4.1

M4.1 Earthquake 108 km SSW of Uyuni, BoliviaAugust 15, 2021

2021-08-15 23:32:19 UTC (2021-08-15) · approx. 7:32 PM UTC-4 local

MagnitudeM4.1(mb)
Time23:32 UTC7:32 PM UTC-4
Depth191.7 kmintermediate depth
Coordinates-21.388°, -67.171°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 15, 2021 at 23:32 UTC, a magnitude 4.1 intermediate depth earthquake struck 108 km SSW of Uyuni, Bolivia, at a depth of 191.7 km and coordinates -21.3879°, -67.1706°.

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.

Map showing earthquake epicenter at -21.39°, -67.17°

Earthquake Details

Magnitude
4.1 mb
Depth
191.7 km
intermediate depth
Location
-21.3879°N
-67.1706°E

Technical Information

Event ID
us6000f6rk
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Azimuthal Gap
59.0°
Min Station Distance
2.188°
RMS Residual
0.62 sec
Last Updated
2021-10-29 14:46:19 UTC

Common Questions

How strong was the magnitude 4.1 earthquake near Uyuni, Bolivia?

The magnitude 4.1 earthquake that struck 108 km SSW of Uyuni, Bolivia on August 15, 2021 at 23:32 UTC had a depth of 191.7 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.

Understanding This Data

Magnitude 4.1 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000f6rk). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, August 15, 2021). M4.1 Earthquake 108 km SSW of Uyuni, BoliviaAugust 15, 2021. Retrieved October 29, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000f6rk/