In the event of a large disastrous event such as an earthquake or a typhoon, information about the emergency will be conveyed through the city's homepage and cable TV network, as well as to disaster prevention speakers which are installed in 119 places around the city, particularly at fire stations and parks.
Information about the emergency like where to evacuate to, what areas are recommended for evacuation, and traffic information will be sent via mobile phone e-mail to people who have registered for the service. (This is a Japanese language service)
When a disaster such as a typhoon or an earthquake happens, the Japan Meteorological Agency and the Takamatsu Regional Meteorological Agency send the information to the media (ie. television and radio), as well as to the Kagawa prefectural office, the Takamatsu police, and the Takamatsu Civil Engineering Office.
These places contact city hall and the Takamatsu Fire Department, which also keep in touch with the media. Then, city hall makes broadcasts over the disaster prevention speakers, sends out emails about the disaster, puts information on the city's homepage, enlists community help, and deploys public information vehicles.