Google is expanding its Android Earthquake Alerts System from 98 to more than 200 regions worldwide, using smartphone sensors to detect early earthquake activity and warn users before potentially dangerous shaking begins. The update also enhances the system's "Be Ready" alerts with estimated earthquake magnitudes, epicenter information, maps showing affected areas, and additional safety guidance. From a Google blog post: Be Aware: A straightforward alert for estimated light shaking, letting you know an earthquake has been detected nearby. Be Ready: A detailed alert for stronger shaking, alerting you to prepare to take action. Take Action: A full-screen alert for moderate to heavy shaking, giving you immediate advice on how to stay safe. We've built-out our Be Ready alert with new helpful guidance. In the coming months, you'll see a map with a radius of where we've detected shaking, estimated earthquake magnitude, action you can take, and a button to learn more about the earthquake as information comes in.

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