M4.1 Earthquake 49 km ESE of Los Andes, Chile — April 9, 2025
2025-04-09 22:30:13 UTC (2025-04-09) · approx. 5:30 PM UTC-5 local
On April 9, 2025 at 22:30 UTC, a magnitude 4.1 intermediate depth earthquake struck 49 km ESE of Los Andes, Chile, at a depth of 113.0 km and coordinates -32.9600°, -70.0906°.
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
-70.0906°E
Technical Information
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Common Questions
How strong was the magnitude 4.1 earthquake near Los Andes, Chile?
The magnitude 4.1 earthquake that struck 49 km ESE of Los Andes, Chile on April 9, 2025 at 22:30 UTC had a depth of 113.0 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: us6000q50f). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, April 9, 2025). M4.1 Earthquake 49 km ESE of Los Andes, Chile — April 9, 2025. Retrieved June 14, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000q50f/