Glacier collapse triggers deadly flash flood near Nepal-Tibet border
Satellite imagery and expert analysis indicate a large section of a glacier snout collapsed near the Nepal-China (Tibet) border, sending ice, rock and sediment hundreds of metres into a valley and triggering deadly flash floods. Experts including Vikram Gupta and Dan Shugar said images show the lower glacier breaking off near 5,200 metres and falling about 1,200 metres, with significant snowmelt in the 24 hours beforehand; Nepali authorities also flagged an earthquake minutes earlier as a possible trigger. The surge carried water, boulders and sediment into the Bhote Koshi and Trishuli rivers, raising levels up to nine metres and devastating infrastructure.
A glacier snout collapse sent sediment and boulders into major rivers.
Context
A glacier snout appears to have collapsed and fallen into a valley near the Nepal-China border. Satellite images show debris and signs of rapid snowmelt before the event. Officials are examining whether an earthquake or melting contributed…
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