4.1

M4.1 Earthquake 26 km W of San Jose De Sisa, PeruAugust 5, 2026

2026-08-05 03:40:42 UTC (19 hours ago) · approx. 10:40 PM UTC-5 local

MagnitudeM4.1(mb)
Time03:40 UTC10:40 PM UTC-5
Depth10.0 kmshallow crustal
Coordinates-6.646°, -76.930°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 5, 2026 at 03:40 UTC, a magnitude 4.1 shallow crustal earthquake struck 26 km W of San Jose De Sisa, Peru, at a depth of 10.0 km and coordinates -6.6463°, -76.9303°.

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 -6.65°, -76.93°

Earthquake Details

Magnitude
4.1 mb
Depth
10.0 km
shallow crustal
Location
-6.6463°N
-76.9303°E

Technical Information

Event ID
us6000ti6l
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
16
Azimuthal Gap
135.0°
Min Station Distance
4.386°
RMS Residual
0.96 sec
Last Updated
2026-08-05 21:41:05 UTC

Common Questions

How strong was the magnitude 4.1 earthquake near San Jose De Sisa, Peru?

The magnitude 4.1 earthquake that struck 26 km W of San Jose De Sisa, Peru on August 5, 2026 at 03:40 UTC had a depth of 10.0 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: us6000ti6l). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 5, 2026). M4.1 Earthquake 26 km W of San Jose De Sisa, PeruAugust 5, 2026. Retrieved August 5, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000ti6l/