M3.0 Earthquake 91 km WNW of Nikolski, Alaska — March 12, 2026
2026-03-12 22:54:57 UTC (2026-03-12) · approx. 11:54 AM UTC-11 local
On March 12, 2026 at 22:54 UTC, a magnitude 3.0 intermediate depth earthquake struck 91 km WNW of Nikolski, Alaska, at a depth of 177.3 km and coordinates 53.1736°, -170.1694°.
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
-170.1694°E
Technical Information
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Common Questions
How strong was the magnitude 3.0 earthquake near Nikolski, Alaska?
The magnitude 3.0 earthquake that struck 91 km WNW of Nikolski, Alaska on March 12, 2026 at 22:54 UTC had a depth of 177.3 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: us6000sgf1). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, March 12, 2026). M3.0 Earthquake 91 km WNW of Nikolski, Alaska — March 12, 2026. Retrieved July 29, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000sgf1/