Overview
- Mexico’s seismic service reported the quake at 7:58 a.m. local time with an epicenter near San Marcos, Guerrero, at shallow depth and with strong perception across central and southern states.
- The seismic alert sounded in Mexico City, prompting evacuations, overflights and brief pauses in transport systems, and it interrupted President Claudia Sheinbaum’s morning conference.
- Cell-broadcast warnings from the presidential alert and SASMEX reached phones in covered regions, while authorities noted power outages in parts of Acapulco and some neighborhoods of the capital.
- Preliminary magnitude readings varied as analyses progressed, with SSN reporting 6.5 and some services noting early adjustments up to 6.6–6.8; monitoring for aftershocks remains active.
- SSN also logged smaller events in Sonora, Baja California and Oaxaca, and Peru’s IGP confirmed two moderate offshore quakes on Jan. 1 near Chilca (M4.2) and Nasca (M4.5) that were lightly felt without damage.