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How earthquake alerts work on Android - and how to make sure they're enabled on your phone
These potentially life-saving alerts from Google now cover the entire nation. Plus, Samsung just announced its own system.
For instance, during a magnitude 6.7 earthquake in the Philippines in November 2023, Google's system sent out the first alert just 18.3 seconds after the quake started, notifying nearly 2.5 million people. Beyond simply notifying you of the magnitude and timing, Samsung's version lets you preview alerts on demand, review a history of past warnings, set separate intensity thresholds for day and night, and quickly access nearby emergency shelters as well as your stored emergency contacts and medical information for first responders. Both Android's and Samsung's notifications aim to warn you before you feel shakes, giving you precious seconds to seek cover.
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