M3.4 Earthquake 94 km ESE of Adak, Alaska — November 16, 2022
2022-11-16 22:34:56 UTC (2022-11-16) · approx. 10:34 AM UTC-12 local
On November 16, 2022 at 22:34 UTC, a magnitude 3.4 shallow crustal earthquake struck 94 km ESE of Adak, Alaska, at a depth of 43.9 km and coordinates 51.4167°, -175.4878°.
Physical scale: An earthquake of magnitude 3.4 releases seismic energy equivalent to roughly 1.9 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 134 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-175.4878°E
Technical Information
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Common Questions
How strong was the magnitude 3.4 earthquake near Adak, Alaska?
The magnitude 3.4 earthquake that struck 94 km ESE of Adak, Alaska on November 16, 2022 at 22:34 UTC had a depth of 43.9 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 3.4 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.4 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us6000j6a6). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, November 16, 2022). M3.4 Earthquake 94 km ESE of Adak, Alaska — November 16, 2022. Retrieved January 28, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000j6a6/