Which risk increases when an oceanic plate subducts beneath a continental plate with high sediment cover?

💡 Explanation

When an oceanic plate subducts beneath a continental plate with high sediment cover, lubrication of the subduction zone occurs because the sediment reduces friction between plates, allowing greater stress accumulation. Therefore, the risk of megathrust earthquakes increases rather than decreasing magma viscosity, forming ultra deep trenches or a slower rate of convergence each requires distinct geological conditions.

• Which mechanism causes long-term subsidence in sedimentary basins along active strike-slip faults?
• Which atmospheric effect amplifies cyclone intensity during El Niño conditions in the western Pacific?
• Which outcome occurs when sediment pore pressure reduces during subduction?
• Which type of seismic hazard risk increases following triggered creeping fault behavior?
• Which failure mode becomes progressively more risky as alluvial fans aggrade in tectonically active regions?
• Which outcome primarily results when coastal upwelling brings deep ocean water to the surface?