M4.5 Earthquake 281 km WSW of Ushuaia, Argentina — October 16, 2020
2020-10-16 18:06:06 UTC (2020-10-16) · approx. 1:06 PM UTC-5 local
On October 16, 2020 at 18:06 UTC, a magnitude 4.5 shallow crustal earthquake struck 281 km WSW of Ushuaia, Argentina, at a depth of 10.0 km and coordinates -56.1857°, -72.0573°.
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
-72.0573°E
Technical Information
Common Questions
How strong was the magnitude 4.5 earthquake near Ushuaia, Argentina?
The magnitude 4.5 earthquake that struck 281 km WSW of Ushuaia, Argentina on October 16, 2020 at 18:06 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -56.1857°, -72.0573°, which is 281 km WSW of Ushuaia, 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: us6000caqp). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, October 16, 2020). M4.5 Earthquake 281 km WSW of Ushuaia, Argentina — October 16, 2020. Retrieved December 29, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000caqp/