KATHMANDU — Nepal’s top disaster official said an estimated 33,000 people affected by last month’s devastating flood will be required to resettle rather than returning home, as the South Asian nation grapples with the aftermath of the disaster that damaged over 7,500 buildings and has left thousands of people still missing, Kyodo News reported.

Dharam Raj Uprety, chief of the National Disaster Risk Reduction and Management Authority, told Kyodo News in an exclusive interview that the areas where flood marks — in some places 13 metres higher than normal river levels — are visible are to be declared “danger zones.”

“We know there is a possibility of future disaster. So, we don’t want to take more risk,” Uprety said earlier this week, adding that the affected population, estimated to be around 33,000 people, would be resettled in safer areas.

The August 26 flood and debris flow triggered, according to Nepal’s government, by an ice-and-rock avalanche in the upper Lhende Khola watershed in Tibet, killed 1,451 people and left about 5,700 people, including over 600 foreign nationals, missing in Nepal. Of the missing, five are Japanese nationals.

Uprety acknowledged that sentimental attachment to places where people are born and spend their lifetime poses a challenge in convincing flood-affected people to move to a safer place.

But he said teams from his office, the Department of Survey, and relevant ministries have already scouted safer areas close to the danger zones, so that the flood-affected can move to “safe settlement” and live with “dignity.”

Search operations at the tunnels of some of the 12 hydropower projects pummelled by the avalanche debris are winding down. Authorities are planning to announce the conclusion of such operations and move to post-disaster recovery at the end of this week.