EAS stands for Emergency Alert System, the broadcast warning format known for its piercing attention tones in the United States, with Mexico using its own seismic alert broadcasts for earthquakes. Short clips of these alarms spread online through meme edits and soundboards, where the official tone is reused out of context for comic panic. The Mexico version became a recognizable variant alongside other alert memes like the social credit siren, shared because viewers instantly understand the joke without any dialogue or explanation needed.