Earthquake Early Warning (Japan)

External audio
Earthquake Early Warning alarm from NHK by ja:伊福部達
Earthquake Early Warning from the Real-time Earthquake Information Center

In Japan, the Earthquake Early Warning (EEW) (緊急地震速報, Kinkyū Jishin Sokuhō) is an alert that is issued when an earthquake is detected by multiple seismometers. These warnings are primarily issued by the Japan Meteorological Agency (JMA), with guidance on how to react to them.

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