M4.8 Earthquake 134 km NW of San José de Jáchal, Argentina — March 16, 2025
2025-03-16 21:50:23 UTC (2025-03-16) · approx. 4:50 PM UTC-5 local
Felt by 1 person across nearby locations.
On March 16, 2025 at 21:50 UTC, a magnitude 4.8 intermediate depth earthquake struck 134 km NW of San José de Jáchal, Argentina, at a depth of 104.6 km and coordinates -29.2657°, -69.5687°. This earthquake was detected by 120 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 355, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.8 releases seismic energy equivalent to roughly 239 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.2 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 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
-69.5687°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.8 earthquake near San José de Jáchal, Argentina?
The magnitude 4.8 earthquake that struck 134 km NW of San José de Jáchal, Argentina on March 16, 2025 at 21:50 UTC had a depth of 104.6 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -29.2657°, -69.5687°, which is 134 km NW of San José de Jáchal, Argentina.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.8 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000pz83). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, March 16, 2025). M4.8 Earthquake 134 km NW of San José de Jáchal, Argentina — March 16, 2025. Retrieved May 17, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000pz83/