M3.3 Earthquake 111 km SSW of False Pass, Alaska — October 18, 2024
2024-10-18 16:32:02 UTC (2024-10-18) · approx. 5:32 AM UTC-11 local
On October 18, 2024 at 16:32 UTC, a magnitude 3.3 shallow crustal earthquake struck 111 km SSW of False Pass, Alaska, at a depth of 35.0 km and coordinates 53.8992°, -163.9352°.
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
-163.9352°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.3 earthquake near False Pass, Alaska?
The magnitude 3.3 earthquake that struck 111 km SSW of False Pass, Alaska on October 18, 2024 at 16:32 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 3.3 earthquakes can continue for several days and gradually diminish over time.
Actions
Understanding This Data
Magnitude 3.3 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us7000nucm). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, October 18, 2024). M3.3 Earthquake 111 km SSW of False Pass, Alaska — October 18, 2024. Retrieved December 26, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000nucm/