M4.6 Earthquake 79 km SW of Uyuni, Bolivia — May 28, 2025
2025-05-28 23:11:36 UTC (2025-05-28) · approx. 7:11 PM UTC-4 local
On May 28, 2025 at 23:11 UTC, a magnitude 4.6 intermediate depth earthquake struck 79 km SW of Uyuni, Bolivia, at a depth of 187.7 km and coordinates -20.9301°, -67.4047°. This earthquake was detected by 45 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 326, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-67.4047°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.6 earthquake near Uyuni, Bolivia?
The magnitude 4.6 earthquake that struck 79 km SW of Uyuni, Bolivia on May 28, 2025 at 23:11 UTC had a depth of 187.7 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -20.9301°, -67.4047°, which is 79 km SW of Uyuni, Bolivia.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000qgja). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, May 28, 2025). M4.6 Earthquake 79 km SW of Uyuni, Bolivia — May 28, 2025. Retrieved August 16, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000qgja/