Cell phone users from the U.S. border with Canada south to the border with Mexico should receive a mobile alert from the early warning system when an earthquake is detected. Cell phone users from the U.S. border with Canada south to the border with Mexico should receive a mobile alert from the early...

https://www.npr.org/2021/05/05/993737331/entire-u-s-west-coast-now-covered-by-earthquake-early-warning-system

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