M4.0 Earthquake 4 km NNE of Kokkári, Greece — October 31, 2020
2020-10-31 22:05:43 UTC (2020-10-31) · approx. 12:05 AM UTC+2 local
On October 31, 2020 at 22:05 UTC, a magnitude 4.0 shallow crustal earthquake struck 4 km NNE of Kokkári, Greece, at a depth of 15.9 km and coordinates 37.8197°, 26.9124°.
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
26.9124°E
Technical Information
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Common Questions
How strong was the magnitude 4.0 earthquake near Kokkári, Greece?
The magnitude 4.0 earthquake that struck 4 km NNE of Kokkári, Greece on October 31, 2020 at 22:05 UTC had a depth of 15.9 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: us7000c8s0). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, October 31, 2020). M4.0 Earthquake 4 km NNE of Kokkári, Greece — October 31, 2020. Retrieved January 18, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000c8s0/