M4.2 Earthquake 112 km SSW of Severo-Kuril’sk, Russia — September 20, 2020
2020-09-20 22:45:46 UTC (2020-09-20) · approx. 8:45 AM UTC+10 local
On September 20, 2020 at 22:45 UTC, a magnitude 4.2 shallow crustal earthquake struck 112 km SSW of Severo-Kuril’sk, Russia, at a depth of 66.5 km and coordinates 49.7210°, 155.6180°.
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
155.6180°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.2 earthquake near Severo-Kuril’sk, Russia?
The magnitude 4.2 earthquake that struck 112 km SSW of Severo-Kuril’sk, Russia on September 20, 2020 at 22:45 UTC had a depth of 66.5 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: us6000c0mh). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, September 20, 2020). M4.2 Earthquake 112 km SSW of Severo-Kuril’sk, Russia — September 20, 2020. Retrieved November 28, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000c0mh/