Intergovernmental research organization
Appears in 2 stories
Analyzing the flash flood's cause; exact cause not yet established
A flash flood tore through Nepal's Rasuwa district on August 26, sending water, rock, and debris down the Bhote Koshi and Trishuli rivers toward India. By evening, India's Central Water Commission warned the wave would hit the Gandak, and officials opened all 36 gates of the Valmikinagar barrage. Discharge peaked at 1.5 lakh cusecs (about 4.2 million liters per second) before falling to 81,000.
Updated Sep 3
Shared satellite imagery that revealed the collapse
The morning of August 26, a 600-meter-wide slab of glacier and rock peeled off Langtang Lirung, a 23,700-foot peak on the Nepal-China border, and fell 1,200 meters into the valley. The debris dammed the Lhende Khola river; hours later the dam burst, sending a wall of ice, mud, and water down the Bhotekoshi and Trishuli rivers.
Updated Sep 1
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