General reminder from the Government on Emergency Alert Test This Weekend
People across the UK are being urged not to panic when their phones buzz and blare this Sunday afternoon.
At exactly 3pm on 7 September, a Government Emergency Alert test will be carried out nationwide.
Siren-like noise will sound for around 10 seconds on smartphones and tablets, even if the devices are in silent mode
A clear message will be displayed confirming that no action is needed, it’s just an emergency test.
The Government explained that the system “serves a crucial purpose in keeping the public safe”.
The designed purpose of the UK’s Emergency Alerts system is to warn the public of life-threatening situations, like flooding, wildfire, earthquake, and other major situations. In such scenarios, the alerts would be deployed.
Officials say testing is essential to ensure the technology works effectively and reaches as many people as possible.
SAVE THE DATE
On Sunday 7th September, we will be testing Emergency Alerts on mobile phones across the UK.
Find out more: https://t.co/ZFiC6vTApF pic.twitter.com/ET9vxWAQ43
— Cabinet Office (@cabinetofficeuk) September 1, 2025
Some welcome the move as an important safety net. Others worry the sudden blast could startle vulnerable individuals, including the elderly or those with certain health conditions.
Ministers, however, stress the importance of familiarising people with the sound now, so that in a real crisis, no time is wasted.
- The alert will sound on most modern mobile devices.
- It will override silent and ‘do not disturb’ settings.
- The alert stops automatically after 10 seconds
Though only a test, the exercise has prompted widespread conversation online. The unusual noise is expected to catch many off guard, but officials are confident it will raise awareness.
The Gov.uk insists the system is not for surveillance, but purely for public protection in times of danger.
With extreme weather events and unexpected crises becoming more common, the Government Emergency Alert system is being positioned as a vital line of defence.
