M4.5 Earthquake 92 km NNW of San Antonio de los Cobres, Argentina — January 25, 2021
2021-01-25 20:35:37 UTC (2021-01-25) · approx. 4:35 PM UTC-4 local
On January 25, 2021 at 20:35 UTC, a magnitude 4.5 intermediate depth earthquake struck 92 km NNW of San Antonio de los Cobres, Argentina, at a depth of 211.0 km and coordinates -23.4680°, -66.7210°.
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
-66.7210°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 92 km NNW of San Antonio de los Cobres, Argentina on January 25, 2021 at 20:35 UTC had a depth of 211.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -23.4680°, -66.7210°, which is 92 km NNW 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: us7000d38f). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, January 25, 2021). M4.5 Earthquake 92 km NNW of San Antonio de los Cobres, Argentina — January 25, 2021. Retrieved April 13, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000d38f/