Question

How can the ground in Alaska become unstable?

7 months ago

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2 Replies

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Sabina Zemlak


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2 Answers

Jacqueline M Profile Picture

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There are two reasons for this. Firstly, Alaska is in an area that has earthquakes and secondly during summer months melting permafrost (frozen sub-soil), forms marshland, known as 'muskeg' which makes buildings and roads unstable.

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Tracey M Profile Picture

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In Alaska, degrading permafrost, steep slopes, heavy rain, retreating glaciers, ground-shaking from earthquakes, and isostatic rebound are important mechanisms that can trigger devastating landslides.

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