M4.2 Earthquake 155 km S of Pýrgos, Greece — October 9, 2022
2022-10-09 21:16:39 UTC (2022-10-09) · approx. 11:16 PM UTC+2 local
On October 9, 2022 at 21:16 UTC, a magnitude 4.2 shallow crustal earthquake struck 155 km S of Pýrgos, Greece, at a depth of 29.6 km and coordinates 33.6107°, 25.0445°.
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
25.0445°E
Technical Information
Common Questions
How strong was the magnitude 4.2 earthquake near Pýrgos, Greece?
The magnitude 4.2 earthquake that struck 155 km S of Pýrgos, Greece on October 9, 2022 at 21:16 UTC had a depth of 29.6 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.
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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: us6000itln). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, October 9, 2022). M4.2 Earthquake 155 km S of Pýrgos, Greece — October 9, 2022. Retrieved December 17, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000itln/