M4.7 Earthquake 98 km S of La Libertad, El Salvador — December 1, 2021
2021-12-01 22:30:46 UTC (2021-12-01) · approx. 4:30 PM UTC-6 local
On December 1, 2021 at 22:30 UTC, a magnitude 4.7 shallow crustal earthquake struck 98 km S of La Libertad, El Salvador, at a depth of 10.0 km and coordinates 12.6013°, -89.3991°.
Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-89.3991°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.7 earthquake near La Libertad, El Salvador?
The magnitude 4.7 earthquake that struck 98 km S of La Libertad, El Salvador on December 1, 2021 at 22:30 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 12.6013°, -89.3991°, which is 98 km S of La Libertad, El Salvador.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000g8aj). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, December 1, 2021). M4.7 Earthquake 98 km S of La Libertad, El Salvador — December 1, 2021. Retrieved January 17, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000g8aj/