M3.2 Earthquake 31 km WNW of Atka, Alaska — May 28, 2025
2025-05-28 19:53:17 UTC (2025-05-28) · approx. 7:53 AM UTC-12 local
On May 28, 2025 at 19:53 UTC, a magnitude 3.2 intermediate depth earthquake struck 31 km WNW of Atka, Alaska, at a depth of 212.9 km and coordinates 52.2628°, -174.6456°.
Physical scale: An earthquake of magnitude 3.2 releases seismic energy equivalent to roughly 951 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 97 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-174.6456°E
Technical Information
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Common Questions
How strong was the magnitude 3.2 earthquake near Atka, Alaska?
The magnitude 3.2 earthquake that struck 31 km WNW of Atka, Alaska on May 28, 2025 at 19:53 UTC had a depth of 212.9 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 3.2 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.2 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us6000qhig). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, May 28, 2025). M3.2 Earthquake 31 km WNW of Atka, Alaska — May 28, 2025. Retrieved August 16, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000qhig/