What's a good iOS app for receiving early warnings about earthquakes?

MyShake Earthquake Alerts is a useful app for getting early warnings about earthquakes. Developed by the University of California, Berkeley, the app leverages your smartphone's built-in sensors to detect seismic activity. By analyzing the data from numerous phones, MyShake can identify potential earthquakes and send out alerts to users in the affected area, often providing a few precious seconds or even minutes of warning before the shaking starts. This can be enough time to take cover, move to a safer location, or brace yourself for the impact. The app is especially helpful if you are not right on top of the epicenter. MyShake also contributes to earthquake research by collecting valuable data, making it a tool for both personal safety and scientific advancement. The app allows you to get the notification before the system notification through your cell phone service came out. It works!