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- About conduct of J alert (national instantaneous alarm system) transmission test broadcast from disaster prevention speaker in 2024
Here's the text.
About conduct of J alert (national instantaneous alarm system) transmission test broadcast from disaster prevention speaker in 2024
In preparation for disasters such as earthquakes and tsunami, we will conduct J Alert (National Instant Warning System) information transmission tests from disaster prevention speakers. J Alert is a system that instantly transmits emergency information such as Earthquake Early Warning, Tsunami Information, and armed attacks from the country through satellites.
Last Updated October 30, 2024
Date and time of implementation
[Test broadcast of J Alert]
1st Wednesday, May 22, 2024 around 11:00 am
The second time Wednesday, August 28, 2024 around 11:00 am [Canceled]
※Due to the impact of Typhoon No. 10, it was canceled nationwide.
The third time Wednesday, November 20, 2024 around 11:00 am
4th Wednesday, February 12, 2025 around 11:00 am
When we cancel test broadcast by disaster, we will tell on homepages of Yokohama-shi disaster prevention speaker.
Speaker installation location in the ward
1.Disaster Prevention Speaker installed in City of Yokohama, General Affairs Bureau
Iijima Elementary School / Kasama Elementary School / Kosugaya Elementary School / Sakae Ward Office / Sakurai Elementary School / Shodo Elementary School / Katsuradainaka School / Buried Cultural Properties Center (former Noshichiri Elementary School)
Kamigo Elementary School / Konda Elementary School / Koyamadai Elementary School
2.Speaker for flood control installed in Sakae Ward
Nagaodai Neighborhood Hall / Kasama-dori Town Neighborhood Associations Hall / Iijima Town Hall / Iijima Overpass / Taya District Orei Shrine / Naganuma Town Third Park / Kanaimachi Neighborhood Hall
Broadcast contents
[Test broadcast of J Alert]
♪Ping Pong Pong Pong (up 4 sound chime)
"This is a test for J Alerts." (Repeated 3 times)
♪Ping Pong Pong Pong (down 4 sound chime)
Reference Materials
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Inquiries to this page
Sakae Ward General Affairs Department General Affairs Division
Telephone: 045-894-8312
Telephone: 045-894-8312
Fax: 045-895-2260
Email address: sa-bosai@city.yokohama.jp
Page ID: 733-458-771