Definition of the word tidal wave

The term "tidal wave" originally referred to the rise and fall of the ocean's tides, which occur due to gravitational forces between the earth, moon, and sun. However, the term "tidal wave" became popularly associated with large and devastating wave events, typically caused by underwater earthquakes or volcanic eruptions. These natural disasters generate powerful sea waves, which can surge several meters in height, causing widespread destruction and loss of life. The scientifically correct term for these events is now "tsunami," which is derived from the Japanese word meaning "harbor wave" and more accurately describes the nature and behavior of these phenomena. Nonetheless, "tidal wave" remains in popular usage, especially in TV news headlines and movies, where it may be used interchangeably with tsunami to refer to the same type of catastrophic ocean wave.