From around 11:00 am on August 28 (Wednesday), in order to confirm the normal activation of J-Alert, a test broadcast conducted by the country all over the country will flow through the District Disaster Prevention Administrative Radio. After the chime sound, the broadcasts “This is a J Alert test” (repeated 3 times) and “This is disaster prevention Katsushika” are broadcast. J Alert is a system that immediately notifies the residents of emergency information such as earthquakes and tsunamis from the country.
http://www.city.katsushika.lg.jp/kurashi/1000063/1004032/1004795/1020044.html
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