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A comment on Tsunami warning ends for B.C. after large earthquake strikes off Alaska. Parent comment

Re:Tsunami warning ends for B.C. after large earthquake stri... by devscreen on Tuesday January 23, 2018 @12:17PM (#16215219)
How do amber alerts work? When I lived in SF I got SF-related alerts. I don't know enough about how they work - but it sounds like tech that could be re-used for major emergency alerts.
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Re:Tsunami warning ends for B.C. after large earthquake stri... by ghaff on Tuesday January 23, 2018 @02:16PM (#16216536)
As I should have realized, they're sent to all wireless phones in the area. On an iPhone at least both Amber and Emergency alerts are on by default but you can turn either of them off.
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