M4.4 Earthquake 184 km SE of Plastun, Russia — January 8, 2021
2021-01-08 21:51:00 UTC (2021-01-08) · approx. 6:51 AM UTC+9 local
On January 8, 2021 at 21:51 UTC, a magnitude 4.4 intermediate depth earthquake struck 184 km SE of Plastun, Russia, at a depth of 257.4 km and coordinates 43.7937°, 138.1558°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
138.1558°E
Technical Information
Common Questions
How strong was the magnitude 4.4 earthquake near Plastun, Russia?
The magnitude 4.4 earthquake that struck 184 km SE of Plastun, Russia on January 8, 2021 at 21:51 UTC had a depth of 257.4 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 4.4 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000d6vi). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, January 8, 2021). M4.4 Earthquake 184 km SE of Plastun, Russia — January 8, 2021. Retrieved March 20, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000d6vi/