M3.0 Earthquake 106 km ESE of Akutan, Alaska — February 7, 2021
2021-02-07 21:56:12 UTC (2021-02-07) · approx. 10:56 AM UTC-11 local
On February 7, 2021 at 21:56 UTC, a magnitude 3.0 shallow crustal earthquake struck 106 km ESE of Akutan, Alaska, at a depth of 16.4 km and coordinates 53.6641°, -164.3616°.
Physical scale: An earthquake of magnitude 3.0 releases seismic energy equivalent to roughly 477 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 71 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-164.3616°E
Technical Information
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Common Questions
How strong was the magnitude 3.0 earthquake near Akutan, Alaska?
The magnitude 3.0 earthquake that struck 106 km ESE of Akutan, Alaska on February 7, 2021 at 21:56 UTC had a depth of 16.4 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 3.0 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.0 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us6000djm4). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, February 7, 2021). M3.0 Earthquake 106 km ESE of Akutan, Alaska — February 7, 2021. Retrieved April 22, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000djm4/