4.1

M4.1 Earthquake 8 km NNE of Quilpué, ChileJuly 27, 2026

2026-07-27 17:19:36 UTC (1 hour ago) · approx. 12:19 PM UTC-5 local

MagnitudeM4.1(mb)
Time17:19 UTC12:19 PM UTC-5
Depth59.2 kmshallow crustal
Coordinates-32.970°, -71.423°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 27, 2026 at 17:19 UTC, a magnitude 4.1 shallow crustal earthquake struck 8 km NNE of Quilpué, Chile, at a depth of 59.2 km and coordinates -32.9701°, -71.4228°.

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 -32.97°, -71.42°

Earthquake Details

Magnitude
4.1 mb
Depth
59.2 km
shallow crustal
Location
-32.9701°N
-71.4228°E

Technical Information

Event ID
us6000tg56
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
28
Azimuthal Gap
75.0°
Min Station Distance
0.196°
RMS Residual
0.50 sec
Last Updated
2026-07-27 17:54:57 UTC

Common Questions

How strong was the magnitude 4.1 earthquake near Quilpué, Chile?

The magnitude 4.1 earthquake that struck 8 km NNE of Quilpué, Chile on July 27, 2026 at 17:19 UTC had a depth of 59.2 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: us6000tg56). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, July 27, 2026). M4.1 Earthquake 8 km NNE of Quilpué, ChileJuly 27, 2026. Retrieved July 27, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tg56/