M3.4 Earthquake 113 km SSW of Adak, Alaska — January 29, 2025
2025-01-29 15:15:46 UTC (2025-01-29) · approx. 3:15 AM UTC-12 local
On January 29, 2025 at 15:15 UTC, a magnitude 3.4 shallow crustal earthquake struck 113 km SSW of Adak, Alaska, at a depth of 15.8 km and coordinates 50.9243°, -177.2299°.
Physical scale: An earthquake of magnitude 3.4 releases seismic energy equivalent to roughly 1.9 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 134 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-177.2299°E
Technical Information
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Common Questions
How strong was the magnitude 3.4 earthquake near Adak, Alaska?
The magnitude 3.4 earthquake that struck 113 km SSW of Adak, Alaska on January 29, 2025 at 15:15 UTC had a depth of 15.8 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 3.4 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.4 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us7000pfq3). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, January 29, 2025). M3.4 Earthquake 113 km SSW of Adak, Alaska — January 29, 2025. Retrieved April 15, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000pfq3/