M4.2 Earthquake 79 km SW of Kuril’sk, Russia — September 28, 2022
2022-09-28 21:48:22 UTC (2022-09-28) · approx. 7:48 AM UTC+10 local
On September 28, 2022 at 21:48 UTC, a magnitude 4.2 intermediate depth earthquake struck 79 km SW of Kuril’sk, Russia, at a depth of 137.3 km and coordinates 44.7810°, 147.0931°.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.

Earthquake Details
147.0931°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.2 earthquake near Kuril’sk, Russia?
The magnitude 4.2 earthquake that struck 79 km SW of Kuril’sk, Russia on September 28, 2022 at 21:48 UTC had a depth of 137.3 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 4.2 earthquakes can continue for several days and gradually diminish over time.
Actions
Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000iqsy). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, September 28, 2022). M4.2 Earthquake 79 km SW of Kuril’sk, Russia — September 28, 2022. Retrieved December 3, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000iqsy/