How catastrophic flash flood unfolded at remote Nepal-China border point

On a day marked by unusual traffic at the Nepal-Tibet border, a catastrophic flash flood struck the remote region, leaving behind widespread destruction. The horrifying event was captured on CCTV footage and satellite imagery, providing visual evidence of the sheer scale of devastation. The floodwater, mud, boulders, ice, and rock surged down the valley with incredible speed and force, sweeping away much of the border complex.

The border complex was a historic travel route between Kathmandu and Tibet, characterized by deep gorges and steep rivers. It was a place where pilgrims, traders, customs officials, tourists, and locals converged. The area is known for its geological vulnerability and high velocity rivers, carrying heavy sediment and capable of bringing down huge boulders.

According to electronic immigration records, 89 Nepali and foreign nationals had cleared immigration to leave Nepal for Tibet, while only four people had registered their entry into Nepal. The last transaction at the immigration system was recorded at 08:35:03 local time, less than 10 minutes before the flood hit. Four immigration employees, including the head of the Rasuwagadhi office, went missing in the floods, with only one body recovered.

Surviving senior immigration assistant Tika Ram Pokharel provided insight into the events leading up to the flood. He stated that the crossing was unusually busy, with around 300 to 400 people waiting to leave Nepal for Tibet, and others arriving from the Chinese side were also present. The floodwaters reached the border crossing within seven minutes of the seismic instruments detecting movement in the mountains above the border.

The floodwaters appeared to surge higher than the immigration office located about 100 meters above the river. Pokharel estimated that 2,000 to 2,500 people may have been caught in the flood, while official figures suggest 275 Indians are still missing. The exact whereabouts of the 89 people who had cleared immigration remain unclear, making it difficult to determine their fate.