The Cocos plate subducts beneath North America along the Middle America Trench, loading the Guerrero seismic gap and the Chiapas segment. Mexico City sits 300 km inland yet suffers disproportionate damage: the soft lakebed clay it is built on amplifies long-period shaking by up to fifty times, as the 1985 and 2017 disasters showed.
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Counts cover the seismic belts this platform monitors in Mexico, not its administrative borders. A monitored belt can reach across a border, and events there are listed with the country of their epicentre.
1 dedicated profiles · 30 Holocene volcanoes in total
The Cocos plate subducts beneath North America along the Middle America Trench, loading the Guerrero seismic gap and the Chiapas segment. Mexico City sits 300 km inland yet suffers disproportionate damage: the soft lakebed clay it is built on amplifies long-period shaking by up to fifty times, as the 1985 and 2017 disasters showed.
The emergency number in Mexico is 911, answered by Protección Civil. After strong shaking, keep the line free for those trapped or injured and check official channels for aftershock and tsunami advisories.
The national seismic authority is Servicio Sismológico Nacional, UNAM (SSN). EarthquakeLive cross-checks its bulletins against 18 international networks, so an event may appear here with a slightly different magnitude until the agencies converge on a final solution.