GeohazardMapping LandslideRisk DisasterResilience

45% of Himachal Pradesh at Risk of Landslides and Floods – What Can Be Done?

*Himachal Pradesh has suffered severe natural disasters in recent years, often leading to multiple fatalities. Source: NDTV*

A recent geospatial study has revealed that over 45% of Himachal Pradesh is highly susceptible to landslides, floods, and avalanches. Researchers conducted hazard mapping to identify high-risk zones and develop effective disaster mitigation strategies. The findings were presented at a major climate conference, where global experts discussed the increasing risks associated with multi-hazard vulnerability in mountainous regions.

Risk Profile for Landslide probability in Himachal Pradesh. Source: Himachal Pradesh General Studies

Multi-Hazard Mapping for Disaster Prevention

The study identified different hazard zones based on slope gradients and elevation levels:

Moderate slopes (5.9° - 16.4°, up to 1,600m altitude) face high risks of both landslides and floods.
Steeper slopes (16.8° - 41.5°) at higher elevations are prone to avalanches and landslides.
Mountain peaks above 3,000 meters are the most vulnerable to extreme events.

Using GIS-based hazard mapping, researchers found that flood-prone regions are generally located in lower river valleys, while high-altitude areas are at greater risk of avalanches. The study emphasized how one disaster can trigger another, necessitating better risk assessment and emergency preparedness.

Risk profile categorisation of Landslides using GIS. Source: Landslide Hazard Mapping Using Geo-Environmental Parameters

Recent Disasters and the Need for Action

Himachal Pradesh has suffered severe natural disasters in recent years. In July 2023, heavy rainfall caused devastating floods, landslides, and infrastructure damage, highlighting the urgent need for sustainable land-use planning and resilient infrastructure.

By utilizing advanced geospatial tools and engineering solutions, authorities can improve disaster response, develop early warning systems, and enhance risk management strategies. As climate conditions continue to evolve, proactive measures will be essential to protect communities and infrastructure in the Himalayan region.

Sources: firstpost.com, economictimes.indiatimes.com, link.springer.com