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← GeographyNear subduction plate boundaries, which risk increases when fault locking intensifies?
A)Tsunami amplification downstream✓
B)Increased fault creep magnitude
C)Localized magnetic field reversal
D)Decreased frequency small tremors
💡 Explanation
Fault locking increases accumulated elastic strain; therefore, rupture during unlocking leads to magnitude increases seismic release; hence a greater tsunami because a higher moment magnitude earthquake, rather than aseismic creep occurs.
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