Weird & Interesting science, take 2

[classicdrogn]

Early earthquake warning system launched in Quebec, eastern Ontario

"Early" as in "the time difference between when the P wave and the S wave arrive", so if one is very, very lucky, maybe an entire minute before the ground starts shaking.

Well, that's enough of a difference that people who live somewhere earthquake-prone can hear and process a warning signal, cutting out a few seconds of surprise and letting them get onto stable footing, or away from items that might fall or collapse. Small things sure, but ones that can count for a lot in an emergency situation.