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What is dammed lake?

Dammed lake refers to a natural dam formed by lava flows, lahars, glacial ice and late-neoglacial moraines or colluvium materials by blocking the river. Featuring loose materials and poor cementation, dammed lakes tend to outbreak easily and severely impact downstream regions. For example, the dammed lake created by the 1942 Tsaolin Landslide collapsed on May 18, 1951 and resulted in a catastrophic secondary disaster.

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