M4.9 Earthquake 30 km WNW of Villazón, Bolivia — August 9, 2023
2023-08-09 07:53:26 UTC (2023-08-09) · approx. 3:53 AM UTC-4 local
On August 9, 2023 at 07:53 UTC, a magnitude 4.9 intermediate depth earthquake struck 30 km WNW of Villazón, Bolivia, at a depth of 255.2 km and coordinates -21.9772°, -65.8611°. This earthquake was detected by 98 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 369, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.

Earthquake Details
-65.8611°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.9 earthquake near Villazón, Bolivia?
The magnitude 4.9 earthquake that struck 30 km WNW of Villazón, Bolivia on August 9, 2023 at 07:53 UTC had a depth of 255.2 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -21.9772°, -65.8611°, which is 30 km WNW of Villazón, Bolivia.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000kytm). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, August 9, 2023). M4.9 Earthquake 30 km WNW of Villazón, Bolivia — August 9, 2023. Retrieved October 17, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000kytm/