M4.2 Earthquake 54 km ENE of Severo-Kuril’sk, Russia — August 30, 2025
2025-08-30 19:18:22 UTC (2025-08-30) · approx. 5:18 AM UTC+10 local
On August 30, 2025 at 19:18 UTC, a magnitude 4.2 intermediate depth earthquake struck 54 km ENE of Severo-Kuril’sk, Russia, at a depth of 89.3 km and coordinates 50.8350°, 156.8570°.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
156.8570°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.2 earthquake near Severo-Kuril’sk, Russia?
The magnitude 4.2 earthquake that struck 54 km ENE of Severo-Kuril’sk, Russia on August 30, 2025 at 19:18 UTC had a depth of 89.3 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 4.2 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000rck9). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, August 30, 2025). M4.2 Earthquake 54 km ENE of Severo-Kuril’sk, Russia — August 30, 2025. Retrieved November 19, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000rck9/