M5.3 Earthquake 48 km W of San Antonio de los Cobres, Argentina — January 1, 2026
2026-01-01 04:26:24 UTC (2026-01-01) · approx. 12:26 AM UTC-4 local
Felt by 1 person across nearby locations.
On January 1, 2026 at 04:26 UTC, a magnitude 5.3 intermediate depth earthquake struck 48 km W of San Antonio de los Cobres, Argentina, at a depth of 181.1 km and coordinates -24.2251°, -66.7939°. This earthquake was detected by 65 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 432, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.3 releases seismic energy equivalent to roughly 1 kilotons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.7 km — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-66.7939°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 5.3 earthquake near San Antonio de los Cobres, Argentina?
The magnitude 5.3 earthquake that struck 48 km W of San Antonio de los Cobres, Argentina on January 1, 2026 at 04:26 UTC had a depth of 181.1 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at -24.2251°, -66.7939°, which is 48 km W of San Antonio de los Cobres, Argentina.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.3 earthquakes can continue for days to weeks and gradually diminish over time.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.
Authoritative source: USGS event page (event ID: us7000rlu1). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, January 1, 2026). M5.3 Earthquake 48 km W of San Antonio de los Cobres, Argentina — January 1, 2026. Retrieved May 15, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000rlu1/