M3.2 Earthquake 84 km SSW of False Pass, Alaska — September 12, 2022
2022-09-12 22:59:59 UTC (2022-09-12) · approx. 11:59 AM UTC-11 local
On September 12, 2022 at 22:59 UTC, a magnitude 3.2 shallow crustal earthquake struck 84 km SSW of False Pass, Alaska, at a depth of 62.4 km and coordinates 54.1557°, -163.9287°.
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
-163.9287°E
Technical Information
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Common Questions
How strong was the magnitude 3.2 earthquake near False Pass, Alaska?
The magnitude 3.2 earthquake that struck 84 km SSW of False Pass, Alaska on September 12, 2022 at 22:59 UTC had a depth of 62.4 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: us6000itt7). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, September 12, 2022). M3.2 Earthquake 84 km SSW of False Pass, Alaska — September 12, 2022. Retrieved November 19, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000itt7/