Emergency Alert Test - Sunday, 7 September at 15:00
The government is testing the Emergency Alerts system on Sunday 7 September 2025 at 3:00pm. Compatible mobile phones and tablets will receive an alert, make a loud siren-like sound and vibrate. Individuals will not need to take any action.
The Emergency Alerts system is used to warn if there’s a danger to life nearby, including extreme weather. Regular testing ensures the system is functioning correctly, should it need to be used in a life-threatening emergency.
The national test of the Emergency Alerts system was announced on 7 July, alongside a new Resilience Action Plan to improve the way the government prepares for and responds to emergencies.
The message, which will be sent to all 4G and 5G phone networks in the UK, will make clear that this is a test and no further action is required.
The test will be the second of its kind and follows a government commitment to test the system regularly to make sure it works optimally and familiarise the public with the alerts.