M4.2 Earthquake 156 km SSW of Acajutla, El Salvador — September 6, 2026
2026-09-06 04:00:21 UTC (2026-09-06) · approx. 10:00 PM UTC-6 local
On September 6, 2026 at 04:00 UTC, a magnitude 4.2 shallow crustal earthquake struck 156 km SSW of Acajutla, El Salvador, at a depth of 10.0 km and coordinates 12.3439°, -90.5074°.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-90.5074°E
Technical Information
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Common Questions
How strong was the magnitude 4.2 earthquake near Acajutla, El Salvador?
The magnitude 4.2 earthquake that struck 156 km SSW of Acajutla, El Salvador on September 6, 2026 at 04:00 UTC had a depth of 10.0 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 4.2 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000teme). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 6, 2026). M4.2 Earthquake 156 km SSW of Acajutla, El Salvador — September 6, 2026. Retrieved September 26, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000teme/