M4.2 Earthquake 148 km NNW of Kuril’sk, Russia — August 29, 2026
2026-08-29 01:46:04 UTC (3 hours ago) · approx. 11:46 AM UTC+10 local
On August 29, 2026 at 01:46 UTC, a magnitude 4.2 deep-focus earthquake struck 148 km NNW of Kuril’sk, Russia, at a depth of 306.9 km and coordinates 46.4708°, 147.1842°.
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
147.1842°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.2 earthquake near Kuril’sk, Russia?
The magnitude 4.2 earthquake that struck 148 km NNW of Kuril’sk, Russia on August 29, 2026 at 01:46 UTC had a depth of 306.9 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 4.2 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: us7000tcr6). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, August 29, 2026). M4.2 Earthquake 148 km NNW of Kuril’sk, Russia — August 29, 2026. Retrieved August 29, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000tcr6/