M4.3 Earthquake 193 km E of Kuril’sk, Russia — April 4, 2023
2023-04-04 17:22:50 UTC (2023-04-04) · approx. 3:22 AM UTC+10 local
On April 4, 2023 at 17:22 UTC, a magnitude 4.3 shallow crustal earthquake struck 193 km E of Kuril’sk, Russia, at a depth of 35.7 km and coordinates 45.5263°, 150.3116°.
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
150.3116°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near Kuril’sk, Russia?
The magnitude 4.3 earthquake that struck 193 km E of Kuril’sk, Russia on April 4, 2023 at 17:22 UTC had a depth of 35.7 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: us6000k3j5). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, April 4, 2023). M4.3 Earthquake 193 km E of Kuril’sk, Russia — April 4, 2023. Retrieved June 13, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000k3j5/