Observed earthquake
38 km NE of Chilecito, 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 |
|---|---|---|---|---|---|---|
| EMSCEuropean-Mediterranean Seismological Centre | M4.4 mb | 130 km | 2026-10-13 03:04:10 UTC | 28.92°S, 67.15°W | Not stated | 20261013_0000070 ↗ |
| USGSUnited States Geological Survey | M4.4 mb | 128 km | 2026-10-13 03:04:11 UTC | 28.89°S, 67.25°W | Reviewed by an analyst28 stations | us6000u1y6 ↗ |
| GEOFONGFZ Helmholtz Centre for Geosciences | M4.4 mb | 170 km | 2026-10-13 03:04:10 UTC | 28.89°S, 67.29°W | Not stated | gfz2026uayl ↗ |
Source: Earthquake data from the European-Mediterranean Seismological Centre (EMSC) via SeismicPortal. · Retrieved: 2026-10-13 03:16:51 UTC
Source: Earthquake data courtesy of the U.S. Geological Survey. · Retrieved: 2026-10-13 04:07:42 UTC · grouped with match confidence 98%
Source: Earthquake solutions from the GEOFON programme, GFZ Helmholtz Centre for Geosciences. · Retrieved: 2026-10-13 07:00:29 UTC · grouped with match confidence 98%
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.