M5.0 Earthquake 40 km N of Burruyacú, Argentina — December 20, 2021
2021-12-20 16:34:26 UTC (2021-12-20) · approx. 12:34 PM UTC-4 local
Felt by 3 people across nearby locations.
On December 20, 2021 at 16:34 UTC, a magnitude 5.0 shallow crustal earthquake struck 40 km N of Burruyacú, Argentina, at a depth of 10.0 km and coordinates -26.1349°, -64.6880°.
Physical scale: An earthquake of magnitude 5.0 releases seismic energy equivalent to roughly 477 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.7 km — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 3 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-64.6880°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 5.0 earthquake near Burruyacú, Argentina?
The magnitude 5.0 earthquake that struck 40 km N of Burruyacú, Argentina on December 20, 2021 at 16:34 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at -26.1349°, -64.6880°, which is 40 km N of Burruyacú, Argentina.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.0 earthquakes can continue for days to weeks and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000gdvs). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, December 20, 2021). M5.0 Earthquake 40 km N of Burruyacú, Argentina — December 20, 2021. Retrieved December 22, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000gdvs/