A new Twitter service has been launched that sends emergency messages from police, fire and civil defense. Along with the news and gossip available in real time, the service establishes a social function of the internet.
The range of the alarm is crucial to save the largest number of people in case of natural disasters. With Twitter Alert, government agencies can mobilize crowds in real time and save many lives.
Twitter Alert posts appear prominently, flagged with an “orange bell” beside them, so that everyone can differentiate from the normal flow of information. The service also includes SMS messages for those who register their mobile number. The service was used to alert people in Japan after the tsunami in 2011. Initially, the service is available in Japan, the United States, and South Korea, with its expansion planned.