Which risk increases in a rapidly emptying magma chamber?

💡 Explanation

Caldera collapse risk increases due to pressure loss causing gravitational forces exceeding the decreased support, therefore large-scale structural failure occurs, rather than lava changes or lahar formation which depend on additional environmental factors.

• Which outcome occurs during subduction when plate hydration weakens crustal rock?
• Which outcome occurs when heavy tephra fall accumulates?
• Which outcome results when deep ocean upwelling stalls?
• Which outcome happens when rapid alluvial deposition occurs?
• Which condition causes increased cave system formation via dissolution?
• Which mechanism causes tsunami formation during a subduction zone earthquake with significant vertical displacement?