In the wake of recent landslides in Kerala’s hill ranges, there is a valuable lesson to be learned from Aizawl the capital of Mizoram. Despite being prone to earthquakes and frequent landslides, Aizawl has made significant progress in mitigating disaster risks a feat that Kerala could replicate to protect its vulnerable regions.
In 2013, Aizawl faced a devastating landslide that claimed 17 lives. This tragedy prompted the Aizawl Municipal Corporation (AMC) to take decisive action. The city developed comprehensive landslide hazard maps and implemented strict slope modification regulations, turning a disaster into a turning point for safety.
The key to Aizawl’s success lies in its proactive approach. The AMC crafted landslide hazard maps at a detailed scale of 1:10,000, later refining them to 1:5,000 and eventually aiming for 1:1,000 scale maps. These maps are essential for planning and regulation, ensuring that construction in high-risk areas is carefully controlled.
One of the crucial regulations introduced in Aizawl is the 2017 Site Development and Slope Modification Regulations. These rules prevent risky human activities such as improper slope cutting, excessive groundwater penetration, and poorly managed drainage, all of which can increase the likelihood of landslides. The AMC also established a Geologic Review Board (GRB) to assess high-risk areas and recommend safe construction practices.
Since these measures were put in place, Aizawl has seen a significant reduction in human-made landslides. Although natural landslides remain a threat, the community’s awareness and cooperation have played a vital role in reducing risks. The AMC also enforces a strict ban on slope-cutting during the rainy season to further mitigate landslide dangers.
Hari Kumar, Regional Coordinator for South Asia at GeoHazards International, emphasized that Aizawl’s model could serve as an example for Kerala and other states. The success of Aizawl shows that with the right planning, regulations, and community involvement, it is possible to reduce the impact of landslides and save lives.
As Kerala continues to face the challenges of landslides, adopting a similar approach could be the key to safeguarding its hill regions. By focusing on prevention rather than merely responding to disasters, Kerala can create a safer environment for its people.
