M4.3 Earthquake 132 km ENE of Petropavlovsk-Kamchatsky, Russia — October 8, 2025
2025-10-08 15:59:04 UTC (2025-10-08) · approx. 2:59 AM UTC+11 local
On October 8, 2025 at 15:59 UTC, a magnitude 4.3 shallow crustal earthquake struck 132 km ENE of Petropavlovsk-Kamchatsky, Russia, at a depth of 54.3 km and coordinates 53.3261°, 160.5689°.
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
160.5689°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 132 km ENE of Petropavlovsk-Kamchatsky, Russia on October 8, 2025 at 15:59 UTC had a depth of 54.3 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: us6000rk8z). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, October 8, 2025). M4.3 Earthquake 132 km ENE of Petropavlovsk-Kamchatsky, Russia — October 8, 2025. Retrieved January 1, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rk8z/