A tsunami is also sometimes called a tidal wave.
Tsunamis don't get real names as hurricanes and typhoons do. It is often refereed to as the Boxing Day tsunami or the Indian Ocean tsunami.
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(in the US) it is known as Congress. In other nations it is known by other names.
A tsunami, like the category you posted it in?
Tsunami
Japan
The 2004 tsunami is commonly known as the Indian Ocean tsunami, or the Boxing Day tsunami, as it occurred on December 26.
(in the US) it is known as Congress. In other nations it is known by other names.
harbor waves and tsunami for japanese language
Polaris is known by other names such as "pole star" or "North pole". Polaris has also been referred to as "Steadfast".
Tsunami
For hurricanes : Janet (1955), Joan (1988), Juan (2003), Jeanne (2004). However it seems that Tsunamis don´t have names.