M3.0 Earthquake 102 km ESE of Atka, Alaska — January 13, 2023
2023-01-13 18:27:33 UTC (2023-01-13) · approx. 6:27 AM UTC-12 local
On January 13, 2023 at 18:27 UTC, a magnitude 3.0 shallow crustal earthquake struck 102 km ESE of Atka, Alaska, at a depth of 27.5 km and coordinates 51.8894°, -172.7967°.
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
-172.7967°E
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Common Questions
How strong was the magnitude 3.0 earthquake near Atka, Alaska?
The magnitude 3.0 earthquake that struck 102 km ESE of Atka, Alaska on January 13, 2023 at 18:27 UTC had a depth of 27.5 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: us6000jjww). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, January 13, 2023). M3.0 Earthquake 102 km ESE of Atka, Alaska — January 13, 2023. Retrieved January 18, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000jjww/