M4.3 Earthquake 65 km W of Abra Pampa, Argentina — June 18, 2025
2025-06-18 22:45:16 UTC (2025-06-18) · approx. 6:45 PM UTC-4 local
On June 18, 2025 at 22:45 UTC, a magnitude 4.3 intermediate depth earthquake struck 65 km W of Abra Pampa, Argentina, at a depth of 245.5 km and coordinates -22.7481°, -66.3292°.
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-66.3292°E
Technical Information
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Common Questions
How strong was the magnitude 4.3 earthquake near Abra Pampa, Argentina?
The magnitude 4.3 earthquake that struck 65 km W of Abra Pampa, Argentina on June 18, 2025 at 22:45 UTC had a depth of 245.5 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 4.3 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000ql4b). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, June 18, 2025). M4.3 Earthquake 65 km W of Abra Pampa, Argentina — June 18, 2025. Retrieved September 2, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000ql4b/