M2.2 Earthquake 1 km SE of Alcoa, Tennessee — July 25, 2022
2022-07-25 18:09:27 UTC (2022-07-25) · approx. 12:09 PM UTC-6 local
On July 25, 2022 at 18:09 UTC, a magnitude 2.2 shallow crustal earthquake struck 1 km SE of Alcoa, Tennessee, at a depth of 16.5 km and coordinates 35.7807°, -83.9630°.
Physical scale: An earthquake of magnitude 2.2 releases seismic energy equivalent to roughly 33.4 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 21 m — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-83.9630°E
Technical Information
Common Questions
How strong was the magnitude 2.2 earthquake near Alcoa, Tennessee?
The magnitude 2.2 earthquake that struck 1 km SE of Alcoa, Tennessee on July 25, 2022 at 18:09 UTC had a depth of 16.5 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 2.2 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 2.2 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: se60401297). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, July 25, 2022). M2.2 Earthquake 1 km SE of Alcoa, Tennessee — July 25, 2022. Retrieved July 25, 2022 from https://www.earthquaketracker.org/earthquakes/event/se60401297/