Which risk increases in a caldera following resurgent dome formation?

💡 Explanation

The risk of phreatic eruptions increases because magma intrusion elevates groundwater temperatures causing increased steam pressure; therefore shallow steam explosions are more frequent rather than deeper magmatic ones.

• Which phenomenon arises when the ITCZ migrates across the equator, disrupting normal Hadley cell circulation?
• Which process exacerbates debris flow risk on an alluvial fan originating from glacial valleys?
• Which mechanism restricts magma ascent during subduction beneath continental crust composed largely of felsic rock?
• Which mechanism causes increased soil liquefaction following land reclamation using alluvial deposits rich in silt?
• Which outcome occurs when soluble bedrock undergoes focused infiltration?
• Which outcome occurs when CO2 outgasses in solution?