M4.2 Earthquake 40 km SE of Koróni, Greece — May 25, 2026
2026-05-25 01:29:12 UTC (2026-05-25) · approx. 2:29 AM UTC+1 local
On May 25, 2026 at 01:29 UTC, a magnitude 4.2 shallow crustal earthquake struck 40 km SE of Koróni, Greece, at a depth of 39.6 km and coordinates 36.4906°, 22.2114°.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
22.2114°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.2 earthquake near Koróni, Greece?
The magnitude 4.2 earthquake that struck 40 km SE of Koróni, Greece on May 25, 2026 at 01:29 UTC had a depth of 39.6 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 4.2 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.
Actions
Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000szzs). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, May 25, 2026). M4.2 Earthquake 40 km SE of Koróni, Greece — May 25, 2026. Retrieved June 9, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000szzs/