M4.3 Earthquake 120 km ESE of Ozernovskiy, Russia — August 13, 2025
2025-08-13 20:28:42 UTC (2025-08-13) · approx. 7:28 AM UTC+11 local
On August 13, 2025 at 20:28 UTC, a magnitude 4.3 shallow crustal earthquake struck 120 km ESE of Ozernovskiy, Russia, at a depth of 40.8 km and coordinates 50.9219°, 157.9667°.
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
157.9667°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 120 km ESE of Ozernovskiy, Russia on August 13, 2025 at 20:28 UTC had a depth of 40.8 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: us6000r0ff). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, August 13, 2025). M4.3 Earthquake 120 km ESE of Ozernovskiy, Russia — August 13, 2025. Retrieved November 4, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000r0ff/