M4.1 Earthquake 100 km SW of Kýthira, Greece — April 13, 2023
2023-04-13 23:01:51 UTC (2023-04-13) · approx. 12:01 AM UTC+1 local
On April 13, 2023 at 23:01 UTC, a magnitude 4.1 shallow crustal earthquake struck 100 km SW of Kýthira, Greece, at a depth of 10.0 km and coordinates 35.5321°, 22.1789°.
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
22.1789°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.1 earthquake near Kýthira, Greece?
The magnitude 4.1 earthquake that struck 100 km SW of Kýthira, Greece on April 13, 2023 at 23:01 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: us6000k5ja). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, April 13, 2023). M4.1 Earthquake 100 km SW of Kýthira, Greece — April 13, 2023. Retrieved June 17, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000k5ja/