surface deformation during interseismic periods
💡 Explanation
Enhanced earthquake activity occurs due to fault lubrication, where pore pressure rises because water reduces the static friction. This promotes stick-slip behavior, generating smaller, more frequent events rather than large ruptures, therefore more seismic activity, rather than suppressed propagation.
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