M4.1 Earthquake 41 km SW of La Libertad, El Salvador — June 15, 2021
2021-06-15 22:42:30 UTC (2021-06-15) · approx. 4:42 PM UTC-6 local
On June 15, 2021 at 22:42 UTC, a magnitude 4.1 shallow crustal earthquake struck 41 km SW of La Libertad, El Salvador, at a depth of 48.9 km and coordinates 13.2135°, -89.5843°.
Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-89.5843°E
Technical Information
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Common Questions
How strong was the magnitude 4.1 earthquake near La Libertad, El Salvador?
The magnitude 4.1 earthquake that struck 41 km SW of La Libertad, El Salvador on June 15, 2021 at 22:42 UTC had a depth of 48.9 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 4.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.1 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000edd3). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, June 15, 2021). M4.1 Earthquake 41 km SW of La Libertad, El Salvador — June 15, 2021. Retrieved August 26, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000edd3/