M4.1 Earthquake 1 km WSW of Aígio, Greece — December 26, 2023
2023-12-26 21:22:31 UTC (2023-12-26) · approx. 10:22 PM UTC+1 local
On December 26, 2023 at 21:22 UTC, a magnitude 4.1 shallow crustal earthquake struck 1 km WSW of Aígio, Greece, at a depth of 28.0 km and coordinates 38.2403°, 22.0656°.
Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.

Earthquake Details
22.0656°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.1 earthquake near Aígio, Greece?
The magnitude 4.1 earthquake that struck 1 km WSW of Aígio, Greece on December 26, 2023 at 21:22 UTC had a depth of 28.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.1 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000lzxf). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, December 26, 2023). M4.1 Earthquake 1 km WSW of Aígio, Greece — December 26, 2023. Retrieved March 2, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000lzxf/