Which geological hazard increases when rapid glacial melting destabilizes volcanic slopes in Iceland?

💡 Explanation

When glaciers melt rapidly, the reduction in ice mass loading destabilizes volcanic slopes, causing increased frequency jökulhlaups because meltwater accumulates beneath ice which then it bursts out releasing the water which can be further induced from heating from volcano. Therefore a jökulhlaup is the increased threat, rather than pyroclastic flows, gas emission changes, or lava flow viscosity which are controlled by different mechanisms.

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