ShakeAlert Earthquake Early Warning system offer an alert to everyone. It does not predict earthquakes but indicates that an earthquake has begun and shaking is imminent.
Sign up at: https://www.shakealert.org/
The Great Shakeout Earthquake Drills just occurred on October 20, 2022 at 10:20 a.m. to remind everyone that the “Drop, Cover, and Hold” drill is a recommended safety action during an earthquake. Most earthquake related injuries and deaths result from collapsing walls, flying glass, and falling objects caused by the ground shaking.