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What caused the landslide to be reactivated?

April 26, 2017caused landslide REACTIVATED

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What caused the landslide to be reactivated?

1 Answer

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Several record rainfalls occurred in the 1930s and it is thought that they caused the Sumas Mountain landslide to be re-activated. While logging on steep slopes can contribute to landslides, this is not believed to be the cause behind re-activating the Sumas Mountain landslide.