M3.5 Earthquake 218 km SW of Yakutat, Alaska — October 11, 2022
2022-10-11 22:24:09 UTC (2022-10-11) · approx. 12:24 PM UTC-10 local
On October 11, 2022 at 22:24 UTC, a magnitude 3.5 shallow crustal earthquake struck 218 km SW of Yakutat, Alaska, at a depth of 10.0 km and coordinates 58.3814°, -142.7776°.
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
-142.7776°E
Technical Information
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Common Questions
How strong was the magnitude 3.5 earthquake near Yakutat, Alaska?
The magnitude 3.5 earthquake that struck 218 km SW of Yakutat, Alaska on October 11, 2022 at 22:24 UTC had a depth of 10.0 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: us6000isuu). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, October 11, 2022). M3.5 Earthquake 218 km SW of Yakutat, Alaska — October 11, 2022. Retrieved December 17, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000isuu/