The collapse of part of a mountain created a flash flood of a scale and speed no one had imagined, survivors said. Hundreds died, at least, and many more are missing.
Scientists and disaster response researchers said Nepal’s early flood warning system relied on a conventional network of river gauges in this remote region.
Survivors described the terrifying speed and power of the “boulders, sand and thick sludge” that killed hundreds and wiped out villages on the border between Nepal and Tibet.
The authorities reported hundreds of people missing and at least 160 people killed in the border region of Nepal and Tibet, where an avalanche of mud, water, ice and rocks smashed down.
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