M3.8 Earthquake 160 km SE of Attu Station, Alaska — May 23, 2024
2024-05-23 22:27:13 UTC (2024-05-23) · approx. 10:27 AM UTC+12 local
On May 23, 2024 at 22:27 UTC, a magnitude 3.8 shallow crustal earthquake struck 160 km SE of Attu Station, Alaska, at a depth of 35.0 km and coordinates 51.8358°, 174.8677°.
Physical scale: An earthquake of magnitude 3.8 releases seismic energy equivalent to roughly 7.6 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 252 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
174.8677°E
Technical Information
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Common Questions
How strong was the magnitude 3.8 earthquake near Attu Station, Alaska?
The magnitude 3.8 earthquake that struck 160 km SE of Attu Station, Alaska on May 23, 2024 at 22:27 UTC had a depth of 35.0 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 3.8 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.8 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us7000mp1e). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, May 23, 2024). M3.8 Earthquake 160 km SE of Attu Station, Alaska — May 23, 2024. Retrieved August 6, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000mp1e/