M3.5 Earthquake 123 km S of False Pass, Alaska — September 26, 2026
2026-09-26 06:04:48 UTC (12 hours ago) · approx. 7:04 PM UTC-11 local
On September 26, 2026 at 06:04 UTC, a magnitude 3.5 shallow crustal earthquake struck 123 km S of False Pass, Alaska, at a depth of 11.9 km and coordinates 53.7540°, -163.1140°.
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
-163.1140°E
Technical Information
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Common Questions
How strong was the magnitude 3.5 earthquake near False Pass, Alaska?
The magnitude 3.5 earthquake that struck 123 km S of False Pass, Alaska on September 26, 2026 at 06:04 UTC had a depth of 11.9 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: aka2026tbmaoo). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 26, 2026). M3.5 Earthquake 123 km S of False Pass, Alaska — September 26, 2026. Retrieved September 26, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026tbmaoo/