Phones Warned Millions Before Venezuela Quakes

Google’s earthquake alert system, which uses data from Android phones with built-in accelerometers, successfully issued warnings in Venezuela during two powerful quakes. The system detected the earthquakes—magnitudes 7.2 and 7.5—within seconds of their onset, providing millions of people with seconds to minutes of advance notice. These alerts, sent via the Earthquake Alerts system in nearly 100 countries, aim to give individuals time to take protective actions before shaking begins.

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