Published: 21 November 2025 — 10:XX AM IST
(This story will be updated as more information becomes available.)
A Sudden Tremor — But No Official Report Yet
Around 10:xx AM IST, several residents across Kolkata reported feeling noticeable ground shaking. The tremor, according to early personal accounts, lasted approximately 25–35 seconds, making it significantly longer than the light tremors occasionally felt in the city.
As of the time of writing this, no official confirmation has been issued by the National Centre for Seismology, United States Geological Survey (USGS), or local disaster management authorities.
However, within minutes of the event, multiple users on X (formerly Twitter) began sharing their experiences, questioning whether Kolkata had just experienced an earthquake.
What People Are Reporting
Several residents across different parts of the city have posted similar observations:
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A clear vibration or shaking sensation
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Duration longer than a typical short tremor
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Noticeable sway in high-rise buildings
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Objects on tables vibrating or shifting slightly
While the intensity appears to have varied by location, majority of early reports mention a slow, sustained tremor rather than a sharp jolt.
Here are two of the earliest public posts acknowledging the event:
🔗 https://x.com/Shouvik_31/status/1991729240711262418
🔗 https://x.com/VinayDokania/status/1991728616741433602
More residents are now chiming in, suggesting this was not an isolated perception.
Why This Matters
Kolkata lies within a moderate seismic zone. The city typically does not experience strong earthquakes, but tremors from the Bay of Bengal fault line and Himalayan region are occasionally felt—especially in high-rise and soft-soil areas.
A tremor lasting 30 seconds or more is unusual for routine low-intensity seismic activity in the region. Even if the magnitude turns out to be moderate or low, the duration alone makes this worth monitoring.
Events like this raise questions about:
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Whether the epicentre was closer than usual
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Whether the depth was shallow enough to amplify surface shaking
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Whether buildings in the region are structurally prepared for stronger seismic activity
Until official data is released, these remain unanswered.
If You Felt the Tremor — Check These Things
Even in the absence of damage, it’s useful to stay alert. If you experienced the tremor, consider the following steps:
✔ Check walls, ceilings, and corners for new cracks
✔ Ensure gas valves, electrical appliances, and water lines are secure
✔ Note your floor level and location — this helps to map intensity patterns
✔ Keep a simple emergency plan ready if aftershocks occur
If you live in a high-rise building, avoid using elevators until an all-clear is known.
What Happens Next
This blog will be updated as soon as:
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National Centre for Seismology releases magnitude and epicentre details
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Media outlets confirm the event
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More user reports establish intensity by location
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Any government advisory is issued
If you also felt the tremor, you can share your experience in the comments with:
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Your area
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Floor level
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Duration you felt
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Whether objects moved or sound changes were noticed
This helps build a useful community-level intensity map before official data arrives.
Final Note
Whether this turns out to be a minor tectonic movement or a measurable earthquake, early public reporting is important. When official channels are silent, community-driven data becomes the first indicator — and today, Kolkata residents clearly felt something.
More updates will follow as verified information becomes available.