M3.1 Earthquake 66 km WSW of Cantwell, Alaska — November 13, 2025
2025-11-13 21:52:16 UTC (2025-11-13) · approx. 11:52 AM UTC-10 local
On November 13, 2025 at 21:52 UTC, a magnitude 3.1 intermediate depth earthquake struck 66 km WSW of Cantwell, Alaska, at a depth of 96.3 km and coordinates 63.2084°, -150.2222°.
Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 570 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 77 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-150.2222°E
Technical Information
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Common Questions
How strong was the magnitude 3.1 earthquake near Cantwell, Alaska?
The magnitude 3.1 earthquake that struck 66 km WSW of Cantwell, Alaska on November 13, 2025 at 21:52 UTC had a depth of 96.3 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 3.1 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: ak2025wjsyyg). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, November 13, 2025). M3.1 Earthquake 66 km WSW of Cantwell, Alaska — November 13, 2025. Retrieved February 10, 2026 from https://www.earthquaketracker.org/earthquakes/event/ak2025wjsyyg/