M4.6 Earthquake 124 km W of El Aguilar, Argentina — October 10, 2021
2021-10-10 23:21:45 UTC (2021-10-10) · approx. 7:21 PM UTC-4 local
On October 10, 2021 at 23:21 UTC, a magnitude 4.6 intermediate depth earthquake struck 124 km W of El Aguilar, Argentina, at a depth of 235.3 km and coordinates -23.1202°, -66.8885°.
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-66.8885°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.6 earthquake near El Aguilar, Argentina?
The magnitude 4.6 earthquake that struck 124 km W of El Aguilar, Argentina on October 10, 2021 at 23:21 UTC had a depth of 235.3 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -23.1202°, -66.8885°, which is 124 km W of El Aguilar, Argentina.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000ftkq). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, October 10, 2021). M4.6 Earthquake 124 km W of El Aguilar, Argentina — October 10, 2021. Retrieved December 18, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000ftkq/