M4.1 Earthquake 41 km SSE of Londres, Argentina — January 3, 2025
2025-01-03 20:51:43 UTC (2025-01-03) · approx. 4:51 PM UTC-4 local
On January 3, 2025 at 20:51 UTC, a magnitude 4.1 intermediate depth earthquake struck 41 km SSE of Londres, Argentina, at a depth of 222.4 km and coordinates -28.0469°, -66.9328°.
Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-66.9328°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.1 earthquake near Londres, Argentina?
The magnitude 4.1 earthquake that struck 41 km SSE of Londres, Argentina on January 3, 2025 at 20:51 UTC had a depth of 222.4 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.1 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000phq6). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, January 3, 2025). M4.1 Earthquake 41 km SSE of Londres, Argentina — January 3, 2025. Retrieved March 17, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000phq6/