M4.2 Earthquake 21 km SSE of Shikotan, Russia — September 12, 2020
2020-09-12 17:45:52 UTC (2020-09-12) · approx. 3:45 AM UTC+10 local
On September 12, 2020 at 17:45 UTC, a magnitude 4.2 shallow crustal earthquake struck 21 km SSE of Shikotan, Russia, at a depth of 47.4 km and coordinates 43.6356°, 146.8596°.
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
146.8596°E
Technical Information
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Common Questions
How strong was the magnitude 4.2 earthquake near Shikotan, Russia?
The magnitude 4.2 earthquake that struck 21 km SSE of Shikotan, Russia on September 12, 2020 at 17:45 UTC had a depth of 47.4 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: us7000bpdw). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, September 12, 2020). M4.2 Earthquake 21 km SSE of Shikotan, Russia — September 12, 2020. Retrieved November 21, 2020 from https://www.earthquaketracker.org/earthquakes/event/us7000bpdw/