There are three distinct types of tsunami; distant, regional and local.
Here are the ways you will know that a tsunami is approaching.
If you live in a coastal area, check with your council about the level of risk a tsunami may pose.
Check with your local Civil Defence Emergency Management Group to find out what warning procedures you should expect.
Develop a Household Emergency Plan and prepare an Emergency Survival Kit so that you will cope with being on your own for three days or more.
Know where the nearest high ground is and how you will reach it. Plan your escape route now with your household.
If you are buying land, investing or building in a coastal area, talk to your council about the risks of a tsunami, coastal storm surge and erosion.
If you have not done so already, move immediately to the nearest high ground. High ground should be at least 35 metres above sea level or 1km inland.
Do not go sightseeing to look at the damage the tsunami has caused. Often the worst waves arrive 1 to 12 hours after the first wave.
Do not go down to the sea until you have been told it is safe to do so.