M3.2 Earthquake 77 km E of Atka, Alaska — October 30, 2024
2024-10-30 20:58:33 UTC (2024-10-30) · approx. 8:58 AM UTC-12 local
On October 30, 2024 at 20:58 UTC, a magnitude 3.2 shallow crustal earthquake struck 77 km E of Atka, Alaska, at a depth of 8.5 km and coordinates 52.3167°, -173.0801°.
Physical scale: An earthquake of magnitude 3.2 releases seismic energy equivalent to roughly 951 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 97 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-173.0801°E
Technical Information
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Common Questions
How strong was the magnitude 3.2 earthquake near Atka, Alaska?
The magnitude 3.2 earthquake that struck 77 km E of Atka, Alaska on October 30, 2024 at 20:58 UTC had a depth of 8.5 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 3.2 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.2 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us7000nxid). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, October 30, 2024). M3.2 Earthquake 77 km E of Atka, Alaska — October 30, 2024. Retrieved January 16, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000nxid/