- Yokohama-shi Top Page
- Isogo Ward Top Page
- Disaster Prevention and anti-crime program
- Disaster Prevention and Disasters
- Others
- Disaster Prevention Speaker
Here's the text.
Disaster Prevention Speaker
Twenty disaster prevention speakers (including tsunami warning systems) are installed in Isogo Ward. Please understand that the sound may be difficult to hear depending on the surrounding environment and weather conditions. When giving information to citizens, we use various means on a daily basis. Especially in an emergency, it is assumed that citizens are in various environments (indoor and outdoor, high places / basements, quiet places, lively places, etc.), including disaster prevention speakers, TVs, smartphones, disaster prevention information E-mail, etc. We will tell you by combining various means.
Last update date April 13, 2023
Installation of Disaster Prevention Speakers in Isogo Ward
Isogo Ward Installation Status
※In addition to the above speakers, school speakers are installed at three locations in the ward (Negishi Naka, Isoko Elementary School, Morihigashi Elementary School).
About disaster prevention speaker and tsunami warning transmission system
After the Great East Japan Earthquake, tsunami warning transmission system was installed around the coast as a measure against the tsunami since 2013. Since then, "Disaster Prevention Speakers" have been installed in inland areas as an expansion of information transmission means.
The basic structure and operation of the disaster prevention speaker and the tsunami warning transmission system have some differences in power supply and functions, but the basic structure and operation are the same. All broadcasts of speakers installed in Isogo Ward are the same.
Currently, the tsunami warning transmission system is organized and operated as a "disaster prevention speaker".
Tsunami warning transmission system
Please refer to the link below for details on the "installation location", "mechanism", "system image", and "broadcast audio" of the tsunami warning transmission system.
Test sound of disaster prevention speakers
Isogo Ward conducts test broadcasts of disaster prevention speakers (including tsunami warning transmission systems) as follows:
Depending on the weather and surrounding environment, the range and hearing will vary.
[Examination Broadcast]
Date and time: From 10:00 a.m. on the second Monday of every month (or the next day if it is a holiday)
For inquiries to this page
Isogo Ward General Affairs Department General Affairs Division Risk Management Subdivision
Phone: 750-2312
Phone: 750-2312
Fax: 750-2530
Email address: is-bousai@city.yokohama.jp
Page ID: 835-110-683
