M4.4 Earthquake 93 km NW of San Antonio de los Cobres, Argentina — December 22, 2022
2022-12-22 22:17:07 UTC (2022-12-22) · approx. 6:17 PM UTC-4 local
On December 22, 2022 at 22:17 UTC, a magnitude 4.4 intermediate depth earthquake struck 93 km NW of San Antonio de los Cobres, Argentina, at a depth of 205.2 km and coordinates -23.5759°, -66.9088°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-66.9088°E
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Common Questions
How strong was the magnitude 4.4 earthquake near San Antonio de los Cobres, Argentina?
The magnitude 4.4 earthquake that struck 93 km NW of San Antonio de los Cobres, Argentina on December 22, 2022 at 22:17 UTC had a depth of 205.2 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.4 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000jb6h). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, December 22, 2022). M4.4 Earthquake 93 km NW of San Antonio de los Cobres, Argentina — December 22, 2022. Retrieved February 28, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000jb6h/