M4.5 Earthquake 112 km N of Barrancas, Argentina — August 16, 2023
2023-08-16 15:55:42 UTC (2023-08-16) · approx. 10:55 AM UTC-5 local
On August 16, 2023 at 15:55 UTC, a magnitude 4.5 intermediate depth earthquake struck 112 km N of Barrancas, Argentina, at a depth of 169.0 km and coordinates -35.8087°, -69.8756°. This earthquake was detected by 60 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
-69.8756°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.5 earthquake near Barrancas, Argentina?
The magnitude 4.5 earthquake that struck 112 km N of Barrancas, Argentina on August 16, 2023 at 15:55 UTC had a depth of 169.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -35.8087°, -69.8756°, which is 112 km N of Barrancas, 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: us7000knsl). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, August 16, 2023). M4.5 Earthquake 112 km N of Barrancas, Argentina — August 16, 2023. Retrieved October 27, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000knsl/