M3.0 Earthquake near Gulf of Alaska — November 20, 2023
2023-11-20 20:06:33 UTC (2023-11-20) · approx. 10:06 AM UTC-10 local
On November 20, 2023 at 20:06 UTC, a magnitude 3.0 shallow crustal earthquake struck near Gulf of Alaska, at a depth of 28.0 km and coordinates 59.1444°, -145.0932°.
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
-145.0932°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.0 earthquake near Gulf of Alaska?
The magnitude 3.0 earthquake that struck near Gulf of Alaska on November 20, 2023 at 20:06 UTC had a depth of 28.0 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: ak023ew62gxi). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, November 20, 2023). M3.0 Earthquake near Gulf of Alaska — November 20, 2023. Retrieved February 1, 2024 from https://www.earthquaketracker.org/earthquakes/event/ak023ew62gxi/