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Geography

Which geological outcome characterizes oceanic-continental subduction boundaries near plate locking?

A)Megathrust earthquake rupture initiation
B)Abyssal plain sediment accumulation
C)Passive margin thermal subsidence
D)Mid-ocean ridge basalt extrusion

💡 Explanation

Oceanic-continental subduction causes strain accumulation because plate locking temporarily prevents slip; therefore, a megathrust earthquake ensues at the rupture point, rather than gradual creep or volcanic eruption, under specified stress conditions on the fault plane.

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