M4.3 Earthquake 59 km SE of Ozernovskiy, Russia — August 31, 2025
2025-08-31 23:31:58 UTC (2025-08-31) · approx. 9:31 AM UTC+10 local
On August 31, 2025 at 23:31 UTC, a magnitude 4.3 intermediate depth earthquake struck 59 km SE of Ozernovskiy, Russia, at a depth of 81.7 km and coordinates 51.0955°, 157.0591°.
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
157.0591°E
Technical Information
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Common Questions
How strong was the magnitude 4.3 earthquake near Ozernovskiy, Russia?
The magnitude 4.3 earthquake that struck 59 km SE of Ozernovskiy, Russia on August 31, 2025 at 23:31 UTC had a depth of 81.7 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.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000qswz). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, August 31, 2025). M4.3 Earthquake 59 km SE of Ozernovskiy, Russia — August 31, 2025. Retrieved November 19, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000qswz/