M3.1 Earthquake 68 km NNE of Petersville, Alaska — October 19, 2024
2024-10-19 22:23:03 UTC (2024-10-19) · approx. 12:23 PM UTC-10 local
On October 19, 2024 at 22:23 UTC, a magnitude 3.1 intermediate depth earthquake struck 68 km NNE of Petersville, Alaska, at a depth of 105.9 km and coordinates 63.0752°, -150.2931°.
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
-150.2931°E
Technical Information
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Common Questions
How strong was the magnitude 3.1 earthquake near Petersville, Alaska?
The magnitude 3.1 earthquake that struck 68 km NNE of Petersville, Alaska on October 19, 2024 at 22:23 UTC had a depth of 105.9 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: ak024dgxp5sa). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, October 19, 2024). M3.1 Earthquake 68 km NNE of Petersville, Alaska — October 19, 2024. Retrieved December 26, 2024 from https://www.earthquaketracker.org/earthquakes/event/ak024dgxp5sa/