M3.6 Earthquake 22 km E of Unalaska, Alaska — July 3, 2022
2022-07-03 18:16:06 UTC (2022-07-03) · approx. 7:16 AM UTC-11 local
On July 3, 2022 at 18:16 UTC, a magnitude 3.6 intermediate depth earthquake struck 22 km E of Unalaska, Alaska, at a depth of 86.1 km and coordinates 53.8884°, -166.1999°.
Physical scale: An earthquake of magnitude 3.6 releases seismic energy equivalent to roughly 3.8 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 184 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-166.1999°E
Technical Information
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Common Questions
How strong was the magnitude 3.6 earthquake near Unalaska, Alaska?
The magnitude 3.6 earthquake that struck 22 km E of Unalaska, Alaska on July 3, 2022 at 18:16 UTC had a depth of 86.1 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 3.6 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.6 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us7000i267). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, July 3, 2022). M3.6 Earthquake 22 km E of Unalaska, Alaska — July 3, 2022. Retrieved September 13, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000i267/