Smartphone users may have received the alert as a notice on their phones. Once a user clicked in to the story, it became apparent this was only a test.
The alert was issued by NOAA, and was sent to users on the Gulf Coast and East Coast.
The National Weather Service issued the following statement: "The National Tsunami Warning Center of the National Weather Service issued a routine test message at approximately 8:30 am ET this morning. The test message was released by at least one private sector company as an official Tsunami Warning, resulting in widespread reports of tsunami warnings received via phones and other media across the East Coast, Gulf of Mexico, and the Caribbean. We're currently looking into why the test message was communicated as an actual tsunami warning, and will provide more information as soon as we have it."
Officials are being notified that there is no threat.
This Tsunami Warning is just a TEST.— Travis Herzog (@TravisABC13) February 6, 2018
We’re okay, Houston. pic.twitter.com/PyPK5WNZFB
The National Weather Service Tsunami Warning this morning was a TEST. No Tsunami warning is in effect for the East Coast of the U.S.— AccuWeather (@accuweather) February 6, 2018