M3.1 Earthquake 7 km S of Mooringsport, Louisiana — December 20, 2024
2024-12-20 23:19:49 UTC (2024-12-20) · approx. 5:19 PM UTC-6 local
Felt by 28 people across nearby locations.
On December 20, 2024 at 23:19 UTC, a magnitude 3.1 shallow crustal earthquake struck 7 km S of Mooringsport, Louisiana, at a depth of 5.0 km and coordinates 32.6198°, -93.9719°. This earthquake was detected by 26 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 157, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 674 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 83 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 28 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
-93.9719°E
Technical Information
Common Questions
How strong was the magnitude 3.1 earthquake near Mooringsport, Louisiana?
The magnitude 3.1 earthquake that struck 7 km S of Mooringsport, Louisiana on December 20, 2024 at 23:19 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 32.6198°, -93.9719°, which is 7 km S of Mooringsport, Louisiana.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.1 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us7000p0i4). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, December 20, 2024). M3.1 Earthquake 7 km S of Mooringsport, Louisiana — December 20, 2024. Retrieved February 27, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000p0i4/