M4.6 Earthquake 108 km W of San Antonio de los Cobres, Argentina — October 22, 2025
2025-10-22 11:00:57 UTC (2025-10-22) · approx. 7:00 AM UTC-4 local
On October 22, 2025 at 11:00 UTC, a magnitude 4.6 intermediate depth earthquake struck 108 km W of San Antonio de los Cobres, Argentina, at a depth of 176.8 km and coordinates -24.3200°, -67.3769°. This earthquake was detected by 15 seismic stations with moderate location accuracy and was assigned a USGS significance rating of 326, placing it among routine seismic activity.
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
-67.3769°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 108 km W of San Antonio de los Cobres, Argentina on October 22, 2025 at 11:00 UTC had a depth of 176.8 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -24.3200°, -67.3769°, which is 108 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: us6000rin0). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, October 22, 2025). M4.6 Earthquake 108 km W of San Antonio de los Cobres, Argentina — October 22, 2025. Retrieved January 15, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rin0/