M4.0 Earthquake 8 km NE of Asímion, Greece — July 24, 2021
2021-07-24 21:56:55 UTC (2021-07-24) · approx. 11:56 PM UTC+2 local
On July 24, 2021 at 21:56 UTC, a magnitude 4.0 shallow crustal earthquake struck 8 km NE of Asímion, Greece, at a depth of 9.1 km and coordinates 35.0941°, 25.1673°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
25.1673°E
Technical Information
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Common Questions
How strong was the magnitude 4.0 earthquake near Asímion, Greece?
The magnitude 4.0 earthquake that struck 8 km NE of Asímion, Greece on July 24, 2021 at 21:56 UTC had a depth of 9.1 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 4.0 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000eys0). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, July 24, 2021). M4.0 Earthquake 8 km NE of Asímion, Greece — July 24, 2021. Retrieved October 3, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000eys0/