A tsunami warning test has sent BoM app users into panic.

The Bureau of Meteorology (BoM) issued an apology on Wednesday after an error in testing its new tsunami early-warning system caused confusion and concern among users of its weather app and social media channels. 

Test warnings were mistakenly sent to the public between 11:00 am and 12:00 pm on 25 September, prompting panic for some before the bureau quickly clarified that no real tsunami threat existed.

BoM has been testing new tsunami early-warning software as part of ongoing efforts to enhance its preparedness for real tsunami threats. 

The bureau acknowledged the test warning posts were issued in error and stated that the test warnings were “cancelled immediately after they were issued”. 

A spokesperson confirmed; “There is NO tsunami threat to Australia”.

Although the bureau had notified users on X (formerly Twitter) about the test prior to its occurrence, it appears not all users of the BoM Weather app or social media platforms saw the advance communication. 

This led to confusion, particularly for residents along the east coast of Australia. 

Users across New South Wales, Queensland, and even as far inland as Canberra, received the erroneous warning that a tsunami was approaching, following an 8.2 magnitude earthquake off New Zealand's west coast. 

A second message, moments later, informed users that the warning had been cancelled.

The bureau reiterated that these tests are essential for ensuring that BoM and its partners are prepared to handle real tsunami threats. 

The Joint Australian Tsunami Warning Centre (JATWC), operated by BoM, is responsible for detecting, monitoring, and warning of potential tsunamis affecting Australia’s coastline and offshore territories. 

The JATWC operates 24 hours a day and is regarded as the national authority on tsunami warnings.

BoM’s tsunami warning system forms part of its expensive Robust program, a seven-year technology overhaul aimed at addressing vulnerabilities in security and stability.