Which risk increases when a stratovolcano's conduit collapses?

💡 Explanation

Increased pyroclastic flow speed results from debris avalanche causing lateral blast because depressurization causes gases to violently expand; therefore a stronger and faster lateral flow results, rather than increased tephra because the main vent is blocked.

• Which outcome rapidly develops due to intensified wave refraction?
• Which horizon's increased clay content results from eluviation within soil pedogenesis?
• Which process causes increased land subsistence when karst aquifers dissolve?
• Which outcome increases when wind velocity increases near a source of loess?
• Which outcome occurs when rapid differential heating amplifies the thermal effect within a stationary air mass?
• Which long-term outcome occurs when enhanced chemical weathering diminishes carbonate rock?