M4.5 Earthquake 69 km W of Vinchina, Argentina — January 26, 2021
2021-01-26 23:37:58 UTC (2021-01-26) · approx. 6:37 PM UTC-5 local
On January 26, 2021 at 23:37 UTC, a magnitude 4.5 intermediate depth earthquake struck 69 km W of Vinchina, Argentina, at a depth of 106.1 km and coordinates -28.7978°, -68.9220°.
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
-68.9220°E
Technical Information
Common Questions
How strong was the magnitude 4.5 earthquake near Vinchina, Argentina?
The magnitude 4.5 earthquake that struck 69 km W of Vinchina, Argentina on January 26, 2021 at 23:37 UTC had a depth of 106.1 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -28.7978°, -68.9220°, which is 69 km W of Vinchina, 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.
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Location
Authoritative source: USGS event page (event ID: us7000d3jg). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, January 26, 2021). M4.5 Earthquake 69 km W of Vinchina, Argentina — January 26, 2021. Retrieved April 13, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000d3jg/