Overview
- At 7:19 a.m., President Claudia Sheinbaum led a half‑mast flag ceremony in Mexico City honoring victims of the 1985 and 2017 earthquakes.
- The Second National Seismic Drill simulated a magnitude 8.1 quake centered in Lázaro Cárdenas, Michoacán, with projected effects across 18 states.
- Authorities reported that the mass alert system reached more than 80 million cellphones, complemented by C5 loudspeakers, radio and television.
- SSPC chief Omar García Harfuch convened the National Emergency Committee and stated the government is ready to deploy resources nationwide.
- Local agencies logged organized evacuations, including in Querétaro, and managed unrelated incidents such as a Chedraui store fire that moved about 80 people to safety, while in Hermosillo a 17‑year‑old was charged and an adult boxer was arrested over an assault on two municipal police.