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← GeographyWhich outcome occurs when increased sediment load overwhelms accretionary wedge strength?
A)Seismic wave propagation dampens rapidly
B)Tsunami generation risk increases sharply✓
C)Volcanic activity gradually diminishes
D)Geothermal vent formation becomes less frequent
💡 Explanation
Tsunami risk increases due to sudden, large-scale submarine landslides driven by gravitational collapse. This occurs because the underconsolidation mechanism triggers wedge failure; therefore, a tsunami is more likely, rather than dampened waves or modified volcanism.
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