Google added earthquake detection to Android phones, using the accelerometers in millions of devices to sense shaking and send a warning seconds before tremors reach users. The alert sound became widely shared online as people recorded it during real earthquakes and posted the clips on social media, turning a safety feature into a recognisable audio cue. Like a Discord notification, it is short, urgent and instantly recognisable, which is why editors reuse it in news clips, reaction videos and memes to signal danger immediately.