M3.0 Earthquake 59 km SE of Pedro Bay, Alaska — September 11, 2023
2023-09-11 17:10:11 UTC (2023-09-11) · approx. 7:10 AM UTC-10 local
On September 11, 2023 at 17:10 UTC, a magnitude 3.0 intermediate depth earthquake struck 59 km SE of Pedro Bay, Alaska, at a depth of 103.5 km and coordinates 59.3889°, -153.4067°.
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
-153.4067°E
Technical Information
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Common Questions
How strong was the magnitude 3.0 earthquake near Pedro Bay, Alaska?
The magnitude 3.0 earthquake that struck 59 km SE of Pedro Bay, Alaska on September 11, 2023 at 17:10 UTC had a depth of 103.5 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 3.0 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: ak023bocooo7). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, September 11, 2023). M3.0 Earthquake 59 km SE of Pedro Bay, Alaska — September 11, 2023. Retrieved November 18, 2023 from https://www.earthquaketracker.org/earthquakes/event/ak023bocooo7/