Landslide and flooding along the Nepal-Tibet border, August 2026

01 Sep 2026

On Wednesday morning, August 25^th, rock supporting a very large glacier collapsed, sending the glacier into the valley floor in Nepal’s Langtang national park, about 35 miles (60km) north of the capital, Kathmandu, near the mountainous Nepal-Tibet border. The resulting debris flow pushed millions of metric tons of water, rock, mud, and ice down to the valley below and into the Lhende Khola, Bhotekoshi and Trishuli rivers, flooding and destroying entire villages and infrastructure along its path.  The path of the debris and flooding measured more than 62 miles long. Search and rescue attempts continue but are difficult due to mud, destroyed roads, and the remoteness of much of the impacted area. The death toll in Nepal stands at 1,395 and 5,130 people remain missing.  Chinese authorities reported 40 deaths and over 500 missing, a large share of which were foreigners and citizens of Nepal.

The Himalayan mountain range is very vulnerable to natural disasters such as landslides, flooding, and other natural hazards. Research indicates that the region is warming rapidly, increasing the likelihood and severity of these hazards.

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