M4.6 Earthquake 47 km NW of San José de Jáchal, Argentina — February 22, 2021
2021-02-22 23:14:20 UTC (2021-02-22) · approx. 6:14 PM UTC-5 local
Felt by 1 person across nearby locations.
On February 22, 2021 at 23:14 UTC, a magnitude 4.6 intermediate depth earthquake struck 47 km NW of San José de Jáchal, Argentina, at a depth of 114.2 km and coordinates -29.9994°, -69.1552°.
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — 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 1 citizen response 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
-69.1552°E
Technical Information
Common Questions
How strong was the magnitude 4.6 earthquake near San José de Jáchal, Argentina?
The magnitude 4.6 earthquake that struck 47 km NW of San José de Jáchal, Argentina on February 22, 2021 at 23:14 UTC had a depth of 114.2 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -29.9994°, -69.1552°, which is 47 km NW of San José de Jáchal, Argentina.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000dk9x). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, February 22, 2021). M4.6 Earthquake 47 km NW of San José de Jáchal, Argentina — February 22, 2021. Retrieved May 4, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000dk9x/