M3.4 Earthquake 7 km NNW of Edgefield, Louisiana — August 21, 2026
2026-08-21 20:00:37 UTC (56 min ago) · approx. 2:00 PM UTC-6 local
Felt by 40 people across nearby locations.
On August 21, 2026 at 20:00 UTC, a magnitude 3.4 shallow crustal earthquake struck 7 km NNW of Edgefield, Louisiana, at a depth of 5.0 km and coordinates 32.1138°, -93.3580°. This earthquake was detected by 27 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 196, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 3.4 releases seismic energy equivalent to roughly 1.9 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 134 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 40 citizen responses 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
-93.3580°E
Technical Information
Common Questions
How strong was the magnitude 3.4 earthquake near Edgefield, Louisiana?
The magnitude 3.4 earthquake that struck 7 km NNW of Edgefield, Louisiana on August 21, 2026 at 20:00 UTC had a depth of 5.0 km. For context, this was a minor earthquake typically detected only by instruments.
Where did the earthquake occur?
The earthquake epicenter was located at 32.1138°, -93.3580°, which is 7 km NNW of Edgefield, Louisiana.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.4 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000tmms). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, August 21, 2026). M3.4 Earthquake 7 km NNW of Edgefield, Louisiana — August 21, 2026. Retrieved August 21, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tmms/