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← GeographyWhich mechanism causes tsunami generation when a submarine earthquake occurs at convergent boundary?
A)Elastic rebound creating vertical displacement✓
B)Rayleigh waves inducing sea oscillations
C)Pyroclastic flows triggering water surges
D)Coriolis force amplifying tidal resonances
💡 Explanation
When a submarine earthquake occurs at a convergent boundary, elastic rebound causes rapid vertical displacement of the seafloor because accumulated stress is released. Therefore elastic rebound creates a tsunami, rather than Rayleigh waves, pyroclastic flows, or Coriolis force, which involve different energy transfer modes or geological settings.
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