M4.4 Earthquake 28 km S of La Libertad, El Salvador — October 18, 2023
2023-10-18 18:29:42 UTC (2023-10-18) · approx. 12:29 PM UTC-6 local
Felt by 11 people across nearby locations.
On October 18, 2023 at 18:29 UTC, a magnitude 4.4 shallow crustal earthquake struck 28 km S of La Libertad, El Salvador, at a depth of 67.7 km and coordinates 13.2327°, -89.3175°. This earthquake was detected by 67 seismic stations with good location accuracy and was assigned a USGS significance rating of 302, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 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 11 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
-89.3175°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.4 earthquake near La Libertad, El Salvador?
The magnitude 4.4 earthquake that struck 28 km S of La Libertad, El Salvador on October 18, 2023 at 18:29 UTC had a depth of 67.7 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 13.2327°, -89.3175°, which is 28 km S of La Libertad, El Salvador.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.4 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000lgf2). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, October 18, 2023). M4.4 Earthquake 28 km S of La Libertad, El Salvador — October 18, 2023. Retrieved December 26, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000lgf2/