M3.1 Earthquake 9 km W of Chignik Lake, Alaska — November 12, 2024
2024-11-12 19:38:52 UTC (2024-11-12) · approx. 8:38 AM UTC-11 local
On November 12, 2024 at 19:38 UTC, a magnitude 3.1 intermediate depth earthquake struck 9 km W of Chignik Lake, Alaska, at a depth of 87.8 km and coordinates 56.2422°, -158.9178°.
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
-158.9178°E
Technical Information
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Common Questions
How strong was the magnitude 3.1 earthquake near Chignik Lake, Alaska?
The magnitude 3.1 earthquake that struck 9 km W of Chignik Lake, Alaska on November 12, 2024 at 19:38 UTC had a depth of 87.8 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: ak024ekkwi9d). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, November 12, 2024). M3.1 Earthquake 9 km W of Chignik Lake, Alaska — November 12, 2024. Retrieved January 26, 2025 from https://www.earthquaketracker.org/earthquakes/event/ak024ekkwi9d/