M3.2 Earthquake 82 km WSW of Adak, Alaska — June 18, 2022
2022-06-18 23:53:46 UTC (2022-06-18) · approx. 11:53 AM UTC-12 local
On June 18, 2022 at 23:53 UTC, a magnitude 3.2 shallow crustal earthquake struck 82 km WSW of Adak, Alaska, at a depth of 65.2 km and coordinates 51.5203°, -177.6901°.
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
-177.6901°E
Technical Information
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Common Questions
How strong was the magnitude 3.2 earthquake near Adak, Alaska?
The magnitude 3.2 earthquake that struck 82 km WSW of Adak, Alaska on June 18, 2022 at 23:53 UTC had a depth of 65.2 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: us6000i9ki). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, June 18, 2022). M3.2 Earthquake 82 km WSW of Adak, Alaska — June 18, 2022. Retrieved August 28, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000i9ki/