Earthquakes in Argentina — Page 4

Seismic activity in Argentina is moderate by global standards, with 9 events recorded in the past 30 days, and 46 of the events on record reached magnitude 5 or above — the level at which damage becomes a genuine concern for vulnerable construction.

383 earthquakes have been recorded in Argentina in our catalogue, 9 of them in the past 30 days.

The average magnitude is 4.6 and the average focal depth 144 km. 382 events reached magnitude 4 or above and 46 reached magnitude 5 or above.

The strongest earthquake recorded in Argentina in this period was a magnitude 7.5 event near Ushuaia, Argentina on 02 May 2025, at a depth of 48 km. A magnitude 7.5 earthquake radiates roughly 2.7 million tons of TNT equivalent in seismic energy.

Locations recording the most events include San Antonio de los Cobres (132), Ushuaia (81), Abra Pampa (24), Calingasta (22), El Aguilar (13).

28% of events here are shallow (under 70 km), 69% intermediate (70–300 km) and 2% 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.

The deepest event on record here was a magnitude 5.6 earthquake at 588 km beneath Añatuya, Argentina on 27 December 2025.

By band, the catalogue holds 1 in the magnitude 3 range, 336 in the magnitude 4 range, 42 in the magnitude 5 range, 2 in the magnitude 6 range, 2 in the magnitude 7 range.

The busiest single day was 02 May 2025, with 33 recorded events.

3 of these events carry a USGS link to NOAA tsunami information. That link flag does not mean a tsunami occurred or that a warning was issued.