M4.1 Earthquake 55 km S of Intipucá, El Salvador — December 12, 2020
2020-12-12 17:23:43 UTC (2020-12-12) · approx. 11:23 AM UTC-6 local
On December 12, 2020 at 17:23 UTC, a magnitude 4.1 shallow crustal earthquake struck 55 km S of Intipucá, El Salvador, at a depth of 53.1 km and coordinates 12.7017°, -87.9704°.
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
-87.9704°E
Technical Information
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Common Questions
How strong was the magnitude 4.1 earthquake near Intipucá, El Salvador?
The magnitude 4.1 earthquake that struck 55 km S of Intipucá, El Salvador on December 12, 2020 at 17:23 UTC had a depth of 53.1 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: us7000cqls). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, December 12, 2020). M4.1 Earthquake 55 km S of Intipucá, El Salvador — December 12, 2020. Retrieved February 20, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000cqls/