M4.3 Earthquake 82 km E of Petropavlovsk-Kamchatsky, Russia — December 18, 2025
2025-12-18 23:25:41 UTC (2025-12-18) · approx. 10:25 AM UTC+11 local
On December 18, 2025 at 23:25 UTC, a magnitude 4.3 shallow crustal earthquake struck 82 km E of Petropavlovsk-Kamchatsky, Russia, at a depth of 51.4 km and coordinates 53.0932°, 159.8619°.
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
159.8619°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near Petropavlovsk-Kamchatsky, Russia?
The magnitude 4.3 earthquake that struck 82 km E of Petropavlovsk-Kamchatsky, Russia on December 18, 2025 at 23:25 UTC had a depth of 51.4 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 4.3 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 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000rvvj). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, December 18, 2025). M4.3 Earthquake 82 km E of Petropavlovsk-Kamchatsky, Russia — December 18, 2025. Retrieved May 24, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rvvj/