M3.1 Earthquake 47 km ENE of Nikolski, Alaska — May 27, 2025
2025-05-27 21:12:01 UTC (2025-05-27) · approx. 10:12 AM UTC-11 local
On May 27, 2025 at 21:12 UTC, a magnitude 3.1 intermediate depth earthquake struck 47 km ENE of Nikolski, Alaska, at a depth of 88.9 km and coordinates 53.0973°, -168.1993°.
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
-168.1993°E
Technical Information
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Common Questions
How strong was the magnitude 3.1 earthquake near Nikolski, Alaska?
The magnitude 3.1 earthquake that struck 47 km ENE of Nikolski, Alaska on May 27, 2025 at 21:12 UTC had a depth of 88.9 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: us6000qhkc). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, May 27, 2025). M3.1 Earthquake 47 km ENE of Nikolski, Alaska — May 27, 2025. Retrieved August 13, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000qhkc/