A newly formed natural lake, created by a recent massive landslide along the rugged Nepal-Tibet border, has triggered growing alarm among regional authorities and communities over the rising risk of a catastrophic secondary flood. In an on-site analysis of the unfolding situation, BBC correspondent Laura Bicker has broken down how this unexpected body of water is creating a dangerous hazard for downstream settlements.
The landslide, which occurred recently in the mountainous cross-border region, blocked a natural river channel, leading water to accumulate rapidly and form the new unstable lake. Geologists and disaster response teams warn that if the earthen dam created by the landslide gives way under the growing pressure of rising water, a sudden surge of floodwater could rush through downstream valleys, threatening homes, infrastructure, and the lives of thousands of people living in the area.
Local disaster management agencies have already stepped up monitoring of the lake’s water levels and are preparing emergency evacuation plans for at-risk communities, as climate experts note that changing weather patterns in the Himalayan region have increased the frequency of such landslide and flood events in recent years.