M4.8 Earthquake 134 km SE of Kuril’sk, Russia — December 25, 2025
2025-12-25 13:17:00 UTC (2025-12-25) · approx. 11:17 PM UTC+10 local
On December 25, 2025 at 13:17 UTC, a magnitude 4.8 shallow crustal earthquake struck 134 km SE of Kuril’sk, Russia, at a depth of 35.0 km and coordinates 44.3631°, 149.0615°. This earthquake was detected by 70 seismic stations with good location accuracy and was assigned a USGS significance rating of 354, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.8 releases seismic energy equivalent to roughly 239 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.2 km — a useful intuition for the size of the slip patch on the fault.
The epicenter is located in Russia, a region characterized by the Kuril-Kamchatka subduction zone on the northwestern Pacific Ring of Fire. The nearest mapped fault system is the Kuril-Kamchatka Trench. View all earthquakes in Russia.
Learn more: Magnitude scale · Aftershock sequences
Earthquake Details
149.0615°E
Technical Information
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Common Questions
How strong was the magnitude 4.8 earthquake near Kuril’sk, Russia?
The magnitude 4.8 earthquake that struck 134 km SE of Kuril’sk, Russia on December 25, 2025 at 13:17 UTC had a depth of 35.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 44.3631°, 149.0615°, which is 134 km SE of Kuril’sk, Russia. View all earthquakes in Russia.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.8 earthquakes can continue for several days and gradually diminish over time.
Has Russia had earthquakes this big before?
The largest recorded earthquake in Russia was the M9.0 Kamchatka earthquake of November 4, 1952. Today's magnitude 4.8 event is significantly smaller than that historical record.
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.
Authoritative source: USGS event page (event ID: us7000rkqb). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, December 25, 2025). M4.8 Earthquake 134 km SE of Kuril’sk, Russia — December 25, 2025. Retrieved May 23, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000rkqb/