Which volcanic event increases after lava dome collapse?

💡 Explanation

Increased pyroclastic density current frequency follows dome collapse due to increased exposure area available for gravitational collapse and gas release to generate density currents; rather than affecting lava viscosity, shield subsidence rates or rock crystallization, because the mechanism is gravitational instability.

• Which phenomenon explains cyclonic rotation reverses across hemispheres?
• Which outcome occurs when viscous magma continually erupts, forming an unstable lava dome?
• Which effect causes desertification on the leeward side of mountain ranges?
• Which geological effect results from slab rollback during subduction?
• Which risk increases substantially when heavy tephra falls on a catchment area feeding a hydroelectric dam?
• Which outcome occurs when increased soil acidity accelerates?