Which outcome characterizes a deep-sea trench near a subduction zone undergoing sediment starvation?

💡 Explanation

Megathrust earthquakes increase on sediment-starved subduction zones because reduced sediment pore pressure decreases fault lubrication, facilitating stick-slip behavior, therefore promoting high-magnitude rupture events rather than steady creep behavior and smaller quakes.

• Which process drives the sinking of surface water in high latitude regions initiating deep ocean circulation?
• Which risk increases disproportionately following aftershocks on pre-stressed shallow faults?
• Which consequence results when a migrating barrier island submerges?
• On Arctic slopes, which outcome is exacerbated when soil cryoturbation disrupts the vegetation?
• Which effect increases when coastal wetlands experience increased salinity intrusion?
• Which ecological outcome results when coastal upwelling is disrupted by increased surface water temperatures?