M3.5 Earthquake 228 km S of Akhiok, Alaska — January 10, 2026
2026-01-10 18:19:51 UTC (2026-01-10) · approx. 8:19 AM UTC-10 local
On January 10, 2026 at 18:19 UTC, a magnitude 3.5 shallow crustal earthquake struck 228 km S of Akhiok, Alaska, at a depth of 20.0 km and coordinates 54.9300°, -154.8330°.
Physical scale: An earthquake of magnitude 3.5 releases seismic energy equivalent to roughly 2.7 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 157 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-154.8330°E
Technical Information
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Common Questions
How strong was the magnitude 3.5 earthquake near Akhiok, Alaska?
The magnitude 3.5 earthquake that struck 228 km S of Akhiok, Alaska on January 10, 2026 at 18:19 UTC had a depth of 20.0 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 3.5 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.5 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: ak2026aryahf). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, January 10, 2026). M3.5 Earthquake 228 km S of Akhiok, Alaska — January 10, 2026. Retrieved September 21, 2026 from https://www.earthquaketracker.org/earthquakes/event/ak2026aryahf/