M3.5 Earthquake south of Alaska — April 19, 2024
2024-04-19 20:44:18 UTC (2024-04-19) · approx. 10:44 AM UTC-10 local
On April 19, 2024 at 20:44 UTC, a magnitude 3.5 shallow crustal earthquake struck south of Alaska, at a depth of 11.6 km and coordinates 54.0277°, -154.7771°.
Physical scale: An earthquake of magnitude 3.5 releases seismic energy equivalent to roughly 2.7 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 157 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-154.7771°E
Technical Information
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Common Questions
How strong was the magnitude 3.5 earthquake south of Alaska?
The magnitude 3.5 earthquake that struck south of Alaska on April 19, 2024 at 20:44 UTC had a depth of 11.6 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 3.5 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.5 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us6000mz38). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, April 19, 2024). M3.5 Earthquake south of Alaska — April 19, 2024. Retrieved June 25, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000mz38/