M4.1 Earthquake 171 km SSW of Nikolski, Alaska — October 29, 2024
2024-10-29 21:15:26 UTC (2024-10-29) · approx. 10:15 AM UTC-11 local
On October 29, 2024 at 21:15 UTC, a magnitude 4.1 shallow crustal earthquake struck 171 km SSW of Nikolski, Alaska, at a depth of 10.0 km and coordinates 51.6261°, -170.1678°.
Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-170.1678°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.1 earthquake near Nikolski, Alaska?
The magnitude 4.1 earthquake that struck 171 km SSW of Nikolski, Alaska on October 29, 2024 at 21:15 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.1 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000ns17). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, October 29, 2024). M4.1 Earthquake 171 km SSW of Nikolski, Alaska — October 29, 2024. Retrieved January 16, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000ns17/