This clip is known online as the Zambia EAS alarm, but its exact original broadcast source is not reliably clear from the available metadata. In practice, it spreads as a generic emergency alert style sound for meme edits, parody warnings, and fake public announcements. Creators use it because the tone is instantly recognizable even without context, and its longer runtime gives room for text overlays, countdown jokes, or escalating visual gags before the punchline lands.