M3.8 Earthquake 230 km NW of Kuril’sk, Russia — June 22, 2026
2026-06-22 21:20:09 UTC (2026-06-22) · approx. 7:20 AM UTC+10 local
On June 22, 2026 at 21:20 UTC, a magnitude 3.8 deep-focus earthquake struck 230 km NW of Kuril’sk, Russia, at a depth of 414.8 km and coordinates 46.9306°, 146.1851°.
Physical scale: An earthquake of magnitude 3.8 releases seismic energy equivalent to roughly 7.6 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 252 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
146.1851°E
Technical Information
Common Questions
How strong was the magnitude 3.8 earthquake near Kuril’sk, Russia?
The magnitude 3.8 earthquake that struck 230 km NW of Kuril’sk, Russia on June 22, 2026 at 21:20 UTC had a depth of 414.8 km. For context, this was a minor earthquake typically detected only by instruments.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.8 earthquakes can continue for several days and gradually diminish over time.
Actions
Understanding This Data
Magnitude 3.8 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us6000t7hd). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, June 22, 2026). M3.8 Earthquake 230 km NW of Kuril’sk, Russia — June 22, 2026. Retrieved June 29, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000t7hd/