4.3

M4.3 Earthquake 71 km SE of Apolinario Saravia, ArgentinaNovember 11, 2025

2025-11-11 15:00:04 UTC (2025-11-11) · approx. 11:00 AM UTC-4 local

MagnitudeM4.3(mb)
Time15:00 UTC11:00 AM UTC-4
Depth574.3 kmdeep-focus
Coordinates-24.847°, -63.449°
Felt byNo felt reports
Status✓ Reviewed by USGS

On November 11, 2025 at 15:00 UTC, a magnitude 4.3 deep-focus earthquake struck 71 km SE of Apolinario Saravia, Argentina, at a depth of 574.3 km and coordinates -24.8468°, -63.4487°.

Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -24.85°, -63.45°

Earthquake Details

Magnitude
4.3 mb
Depth
574.3 km
deep-focus
Location
-24.8468°N
-63.4487°E

Technical Information

Event ID
us6000rmrw
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
106
Azimuthal Gap
31.0°
Min Station Distance
4.722°
RMS Residual
0.78 sec
Last Updated
2026-01-29 22:05:25 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Apolinario Saravia, Argentina?

The magnitude 4.3 earthquake that struck 71 km SE of Apolinario Saravia, Argentina on November 11, 2025 at 15:00 UTC had a depth of 574.3 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 4.3 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: us6000rmrw). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, November 11, 2025). M4.3 Earthquake 71 km SE of Apolinario Saravia, ArgentinaNovember 11, 2025. Retrieved May 25, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rmrw/