M5.0 Earthquake 14 km N of El Galpón, Argentina — October 6, 2021
2021-10-06 23:38:08 UTC (2021-10-06) · approx. 7:38 PM UTC-4 local
Felt by 6 people across nearby locations.
On October 6, 2021 at 23:38 UTC, a magnitude 5.0 shallow crustal earthquake struck 14 km N of El Galpón, Argentina, at a depth of 10.0 km and coordinates -25.2480°, -64.6292°.
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 6 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
-64.6292°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 5.0 earthquake near El Galpón, Argentina?
The magnitude 5.0 earthquake that struck 14 km N of El Galpón, Argentina on October 6, 2021 at 23:38 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 -25.2480°, -64.6292°, which is 14 km N of El Galpón, 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: us6000fsh2). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, October 6, 2021). M5.0 Earthquake 14 km N of El Galpón, Argentina — October 6, 2021. Retrieved December 22, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000fsh2/