M3.5 Earthquake 62 km SW of Nikolski, Alaska — September 23, 2024
2024-09-23 23:57:39 UTC (2024-09-23) · approx. 12:57 PM UTC-11 local
On September 23, 2024 at 23:57 UTC, a magnitude 3.5 shallow crustal earthquake struck 62 km SW of Nikolski, Alaska, at a depth of 28.6 km and coordinates 52.5490°, -169.5226°.
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
-169.5226°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 62 km SW of Nikolski, Alaska on September 23, 2024 at 23:57 UTC had a depth of 28.6 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: us7000nnp8). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, September 23, 2024). M3.5 Earthquake 62 km SW of Nikolski, Alaska — September 23, 2024. Retrieved December 6, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000nnp8/