Observed earthquake
61 km WNW of San Antonio de los Cobres, Argentina
Recent observationReported by 3 agencies. Every solution below is that agency's own measurement, stored unaltered.
Agency solutions
The same earthquake as measured independently by each agency. Values are never averaged or rewritten.
| Agency | Magnitude | Depth | Origin time | Epicentre | Review status | Source record |
|---|---|---|---|---|---|---|
| USGSUnited States Geological Survey | M4.3 mb | 196 km | 2026-10-11 21:33:08 UTC | 23.96°S, 66.85°W | Reviewed by an analyst20 stations | us6000u1mi ↗ |
| EMSCEuropean-Mediterranean Seismological Centre | M4.3 mb | 192 km | 2026-10-11 21:33:07 UTC | 24.02°S, 66.88°W | Not stated | 20261011_0000342 ↗ |
| GEOFONGFZ Helmholtz Centre for Geosciences | M4.2 mb | 200 km | 2026-10-11 21:33:07 UTC | 23.99°S, 66.94°W | Not stated | gfz2026tysa ↗ |
Source: Earthquake data courtesy of the U.S. Geological Survey. · Retrieved: 2026-10-11 22:55:48 UTC · grouped with match confidence 75%
Source: Earthquake data from the European-Mediterranean Seismological Centre (EMSC) via SeismicPortal. · Retrieved: 2026-10-11 21:39:07 UTC
Source: Earthquake solutions from the GEOFON programme, GFZ Helmholtz Centre for Geosciences. · Retrieved: 2026-10-12 05:24:31 UTC · grouped with match confidence 95%
Why the agencies differ
Differences of a few tenths of a magnitude unit and tens of kilometres are normal and expected. Each agency uses a different set of seismic stations, a different velocity model for the Earth's interior, and sometimes a different magnitude scale altogether. None of them is “wrong”; they are independent measurements of the same event.
Prakruti groups solutions only when they agree closely in both time and location, and shows the preferred solution — favouring an analyst-reviewed moment magnitude where one exists — while keeping every other solution visible above.