M4.3 Earthquake 76 km SE of Petropavlovsk-Kamchatsky, Russia — October 25, 2025
2025-10-25 20:15:36 UTC (2025-10-25) · approx. 7:15 AM UTC+11 local
On October 25, 2025 at 20:15 UTC, a magnitude 4.3 shallow crustal earthquake struck 76 km SE of Petropavlovsk-Kamchatsky, Russia, at a depth of 41.6 km and coordinates 52.5359°, 159.3513°.
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
159.3513°E
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Common Questions
How strong was the magnitude 4.3 earthquake near Petropavlovsk-Kamchatsky, Russia?
The magnitude 4.3 earthquake that struck 76 km SE of Petropavlovsk-Kamchatsky, Russia on October 25, 2025 at 20:15 UTC had a depth of 41.6 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.
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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: us6000rnba). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, October 25, 2025). M4.3 Earthquake 76 km SE of Petropavlovsk-Kamchatsky, Russia — October 25, 2025. Retrieved January 15, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rnba/