M4.5 Earthquake 60 km W of San Antonio de los Cobres, Argentina — July 17, 2026
2026-07-17 22:35:28 UTC (3 hours ago) · approx. 6:35 PM UTC-4 local
On July 17, 2026 at 22:35 UTC, a magnitude 4.5 intermediate depth earthquake struck 60 km W of San Antonio de los Cobres, Argentina, at a depth of 188.4 km and coordinates -24.1908°, -66.9098°. This earthquake was detected by 23 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.
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
-66.9098°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.5 earthquake near San Antonio de los Cobres, Argentina?
The magnitude 4.5 earthquake that struck 60 km W of San Antonio de los Cobres, Argentina on July 17, 2026 at 22:35 UTC had a depth of 188.4 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -24.1908°, -66.9098°, which is 60 km W of San Antonio de los Cobres, Argentina.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us7000t1hg). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, July 17, 2026). M4.5 Earthquake 60 km W of San Antonio de los Cobres, Argentina — July 17, 2026. Retrieved July 18, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000t1hg/