M3.1 Earthquake 92 km E of Atka, Alaska — June 11, 2022
2022-06-11 19:11:44 UTC (2022-06-11) · approx. 7:11 AM UTC-12 local
On June 11, 2022 at 19:11 UTC, a magnitude 3.1 shallow crustal earthquake struck 92 km E of Atka, Alaska, at a depth of 5.5 km and coordinates 52.1345°, -172.8584°.
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
-172.8584°E
Technical Information
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Common Questions
How strong was the magnitude 3.1 earthquake near Atka, Alaska?
The magnitude 3.1 earthquake that struck 92 km E of Atka, Alaska on June 11, 2022 at 19:11 UTC had a depth of 5.5 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 3.1 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: us6000i7w0). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, June 11, 2022). M3.1 Earthquake 92 km E of Atka, Alaska — June 11, 2022. Retrieved August 21, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000i7w0/