M4.3 Earthquake 256 km W of Ozernovskiy, Russia — July 27, 2025
2025-07-27 19:12:18 UTC (2025-07-27) · approx. 5:12 AM UTC+10 local
On July 27, 2025 at 19:12 UTC, a magnitude 4.3 deep-focus earthquake struck 256 km W of Ozernovskiy, Russia, at a depth of 413.9 km and coordinates 51.8763°, 152.8394°.
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
152.8394°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near Ozernovskiy, Russia?
The magnitude 4.3 earthquake that struck 256 km W of Ozernovskiy, Russia on July 27, 2025 at 19:12 UTC had a depth of 413.9 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: us6000qvii). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, July 27, 2025). M4.3 Earthquake 256 km W of Ozernovskiy, Russia — July 27, 2025. Retrieved October 11, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000qvii/