M3.3 Earthquake 169 km E of Atka, Alaska — March 15, 2024
2024-03-15 22:52:50 UTC (2024-03-15) · approx. 11:52 AM UTC-11 local
On March 15, 2024 at 22:52 UTC, a magnitude 3.3 shallow crustal earthquake struck 169 km E of Atka, Alaska, at a depth of 59.8 km and coordinates 52.2946°, -171.7202°.
Physical scale: An earthquake of magnitude 3.3 releases seismic energy equivalent to roughly 1.3 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 114 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-171.7202°E
Technical Information
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Common Questions
How strong was the magnitude 3.3 earthquake near Atka, Alaska?
The magnitude 3.3 earthquake that struck 169 km E of Atka, Alaska on March 15, 2024 at 22:52 UTC had a depth of 59.8 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 3.3 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.3 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us7000m9gz). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, March 15, 2024). M3.3 Earthquake 169 km E of Atka, Alaska — March 15, 2024. Retrieved May 18, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000m9gz/