M3.7 Earthquake 200 km WSW of Adak, Alaska — October 4, 2024
2024-10-04 21:06:06 UTC (2024-10-04) · approx. 9:06 AM UTC-12 local
On October 4, 2024 at 21:06 UTC, a magnitude 3.7 shallow crustal earthquake struck 200 km WSW of Adak, Alaska, at a depth of 36.1 km and coordinates 51.1736°, -179.2954°.
Physical scale: An earthquake of magnitude 3.7 releases seismic energy equivalent to roughly 5.4 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 215 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-179.2954°E
Technical Information
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Common Questions
How strong was the magnitude 3.7 earthquake near Adak, Alaska?
The magnitude 3.7 earthquake that struck 200 km WSW of Adak, Alaska on October 4, 2024 at 21:06 UTC had a depth of 36.1 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 3.7 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.7 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us6000nwmc). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, October 4, 2024). M3.7 Earthquake 200 km WSW of Adak, Alaska — October 4, 2024. Retrieved December 14, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000nwmc/