M4.3 Earthquake 104 km S of La Libertad, El Salvador — July 29, 2026
2026-07-29 01:00:51 UTC (2026-07-29) · approx. 7:00 PM UTC-6 local
On July 29, 2026 at 01:00 UTC, a magnitude 4.3 shallow crustal earthquake struck 104 km S of La Libertad, El Salvador, at a depth of 35.0 km and coordinates 12.5442°, -89.3437°.
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-89.3437°E
Technical Information
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Common Questions
How strong was the magnitude 4.3 earthquake near La Libertad, El Salvador?
The magnitude 4.3 earthquake that struck 104 km S of La Libertad, El Salvador on July 29, 2026 at 01:00 UTC had a depth of 35.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.3 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000thtj). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, July 29, 2026). M4.3 Earthquake 104 km S of La Libertad, El Salvador — July 29, 2026. Retrieved August 14, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000thtj/