4.1

M4.1 Earthquake 19 km S of Yacuiba, Bolivia — October 6, 2026

2026-10-06 15:57:24 UTC (2 hours ago) · approx. 11:57 AM UTC-4 local

MagnitudeM4.1(mb)
Time15:57 UTC≈ 11:57 AM UTC-4
Depth525.8 kmdeep-focus
Coordinates-22.196°, -63.686°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 6, 2026 at 15:57 UTC, a magnitude 4.1 deep-focus earthquake struck 19 km S of Yacuiba, Bolivia, at a depth of 525.8 km and coordinates -22.1960°, -63.6857°.

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 -22.20°, -63.69°

Earthquake Details

Magnitude
4.1 mb
Depth
525.8 km
deep-focus
Location
-22.1960°N
-63.6857°E

Technical Information

Event ID
us6000u0d2
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
48
Azimuthal Gap
47.0°
Min Station Distance
3.623°
RMS Residual
0.66 sec
Last Updated
2026-10-06 17:59:32 UTC

Common Questions

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

The magnitude 4.1 earthquake that struck 19 km S of Yacuiba, Bolivia on October 6, 2026 at 15:57 UTC had a depth of 525.8 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: us6000u0d2). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, October 6, 2026). M4.1 Earthquake 19 km S of Yacuiba, Bolivia — October 6, 2026. Retrieved October 6, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000u0d2/