M4.0 Earthquake 166 km SE of Petropavlovsk-Kamchatsky, Russia — October 26, 2025
2025-10-26 16:05:14 UTC (2025-10-26) · approx. 3:05 AM UTC+11 local
On October 26, 2025 at 16:05 UTC, a magnitude 4.0 shallow crustal earthquake struck 166 km SE of Petropavlovsk-Kamchatsky, Russia, at a depth of 37.8 km and coordinates 52.2464°, 160.6859°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
160.6859°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.0 earthquake near Petropavlovsk-Kamchatsky, Russia?
The magnitude 4.0 earthquake that struck 166 km SE of Petropavlovsk-Kamchatsky, Russia on October 26, 2025 at 16:05 UTC had a depth of 37.8 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 4.0 earthquakes can continue for several days and gradually diminish over time.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.
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Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000rncb). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, October 26, 2025). M4.0 Earthquake 166 km SE of Petropavlovsk-Kamchatsky, Russia — October 26, 2025. Retrieved May 26, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rncb/