Overview

• At 07:19 local time, President Claudia Sheinbaum led a half‑staff flag ceremony in Mexico City to honor victims of the 1985 and 2017 earthquakes.
• The drill is scheduled for 12:00 CST with a primary hypothesis of a magnitude 8.1 earthquake near Lázaro Cárdenas, Michoacán, while some states will simulate hurricane, tsunami or urban fire scenarios.
• Authorities expect about 80 million people to receive the cell‑broadcast test, which requires an updated smartphone on a mobile network and will sound even if the device is on silent without needing apps or internet.
• Federal agencies have released the test text and step‑by‑step setup guidance for Android and iOS, and they are offering a toll‑free support line at 079.
• Seismologists from UNAM and the SSN stress that the date’s recurrence is a coincidence and call for sustained, year‑round preparedness.