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Re:Twitter alerted employees all office buildings closed and... by wcoenen on Friday November 18, 2022 @04:25AM (#33652308)
That's pretty much the use case of the ShakeAlert system which can provide notice for earth quakes a few seconds in advance.

https://mil.wa.gov/asset/61f184c815ef0

Re:Twitter alerted employees all office buildings closed and... by ben_w on Friday November 18, 2022 @04:47AM (#33652502)
Thanks, interesting.

Earthquakes are so far outside of my life experience that I'd completely forgotten about them.

https://en.wikipedia.org/wiki/ShakeAlert