M4.5 Earthquake 26 km S of Cachí, Argentina — January 6, 2023
2023-01-06 20:06:19 UTC (2023-01-06) · approx. 4:06 PM UTC-4 local
On January 6, 2023 at 20:06 UTC, a magnitude 4.5 intermediate depth earthquake struck 26 km S of Cachí, Argentina, at a depth of 203.3 km and coordinates -25.3526°, -66.2082°. This earthquake was detected by 54 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.
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
-66.2082°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.5 earthquake near Cachí, Argentina?
The magnitude 4.5 earthquake that struck 26 km S of Cachí, Argentina on January 6, 2023 at 20:06 UTC had a depth of 203.3 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -25.3526°, -66.2082°, which is 26 km S of Cachí, 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: us7000j2mm). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, January 6, 2023). M4.5 Earthquake 26 km S of Cachí, Argentina — January 6, 2023. Retrieved March 11, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000j2mm/