The UK Government has confirmed that the next nationwide emergency alert test will take place on Saturday, September 7. As part of ongoing efforts to improve the country’s public safety warning system, a loud, siren-like sound will be sent to mobile phones across the UK for around 10 seconds.
Millions of devices — including most smartphones and some tablets — will receive the alert. A message will appear on screens, making it clear that the alert is just a test and no action is required.
What to Expect:
- Date: Saturday, September 7
- Time: 3pm
- Duration: Approximately 10 seconds
- Message: A test alert will appear with sound and vibration
- Devices Affected: Most 4G and 5G smartphones
The alert will make a loud sound even if the phone is on silent or do-not-disturb mode. Users can dismiss the alert by swiping it away once the message appears.
Why Is This Happening?
The Emergency Alert system was launched in 2023 to warn the public about major threats such as flooding, wildfires, or terrorist incidents. Similar systems are already in use in countries like the United States and Japan.
These occasional tests are essential to ensure the alert system works correctly and to help the public recognize real alerts in the future.
Privacy and Safety:
The emergency alerts do not collect any personal data, track users, or access location services. They simply use mobile networks to broadcast messages to compatible devices.
While people can opt out of receiving alerts via their phone settings, the government advises keeping them enabled to stay informed during emergencies.
Important Reminder:
For individuals in vulnerable situations — such as survivors of domestic abuse with hidden phones — it’s recommended to disable emergency alerts or turn off those devices before the test to avoid any unintended consequences.
