M3.5 Earthquake 290 km ESE of Attu Station, Alaska — June 15, 2022
2022-06-15 19:11:46 UTC (2022-06-15) · approx. 7:11 AM UTC+12 local
On June 15, 2022 at 19:11 UTC, a magnitude 3.5 intermediate depth earthquake struck 290 km ESE of Attu Station, Alaska, at a depth of 73.3 km and coordinates 51.6620°, 176.9711°.
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
176.9711°E
Technical Information
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Common Questions
How strong was the magnitude 3.5 earthquake near Attu Station, Alaska?
The magnitude 3.5 earthquake that struck 290 km ESE of Attu Station, Alaska on June 15, 2022 at 19:11 UTC had a depth of 73.3 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: us6000i94y). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, June 15, 2022). M3.5 Earthquake 290 km ESE of Attu Station, Alaska — June 15, 2022. Retrieved August 21, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000i94y/