M3.5 Earthquake 103 km ESE of Akutan, Alaska — September 22, 2022
2022-09-22 17:24:57 UTC (2022-09-22) · approx. 6:24 AM UTC-11 local
On September 22, 2022 at 17:24 UTC, a magnitude 3.5 shallow crustal earthquake struck 103 km ESE of Akutan, Alaska, at a depth of 35.0 km and coordinates 53.7525°, -164.3367°.
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
-164.3367°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.5 earthquake near Akutan, Alaska?
The magnitude 3.5 earthquake that struck 103 km ESE of Akutan, Alaska on September 22, 2022 at 17:24 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 3.5 earthquakes can continue for several days and gradually diminish over time.
Actions
Understanding This Data
Magnitude 3.5 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us7000ia95). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, September 22, 2022). M3.5 Earthquake 103 km ESE of Akutan, Alaska — September 22, 2022. Retrieved November 26, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000ia95/