Which volcanic hazard leads to increased rates of glacial ice melt during a subglacial eruption?

💡 Explanation

When a subglacial eruption occurs, tephra is deposited onto the glacier surface, which lowers the albedo because the darker ash absorbs more solar radiation, increasing surface melt rates. Therefore depositing tephra leads to glacial ice loss, rather than other volcanic hazards directly melting ice.

• Which mechanism alters regional rainfall patterns associated with changes deep-ocean thermohaline circulation?
• Which risk increases when a building constructed on permafrost causes thawing of ground ice at the foundation?
• Which consequence results when excessive irrigation saturates agricultural soils?
• Which risk is amplified when increased stream power transports excessive alluvial sediment load across a subsiding floodplain?
• Which ecological outcome occurs when deep ocean upwelling declines?
• Which geologic event occurs when prolonged deflation lowers elevation?