M3.1 Earthquake 58 km SSE of Kokhanok, Alaska — June 23, 2023
2023-06-23 22:04:30 UTC (2023-06-23) · approx. 12:04 PM UTC-10 local
On June 23, 2023 at 22:04 UTC, a magnitude 3.1 intermediate depth earthquake struck 58 km SSE of Kokhanok, Alaska, at a depth of 120.5 km and coordinates 58.9859°, -154.2721°.
Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 674 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 83 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-154.2721°E
Technical Information
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Common Questions
How strong was the magnitude 3.1 earthquake near Kokhanok, Alaska?
The magnitude 3.1 earthquake that struck 58 km SSE of Kokhanok, Alaska on June 23, 2023 at 22:04 UTC had a depth of 120.5 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 3.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.1 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: ak023804mube). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, June 23, 2023). M3.1 Earthquake 58 km SSE of Kokhanok, Alaska — June 23, 2023. Retrieved August 26, 2023 from https://www.earthquaketracker.org/earthquakes/event/ak023804mube/