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Android Earthquake Alert System (AEA)

Kumari Sonali

Android Earthquake Alert System (AEA):

Google and UC Berkeley’s Seismology Lab have released a new global performance report of the Android Earthquake Alert (AEA) system. The system issued successful early warnings in 98 countries.

Working:

  • Sensor Activation: Android phones sense initial P-waves using onboard accelerometers.
  • Crowdsourcing: Data is sent to Google servers and cross-verified with signals from nearby devices.
  • Real-time Processing: If confirmed, servers estimate epicentre, magnitude, and distance.
  • Alert Dispatch: Warning is sent to users before S-waves hit, allowing 10–60 seconds of preparation.

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