Officials discussed closer cross-border monitoring in May, but Nepal says it still lacked the glacier, avalanche and water-level data it wanted when the 26 August disaster struck.
AP’s 31 August update reports 903 deaths and 4,247 missing in Nepal. Tibet’s figures, dated 30 August, are 16 deaths and 546 missing. Adding these jurisdictional counts gives 919 deaths and 4,793 missing; the missing are not presumed dead.
Update, 31 August: Reuters reports that Nepal’s disaster authority lists 933 people missing from hydropower projects. Teams are attempting to open debris-blocked tunnels. The missing-worker figure is not a confirmed count of people alive inside tunnels, and does not establish the cause of their loss.
At a 27 May meeting in Kathmandu, Nepali and Chinese officials discussed shared inventories of glacial lakes, hazard mapping and joint risk-reduction measures. Two Nepali officials told Reuters they did not receive as much access as requested to information on glacier movement and water levels. A Chinese delegation said it lacked authority to sign an agreement and sought further talks.
China says it has shared information in a timely manner and points to warnings about heavy rain and cascading hazards sent before the flood. Experts and officials quoted by Reuters stressed that limited bilateral cooperation has not been established as a significant cause of the catastrophe: the glacier failed in a remote, relatively unmonitored area where forecasting remains exceptionally difficult.
The disaster nevertheless exposed the fragility of the warning chain. Surveillance footage placed the torrent at the Tibetan border crossing at 8:32 a.m. Nepal time. Nepal’s hydrology team received a call 26 minutes later and issued a public mobile alert at 9:13—41 minutes after the border impact—after monitoring stations stopped transmitting and local officials confirmed the flood.
At least four monitoring stations were destroyed as an estimated 57.4 million cubic metres of water, mud and debris travelled 168 kilometres downstream. The flood damaged 19 bridges, about 40 kilometres of highway and more than a tenth of Nepal’s power-generation capacity.
Nepal now plans to seek a formal agreement providing precipitation and river-level data every 10 minutes, modelled on its arrangement with India. Recovery, identification and renewed upstream-water monitoring continue alongside that policy effort.