Satellite Images Show Rivers Flooded on Nepal-China Border
Scientists said the collapse sent ice, rock and debris downstream, killing hundreds and leaving thousands missing in Nepal and Tibet.
- On Wednesday, August 26, 2026, a bedrock collapse along the Nepal-China border sparked catastrophic flooding that killed hundreds of people in Nepal and Tibet, with hundreds more missing, including foreigners and pilgrims.
- Geomorphologists examining satellite imagery from Thursday, August 27, 2026, discovered that the bedrock underneath the glacier on Langtang Lirung peak, near the border with Tibet, had collapsed, taking a massive chunk of ice down into the valley.
- The Trishuli River surged and overtopped its banks, turning brown with sediment as it transported massive amounts of mud and rock downstream, while buildings were toppled and swept away in Syapru Besi, a popular tourist destination.
- Mountain geographer Alton Byers of the University of Colorado Boulder said the flooding "left a wasteland in its wake" that will take years to recover from, as rescue teams continue searching the affected valleys for missing people.
- Though warming trends melt glaciers, experts remain cautious, with Geomorphologists Kristen Cook of the Université Grenoble Alpes in France and Dan Shugar of the University of Calgary noting they cannot link this to climate change, though Cook called such events "not unexpected.
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Before and after satellite photos capture destruction left by flash flood in Nepal
Nepal halted rescue work in the flood-hit Trishuli valley on Friday (August 28) after a lake formed by a landslide on the Nepal-China border began to overflow. Wednesday’s (August 26) catastrophic flood caused by a glacier collapse killed 489 people in Nepal and five in China’s Tibet, with almost 1,000 more missing in the two...
New details have emerged of the massive disaster along the border of Nepal and Tibet, and as we have described earlier, the devastating flood stream has wiped out border infrastructure and claimed hundreds of lives.
Devastating floods on the China-Nepal border are highlighting the risks of rapid infrastructure development in the Himalayas, one of the world's most vulnerable regions to earthquakes and extreme weather events. China, India and Nepal are investing in dams, tunnels, railways, roads and bridges, both for energy and to strengthen their presence in border areas.
by Giorgio Vacchiano Posted on 30/08/2026 From the collapse of rock and ice on the Langtang Lirung to the full catastrophic: what we know, what remains uncertain and what role may have had the warming of the high mountain. And above all what to do to better understand and anticipate immani catastrophes like this. Giorgio Vacchiano writes about it. Satellite image of the area affected by the flood, by USGS EarthExplorer, https://earthexplorer.usg…
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