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← GeographyWhich phenomenon limits earthquake magnitude at subduction zones where aseismic creep dominates?
A)Reduced stress accumulation on fault planes✓
B)Increased pore fluid pressure in sediments
C)Metamorphic alteration of oceanic crust
D)Changes in mantle convection patterns
💡 Explanation
When aseismic creep dominates, continuous slow sliding releases built-up tectonic stress because the fault planes do not lock as strongly, limiting the maximum energy released in earthquakes. Therefore, reduced stress accumulation limits earthquake magnitude, rather than pressure, alteration, or convection which affect magma formation and viscosity instead.
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