M3.1 Earthquake 55 km SSW of Pilot Point, Alaska — September 5, 2026
2026-09-05 18:01:58 UTC (40 min ago) · approx. 7:01 AM UTC-11 local
On September 5, 2026 at 18:01 UTC, a magnitude 3.1 intermediate depth earthquake struck 55 km SSW of Pilot Point, Alaska, at a depth of 145.9 km and coordinates 57.1350°, -158.0550°.
Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 674 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 83 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-158.0550°E
Technical Information
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Common Questions
How strong was the magnitude 3.1 earthquake near Pilot Point, Alaska?
The magnitude 3.1 earthquake that struck 55 km SSW of Pilot Point, Alaska on September 5, 2026 at 18:01 UTC had a depth of 145.9 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 3.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.1 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: aka2026rppmra). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 5, 2026). M3.1 Earthquake 55 km SSW of Pilot Point, Alaska — September 5, 2026. Retrieved September 5, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026rppmra/