M4.0 Earthquake 103 km NW of San Antonio de los Cobres, Argentina — September 15, 2022
2022-09-15 23:06:38 UTC (2022-09-15) · approx. 7:06 PM UTC-4 local
On September 15, 2022 at 23:06 UTC, a magnitude 4.0 intermediate depth earthquake struck 103 km NW of San Antonio de los Cobres, Argentina, at a depth of 239.1 km and coordinates -23.4551°, -66.9055°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-66.9055°E
Technical Information
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Common Questions
How strong was the magnitude 4.0 earthquake near San Antonio de los Cobres, Argentina?
The magnitude 4.0 earthquake that struck 103 km NW of San Antonio de los Cobres, Argentina on September 15, 2022 at 23:06 UTC had a depth of 239.1 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 4.0 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000i8ed). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, September 15, 2022). M4.0 Earthquake 103 km NW of San Antonio de los Cobres, Argentina — September 15, 2022. Retrieved November 19, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000i8ed/