M4.3 Earthquake 158 km S of Tiksi, Russia — September 12, 2021
2021-09-12 19:04:39 UTC (2021-09-12) · approx. 4:04 AM UTC+9 local
On September 12, 2021 at 19:04 UTC, a magnitude 4.3 shallow crustal earthquake struck 158 km S of Tiksi, Russia, at a depth of 18.0 km and coordinates 70.3001°, 129.7047°.
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
129.7047°E
Technical Information
Common Questions
How strong was the magnitude 4.3 earthquake near Tiksi, Russia?
The magnitude 4.3 earthquake that struck 158 km S of Tiksi, Russia on September 12, 2021 at 19:04 UTC had a depth of 18.0 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 4.3 earthquakes can continue for several days and gradually diminish over time.
Actions
Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000fal5). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, September 12, 2021). M4.3 Earthquake 158 km S of Tiksi, Russia — September 12, 2021. Retrieved November 23, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000fal5/