Which increased risk occurs when fjord sediment destabilizes?

💡 Explanation

A sudden destabilization leads to increased risk of submarine landslides and thereby the possible occurrence of devastating tsunamis; this occurs through sediment consolidation and slope angle increase, because the fjord walls are very steep. Therefore, a slide could trigger a wave, rather than methane release.

• Which mechanism disrupts marine ecosystem nutrient cycling given increased Arctic glacial meltwater inflow?
• Which risk increases when locked fault zones release?
• Which outcome occurs when significant tephra deposition blankets vegetation?
• Which outcome results when speleogenesis alters groundwater acidity?
• Which risk escalates as near-surface permafrost thaws in high-latitude coastal regions due to thermokarst processes?
• Which risk increases on a newly-formed volcanic island lacking vegetation?