Overview
- The flood struck the Nepal–Tibet border on Wednesday, August 26, when a wall of water, ice and debris swept down the Bhote Koshi and Trishuli river valleys and tore through villages and roads.
- Authorities report provisional and varying tolls that range from dozens to several hundred confirmed deaths and that more than a thousand people remain unaccounted for in combined Nepalese and Chinese counts.
- Nepal and China have deployed military, police and emergency teams with helicopters and search dogs, but high water, mud and destroyed access routes are preventing landings and slowing rescues.
- Officials say investigators are considering a 4.4–5.2 magnitude seismic event, a glacier collapse or an avalanche that blocked a high river channel and then released accumulated water as possible triggers.
- The flood damaged major infrastructure, including about 430 megawatts of hydro capacity, washed out bridges and roads, disrupted pilgrim and tourist routes and raises the risk of further surges if upstream blockages persist.