M4.2 Earthquake 22 km SSE of Mandráki, Greece — September 7, 2021
2021-09-07 21:55:23 UTC (2021-09-07) · approx. 11:55 PM UTC+2 local
On September 7, 2021 at 21:55 UTC, a magnitude 4.2 shallow crustal earthquake struck 22 km SSE of Mandráki, Greece, at a depth of 9.4 km and coordinates 36.4181°, 27.2005°.
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
27.2005°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.2 earthquake near Mandráki, Greece?
The magnitude 4.2 earthquake that struck 22 km SSE of Mandráki, Greece on September 7, 2021 at 21:55 UTC had a depth of 9.4 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.
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Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000f92g). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, September 7, 2021). M4.2 Earthquake 22 km SSE of Mandráki, Greece — September 7, 2021. Retrieved November 17, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000f92g/