M4.1 Earthquake 99 km E of Severo-Kuril’sk, Russia — August 16, 2025
2025-08-16 19:12:16 UTC (2025-08-16) · approx. 6:12 AM UTC+11 local
On August 16, 2025 at 19:12 UTC, a magnitude 4.1 shallow crustal earthquake struck 99 km E of Severo-Kuril’sk, Russia, at a depth of 58.2 km and coordinates 50.8062°, 157.5224°.
Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
157.5224°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.1 earthquake near Severo-Kuril’sk, Russia?
The magnitude 4.1 earthquake that struck 99 km E of Severo-Kuril’sk, Russia on August 16, 2025 at 19:12 UTC had a depth of 58.2 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 4.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.1 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000r1mf). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, August 16, 2025). M4.1 Earthquake 99 km E of Severo-Kuril’sk, Russia — August 16, 2025. Retrieved November 4, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000r1mf/