Which risk increases because internal pressure is confined when magma domes block volcanic vents following an eruption?

💡 Explanation

A magma dome blocking a vent leads to increased pressures because, without release, volatile build-up increases the chance of destructive lateral blasts, rather than a Plinian eruption that requires direct vent access.

• Which process causes increased deposition of alluvial sediment at a river delta when average sea level rises steadily?
• Which phenomenon minimizes average displacement during large transform fault earthquakes?
• Which mechanism explains increased stalactite formation after rainfall events?
• Which process primarily drives the distribution of volcanic activity at subduction zones?
• Which outcome occurs when unidirectional winds steadily erode exposed rock surfaces in arid environments?
• Which risk escalates when human-constructed levees significantly constrain a deltaic river's natural floodplain?