health
These loud alerts use a cell-broadcast system to push safety warnings — earthquakes, flooding, heat waves, wildfires, missing persons — instantly to every phone in the affected area, bypassing normal notification settings so people don't miss urgent information. The abrupt, blaring tone is intentional, designed to grab attention even if your phone is silenced for other apps.
It's easy to mistake the sudden noise for spam or a billing notice, but treating it that way risks missing genuinely important safety information. Unlike promotional texts, these alerts come from government disaster-management authorities, not marketers or carriers.
You can usually adjust the alert language, and in some cases sensitivity, in your phone's settings — worth doing early so you're not caught off guard the first time it sounds.
health
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