Nationwide J-Alert test at 11 a.m. on Wednesday, Nov 11: test broadcasts on Kawasaki’s outdoor speakers and disaster radios
Published
Translated from Japanese. If anything differs, the Japanese version is correct.
Key points 30-second read
- At 11 a.m. on Wednesday, Nov 11, 2026, there will be a nationwide test of "J-Alert," the system that sends emergency warnings about missiles, earthquakes and more. Kawasaki City will take part.
- Outdoor speakers and disaster radios in the city will say "This is a J-Alert test" three times. Test notices will also go to the Kawasaki disaster prevention app and Mail News Kawasaki.
- The test may be postponed or canceled if a disaster occurs that day. The backup date is Wednesday, Nov 25.
Image: Kawasaki City official website
Nationwide J-Alert test at 11 a.m. on Nov 11
At 11 a.m. on Wednesday, Nov 11, 2026, Kawasaki City will take part in a nationwide test of the "J-Alert" national early warning system. The city announced this on Oct 15.
J-Alert receives urgent information from the national government when there is no time to spare, such as earthquakes, tsunamis or missile launches, and passes it on to residents immediately through the city’s disaster radio system and other channels. The test is held across Japan at the same time about four times a year.
Test broadcasts on outdoor speakers and disaster email
On the day, Kawasaki City will:
- Broadcast on outdoor speakers in the city (the disaster radio system) and on disaster radios
- Send a test email to people registered for civil protection information on "Mail News Kawasaki"
- Send a push notification through the "Kawasaki disaster prevention app"
- Check that the city’s J-Alert receiver gets the test message
Not a real alert: no action needed
No. It is not a real warning, so stay calm if you hear it.
It is a good chance, though, to check whether you can hear the outdoor speakers at home or at work, and whether app notifications reach you. If a disaster occurs that day, the test may be postponed or canceled. The backup date is Wednesday, Nov 25, at 11 a.m.
The next test is planned for 11 a.m. on Wednesday, Feb 3, 2027 (backup date: Wednesday, Feb 17).
Contacts
Contact the Crisis Management Department, Crisis Management Headquarters, Kawasaki City (phone 044-200-1906).
Sources
- 報道発表資料（PDF）（川崎市 危機管理本部）
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