What is the Earthquake Early Warning (or "緊急地震速報 (Kinkyu Jishin Sokuho)" in Japanese)?
The Earthquake Early Warning system provides advance announcement of the estimated seismic intensities and expected arrival time of principal motion. These estimations are based on prompt analysis of the focus and magnitude of the earthquake using wave form data observed by seismographs near the epicenter.
The Earthquake Early Warning is aimed at mitigating earthquake-related damage by allowing countermeasures such as promptly slowing down trains, controlling elevators to avoid danger and enabling people to quickly protect themselves in various environments such as factories, offices, houses and near cliffs.
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The Earthquake Early Warning system provides advance announcement
of the estimated seismic intensities and expected arrival time of principal motion.
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