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  2. Emergency override system - Wikipedia

    en.wikipedia.org/wiki/Emergency_override_system

    The Local Access Alert (also known as Local Access System or Emergency Override System) is a system designed to warn radio stations, television stations, cable television broadcast feeds or satellite signals of impending dangers such as severe weather and other civil emergencies.

  3. Emergency Alert System - Wikipedia

    en.wikipedia.org/wiki/Emergency_Alert_System

    Emergency Broadcast System, Local Access Alert The Emergency Alert System ( EAS ) is a national warning system in the United States designed to allow authorized officials to broadcast emergency alerts and warning messages to the public via cable , satellite and broadcast television and AM , FM and satellite radio.

  4. California earthquake warning app is now available on more ...

    www.aol.com/news/california-earthquake-warning...

    California's free earthquake early warning app, MyShake, is now available for Mac computers and Chromebooks — a major expansion of access for the warning system.

  5. Emergency population warning - Wikipedia

    en.wikipedia.org/wiki/Emergency_population_warning

    Cable television systems in the United States also have emergency warnings at the time, known as Local Access Alert or Emergency Override System. A notable example of an emergency alert being issued in the United States was a nationwide alert test, known as the National Periodic Test, which last occurred on October 4, 2023.

  6. Why did I get an earthquake alert this morning? How ... - AOL

    www.aol.com/why-did-earthquake-alert-morning...

    A ShakeAlert message was sent to cellphone users in Sacramento County and the surrounding area just before 9:30 a.m. on Wednesday, July 18, 2023, for a magnitude-4.1 earthquake near Isleton.

  7. Faster alerts for California megaquakes: Early-warning system ...

    www.aol.com/news/faster-alerts-california-mega...

    An upgrade to California's earthquake early-warning system using GPS data will allow more timely alerts about shaking and better estimate the magnitude of a megaquake.

  8. Civil emergency message - Wikipedia

    en.wikipedia.org/wiki/Civil_Emergency_Message

    A civil emergency message (SAME code: CEM) is a warning issued through the Emergency Alert System (EAS) in the United States to warn the public of a significant in-progress or imminent threat or danger to public safety. It is typically issued by a local or state authority and is relayed by the National Weather Service.

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