suojahälytys
Suojahälytys, meaning "shelter alarm" in Finnish, is a public warning system used in Finland. It is a specific type of siren signal intended to alert the public to imminent danger that requires immediate action to seek shelter. Unlike other siren signals, the suojahälytys is not a test and requires the population to take protective measures.
The suojahälytys signal consists of a continuous, one-minute-long siren sound. Upon hearing this alarm, people should
The system is managed by the Finnish Ministry of the Interior and is tested periodically. When a