Just going to reiterrate and add to something I said on a previous post as a sort of PSA:
Caution isn't the same thing as fear but don't let these things concern you too much, fearmongering is how control is snatched by malevolent entities, and fear causes prolonged stress which negatively affects health, the worst may never happen and then you'll have worried yourself sick over nothing.
If these kind of things Emergency Alerts cause you undue distress, and you've survived this long without emergency elerts then you probably don't need them now, here is how to turn them off for your peace of mind if you need to.
www.theguardian.com/.../how-to-disable-uk-emergency-alerts-on-your-phone
I repeat: Fearmongering is how control is snatched by malevolent entities. Stirring paranoia in the general populace is an act of terrorism. Do not make me tap the sign.