Which mechanism causes increased regional subsidence following megathrust earthquakes?

💡 Explanation

Increased regional subsidence results from Elastic Rebound adjustments because the overriding plate deforms elastically during interseismic periods and then abruptly recoils during the earthquake, therefore lowering the land surface, rather than convective or isostatic processes.

• Which effect results when upwelling brings nutrient-rich water to surface regions with stratification?
• Which outcome occurs when increased sediment loading over a subducting oceanic plate reaches a threshold?
• Which mechanism causes uplift and mountain formation along a reverse fault?
• Which effect results when a long Southern Hemisphere river flows toward the equator?
• Which process dictates cave passage alignment along joints?
• Which outcome occurs when tectonic stress overcomes frictional locking?