4.5

M4.5 Earthquake 111 km W of San Antonio de los Cobres, ArgentinaMay 2, 2026

2026-05-02 03:57:00 UTC (1 hour ago) · approx. 11:57 PM UTC-4 local

MagnitudeM4.5(mb)
Time03:57 UTC11:57 PM UTC-4
Depth211.4 kmintermediate depth
Coordinates-24.329°, -67.410°
Felt byNo felt reports
Status✓ Reviewed by USGS

On May 2, 2026 at 03:57 UTC, a magnitude 4.5 intermediate depth earthquake struck 111 km W of San Antonio de los Cobres, Argentina, at a depth of 211.4 km and coordinates -24.3288°, -67.4096°. This earthquake was detected by 26 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -24.33°, -67.41°

Earthquake Details

Magnitude
4.5 mb
Depth
211.4 km
intermediate depth
Location
-24.3288°N
-67.4096°E

Technical Information

Event ID
us7000shpb
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
26
Azimuthal Gap
77.0°
Min Station Distance
1.541°
RMS Residual
0.35 sec
Last Updated
2026-05-02 04:36:21 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near San Antonio de los Cobres, Argentina?

The magnitude 4.5 earthquake that struck 111 km W of San Antonio de los Cobres, Argentina on May 2, 2026 at 03:57 UTC had a depth of 211.4 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -24.3288°, -67.4096°, which is 111 km W of San Antonio de los Cobres, Argentina.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 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: us7000shpb). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, May 2, 2026). M4.5 Earthquake 111 km W of San Antonio de los Cobres, ArgentinaMay 2, 2026. Retrieved May 2, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000shpb/