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Nepal Estimates Flood Losses at 10% of GDP After Himalayan “Tsunami”
Nepal’s government reported that the August 26 flood destroyed 10 percent of the country’s gross domestic product, with damages and losses exceeding $2.7 billion, as Finance Minister Swarnim Wagle sought international funding to rebuild.
Nepal’s government said that the August 26 flood, dubbed the “Himalayan tsunami,” caused physical damage worth $1.8 billion and additional economic losses of more than $900 million, equivalent to about 10% of the country’s Gross Domestic Product (GDP), as it seeks international financing for reconstruction.
Finance Minister Swarnim Wagle presented the estimates on Thursday at a press conference at the Foreign Correspondents’ Club in Bangkok, on the sidelines of the annual meetings of the International Monetary Fund (IMF) and the World Bank.
RELATED: Nepal River Surge Destroys 40 Homes, Leaves Five Missing
Wagle is seeking international funding for rebuilding and for measures to “avoid or mitigate the impact of future disasters.”
Nearly seven weeks passed between the disaster and Thursday’s accounting. The flood struck on August 26, and the assessment Wagle presented in Bangkok represents the government’s formal reckoning of the economic damage it must now confront.The floods left more than 1,500 people dead and 6,000 missing, causing severe destruction of essential infrastructure, hydropower projects, farmland, fish ponds, food stocks and agricultural infrastructure across the country.
Flash floods along Nepal’s Budhi Gandaki River swept away homes and bridges, forcing residents to flee to higher ground.
— Al Jazeera English (@AJEnglish) October 12, 2026
Five people are missing, and six have been rescued, authorities said. pic.twitter.com/wv7zilln7C
Rebuilding at Higher Cost
Wagle said Nepal does not intend merely to “replace what was destroyed, but to build better,” with more resilient infrastructure. He said that approach will raise the cost of reconstruction to $5 billion.
The Minister also said Nepal, which he described as “the poorest country in Asia after Afghanistan,” has contributed very little to global warming because of its limited industrialization and low emissions, but “is bearing the worst consequences of climate change.”
Wagle appealed to the “ethical and moral responsibility of countries with greater resources” to support the most vulnerable and called for a model of “global solidarity and cooperation.” “It is not about blaming rich countries, but about making a joint call to action,” he said.
Gorkha, #Nepal
— Hans Solo (@thandojo) October 15, 2026
Damaged houses lie partially submerged in sludge along the banks of the Budhi Gandaki River after a flash #flood caused by a #landslide. Four bridges and dozens of houses were swept away, as well as a construction camp for a hydropower project pic.twitter.com/vui6RyJocr
Glacier Collapse and Risk
The disaster originated high in the Himalayas. A glacial and rocky mass covering two square kilometers broke away from Langtang Lirung mountain at an altitude of 5,200 meters. The ensuing flood also swept into the Chinese region of Tibet.
The scale of the threat extends beyond a single event. A recent study in Scientific Reports warns that roughly 300,000 people in Nepal live in river channels susceptible to flooding. Construction in those vulnerable zones grew by almost 50 percent between 2016 and 2023, a pattern that multiplies the risk to communities as extreme weather becomes more frequent.
Nepal’s appeal arrives as climate-linked disasters mount across South Asia, a region where economies least responsible for global emissions face some of the steepest recovery costs. For a country that contributes a negligible share of greenhouse gases, the $5 billion reconstruction bill amounts to a burden imposed largely by forces beyond its control.
