M3.3 Earthquake 39 km W of Nikiski, Alaska — August 25, 2024
2024-08-25 23:17:46 UTC (2024-08-25) · approx. 1:17 PM UTC-10 local
On August 25, 2024 at 23:17 UTC, a magnitude 3.3 intermediate depth earthquake struck 39 km W of Nikiski, Alaska, at a depth of 86.2 km and coordinates 60.7365°, -151.9982°.
Physical scale: An earthquake of magnitude 3.3 releases seismic energy equivalent to roughly 1.3 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 114 m — a useful intuition for the size of the slip patch on the fault.

Earthquake Details
-151.9982°E
Technical Information
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Common Questions
How strong was the magnitude 3.3 earthquake near Nikiski, Alaska?
The magnitude 3.3 earthquake that struck 39 km W of Nikiski, Alaska on August 25, 2024 at 23:17 UTC had a depth of 86.2 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 3.3 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.3 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: ak024axzpb69). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, August 25, 2024). M3.3 Earthquake 39 km W of Nikiski, Alaska — August 25, 2024. Retrieved November 2, 2024 from https://www.earthquaketracker.org/earthquakes/event/ak024axzpb69/