M3.0 Earthquake 33 km SSW of Nelson Lagoon, Alaska — September 25, 2026
2026-09-25 22:26:11 UTC (2026-09-25) · approx. 11:26 AM UTC-11 local
On September 25, 2026 at 22:26 UTC, a magnitude 3.0 intermediate depth earthquake struck 33 km SSW of Nelson Lagoon, Alaska, at a depth of 188.2 km and coordinates 55.7196°, -161.3862°.
Physical scale: An earthquake of magnitude 3.0 releases seismic energy equivalent to roughly 477 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 71 m — a useful intuition for the size of the slip patch on the fault.

Earthquake Details
-161.3862°E
Technical Information
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Common Questions
How strong was the magnitude 3.0 earthquake near Nelson Lagoon, Alaska?
The magnitude 3.0 earthquake that struck 33 km SSW of Nelson Lagoon, Alaska on September 25, 2026 at 22:26 UTC had a depth of 188.2 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 3.0 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.0 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us6000tz73). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 25, 2026). M3.0 Earthquake 33 km SSW of Nelson Lagoon, Alaska — September 25, 2026. Retrieved October 11, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tz73/