M4.1 Earthquake 18 km WNW of Agía Galíni, Greece — May 20, 2026
2026-05-20 23:41:46 UTC (2026-05-20) · approx. 1:41 AM UTC+2 local
On May 20, 2026 at 23:41 UTC, a magnitude 4.1 shallow crustal earthquake struck 18 km WNW of Agía Galíni, Greece, at a depth of 10.0 km and coordinates 35.1800°, 24.5143°.
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
24.5143°E
Technical Information
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Common Questions
How strong was the magnitude 4.1 earthquake near Agía Galíni, Greece?
The magnitude 4.1 earthquake that struck 18 km WNW of Agía Galíni, Greece on May 20, 2026 at 23:41 UTC had a depth of 10.0 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: us7000snni). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, May 20, 2026). M4.1 Earthquake 18 km WNW of Agía Galíni, Greece — May 20, 2026. Retrieved June 23, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000snni/