M4.6 Earthquake northwest of the Kuril Islands — September 28, 2026
2026-09-28 04:42:56 UTC (1 hour ago) · approx. 2:42 PM UTC+10 local
On September 28, 2026 at 04:42 UTC, a magnitude 4.6 intermediate depth earthquake struck northwest of the Kuril Islands, at a depth of 258.7 km and coordinates 49.0259°, 151.5708°. This earthquake was detected by 56 seismic stations with good location accuracy and was assigned a USGS significance rating of 326, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
151.5708°E
Technical Information
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Common Questions
How strong was the magnitude 4.6 earthquake northwest of the Kuril Islands?
The magnitude 4.6 earthquake that struck northwest of the Kuril Islands on September 28, 2026 at 04:42 UTC had a depth of 258.7 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 49.0259°, 151.5708°, which is northwest of the Kuril Islands.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000ty2w). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 28, 2026). M4.6 Earthquake northwest of the Kuril Islands — September 28, 2026. Retrieved September 28, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000ty2w/