The test message will simulate an emergency alert, beginning with the alert tone. The message will indicate that it is a test and does not require action from the public.

CLAIM: An emergency broadcast system test on Oct. 4 will send a signal to cell phones nationwide in order to activate nanoparticles such as graphene oxide that have been introduced into people’s ...

A Sept. 20 Instagram post (direct link, archive link) shows a video of a man urging people to turn off their cellphones during an upcoming test of the emergency broadcast system. “This test will be ...