Which consequence results when pyroclastic flow rapidly enters seawater?

💡 Explanation

A sudden introduction of heat from pyroclastic flow causes explosive boiling and displacement of water, a process called phreatomagmatic eruption; therefore, a tsunami can initiate, rather than simply lahars or submarine slides, because energy focusing is key.

• Which risk increases when lava cools rapidly subaerially?
• Which mineralogical outcome results when a subducting oceanic plate undergoes dehydration?
• Which outcome occurs when unconsolidated regolith saturates with pyroclastic flows?
• Which process leads to the formation of braided streams on the surface of an alluvial fan?
• Which geomorphic outcome accelerates with alluvial terrace formation?
• Which geological risk increases when thawing permafrost destabilizes boreal forest soil?