Scientists Track Tropical Landslide Creeping Below an African City

Creeping from just a finger’s width up to a few feet per year, slow-moving landslides occur naturally throughout the world. They typically are detected inching downslope in rocky areas with high seasonal precipitation and clay-rich soil, and they can take months to years – even centuries – to develop. Yet they can also bring sudden violence. Thousands of landslides are flowing, slipping…
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