The official tsunami warnings centre for Australia is the Joint Australian Tsunami Warning Centre. The Centre is operated by the Bureau of Meteorology and Geoscience Australia, and was established to provide Australia with an independent capability to detect, monitor, verify and warn the community of tsunami threats.
Tsunami warnings for Victoria can be found on the Joint Australian Tsunami Warning Centre website.

Types of Tsunami Warnings

National No Threat Bulletin

These bulletins are issued to advise the community that an undersea earthquake has been assessed, and that no tsunami threat exists.

National or State/Territory Tsunami Watch

These bulletins are issued to advise the community that a possible tsunami threat may exist, and that people should monitor the situation for further updates

State/Territory Tsunami Warning

These bulletins are issued to advise the community that a tsunami threat does exist, and to advise people what action they should take. Tsunami warnings have two categories of threat:

  1. Marine Environment – the tsunami will mainly affect the marine environment for specific coastal areas
  2. Land Inundation Threat – the tsunami may cause land flooding, dangerous waves and strong ocean currents for low-lying areas