Although both are sea waves, a tsunami and a tidal wave are two different and unrelated phenomena. A tidal wave is a shallow water wave caused by the gravitational interactions between the Sun, Moon, and Earth. read more
A tidal wave is a shallow water wave caused by the gravitational interactions between the Sun, Moon, and Earth. ("Tidal wave" was used in earlier times to describe what we now call a tsunami.) A tsunamis is an ocean wave triggered by large earthquakes that occur near or under the ocean, volcanic eruptions, submarine landslides, or by onshore landslides in which large volumes of debris fall into the water. read more
Tidal waves are caused due to both the sun and the moon, but due to the close distance between the earth and moon, the effect moon has on tidal waves is much greater than the sun. Tsunamis can be generated by earthquakes, erupting submarine volcanoes or due to any gas bubble erupting in the sea or ocean. read more