M3.1 Earthquake 101 km NW of Yakutat, Alaska — March 28, 2025
2025-03-28 22:02:16 UTC (2025-03-28) · approx. 1:02 PM UTC-9 local
On March 28, 2025 at 22:02 UTC, a magnitude 3.1 shallow crustal earthquake struck 101 km NW of Yakutat, Alaska, at a depth of 13.4 km and coordinates 60.1768°, -141.0455°.
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
-141.0455°E
Technical Information
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Common Questions
How strong was the magnitude 3.1 earthquake near Yakutat, Alaska?
The magnitude 3.1 earthquake that struck 101 km NW of Yakutat, Alaska on March 28, 2025 at 22:02 UTC had a depth of 13.4 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: ak025408v6z2). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, March 28, 2025). M3.1 Earthquake 101 km NW of Yakutat, Alaska — March 28, 2025. Retrieved June 6, 2025 from https://www.earthquaketracker.org/earthquakes/event/ak025408v6z2/