Overview
- Argentina’s INPRES confirmed a magnitude 4.9 quake at about 8:15 a.m. local time offshore near Mar del Plata, shallow at roughly 9–10 km, felt in southern neighborhoods and nearby Miramar, with no tsunami risk or reported damage.
- Mexico’s SSN logged two early‑morning events on Feb. 19: magnitude 4.3 west of Huetamo, Michoacán (01:02), and magnitude 4.1 southwest of Mapastepec, Chiapas (04:45), both without alerts or reported impacts.
- Peru’s IGP reported a magnitude 4.1 quake on Feb. 18 north of Talara, Piura (intensity II–III) with no injuries or damage, followed by a magnitude 3.9 near Mala, Cañete just after midnight on Feb. 19 (intensity III).
- Mexico City and Estado de México conducted their first metropolitan drill of 2026 at 11:00 a.m., with 98.5% of loudspeakers operating, an average evacuation time of 1:52, and coordinated rescue exercises overseen by city authorities.
- Agencies emphasized routine monitoring and preparedness guidance, noting that Thursday’s Mexican events were too small to trigger the public alert and urging residents to rely on official seismic reports.