M4.2 Earthquake 39 km NNW of Smirnykh, Russia — March 19, 2021
2021-03-19 19:59:34 UTC (2021-03-19) · approx. 5:59 AM UTC+10 local
On March 19, 2021 at 19:59 UTC, a magnitude 4.2 shallow crustal earthquake struck 39 km NNW of Smirnykh, Russia, at a depth of 15.2 km and coordinates 50.0558°, 142.5650°.
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
142.5650°E
Technical Information
Common Questions
How strong was the magnitude 4.2 earthquake near Smirnykh, Russia?
The magnitude 4.2 earthquake that struck 39 km NNW of Smirnykh, Russia on March 19, 2021 at 19:59 UTC had a depth of 15.2 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: us6000dwpv). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, March 19, 2021). M4.2 Earthquake 39 km NNW of Smirnykh, Russia — March 19, 2021. Retrieved June 2, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000dwpv/