M3.5 Earthquake 18 km ENE of Nikolski, Alaska — November 5, 2023
2023-11-05 16:55:58 UTC (2023-11-05) · approx. 5:55 AM UTC-11 local
On November 5, 2023 at 16:55 UTC, a magnitude 3.5 shallow crustal earthquake struck 18 km ENE of Nikolski, Alaska, at a depth of 69.2 km and coordinates 52.9992°, -168.6001°.
Physical scale: An earthquake of magnitude 3.5 releases seismic energy equivalent to roughly 2.7 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 157 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-168.6001°E
Technical Information
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Common Questions
How strong was the magnitude 3.5 earthquake near Nikolski, Alaska?
The magnitude 3.5 earthquake that struck 18 km ENE of Nikolski, Alaska on November 5, 2023 at 16:55 UTC had a depth of 69.2 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 3.5 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.5 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us6000lpwt). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, November 5, 2023). M3.5 Earthquake 18 km ENE of Nikolski, Alaska — November 5, 2023. Retrieved January 13, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000lpwt/