Overview
- Seismological agencies confirmed on Sunday that a series of small-to-moderate earthquakes were recorded across Peru, Argentina and Mexico between September 19 and 20, 2026.
- Peru's IGP logged the largest single event at magnitude 5.2 near Santa María de Nieva on September 19, and Argentina's INPRES recorded a magnitude 5.0 near Tucumán on September 20.
- Mexico's SSN reported numerous low‑to‑moderate events on September 20 in Veracruz, Chiapas, Oaxaca, Guerrero and Baja California Sur with depths ranging from about 5 km to nearly 200 km.
- Authorities and local media say no injuries or structural damage have been confirmed and they continue to urge people to follow official channels and basic preparedness steps.
- Seismologists explain that deeper hypocenters tend to spread weak shaking over a wider area while shallow quakes produce stronger local shaking, so depth was key to why these events caused little damage and will remain under monitoring.