M4.6 Earthquake 103 km W of San Antonio de los Cobres, Argentina — October 3, 2021
2021-10-03 21:31:00 UTC (2021-10-03) · approx. 5:31 PM UTC-4 local
On October 3, 2021 at 21:31 UTC, a magnitude 4.6 intermediate depth earthquake struck 103 km W of San Antonio de los Cobres, Argentina, at a depth of 204.9 km and coordinates -24.2138°, -67.3410°.
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
-67.3410°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.6 earthquake near San Antonio de los Cobres, Argentina?
The magnitude 4.6 earthquake that struck 103 km W of San Antonio de los Cobres, Argentina on October 3, 2021 at 21:31 UTC had a depth of 204.9 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -24.2138°, -67.3410°, which is 103 km W of San Antonio de los Cobres, 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: us6000frdq). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, October 3, 2021). M4.6 Earthquake 103 km W of San Antonio de los Cobres, Argentina — October 3, 2021. Retrieved December 10, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000frdq/