M4.1 Earthquake 40 km S of Yuzhno-Kurilsk, Russia — December 22, 2020
2020-12-22 16:35:34 UTC (2020-12-22) · approx. 2:35 AM UTC+10 local
On December 22, 2020 at 16:35 UTC, a magnitude 4.1 intermediate depth earthquake struck 40 km S of Yuzhno-Kurilsk, Russia, at a depth of 117.1 km and coordinates 43.6703°, 145.7728°.
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
145.7728°E
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Common Questions
How strong was the magnitude 4.1 earthquake near Yuzhno-Kurilsk, Russia?
The magnitude 4.1 earthquake that struck 40 km S of Yuzhno-Kurilsk, Russia on December 22, 2020 at 16:35 UTC had a depth of 117.1 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 4.1 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: us6000d5i0). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, December 22, 2020). M4.1 Earthquake 40 km S of Yuzhno-Kurilsk, Russia — December 22, 2020. Retrieved February 27, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000d5i0/