M4.5 Earthquake 47 km SW of Puerto El Triunfo, El Salvador — December 13, 2021
2021-12-13 23:40:29 UTC (2021-12-13) · approx. 5:40 PM UTC-6 local
On December 13, 2021 at 23:40 UTC, a magnitude 4.5 shallow crustal earthquake struck 47 km SW of Puerto El Triunfo, El Salvador, at a depth of 59.9 km and coordinates 12.9439°, -88.8150°.
Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-88.8150°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.5 earthquake near Puerto El Triunfo, El Salvador?
The magnitude 4.5 earthquake that struck 47 km SW of Puerto El Triunfo, El Salvador on December 13, 2021 at 23:40 UTC had a depth of 59.9 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 12.9439°, -88.8150°, which is 47 km SW of Puerto El Triunfo, El Salvador.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000gc1b). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, December 13, 2021). M4.5 Earthquake 47 km SW of Puerto El Triunfo, El Salvador — December 13, 2021. Retrieved February 24, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000gc1b/