M4.5 Earthquake 28 km E of Tinogasta, Argentina — October 29, 2023
2023-10-29 18:51:09 UTC (2023-10-29) · approx. 2:51 PM UTC-4 local
On October 29, 2023 at 18:51 UTC, a magnitude 4.5 intermediate depth earthquake struck 28 km E of Tinogasta, Argentina, at a depth of 130.9 km and coordinates -28.0650°, -67.2706°. This earthquake was detected by 78 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
-67.2706°E
Technical Information
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Common Questions
How strong was the magnitude 4.5 earthquake near Tinogasta, Argentina?
The magnitude 4.5 earthquake that struck 28 km E of Tinogasta, Argentina on October 29, 2023 at 18:51 UTC had a depth of 130.9 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -28.0650°, -67.2706°, which is 28 km E of Tinogasta, 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: us7000l7ek). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, October 29, 2023). M4.5 Earthquake 28 km E of Tinogasta, Argentina — October 29, 2023. Retrieved January 10, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000l7ek/