M5.0 Earthquake 27 km SW of La Libertad, El Salvador — September 18, 2021
2021-09-18 14:43:55 UTC (2021-09-18) · approx. 8:43 AM UTC-6 local
Felt by 13 people across nearby locations.
On September 18, 2021 at 14:43 UTC, a magnitude 5.0 shallow crustal earthquake struck 27 km SW of La Libertad, El Salvador, at a depth of 61.6 km and coordinates 13.3420°, -89.5270°.
Physical scale: An earthquake of magnitude 5.0 releases seismic energy equivalent to roughly 477 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.7 km — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 13 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-89.5270°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 5.0 earthquake near La Libertad, El Salvador?
The magnitude 5.0 earthquake that struck 27 km SW of La Libertad, El Salvador on September 18, 2021 at 14:43 UTC had a depth of 61.6 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 13.3420°, -89.5270°, which is 27 km SW of La Libertad, El Salvador.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.0 earthquakes can continue for days to weeks and gradually diminish over time.
Authoritative source: USGS event page (event ID: us7000fcf7). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, September 18, 2021). M5.0 Earthquake 27 km SW of La Libertad, El Salvador — September 18, 2021. Retrieved November 4, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000fcf7/