M3.1 Earthquake 48 km SSW of Nelson Lagoon, Alaska — May 29, 2023
2023-05-29 23:27:17 UTC (2023-05-29) · approx. 12:27 PM UTC-11 local
On May 29, 2023 at 23:27 UTC, a magnitude 3.1 intermediate depth earthquake struck 48 km SSW of Nelson Lagoon, Alaska, at a depth of 172.8 km and coordinates 55.6083°, -161.5368°.
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
-161.5368°E
Technical Information
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Common Questions
How strong was the magnitude 3.1 earthquake near Nelson Lagoon, Alaska?
The magnitude 3.1 earthquake that struck 48 km SSW of Nelson Lagoon, Alaska on May 29, 2023 at 23:27 UTC had a depth of 172.8 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 3.1 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: us7000k5pr). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, May 29, 2023). M3.1 Earthquake 48 km SSW of Nelson Lagoon, Alaska — May 29, 2023. Retrieved August 5, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000k5pr/