M5.5 Earthquake 11 km ESE of Udalguri, India — September 14, 2025
2025-09-14 11:11:51 UTC (2025-09-14) · approx. 5:11 PM UTC+6 local
Felt by 120 people across surrounding communities. Maximum shaking intensity MMI 6.2 (very strong).
On September 14, 2025 at 11:11 UTC, a magnitude 5.5 shallow crustal earthquake struck 11 km ESE of Udalguri, India, at a depth of 29.0 km and coordinates 26.7097°, 92.2103°. The earthquake was reported felt by 120 peopleacross surrounding communities, with a maximum shaking intensity of Modified Mercalli Intensity (MMI) 6.2 (very strong). The USGS PAGER system issued a orange alert level for this event, indicating regional impact possible. This earthquake was detected by 215 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 1072, making it one of the most significant global earthquakes in recent days. The nearest populated place is Udalguri (population 15,935).
Physical scale: An earthquake of magnitude 5.5 releases seismic energy equivalent to roughly 3 kilotons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 3.8 km — a useful intuition for the size of the slip patch on the fault.
Nearest Populated Places
What the Shaking Felt Like
At MMI 6.2 (very strong), people in the most strongly affected areas would have experienced: Strong shaking felt by everyone. Heavy furniture may move. Books fall from shelves. Plaster and chimneys may crack. Damage is generally slight in well-built structures.
ShakeMap — predicted shaking intensity
Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.
Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 120 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Population exposure (USGS PAGER)
Estimated population that experienced each level of shaking. Based on the USGS PAGER rapid impact assessment, which combines ShakeMap output with global population grids.
| Shaking intensity (MMI) | Description | Population exposed |
|---|---|---|
| MMI 3 | weak | 3,629,378 |
| MMI 4 | light | 20,843,374 |
| MMI 5 | moderate | 8,628,639 |
| MMI 6 | strong | 2,143,865 |
| MMI 7 | very strong | 359,733 |
Earthquake Details
92.2103°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 5.5 earthquake near Udalguri, India?
The magnitude 5.5 earthquake that struck 11 km ESE of Udalguri, India on September 14, 2025 at 11:11 UTC had a depth of 29.0 km. It was felt by 120 people with maximum shaking intensity of MMI 6.2 (very strong). For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 26.7097°, 92.2103°, which is 11 km ESE of Udalguri, India. The nearest populated place is Udalguri (population 15,935).
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.5 earthquakes can continue for days to weeks and gradually diminish over time.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.
Authoritative source: USGS event page (event ID: us7000qw56). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, September 14, 2025). M5.5 Earthquake 11 km ESE of Udalguri, India — September 14, 2025. Retrieved May 28, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000qw56/