Overview
- The nationwide drill, held Wednesday at 11:00 a.m., sounded public sirens in high‑risk states and pushed a Cell Broadcast message that flagged it as a simulation.
- CNPC reported more than 37 million participants and 167,810 registered buildings across 2,421 municipalities in all 32 states.
- Authorities said over 87 million mobile devices received the alert with effectiveness above 95 percent, and about 23,000 public loudspeakers were activated.
- The exercise followed a real 5.6 quake two days earlier that missed phone alerts during brief platform maintenance, and agencies now plan post‑drill reviews to verify performance and fix gaps.
- The scenario modeled a magnitude‑8.2 quake in Guerrero’s seismic gap, and the event doubled as a mass evacuation practice during SINAPROC’s 40th year, reinforcing simple steps people can use to exit buildings fast and safely.