M3.0 Earthquake 192 km SE of Perryville, Alaska — October 25, 2022
2022-10-25 23:19:46 UTC (2022-10-25) · approx. 1:19 PM UTC-10 local
On October 25, 2022 at 23:19 UTC, a magnitude 3.0 shallow crustal earthquake struck 192 km SE of Perryville, Alaska, at a depth of 9.2 km and coordinates 54.8088°, -156.8156°.
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
-156.8156°E
Technical Information
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Common Questions
How strong was the magnitude 3.0 earthquake near Perryville, Alaska?
The magnitude 3.0 earthquake that struck 192 km SE of Perryville, Alaska on October 25, 2022 at 23:19 UTC had a depth of 9.2 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 3.0 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: ak022dp7yjqd). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, October 25, 2022). M3.0 Earthquake 192 km SE of Perryville, Alaska — October 25, 2022. Retrieved January 3, 2023 from https://www.earthquaketracker.org/earthquakes/event/ak022dp7yjqd/