4.4

M4.4 Earthquake 88 km W of Illapel, ChileMay 3, 2026

2026-05-03 06:38:10 UTC (1 hour ago) · approx. 1:38 AM UTC-5 local

MagnitudeM4.4(mb)
Time06:38 UTC1:38 AM UTC-5
Depth9.9 kmshallow crustal
Coordinates-31.697°, -72.105°
Felt byNo felt reports
Status✓ Reviewed by USGS

On May 3, 2026 at 06:38 UTC, a magnitude 4.4 shallow crustal earthquake struck 88 km W of Illapel, Chile, at a depth of 9.9 km and coordinates -31.6974°, -72.1045°.

Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -31.70°, -72.10°

Earthquake Details

Magnitude
4.4 mb
Depth
9.9 km
shallow crustal
Location
-31.6974°N
-72.1045°E

Technical Information

Event ID
us7000shxa
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
30
Azimuthal Gap
136.0°
Min Station Distance
1.021°
RMS Residual
0.74 sec
Last Updated
2026-05-03 07:23:46 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Illapel, Chile?

The magnitude 4.4 earthquake that struck 88 km W of Illapel, Chile on May 3, 2026 at 06:38 UTC had a depth of 9.9 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 4.4 earthquakes can continue for several days and gradually diminish over time.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: us7000shxa). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, May 3, 2026). M4.4 Earthquake 88 km W of Illapel, ChileMay 3, 2026. Retrieved May 3, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000shxa/