M3.2 Earthquake 122 km SW of Hydaburg, Alaska — February 13, 2022
2022-02-13 21:10:51 UTC (2022-02-13) · approx. 12:10 PM UTC-9 local
On February 13, 2022 at 21:10 UTC, a magnitude 3.2 shallow crustal earthquake struck 122 km SW of Hydaburg, Alaska, at a depth of 14.5 km and coordinates 54.3850°, -134.0956°.
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
-134.0956°E
Technical Information
Common Questions
How strong was the magnitude 3.2 earthquake near Hydaburg, Alaska?
The magnitude 3.2 earthquake that struck 122 km SW of Hydaburg, Alaska on February 13, 2022 at 21:10 UTC had a depth of 14.5 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 3.2 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: us6000h26q). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, February 13, 2022). M3.2 Earthquake 122 km SW of Hydaburg, Alaska — February 13, 2022. Retrieved April 30, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000h26q/