M3.4 Earthquake 0 km ESE of Carnforth, United Kingdom — December 3, 2025
2025-12-03 23:23:32 UTC (2025-12-03) · approx. 11:23 PM UTC+0 local
Felt by 330 people across surrounding communities.
On December 3, 2025 at 23:23 UTC, a magnitude 3.4 shallow crustal earthquake struck 0 km ESE of Carnforth, United Kingdom, at a depth of 10.0 km and coordinates 54.1302°, -2.7654°. This earthquake was detected by 15 seismic stations with good location accuracy and was assigned a USGS significance rating of 297, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 3.4 releases seismic energy equivalent to roughly 1.9 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 134 m — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 330 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
Earthquake Details
-2.7654°E
Technical Information
Common Questions
How strong was the magnitude 3.4 earthquake near Carnforth, United Kingdom?
The magnitude 3.4 earthquake that struck 0 km ESE of Carnforth, United Kingdom on December 3, 2025 at 23:23 UTC had a depth of 10.0 km. For context, this was a minor earthquake typically detected only by instruments.
Where did the earthquake occur?
The earthquake epicenter was located at 54.1302°, -2.7654°, which is 0 km ESE of Carnforth, United Kingdom.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.4 earthquakes can continue for several days 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: us7000rff7). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, December 3, 2025). M3.4 Earthquake 0 km ESE of Carnforth, United Kingdom — December 3, 2025. Retrieved May 24, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000rff7/