M4.8 Earthquake 96 km WNW of Vinchina, Argentina — March 18, 2025
2025-03-18 20:25:38 UTC (2025-03-18) · approx. 3:25 PM UTC-5 local
On March 18, 2025 at 20:25 UTC, a magnitude 4.8 intermediate depth earthquake struck 96 km WNW of Vinchina, Argentina, at a depth of 98.5 km and coordinates -28.4050°, -69.1048°. This earthquake was detected by 100 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 354, 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.
Earthquake Details
-69.1048°E
Technical Information
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Common Questions
How strong was the magnitude 4.8 earthquake near Vinchina, Argentina?
The magnitude 4.8 earthquake that struck 96 km WNW of Vinchina, Argentina on March 18, 2025 at 20:25 UTC had a depth of 98.5 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -28.4050°, -69.1048°, which is 96 km WNW of Vinchina, 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.
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Location
Authoritative source: USGS event page (event ID: us6000pzn1). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, March 18, 2025). M4.8 Earthquake 96 km WNW of Vinchina, Argentina — March 18, 2025. Retrieved May 17, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000pzn1/