Which erosion event results from high pore liquid pressure in sediments on steep volcanic slopes?

💡 Explanation

Debris flows on volcanoes begin with increased pore liquid pressure, triggering **liquefaction**, because this reduces effective stress, thereby causing slope failure and flow, rather than eruption or collapse, which require different trigger conditions.

• Which mechanism explains stream meandering increases due to reduced sediment load below dams?
• Which secondary effect is likely when liquefaction occurs due to earthquake shaking in regions with levees?
• Which mechanism primarily contributes to the U-shaped profile of a fjord?
• Which effect impedes infrastructure development in regions experiencing active solifluction?
• Which material redistribution occurs because prolonged andesitic lava flows build pressure?
• Which mechanism explains how subduction zones contribute to long-term carbon sequestration?