Earthquakes in Argentina — October 2026
1 earthquakes were recorded in Argentina during October 2026, an average of 0.0 per day.
1 reached magnitude 4 or above and 0 reached magnitude 5 or above. The average focal depth was 196 km.
The month's largest event in Argentina was a magnitude 4.3 earthquake near San Antonio de los Cobres, Argentina on 11 October 2026 at 21:33 UTC. A magnitude 4.3 earthquake radiates roughly 43 tons of TNT equivalent in seismic energy.
That is below the Argentina monthly average of 17 events over the period we cover — a comparatively quiet month, and down from the 11 recorded the previous month.
0% of events here are shallow (under 70 km), 100% intermediate (70–300 km) and 0% deep-focus (over 300 km). A substantial share of intermediate-depth events points to a subducting slab beneath the region rather than purely crustal faulting.
By band, the catalogue holds 1 in the magnitude 4 range.
That is 94% below the 17 events Argentina averages per month across the 23 months on record.
Largest earthquakes in Argentina, October 2026
1 event listed below, newest first. Times are UTC. Click any column header to re-sort.
| Time (UTC) | Mag | Location | Depth (km) | Country | Details |
|---|---|---|---|---|---|
| 4.3 | San Antonio de los Cobres, Argentina | 195.6 | Argentina | View details View |
Frequently asked questions
How many earthquakes hit Argentina in October 2026?
1 earthquakes were recorded in Argentina during October 2026, of which 1 were magnitude 4 or above.
What was the biggest earthquake in Argentina in October 2026?
A magnitude 4.3 event near San Antonio de los Cobres, Argentina on 11 October 2026.
Other months in Argentina
Magnitudes for October 2026 reflect the current USGS review status and may have been revised since first publication. See our guides on the magnitude scale, focal depth and why earthquakes cluster.