The Emerging Violence of Himalayan Hazards

The useful part

The sudden flash flood in Rasuwa, Bagmati Province, Nepal, in August 26, 2026 has highlighted the emerging and unpredictable nature of cryospheric hazards in the Himalaya. It demonstrates how sudden glacier- and ice-related processes, combined with weak geological foundations, can rapidly generate destructive floods, posing serious risks to communities and critical infrastructure. In recent years, landslides, debris flows, flash floods, cloudbursts and cryosphere-related hazards have become more frequent, intense and complex.

How it works

• Sikkim (2023), Thame GLOF in Nepal (2024), and recent disasters in Uttarakhand and Jammu & Kashmir etc., clearly show this changing Himalayan hazard environment.
• Every major event generates scientific studies/literature to understand its causes and mechanisms, yet each event can follow a different pathway.
• These interacting conditions make disaster prediction increasingly challenging and highlight the need for better monitoring, risk assessment and adaptation.
• The Himalaya has highly variable geology, land use land cover, steep terrain, glaciers, snow, permafrost, unstable slopes and river systems.
• Cryosphere is no longer only a water resource For decades, glaciers and snow have mainly been viewed as important water resources and indicators of climate change.

What to take from it

Glacial lakes, meanwhile, were recognised as potential sources of Glacial Lake Outburst Floods (GLOFs).

Details worth keeping

The Himalaya is changing, and so is the nature of its disasters. Since around 2020, the Himalaya has experienced repeated extreme events. The glacier/snow itself can become the source of a disaster....