This is a developing story.
Early on the morning of 21 November 2025, a seismic event was reported in neighbouring Bangladesh, with tremors felt across parts of eastern India, including the city of Kolkata and the Northeast. Source
What we know so far
According to media reports, the earthquake had its epicentre in Bangladesh. India Today+1
Residents in Kolkata, as well as other parts of Assam and possibly Himalayan foothills, felt shaking and reported that the tremors lasted briefly but were noticeable. mint+1
At present, no confirmed reports of casualties or major property damage have emerged. India Today+1
Social media across Kolkata and West Bengal is abuzz with accounts of the shaking—videos of swaying objects and startled citizens have circulated. mint
What to keep in mind
Although the tremors reached Kolkata, the intensity appears to have been moderate given the lack of immediate damage reports.
Seismic waves can travel across regional fault zones and deep geological structures, meaning even distant quakes can be felt far from the epicentre.
This event is still under investigation — official agencies like the National Center for Seismology may release more data on magnitude, depth and exact epicentre in coming hours or days.
For those in tremor-affected zones: check your safety (for example, inspect crack development in your building, ensure there is no damage to utility connections), and stay alert for possible after-shocks.
Why this matters
Eastern India and Bangladesh lie within a tectonically active region where the Indian plate interacts with the Eurasian and Burmese plates. Tremors crossing borders are a reminder of the interlinked seismic risk in this region. Cities like Kolkata, with high population density and old infrastructure, may have different vulnerability profiles compared to newer zones.
We’ll continue to monitor updates and will provide more detailed information (magnitude, depth, regional impact) as soon as official data becomes available.
Sujata Bhattacharjee is a professional content writer with eight years of experience crafting SEO-focused articles, tech blogs, ad copies, and B2B content. She blends clear storytelling with data-driven strategy to create content that ranks, engages, and converts. Sujata has worked for startups, agencies, big tech firms like Cigniti, and established brands, helping them simplify complex ideas and communicate with impact.